diff options
66 files changed, 4601 insertions, 1 deletions
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index b61a1ebfd..b1624dafd 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -44,6 +44,12 @@ config TARGET_microblaze config TARGET_mips bool "mips" +config TARGET_nios + bool "nios" + +config TARGET_nios2 + bool "nios2" + config TARGET_powerpc bool "powerpc" @@ -97,6 +103,14 @@ if TARGET_m68k source "extra/Configs/Config.m68k" endif +if TARGET_nios +source "extra/Configs/Config.nios" +endif + +if TARGET_nios2 +source "extra/Configs/Config.nios2" +endif + if TARGET_microblaze source "extra/Configs/Config.microblaze" endif diff --git a/extra/Configs/Config.nios b/extra/Configs/Config.nios new file mode 100644 index 000000000..10a5f0a20 --- /dev/null +++ b/extra/Configs/Config.nios @@ -0,0 +1,31 @@ +# +# For a description of the syntax of this configuration file, +# see extra/config/Kconfig-language.txt +# + +config TARGET_ARCH + default "nios" + +config HAVE_ELF + bool + select ARCH_HAS_NO_MMU + select ARCH_LITTLE_ENDIAN + select HAVE_NO_PIC + select HAVE_NO_SHARED + select ARCH_HAS_NO_LDSO + default y + +config ARCH_CFLAGS + string + default "-m32 -funaligned-struct-hack" + +config ARCH_LDFLAGS + string + +config LIBGCC_CFLAGS + string + +config CROSS + string + default nios-elf- + diff --git a/extra/Configs/Config.nios2 b/extra/Configs/Config.nios2 new file mode 100644 index 000000000..cc7caf17d --- /dev/null +++ b/extra/Configs/Config.nios2 @@ -0,0 +1,30 @@ +# +# For a description of the syntax of this configuration file, +# see extra/config/Kconfig-language.txt +# + +config TARGET_ARCH + default "nios2" + +config HAVE_ELF + bool + select ARCH_HAS_NO_MMU + select ARCH_LITTLE_ENDIAN + select HAVE_NO_PIC + select HAVE_NO_SHARED + select ARCH_HAS_NO_LDSO + default y + +config ARCH_CFLAGS + string + +config ARCH_LDFLAGS + string + +config LIBGCC_CFLAGS + string + +config CROSS + string + default nios2-elf- + diff --git a/include/elf.h b/include/elf.h index 7ce1b398e..75042ca94 100644 --- a/include/elf.h +++ b/include/elf.h @@ -258,6 +258,8 @@ typedef struct #define EM_CYGNUS_FRV 0x5441 #define EM_ALPHA 0x9026 +#define EM_NIOS32 0xfebb /* Altera Nios 32 */ +#define EM_ALTERA_NIOS2 0x9ee5 /* Altera Nios II */ /* V850 backend magic number. Written in the absense of an ABI. */ #define EM_CYGNUS_V850 0x9080 @@ -2554,6 +2556,56 @@ typedef Elf32_Addr Elf32_Conflict; #define R_H8_ABS32 65 #define R_H8_ABS32A16 127 +/* Altera NIOS specific definitions. */ + +/* NIOS relocations. */ +#define R_NIOS_NONE 0 +#define R_NIOS_32 1 /* A 32 bit absolute relocation.*/ +#define R_NIOS_LO16_LO5 2 /* A LO-16 5 bit absolute relocation. */ +#define R_NIOS_LO16_HI11 3 /* A LO-16 top 11 bit absolute relocation. */ +#define R_NIOS_HI16_LO5 4 /* A HI-16 5 bit absolute relocation. */ +#define R_NIOS_HI16_HI11 5 /* A HI-16 top 11 bit absolute relocation. */ +#define R_NIOS_PCREL6 6 /* A 6 bit relative relocation. */ +#define R_NIOS_PCREL8 7 /* An 8 bit relative relocation. */ +#define R_NIOS_PCREL11 8 /* An 11 bit relative relocation. */ +#define R_NIOS_16 9 /* A 16 bit absolute relocation. */ +#define R_NIOS_H_LO5 10 /* Low 5-bits of absolute relocation in halfwords. */ +#define R_NIOS_H_HI11 11 /* Top 11 bits of 16-bit absolute relocation in halfwords. */ +#define R_NIOS_H_XLO5 12 /* Low 5 bits of top 16-bits of 32-bit absolute relocation in halfwords. */ +#define R_NIOS_H_XHI11 13 /* Top 11 bits of top 16-bits of 32-bit absolute relocation in halfwords. */ +#define R_NIOS_H_16 14 /* Half-word @h value */ +#define R_NIOS_H_32 15 /* Word @h value */ +#define R_NIOS_GNU_VTINHERIT 200 /* GNU extension to record C++ vtable hierarchy */ +#define R_NIOS_GNU_VTENTRY 201 /* GNU extension to record C++ vtable member usage */ +/* Keep this the last entry. */ +#define R_NIOS_NUM 202 + +/* NIOS II relocations */ +#define R_NIOS2_NONE 0 +#define R_NIOS2_S16 1 +#define R_NIOS2_U16 2 +#define R_NIOS2_PCREL16 3 +#define R_NIOS2_CALL26 4 +#define R_NIOS2_IMM5 5 +#define R_NIOS2_CACHE_OPX 6 +#define R_NIOS2_IMM6 7 +#define R_NIOS2_IMM8 8 +#define R_NIOS2_HI16 9 +#define R_NIOS2_LO16 10 +#define R_NIOS2_HIADJ16 11 +#define R_NIOS2_BFD_RELOC_32 12 +#define R_NIOS2_BFD_RELOC_16 13 +#define R_NIOS2_BFD_RELOC_8 14 +#define R_NIOS2_GPREL 15 +#define R_NIOS2_GNU_VTINHERIT 16 +#define R_NIOS2_GNU_VTENTRY 17 +#define R_NIOS2_UJMP 18 +#define R_NIOS2_CJMP 19 +#define R_NIOS2_CALLR 20 +#define R_NIOS2_ALIGN 21 +/* Keep this the last entry. */ +#define R_NIOS2_NUM 22 + __END_DECLS #endif /* elf.h */ diff --git a/libc/sysdeps/linux/Makefile b/libc/sysdeps/linux/Makefile index a95dd67ea..9aa585eec 100644 --- a/libc/sysdeps/linux/Makefile +++ b/libc/sysdeps/linux/Makefile @@ -19,7 +19,7 @@ TOPDIR=../../../ include $(TOPDIR)Rules.mak -ALL_SUBDIRS = arm common cris h8300 i386 m68k mips powerpc sh sh64 sparc v850 +ALL_SUBDIRS = arm common cris h8300 i386 m68k mips nios nios2 powerpc sh sh64 sparc v850 all: common $(TARGET_ARCH) diff --git a/libc/sysdeps/linux/nios/Makefile b/libc/sysdeps/linux/nios/Makefile new file mode 100644 index 000000000..ea56738dc --- /dev/null +++ b/libc/sysdeps/linux/nios/Makefile @@ -0,0 +1,86 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +TOPDIR=../../../../ +include $(TOPDIR)Rules.mak +ASFLAGS=$(CFLAGS) + +CRT0_SRC = crt0.S +CRT0_OBJ = crt0.o crt1.o +CTOR_TARGETS= + +SSRC= __longjmp.S bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S vfork.S +SOBJS=$(patsubst %.S,%.o, $(SSRC)) + +CSRC= brk.c crtbegin.c crtend.c +COBJS=$(patsubst %.c,%.o, $(CSRC)) + +OBJS=$(SOBJS) $(MOBJ) $(COBJS) + +all: $(OBJS) $(LIBC) + +$(LIBC): ar-target + +ar-target: $(OBJS) $(CRT0_OBJ) $(CTOR_TARGETS) + $(AR) $(ARFLAGS) $(LIBC) $(OBJS) + cp $(CRT0_OBJ) $(TOPDIR)lib/ + +$(CRT0_OBJ): $(CRT0_SRC) + $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(SOBJS): %.o : %.S + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(COBJS): %.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y) +crti.o: crti.S + $(CC) $(CFLAGS) -c crti.S -o crti.o + +$(TOPDIR)lib/crti.o: crti.o + $(INSTALL) -d $(TOPDIR)lib/ + cp crti.o $(TOPDIR)lib/ + +crtn.o: crtn.S + $(CC) $(CFLAGS) -c crtn.S -o crtn.o + +$(TOPDIR)lib/crtn.o: crtn.o + $(INSTALL) -d $(TOPDIR)lib/ + cp crtn.o $(TOPDIR)lib/ +else +$(TOPDIR)lib/crti.o: + $(INSTALL) -d $(TOPDIR)lib/ + $(AR) $(ARFLAGS) $(TOPDIR)lib/crti.o +$(TOPDIR)lib/crtn.o: + $(INSTALL) -d $(TOPDIR)lib/ + $(AR) $(ARFLAGS) $(TOPDIR)lib/crtn.o +endif + + +headers: + $(LN) -fs ../libc/sysdeps/linux/nios/fpu_control.h $(TOPDIR)/include/ + +clean: + $(RM) *.[oa] *~ core + $(RM) bits/sysnum.h + $(RM) $(TOPDIR)/include/fpu_control.h + diff --git a/libc/sysdeps/linux/nios/NM_Macros.S b/libc/sysdeps/linux/nios/NM_Macros.S new file mode 100644 index 000000000..da6136593 --- /dev/null +++ b/libc/sysdeps/linux/nios/NM_Macros.S @@ -0,0 +1,473 @@ + +;------------------------------ +; Macros I: Faux Instructions +; +; The following "faux instructions" are +; implemented here as macros: +; +; MOVIP register,constant MOVI with optional PFX & MOVHI, or BGEN +; ADDIP register,constant PFX and ADDI with optional PFX +; SUBIP register,constant PFX and SUBI with optional PFX +; CMPIP register,constant PFX and CMPI with optional PFX +; +; MOVI16 register,constant PFX and MOVI +; MOVI32 register,constant PFX, MOVI, PFX, and MOVHI +; MOVIA register,constant PFX and MOVHI on Nios32, and PFX and MOVI +; +; ANDIP register,constant PFX and ANDI +; ANDNIP register,constant PFX and ANDN +; ORIP register,constant PFX and ORI +; XORIP register,constant PFX and XORI +; +; _BSR address MOVIP address to %g7, and CALL +; _BR address MOVIP address to %g7, and JMP +; +; BEQ address SKPS cc_nz and BR, has delay slot +; BNE address SKPS cc_z and BR, has delay slot +; BLE address SKPS cc_gt and BR, has delay slot +; BLT address SKPS cc_ge and BR, has delay slot +; RESTRET RESTORE and JMP %i7 +; +;------------------------------- +; Macros II: Printing +; +; These macros are guaranteed *not* +; to have branch delay slot after them. +; +; NM_PrintChar char +; NM_Print "string" +; NM_PrintLn "string" Follows it with a carriage return +; NM_PrintRegister reg For debugging, prints register name & value +; +;------------------------------- +; Macros III: Inline Debugging +; +; These macros print various information +; using large sections of expanded inline code. +; They each use either few or no registers. +; Thus, they may be safely used in interrupt handlers. +; +; NM_D_TxChar char print char to UART, affects no registers +; NM_D_TxRegister char,char,register prints the two characters, and the hex register value + +; -------------------------------------- + + + .macro _pfx_op OP,reg,val,pForce=0 + .if (\pForce) || ((\val) > (31)) || ((\val) < (0)) + PFX %hi(\val) + .endif + \OP \reg,%lo(\val) + .endm + + .macro _bgen reg,val,bit + .if ((\val)==(1<<\bit)) + BGEN \reg,\bit + .equ _bgenBit,1 + .endif + .endm + + ;------------------------ + ; MOVIP %reg,32-bit-value + .macro MOVIP reg,val + ; Methodically test every BGEN possibility... + .equ _bgenBit,0 +.if 1 + _bgen \reg,\val,0 + _bgen \reg,\val,1 + _bgen \reg,\val,2 + _bgen \reg,\val,3 + _bgen \reg,\val,4 + _bgen \reg,\val,5 + _bgen \reg,\val,6 + _bgen \reg,\val,7 + _bgen \reg,\val,8 + _bgen \reg,\val,9 + _bgen \reg,\val,10 + _bgen \reg,\val,11 + _bgen \reg,\val,12 + _bgen \reg,\val,13 + _bgen \reg,\val,14 + _bgen \reg,\val,15 + _bgen \reg,\val,16 + _bgen \reg,\val,17 + _bgen \reg,\val,18 + _bgen \reg,\val,19 + _bgen \reg,\val,20 + _bgen \reg,\val,21 + _bgen \reg,\val,22 + _bgen \reg,\val,23 + _bgen \reg,\val,24 + _bgen \reg,\val,25 + _bgen \reg,\val,26 + _bgen \reg,\val,27 + _bgen \reg,\val,28 + _bgen \reg,\val,29 + _bgen \reg,\val,30 + _bgen \reg,\val,31 + + ; If no bgen fit... +.endif + .if !_bgenBit + .if ((\val) & 0xFFE0) + PFX %hi(\val) + .endif + MOVI \reg,%lo(\val) + .if __nios32__ + .if ((\val) & 0xffff0000) + .if ((\val) & 0xFFE00000) + PFX %xhi(\val) + .endif + MOVHI \reg,%xlo(\val) + .endif + .endif + .endif + + .endm + + ; ADDIP %reg,16-bit-value + .macro ADDIP reg,val + _pfx_op ADDI,\reg,\val + .endm + + ; SUBIP %reg,16-bit-value + .macro SUBIP reg,val + _pfx_op SUBI,\reg,\val + .endm + + ; CMPIP %reg,16-bit-value + .macro CMPIP reg,val + _pfx_op CMPI,\reg,\val + .endm + + ; ANDIP %reg,16-bit-value + .macro ANDIP reg,val + PFX %hi(\val) + AND \reg,%lo(\val) + .endm + + ; ANDNIP %reg,16-bit-value + .macro ANDNIP reg,val + PFX %hi(\val) + ANDN \reg,%lo(\val) + .endm + + ; ORIP %reg,16-bit-value + .macro ORIP reg,val + PFX %hi(\val) + OR \reg,%lo(\val) + .endm + + ; XORIP %reg,16-bit-value + .macro XORIP reg,val + PFX %hi(\val) + XOR \reg,%lo(\val) + .endm + + ; BEQ addr + .macro BEQ addr + IFS cc_eq + BR \addr + .endm + + ; BNE addr + .macro BNE addr + IFS cc_ne + BR \addr + .endm + + ; BLE addr + .macro BLE addr + SKPS cc_gt + BR \addr + .endm + + ; BLT addr + .macro BLT addr + SKPS cc_ge + BR \addr + .endm + + .macro digitToChar reg + ANDIP \reg,0x000f + CMPI \reg,10 + SKPS cc_lt + ADDI \reg,'A'-'0'-10 + PFX %hi('0') + ADDI \reg,%lo('0') + .endm + +; PUSHRET == dec sp, and stash return addr + .macro PUSHRET + SUBI %sp,2 + ST [%sp],%o7 + .endm +; POPRET == pop and jump + .macro POPRET + LD %o7,[%sp] + JMP %o7 + ADDI %sp,2 ; branch delay slot + .endm + +; RESTRET = restore & return + .macro RESTRET + JMP %i7 + RESTORE + .endm + + ;-------------------- + ; MOVI16 %reg,Address + ; + .macro MOVI16 reg,val + PFX %hi(\val) + MOVI \reg,%lo(\val) + .endm + + ;-------------------- + ; MOVI32 %reg,Address + ; + .macro MOVI32 reg,val + PFX %hi(\val) + MOVI \reg,%lo(\val) + PFX %xhi(\val) + MOVHI \reg,%xlo(\val) + .endm + + ;-------------------- + ; MOVIA %reg,Address + ; + .macro MOVIA reg,val + .if __nios32__ + MOVI32 \reg,\val + .else + MOVI16 \reg,\val + .endif + .endm + + ;-------------------- + ; _BR + + .macro _BR target,viaRegister=%g7 + MOVIA \viaRegister,\target@h + JMP \viaRegister + .endm + + ;-------------------- + ; _BSR + + .macro _BSR target,viaRegister=%g7 + MOVIA \viaRegister,\target@h + CALL \viaRegister + .endm + + ;--------------------- + ; NM_Print "Your String Here" + ; + .macro NM_Print string + + BR pastStringData\@ + NOP + +stringData\@: + .asciz "\string" + .align 1 ; aligns by 2^n +pastStringData\@: + MOVIA %o0,stringData\@ + _BSR NR_TxString + NOP + .endm + + .macro NM_PrintLn string + NM_Print "\string" + _BSR NR_TxCR + NOP + .endm + + .macro NM_PrintRegister reg ; affects %g0 & %g1 & %g7, but thrashes the CWP a bit + SAVE %sp,-16 + NM_Print "\reg = " + RESTORE + MOV %g0,\reg + SAVE %sp,-16 + MOV %o0,%g0 + _BSR NR_TxHex + NOP + _BSR NR_TxCR + NOP + RESTORE + .endm + + .macro NM_PrintChar char + MOVIP %o0,\char + _BSR NR_TxChar + NOP + .endm + + .macro NM_Print2Chars char1,char2 + MOVIP %o0,(\char2<<8)+\char1 + _BSR NR_TxChar + NOP + _BSR NR_TxChar + LSRI %o0,8 + .endm + + + +; --------------------------- +; Completely inline UART sends +; Send the char, or %g7 if not there. +; Trashes %g5 and %g6 and %g7... + + .macro NM_TxChar char=0 +;NM_D_Delay 1000 + MOVIA %g6,NA_UARTBase +txCharLoop\@: + PFX 2 +.if \char + LD %g7,[%g6] + SKP1 %g7,6 +.else + LD %g5,[%g6] + SKP1 %g5,6 +.endif + BR txCharLoop\@ + NOP +.if \char + MOVIP %g7,\char +.endif + PFX 1 + ST [%g6],%g7 +;NM_D_Delay 4 + .endm + + .macro NM_TxCR + NM_TxChar 13 + NM_TxChar 10 + .endm + + .macro NM_TxHexDigit,reg,shift + MOV %g7,\reg + LSRI %g7,\shift + ANDIP %g7,0x000f + CMPI %g7,10 + SKPS cc_lt + ADDIP %g7,'A'-'0'-10 + ADDIP %g7,'0' + NM_TxChar + .endm + + .macro NM_TxHex + + .if __nios32__ + NM_TxHexDigit %g0,28 + NM_TxHexDigit %g0,24 + NM_TxHexDigit %g0,20 + NM_TxHexDigit %g0,16 + .endif + + NM_TxHexDigit %g0,12 + NM_TxHexDigit %g0,8 + NM_TxHexDigit %g0,4 + NM_TxHexDigit %g0,0 + .endm + + + + + + + + + + +; ---------------------- +; The following macros are +; rather mighty. They expand +; to large inline code for +; printing various things to +; the serial port. They are +; useful for debugging +; trap handlers, where you +; can't just go and call +; NR_TxChar and such, because, +; well, the CWP might be +; off limits! +; +; They do, however, presume +; that the stack is in good +; working order. + + +.macro NM_D_PushGRegisters + SUBIP %sp,16+69 ; oddball number so if we accidentally see it, it looks funny. + STS [%sp,16+0],%g0 + STS [%sp,16+1],%g1 + STS [%sp,16+2],%g2 + STS [%sp,16+3],%g3 + STS [%sp,16+4],%g4 + STS [%sp,16+5],%g5 + STS [%sp,16+6],%g6 + STS [%sp,16+7],%g7 + .endm + +.macro NM_D_PopGRegisters + LDS %g0,[%sp,16+0] + LDS %g1,[%sp,16+1] + LDS %g2,[%sp,16+2] + LDS %g3,[%sp,16+3] + LDS %g4,[%sp,16+4] + LDS %g5,[%sp,16+5] + LDS %g6,[%sp,16+6] + LDS %g7,[%sp,16+7] + ADDIP %sp,16+69 ; must match the push + .endm + + +.macro NM_D_TxChar c + SUBI %sp,16+8 ; 32 or 16 bit, that's enough space + STS [%sp,16+0],%g6 + STS [%sp,16+0],%g7 + NM_TxChar \c + LDS %g6,[%sp,16+0] + LDS %g7,[%sp,16+1] + ADDI %sp,16+8 + .endm + +.macro NM_D_TxChar3 c1,c2,c3 + NM_D_TxChar '<' + NM_D_TxChar \c1 + NM_D_TxChar \c2 + NM_D_TxChar \c3 + NM_D_TxChar '>' +.endm + +.macro NM_D_TxRegister r,n,reg + NM_D_PushGRegisters + NM_TxChar '(' + NM_TxChar \r + NM_TxChar \n + NM_TxChar ':' + MOV %g0,\reg + NM_TxHex + NM_TxChar ')' + NM_D_PopGRegisters +.endm + +.macro NM_D_TxReg r,n,reg + NM_D_TxRegister \r,\n,\reg +.endm + +; Do a delay loop, affects no registers. + +.macro NM_D_Delay d + SUBI %sp,16+4 + STS [%sp,16+0],%g0 + MOVIP %g0,\d +NM_D_DelayLoop\@: + IFRnz %g0 + BR NM_D_DelayLoop\@ + SUBI %g0,1 + LDS %g0,[%sp,16+0] + ADDI %sp,16+4 +.endm + diff --git a/libc/sysdeps/linux/nios/NR_Math1.S b/libc/sysdeps/linux/nios/NR_Math1.S new file mode 100644 index 000000000..5d5169ba8 --- /dev/null +++ b/libc/sysdeps/linux/nios/NR_Math1.S @@ -0,0 +1,63 @@ + + + .include "NM_Macros.S" + + .file "okmul.c" +gcc2_compiled.: + .text + .p2align 1 + .globl __mulsi3 + .type __mulsi3,@function +__mulsi3: + + ;SKP0 %o0,31 + ;NEG %o1 + ;ABS %o0 + + .MACRO ZSTEP bit + SKP0 %o0,\bit + ADD %g0,%o1 + LSLI %o1,1 + .ENDM + + MOVI %g0,0 + ZSTEP 0 + ZSTEP 1 + ZSTEP 2 + ZSTEP 3 + ZSTEP 4 + ZSTEP 5 + ZSTEP 6 + ZSTEP 7 + ZSTEP 8 + ZSTEP 9 + ZSTEP 10 + ZSTEP 11 + ZSTEP 12 + ZSTEP 13 + ZSTEP 14 + ZSTEP 15 + ZSTEP 16 + ZSTEP 17 + ZSTEP 18 + ZSTEP 19 + ZSTEP 20 + ZSTEP 21 + ZSTEP 22 + ZSTEP 23 + ZSTEP 24 + ZSTEP 25 + ZSTEP 26 + ZSTEP 27 + ZSTEP 28 + ZSTEP 29 + ZSTEP 30 + ZSTEP 31 + ; No bit 31: we already set %o0 to positive + + JMP %o7 + MOV %o0,%g0 + +.Lfe1: + .size __mulsi3,.Lfe1-__mulsi3 + diff --git a/libc/sysdeps/linux/nios/__longjmp.S b/libc/sysdeps/linux/nios/__longjmp.S new file mode 100644 index 000000000..c2b1979cc --- /dev/null +++ b/libc/sysdeps/linux/nios/__longjmp.S @@ -0,0 +1,108 @@ +/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + +;---------------------------------------- +; Name: __longjmp +; Description: Restore the current context +; as saved by a previous nr_setjmp +; Input: %o0: jmp_buf (ptr to) array to restore context from +; %o1: integer to return +; Output: %o0 = 0 the first time we're called, or +; whatever longjmp returns later +; Side Effects: uses %g0, %g1 & %g2 +; CWP Depth: 0 +; + + .align 2 + .global __longjmp +__longjmp: + ; + ; The way we'll do this is by executing + ; RESTORE instructions until the old + ; return address matches. Then we'll + ; jump to where setjmp was called from. + ; + ; Since we're moving the window pointer + ; all over the place, we'll naturally + ; only use the %g registers. + ; + + mov %g0,%o0 ; %g0 -> jmp_buf + mov %g1,%o1 ; %g1 = return value + pfx jmpbuf_callersret + ld %g2,[%g0] ; %g2 = old return address +__longjmp_loop: + cmp %g2,%i7 ; Are we there yet? + skps cc_ne + br __longjmp_done + nop ; (delay slot) + + br __longjmp_loop + restore ; (delay slot) + ; + ; One might put in a watchdog counter here, to + ; prevent a runaway stack crawl... but what would that + ; accomplish? What error can we throw? To whom? + ; + +__longjmp_done: + pfx jmpbuf_l0 ; Restore local register l0 + ld %l0,[%g0] + pfx jmpbuf_l1 ; Restore local register l1 + ld %l1,[%g0] + pfx jmpbuf_l2 ; Restore local register l2 + ld %l2,[%g0] + pfx jmpbuf_l3 ; Restore local register l3 + ld %l3,[%g0] + pfx jmpbuf_l4 ; Restore local register l4 + ld %l4,[%g0] + pfx jmpbuf_l5 ; Restore local register l5 + ld %l5,[%g0] + pfx jmpbuf_l6 ; Restore local register l6 + ld %l6,[%g0] + pfx jmpbuf_l7 ; Restore local register l7 + ld %l7,[%g0] + pfx jmpbuf_i0 ; Restore input register i0 + ld %i0,[%g0] + pfx jmpbuf_i1 ; Restore input register i1 + ld %i1,[%g0] + pfx jmpbuf_i2 ; Restore input register i2 + ld %i2,[%g0] + pfx jmpbuf_i3 ; Restore input register i3 + ld %i3,[%g0] + pfx jmpbuf_i4 ; Restore input register i4 + ld %i4,[%g0] + pfx jmpbuf_i5 ; Restore input register i5 + ld %i5,[%g0] + pfx jmpbuf_jmpret + ld %o7,[%g0] ; set fake return address + jmp %o7 ; and kinda return there. + mov %o0,%g1 ; (delay slot) return value + + + + + + + + diff --git a/libc/sysdeps/linux/nios/bits/endian.h b/libc/sysdeps/linux/nios/bits/endian.h new file mode 100644 index 000000000..252597931 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/endian.h @@ -0,0 +1,8 @@ +/* nios is little-endian. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +//mle +#define __BYTE_ORDER __LITTLE_ENDIAN diff --git a/libc/sysdeps/linux/nios/bits/fcntl.h b/libc/sysdeps/linux/nios/bits/fcntl.h new file mode 100644 index 000000000..e2974b9f7 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/fcntl.h @@ -0,0 +1,180 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + + +#include <sys/types.h> + +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#define O_CREAT 0100 /* not fcntl */ +#define O_EXCL 0200 /* not fcntl */ +#define O_NOCTTY 0400 /* not fcntl */ +#define O_TRUNC 01000 /* not fcntl */ +#define O_APPEND 02000 +#define O_NONBLOCK 04000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 010000 +#define O_FSYNC O_SYNC +#define O_ASYNC 020000 + +#ifdef __USE_GNU +# define O_DIRECTORY 040000 /* Must be a directory. */ +# define O_NOFOLLOW 0100000 /* Do not follow links. */ +# define O_DIRECT 0200000 /* Direct disk access. */ +# define O_STREAMING 04000000/* streaming access */ +#endif + +/* For now Linux has synchronisity options for data and read operations. + We define the symbols here but let them do the same as O_SYNC since + this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC O_SYNC /* Synchronize data. */ +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0400000 +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 /* Get record locking info. */ +# define F_SETLK 6 /* Set record locking info (non-blocking). */ +# define F_SETLKW 7 /* Set record locking info (blocking). */ +#else +# define F_GETLK F_GETLK64 /* Get record locking info. */ +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ +#endif +#define F_GETLK64 12 /* Get record locking info. */ +#define F_SETLK64 13 /* Set record locking info (non-blocking). */ +#define F_SETLKW64 14 /* Set record locking info (blocking). */ + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* Set number of signal to be sent. */ +# define F_GETSIG 11 /* Get number of signal to be sent. */ +#endif + +#ifdef __USE_GNU +# define F_SETLEASE 1024 /* Set a lease. */ +# define F_GETLEASE 1025 /* Enquire what lease is active. */ +# define F_NOTIFY 1026 /* Request notfications on a directory. */ +#endif + +/* For F_[GET|SET]FL. */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +#define F_RDLCK 0 /* Read lock. */ +#define F_WRLCK 1 /* Write lock. */ +#define F_UNLCK 2 /* Remove lock. */ + +/* for old implementation of bsd flock () */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +#ifdef __USE_BSD +/* Operations for bsd flock(), also used by the kernel implementation */ +# define LOCK_SH 1 /* shared lock */ +# define LOCK_EX 2 /* exclusive lock */ +# define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +# define LOCK_UN 8 /* remove lock */ +#endif + +#ifdef __USE_GNU +# define LOCK_MAND 32 /* This is a mandatory flock: */ +# define LOCK_READ 64 /* ... which allows concurrent read operations. */ +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */ +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */ +#endif + +#ifdef __USE_GNU +/* Types of directory notifications that may be requested with F_NOTIFY. */ +# define DN_ACCESS 0x00000001 /* File accessed. */ +# define DN_MODIFY 0x00000002 /* File modified. */ +# define DN_CREATE 0x00000004 /* File created. */ +# define DN_DELETE 0x00000008 /* File removed. */ +# define DN_RENAME 0x00000010 /* File renamed. */ +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */ +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ +#endif + +struct flock + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ +#else + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ +#endif + __pid_t l_pid; /* Process holding the lock. */ + }; + +#ifdef __USE_LARGEFILE64 +struct flock64 + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ + }; +#endif + +/* Define some more compatibility macros to be backward compatible with + BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/libc/sysdeps/linux/nios/bits/kernel_types.h b/libc/sysdeps/linux/nios/bits/kernel_types.h new file mode 100644 index 000000000..acbb0c592 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/kernel_types.h @@ -0,0 +1,43 @@ +/* Note that we use the exact same include guard #define names + * as asm/posix_types.h. This will avoid gratuitous conflicts + * with the posix_types.h kernel header, and will ensure that + * our private content, and not the kernel header, will win. + * -Erik + */ +#ifndef __ARCH_NIOS_POSIX_TYPES_H +#define __ARCH_NIOS_POSIX_TYPES_H + +typedef unsigned short __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef long long __kernel_loff_t; + +typedef struct { +#ifdef __USE_ALL + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ARCH_NIOS2_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/nios/bits/mathdef.h b/libc/sysdeps/linux/nios/bits/mathdef.h new file mode 100644 index 000000000..44d7f0dde --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/mathdef.h @@ -0,0 +1,48 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#if !defined _MATH_H && !defined _COMPLEX_H +# error "Never use <bits/mathdef.h> directly; include <math.h> instead" +#endif + +#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF +# define _MATH_H_MATHDEF 1 + +/* GCC does not promote `float' values to `double'. */ +typedef float float_t; /* `float' expressions are evaluated as + `float'. */ +typedef double double_t; /* `double' expressions are evaluated as + `double'. */ + +/* Define `INFINITY' as value of type `float'. */ +# define INFINITY HUGE_VALF + + +/* The values returned by `ilogb' for 0 and NaN respectively. */ +# define FP_ILOGB0 (-2147483647) +# define FP_ILOGBNAN (2147483647) + +#endif /* ISO C99 */ + +#ifndef __NO_LONG_DOUBLE_MATH +/* Signal that we do not really have a `long double'. This disables the + declaration of all the `long double' function variants. */ +/* XXX The FPA does support this but the patterns in GCC are currently + turned off. */ +# define __NO_LONG_DOUBLE_MATH 1 +#endif diff --git a/libc/sysdeps/linux/nios/bits/mman.h b/libc/sysdeps/linux/nios/bits/mman.h new file mode 100644 index 000000000..34f14ee5b --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/mman.h @@ -0,0 +1,75 @@ +/* Definitions for POSIX memory map interface. Linux/m68k version. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +#endif diff --git a/libc/sysdeps/linux/nios/bits/resource.h b/libc/sysdeps/linux/nios/bits/resource.h new file mode 100644 index 000000000..06ecca45a --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/resource.h @@ -0,0 +1,209 @@ +/* Bit values & structures for resource limits. Linux/x86 version. + Copyright (C) 1994,1996,1997,1998,1999,2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_RESOURCE_H +# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." +#endif + +#include <bits/types.h> + +/* Transmute defines to enumerations. The macro re-definitions are + necessary because some programs want to test for operating system + features with #ifdef RUSAGE_SELF. In ISO C the reflexive + definition is a no-op. */ + +/* Kinds of resource limit. */ +enum __rlimit_resource +{ + /* Per-process CPU limit, in seconds. */ + RLIMIT_CPU = 0, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + RLIMIT_FSIZE = 1, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + RLIMIT_DATA = 2, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + RLIMIT_STACK = 3, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + RLIMIT_CORE = 4, +#define RLIMIT_CORE RLIMIT_CORE + + /* Largest resident set size, in bytes. + This affects swapping; processes that are exceeding their + resident set size will be more likely to have physical memory + taken from them. */ + RLIMIT_RSS = 5, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + RLIMIT_NOFILE = 7, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit. */ + RLIMIT_AS = 9, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + RLIMIT_NPROC = 6, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + RLIMIT_MEMLOCK = 8, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + /* Maximum number of file locks. */ + RLIMIT_LOCKS = 10, +#define RLIMIT_LOCKS RLIMIT_LOCKS + + RLIMIT_NLIMITS = 11, + RLIM_NLIMITS = RLIMIT_NLIMITS +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS +}; + +/* Value to indicate that there is no limit. */ +#ifndef __USE_FILE_OFFSET64 +# define RLIM_INFINITY ((unsigned long int)(~0UL)) +#else +# define RLIM_INFINITY 0xffffffffffffffffuLL +#endif + +#ifdef __USE_LARGEFILE64 +# define RLIM64_INFINITY 0xffffffffffffffffuLL +#endif + +/* We can represent all limits. */ +#define RLIM_SAVED_MAX RLIM_INFINITY +#define RLIM_SAVED_CUR RLIM_INFINITY + + +/* Type for resource quantity measurement. */ +#ifndef __USE_FILE_OFFSET64 +typedef __rlim_t rlim_t; +#else +typedef __rlim64_t rlim_t; +#endif +#ifdef __USE_LARGEFILE64 +typedef __rlim64_t rlim64_t; +#endif + +struct rlimit + { + /* The current (soft) limit. */ + rlim_t rlim_cur; + /* The hard limit. */ + rlim_t rlim_max; + }; + +#ifdef __USE_LARGEFILE64 +struct rlimit64 + { + /* The current (soft) limit. */ + rlim64_t rlim_cur; + /* The hard limit. */ + rlim64_t rlim_max; + }; +#endif + +/* Whose usage statistics do you want? */ +enum __rusage_who +{ + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1, +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#define __need_timeval +#include <bits/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +struct rusage + { + /* Total amount of user time used. */ + struct timeval ru_utime; + /* Total amount of system time used. */ + struct timeval ru_stime; + /* Maximum resident set size (in kilobytes). */ + long int ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long int ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long int ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long int ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long int ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long int ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long int ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long int ru_inblock; + /* Number of output operations via the file system. */ + long int ru_oublock; + /* Number of IPC messages sent. */ + long int ru_msgsnd; + /* Number of IPC messages received. */ + long int ru_msgrcv; + /* Number of signals delivered. */ + long int ru_nsignals; + /* Number of voluntary context switches, i.e. because the process + gave up the process before it had to (usually to wait for some + resource to be available). */ + long int ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long int ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which +{ + PRIO_PROCESS = 0, /* WHO is a process ID. */ +#define PRIO_PROCESS PRIO_PROCESS + PRIO_PGRP = 1, /* WHO is a process group ID. */ +#define PRIO_PGRP PRIO_PGRP + PRIO_USER = 2 /* WHO is a user ID. */ +#define PRIO_USER PRIO_USER +}; diff --git a/libc/sysdeps/linux/nios/bits/setjmp.h b/libc/sysdeps/linux/nios/bits/setjmp.h new file mode 100644 index 000000000..33467f7d7 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/setjmp.h @@ -0,0 +1,74 @@ +/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Define the machine-dependent type `jmp_buf'. Nios version. */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM + +#include <signal.h> + +typedef struct + { + /* There are eight 4-byte local registers saved. */ + long int __lregs[8]; + + /* There are six 4-byte input registers saved. */ + long int __iregs[6]; + + /* The SP, return address to caller (also for longjmp) + and return address of caller are saved. */ + int *__sp; + int *__jmpret; + int *__callersret; + + } __jmp_buf[1]; + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)->__sp) + +#else /* _ASM */ + +#define jmpbuf_l0 0x00 +#define jmpbuf_l1 0x01 +#define jmpbuf_l2 0x02 +#define jmpbuf_l3 0x03 +#define jmpbuf_l4 0x04 +#define jmpbuf_l5 0x05 +#define jmpbuf_l6 0x06 +#define jmpbuf_l7 0x07 + +#define jmpbuf_i0 0x08 +#define jmpbuf_i1 0x09 +#define jmpbuf_i2 0x0a +#define jmpbuf_i3 0x0b +#define jmpbuf_i4 0x0c +#define jmpbuf_i5 0x0d + +#define jmpbuf_sp 0x0e +#define jmpbuf_jmpret 0x0f +#define jmpbuf_callersret 0x10 + +#endif /* _ASM */ + + diff --git a/libc/sysdeps/linux/nios/bits/sigcontextinfo.h b/libc/sysdeps/linux/nios/bits/sigcontextinfo.h new file mode 100644 index 000000000..caf1cf4ce --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/sigcontextinfo.h @@ -0,0 +1,27 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 1999. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define SIGCONTEXT struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS +#define GET_PC(ctx) ((void *) ((ctx)->regs.pc)) + +/* now way for nios to do GET_FRAME(ctx), it is not saved in ctx */ +#define GET_STACK(ctx) ((void *) (ctx)->regs.u_regs[14]) +#define CALL_SIGHANDLER(handler, signo, ctx) \ + (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx)) diff --git a/libc/sysdeps/linux/nios/bits/stackinfo.h b/libc/sysdeps/linux/nios/bits/stackinfo.h new file mode 100644 index 000000000..e7fbf5633 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/stackinfo.h @@ -0,0 +1,28 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* This file contains a bit of information about the stack allocation + of the processor. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On nios II the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/nios/bits/stat.h b/libc/sysdeps/linux/nios/bits/stat.h new file mode 100644 index 000000000..213dbe267 --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/stat.h @@ -0,0 +1,134 @@ +/* Copyright (C) 1992,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_STAT_H +# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." +#endif + +/* Versions of the `struct stat' data structure. */ +#define _STAT_VER_LINUX_OLD 1 +#define _STAT_VER_KERNEL 1 +#define _STAT_VER_SVR4 2 +#define _STAT_VER_LINUX 3 +#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */ + +/* Versions of the `xmknod' interface. */ +#define _MKNOD_VER_LINUX 1 +#define _MKNOD_VER_SVR4 2 +#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */ + + +struct stat + { + __dev_t st_dev; /* Device. */ + unsigned short int __pad1; +#ifndef __USE_FILE_OFFSET64 + __ino_t st_ino; /* File serial number. */ +#else + __ino_t __st_ino; /* 32bit file serial number. */ +#endif + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; +#ifndef __USE_FILE_OFFSET64 + __off_t st_size; /* Size of file, in bytes. */ +#else + __off64_t st_size; /* Size of file, in bytes. */ +#endif + __blksize_t st_blksize; /* Optimal block size for I/O. */ + +#ifndef __USE_FILE_OFFSET64 + __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */ +#else + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#endif + __time_t st_atime; /* Time of last access. */ + unsigned long int __unused1; + __time_t st_mtime; /* Time of last modification. */ + unsigned long int __unused2; + __time_t st_ctime; /* Time of last status change. */ + unsigned long int __unused3; +#ifndef __USE_FILE_OFFSET64 + unsigned long int __unused4; + unsigned long int __unused5; +#else + __ino64_t st_ino; /* File serial number. */ +#endif + }; + +#ifdef __USE_LARGEFILE64 +struct stat64 + { + __dev_t st_dev; /* Device. */ + unsigned short int __pad1; + + __ino_t __st_ino; /* 32bit file serial number. */ + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; + __off64_t st_size; /* Size of file, in bytes. */ + __blksize_t st_blksize; /* Optimal block size for I/O. */ + + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ + __time_t st_atime; /* Time of last access. */ + unsigned long int __unused1; + __time_t st_mtime; /* Time of last modification. */ + unsigned long int __unused2; + __time_t st_ctime; /* Time of last status change. */ + unsigned long int __unused3; + __ino64_t st_ino; /* File serial number. */ + }; +#endif + +/* Tell code we have these members. */ +#define _STATBUF_ST_BLKSIZE +#define _STATBUF_ST_RDEV + +/* Encoding of the file mode. */ + +#define __S_IFMT 0170000 /* These bits determine file type. */ + +/* File types. */ +#define __S_IFDIR 0040000 /* Directory. */ +#define __S_IFCHR 0020000 /* Character device. */ +#define __S_IFBLK 0060000 /* Block device. */ +#define __S_IFREG 0100000 /* Regular file. */ +#define __S_IFIFO 0010000 /* FIFO. */ +#define __S_IFLNK 0120000 /* Symbolic link. */ +#define __S_IFSOCK 0140000 /* Socket. */ + +/* POSIX.1b objects. Note that these macros always evaluate to zero. But + they do it by enforcing the correct use of the macros. */ +#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) + +/* Protection bits. */ + +#define __S_ISUID 04000 /* Set user ID on execution. */ +#define __S_ISGID 02000 /* Set group ID on execution. */ +#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ +#define __S_IREAD 0400 /* Read by owner. */ +#define __S_IWRITE 0200 /* Write by owner. */ +#define __S_IEXEC 0100 /* Execute by owner. */ diff --git a/libc/sysdeps/linux/nios/bits/syscalls.h b/libc/sysdeps/linux/nios/bits/syscalls.h new file mode 100644 index 000000000..21f4a370c --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/syscalls.h @@ -0,0 +1,12 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +#include <features.h> +/* Do something very evil for now. Until we include our out syscall + * macros, short circuit bits/syscall.h and use asm/unistd.h instead */ +#include <asm/unistd.h> +#endif /* _BITS_SYSCALLS_H */ + diff --git a/libc/sysdeps/linux/nios/bits/wordsize.h b/libc/sysdeps/linux/nios/bits/wordsize.h new file mode 100644 index 000000000..ba643b60a --- /dev/null +++ b/libc/sysdeps/linux/nios/bits/wordsize.h @@ -0,0 +1,19 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/nios/brk.c b/libc/sysdeps/linux/nios/brk.c new file mode 100644 index 000000000..6cacbfd5c --- /dev/null +++ b/libc/sysdeps/linux/nios/brk.c @@ -0,0 +1,45 @@ +/* brk system call for Linux/Nios2. + Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <unistd.h> +#include <sys/syscall.h> +#include <errno.h> + + +/* This must be initialized data because commons can't have aliases. */ +void *___brk_addr = 0; + + +int brk (void *addr) +{ + void *newbrk; + register int g1 asm("%g1") = __NR_brk; + register void *o0 asm("%o0") = addr; + + asm volatile ("trap 63\n\t" : "=r"(newbrk) : "0"(o0), "r"(g1)); + + ___brk_addr = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} diff --git a/libc/sysdeps/linux/nios/bsd-_setjmp.S b/libc/sysdeps/linux/nios/bsd-_setjmp.S new file mode 100644 index 000000000..f2f0f2396 --- /dev/null +++ b/libc/sysdeps/linux/nios/bsd-_setjmp.S @@ -0,0 +1 @@ +/* _setjmp in setjmp.S */
\ No newline at end of file diff --git a/libc/sysdeps/linux/nios/bsd-setjmp.S b/libc/sysdeps/linux/nios/bsd-setjmp.S new file mode 100644 index 000000000..36f2bab1c --- /dev/null +++ b/libc/sysdeps/linux/nios/bsd-setjmp.S @@ -0,0 +1 @@ +/* setjmp in setjmp.S */
\ No newline at end of file diff --git a/libc/sysdeps/linux/nios/clone.S b/libc/sysdeps/linux/nios/clone.S new file mode 100644 index 000000000..a3098f5f8 --- /dev/null +++ b/libc/sysdeps/linux/nios/clone.S @@ -0,0 +1,91 @@ +/* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@tamu.edu). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* clone() is even more special than fork() as it mucks with stacks + and invokes a function in the right context after its all over. */ + +#include <asm/errno.h> +#include <asm/unistd.h> +#include "NM_Macros.S" + +/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ + + .text + .align 2 + .globl __clone + .type __clone,@function + +__clone: + save %sp,-16 + + MOVIP %l0, -EINVAL + /* sanity check arguments */ + skprnz %i0 /* no NULL function pointers */ + br CLONE_ERROR_LABEL + mov %o0, %i2 + + skprnz %i1 /* no NULL stack pointers */ + br CLONE_ERROR_LABEL + mov %o1, %i1 + + /* Do the system call */ + MOVIP %g1, __NR_clone + trap 63 + + /* if ret >=0? */ + cmpi %o0, 0 + skps cc_pl + br CLONE_ERROR_LABEL + mov %l0, %o0 + + /* Start thread */ + skprz %o1 + br __thread_start + nop + mov %i0, %o0 + ret + restore + +CLONE_ERROR_LABEL: + neg %l0 + MOVIA %g1, __errno_location@h + call %g1 + nop + st [%o0], %l0 /* store errno */ + + xor %i0, %i0 + dec %i0 /* retval=-1 */ + ret + restore + + .size __clone, .-__clone + + .type __thread_start,@function + +__thread_start: + call %i0 + mov %o0, %i3 + MOVIA %g1, _exit@h + call %g1 + nop + + .size __thread_start, .-__thread_start + +.globl clone; + clone = __clone diff --git a/libc/sysdeps/linux/nios/crt0.S b/libc/sysdeps/linux/nios/crt0.S new file mode 100644 index 000000000..bbf4ede6a --- /dev/null +++ b/libc/sysdeps/linux/nios/crt0.S @@ -0,0 +1,57 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. + +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <features.h> +#include <asm/unistd.h> +#include "NM_Macros.S" +#define __ASSEMBLY__ +#include <asm/ptrace.h> /* for REGWIN_SZ */ + + .global _start + .type __start,@function + .weak _init + .weak _fini + .type __uClibc_start_main,@function + .type __h_errno_location, @function + .type _stdio_init, @function + .type _stdio_term, @function + + .text + +_start: + nop + nop + + lds %o0,[%sp, (REGWIN_SZ / 4) + 0] // main's argc + lds %o1,[%sp, (REGWIN_SZ / 4) + 1] // main's argv + lds %o2,[%sp, (REGWIN_SZ / 4) + 2] // main's envp + + MOVIA %o3, _init@h + MOVIA %o4, _fini@h + MOVIA %o5, __uClibc_start_main@h + + call %o5 + nop + + + /* If that didn't kill us, ... */ +__exit: + MOVIP %g1, __NR_exit + trap 63 +
\ No newline at end of file diff --git a/libc/sysdeps/linux/nios/crt0.c b/libc/sysdeps/linux/nios/crt0.c new file mode 100644 index 000000000..48b1a0f07 --- /dev/null +++ b/libc/sysdeps/linux/nios/crt0.c @@ -0,0 +1,73 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. + +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <asm/ptrace.h> + +#define nop() __asm__ __volatile__ ("nop") + +extern inline int _stack_frame_address(void) +{ + int retval; + __asm__ __volatile__( + "mov %0, %%fp\n\t" + : "=r" (retval) ); + return retval; +} + +void __uClibc_main(int argc,void *argv,void *envp); + +void _start(void) +{ + void **p; + + nop(); /* placeholder for breakpoint */ + nop(); + + p = (int *) (_stack_frame_address() + REGWIN_SZ); + __uClibc_main( (int) *p, *(p+1), *(p+2) ); + +/* If that didn't kill us, ... */ + + asm("trap 0"); +} + +/* + * this was needed for gcc/g++-builds, atexit was not getting included + * for some stupid reason, this gets us a compiler + */ +// empty_func: +// // rts +// .weak atexit +// atexit = empty_func +// +// /* +// * a little bit of stuff to support C++ +// */ +// .section .ctors,"aw" +// .align 4 +// .global __CTOR_LIST__ +// __CTOR_LIST__: +// .long -1 +// +// .section .dtors,"aw" +// .align 4 +// .global __DTOR_LIST__ +// __DTOR_LIST__: +// .long -1 + diff --git a/libc/sysdeps/linux/nios/crtbegin.c b/libc/sysdeps/linux/nios/crtbegin.c new file mode 100644 index 000000000..c52999027 --- /dev/null +++ b/libc/sysdeps/linux/nios/crtbegin.c @@ -0,0 +1,37 @@ +#include <errno.h> +#include <stdlib.h> +/* +static void (*__CTOR_LIST__[1]) __P((void)) + __attribute__((__unused__)) + __attribute__((section(".ctors"))) = { (void *)0 }; + +static void (*__DTOR_LIST__[1]) __P((void)) + __attribute__((section(".dtors"))) = { (void *)-1 }; +*/ +extern void (*__DTOR_LIST__[]) __P((void)); +static void __do_global_dtors_aux __P((void)); + +static void +__do_global_dtors_aux() +{ + void (**p)(void) = __DTOR_LIST__ + 1; + + while (*p) + (**p++)(); +} + +static void dummy_fini(void) __attribute__((section(".trash"))); + +void +dummy_fini(void) +{ + static void (* volatile call__dtors)(void) = __do_global_dtors_aux; + /* + * Call global destructors. + */ + /* prevent function pointer constant propagation */ + __asm__ __volatile__ (".section .fini"); + (*call__dtors)(); + __asm__ __volatile__ (".section .trash"); + +} diff --git a/libc/sysdeps/linux/nios/crtend.c b/libc/sysdeps/linux/nios/crtend.c new file mode 100644 index 000000000..26af229af --- /dev/null +++ b/libc/sysdeps/linux/nios/crtend.c @@ -0,0 +1,43 @@ +#include <errno.h> +#include <stdlib.h> +/* +static void (*__CTOR_END__[1]) __P((void)) + __attribute__((section(".ctors"))) = { (void *)-1 }; + +static void (*__DTOR_END__[1]) __P((void)) + __attribute__((__unused__)) + __attribute__((section(".dtors"))) = { (void *)0 }; +*/ +extern void (*__CTOR_END__[]) __P((void)); +static void __do_global_ctors_aux __P((void)); + +static void +__do_global_ctors_aux() +{ + void (**p)(void) = __CTOR_END__ - 1; + + while (*p) + (**p--)(); +} + +static void dummy_init(void) __attribute__((section(".trash"))); + +void +dummy_init(void) +{ + static int initialized = 0; + static void (*volatile call__ctors)(void) = __do_global_ctors_aux; + /* + * Call global constructors. + * Arrange to call global destructors at exit. + */ + /* prevent function pointer constant propagation */ + __asm__ __volatile__ (".section .init"); + + if (!initialized) { + initialized = 1; + (*call__ctors)(); + } + __asm__ __volatile__ (".section .trash"); + +}
\ No newline at end of file diff --git a/libc/sysdeps/linux/nios/fpu_control.h b/libc/sysdeps/linux/nios/fpu_control.h new file mode 100644 index 000000000..b7cdf2f3e --- /dev/null +++ b/libc/sysdeps/linux/nios/fpu_control.h @@ -0,0 +1,97 @@ +/* FPU control word bits. Nios2 version. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FPU_CONTROL_H +#define _FPU_CONTROL_H + +/* MIPS FPU floating point control register bits. + * + * 31-25 -> floating point conditions code bits 7-1. These bits are only + * available in MIPS IV. + * 24 -> flush denormalized results to zero instead of + * causing unimplemented operation exception. This bit is only + * available for MIPS III and newer. + * 23 -> Condition bit + * 22-18 -> reserved (read as 0, write with 0) + * 17 -> cause bit for unimplemented operation + * 16 -> cause bit for invalid exception + * 15 -> cause bit for division by zero exception + * 14 -> cause bit for overflow exception + * 13 -> cause bit for underflow exception + * 12 -> cause bit for inexact exception + * 11 -> enable exception for invalid exception + * 10 -> enable exception for division by zero exception + * 9 -> enable exception for overflow exception + * 8 -> enable exception for underflow exception + * 7 -> enable exception for inexact exception + * 6 -> flag invalid exception + * 5 -> flag division by zero exception + * 4 -> flag overflow exception + * 3 -> flag underflow exception + * 2 -> flag inexact exception + * 1-0 -> rounding control + * + * + * Rounding Control: + * 00 - rounding to nearest (RN) + * 01 - rounding toward zero (RZ) + * 10 - rounding (up) toward plus infinity (RP) + * 11 - rounding (down)toward minus infinity (RM) + */ + +#include <features.h> + +/* masking of interrupts */ +#define _FPU_MASK_V 0x0800 /* Invalid operation */ +#define _FPU_MASK_Z 0x0400 /* Division by zero */ +#define _FPU_MASK_O 0x0200 /* Overflow */ +#define _FPU_MASK_U 0x0100 /* Underflow */ +#define _FPU_MASK_I 0x0080 /* Inexact operation */ + +/* flush denormalized numbers to zero */ +#define _FPU_FLUSH_TZ 0x1000000 + +/* rounding control */ +#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ +#define _FPU_RC_ZERO 0x1 +#define _FPU_RC_UP 0x2 +#define _FPU_RC_DOWN 0x3 + +#define _FPU_RESERVED 0xfe3c0000 /* Reserved bits in cw */ + + +/* The fdlibm code requires strict IEEE double precision arithmetic, + and no interrupts for exceptions, rounding to nearest. */ + +#define _FPU_DEFAULT 0x00000000 + +/* IEEE: same as above, but exceptions */ +#define _FPU_IEEE 0x00000F80 + +/* Type of the control word. */ +typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__))); + +/* Macros for accessing the hardware control word. */ +#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw)) +#define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw)) + +/* Default control word set at startup. */ +extern fpu_control_t __fpu_control; + +#endif /* fpu_control.h */ diff --git a/libc/sysdeps/linux/nios/setjmp.S b/libc/sysdeps/linux/nios/setjmp.S new file mode 100644 index 000000000..70bd75c5d --- /dev/null +++ b/libc/sysdeps/linux/nios/setjmp.S @@ -0,0 +1,101 @@ +/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> +#include "NM_Macros.S" + +;---------------------------------------- +; Name: __sigsetjmp +; Description: Save the current context so +; a nr_longjmp works later. +; Input: %o0: jmp_buf: (ptr to) array to store context in +; Output: %o0 = 0 the first time we're called, or +; whatever longjmp returns later +; Side Effects: Uses %g0 +; CWP Depth: 0 +; + + .align 2 + .global _setjmp + +_setjmp: + br __sigsetjmp + movi %o1,0 ; (Delay slot) Set signal mask to zero + + .align 2 + .global setjmp + +setjmp: + MOVIP %o1,1 ; Set signal mask to 1 to save mask + + .align 2 + .global __sigsetjmp + +__sigsetjmp: + pfx jmpbuf_callersret ; present return address + st [%o0],%i7 + pfx jmpbuf_jmpret ; where the longjmp will later execute from + st [%o0],%o7 + pfx jmpbuf_sp ; Save stack pointer + st [%o0],%o6 + pfx jmpbuf_l0 ; Save local register l0 + st [%o0],%l0 + pfx jmpbuf_l1 ; Save local register l1 + st [%o0],%l1 + pfx jmpbuf_l2 ; Save local register l2 + st [%o0],%l2 + pfx jmpbuf_l3 ; Save local register l3 + st [%o0],%l3 + pfx jmpbuf_l4 ; Save local register l4 + st [%o0],%l4 + pfx jmpbuf_l5 ; Save local register l5 + st [%o0],%l5 + pfx jmpbuf_l6 ; Save local register l6 + st [%o0],%l6 + pfx jmpbuf_l7 ; Save local register l7 + st [%o0],%l7 + pfx jmpbuf_i0 ; Save input register i0 + st [%o0],%i0 + pfx jmpbuf_i1 ; Save input register i1 + st [%o0],%i1 + pfx jmpbuf_i2 ; Save input register i2 + st [%o0],%i2 + pfx jmpbuf_i3 ; Save input register i3 + st [%o0],%i3 + pfx jmpbuf_i4 ; Save input register i4 + st [%o0],%i4 + pfx jmpbuf_i5 ; Save input register i5 + st [%o0],%i5 + pfx %hi(__sigjmp_save@h) ; Load up %g0 with address + movi %g0,%lo(__sigjmp_save@h) + pfx %xhi(__sigjmp_save@h) + movhi %g0,%xlo(__sigjmp_save@h) + jmp %g0 + nop ; (delay slot) + + + + + + + + + + diff --git a/libc/sysdeps/linux/nios/sys/procfs.h b/libc/sysdeps/linux/nios/sys/procfs.h new file mode 100644 index 000000000..8cbaa41c5 --- /dev/null +++ b/libc/sysdeps/linux/nios/sys/procfs.h @@ -0,0 +1,123 @@ +/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_PROCFS_H +#define _SYS_PROCFS_H 1 + +/* This is somehow modelled after the file of the same name on SysVr4 + systems. It provides a definition of the core file format for ELF + used on Linux. */ + +#include <features.h> +#include <signal.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/ucontext.h> +#include <sys/user.h> +#include <bits/wordsize.h> + +__BEGIN_DECLS + +#define ELF_NGREG 38 + +typedef struct + { + union + { + unsigned long pr_regs[32]; + double pr_dregs[16]; + } pr_fr; + unsigned long __unused; + unsigned long pr_fsr; + unsigned char pr_qcnt; + unsigned char pr_q_entrysize; + unsigned char pr_en; + unsigned int pr_q[64]; + } elf_fpregset_t; + +typedef unsigned long elf_greg_t; +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +struct elf_siginfo + { + int si_signo; /* Signal number. */ + int si_code; /* Extra code. */ + int si_errno; /* Errno. */ + }; + +/* Definitions to generate Intel SVR4-like core files. These mostly + have the same names as the SVR4 types with "elf_" tacked on the + front to prevent clashes with linux definitions, and the typedef + forms have been avoided. This is mostly like the SVR4 structure, + but more Linuxy, with things that Linux does not support and which + gdb doesn't really use excluded. Fields present but not used are + marked with "XXX". */ +struct elf_prstatus + { + struct elf_siginfo pr_info; /* Info associated with signal. */ + short int pr_cursig; /* Current signal. */ + unsigned long int pr_sigpend; /* Set of pending signals. */ + unsigned long int pr_sighold; /* Set of held signals. */ + __pid_t pr_pid; + __pid_t pr_ppid; + __pid_t pr_pgrp; + __pid_t pr_sid; + struct timeval pr_utime; /* User time. */ + struct timeval pr_stime; /* System time. */ + struct timeval pr_cutime; /* Cumulative user time. */ + struct timeval pr_cstime; /* Cumulative system time. */ + elf_gregset_t pr_reg; /* GP registers. */ + int pr_fpvalid; /* True if math copro being used. */ + }; + + +#define ELF_PRARGSZ (80) /* Number of chars for args */ + +struct elf_prpsinfo + { + char pr_state; /* Numeric process state. */ + char pr_sname; /* Char for pr_state. */ + char pr_zomb; /* Zombie. */ + char pr_nice; /* Nice val. */ + unsigned long int pr_flag; /* Flags. */ + unsigned short int pr_uid; + unsigned short int pr_gid; + int pr_pid, pr_ppid, pr_pgrp, pr_sid; + /* Lots missing */ + char pr_fname[16]; /* Filename of executable. */ + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */ + }; + +/* Addresses. */ +typedef void *psaddr_t; + +/* Register sets. Linux has different names. */ +typedef elf_gregset_t prgregset_t; +typedef elf_fpregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __pid_t lwpid_t; + + +typedef struct elf_prstatus prstatus_t; +typedef struct elf_prpsinfo prpsinfo_t; + +__END_DECLS + +#endif /* sys/procfs.h */ diff --git a/libc/sysdeps/linux/nios/sys/ucontext.h b/libc/sysdeps/linux/nios/sys/ucontext.h new file mode 100644 index 000000000..1805b4eac --- /dev/null +++ b/libc/sysdeps/linux/nios/sys/ucontext.h @@ -0,0 +1,104 @@ +/* Copyright (C) 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +/* + * Location of the users' stored registers relative to R0. + * Usage is as an index into a gregset_t array or as u.u_ar0[XX]. + */ +#define REG_PSR (0) +#define REG_PC (1) +#define REG_SPARE (2) +#define REG_WVALID (3) +#define REG_G1 (4) +#define REG_G2 (5) +#define REG_G3 (6) +#define REG_G4 (7) +#define REG_G5 (8) +#define REG_G6 (9) +#define REG_G7 (10) +#define REG_O0 (11) +#define REG_O1 (12) +#define REG_O2 (13) +#define REG_O3 (14) +#define REG_O4 (15) +#define REG_O5 (16) +#define REG_O6 (17) +#define REG_O7 (18) +#define REG_GLOBALS (19) + +/* + * A gregset_t is defined as an array type for compatibility with the reference + * source. This is important due to differences in the way the C language + * treats arrays and structures as parameters. + * + * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)), + * but that the ABI defines it absolutely to be 21 (resp. 19). + */ + +#define NGREG 20 +typedef int greg_t; + +typedef greg_t gregset_t[NGREG]; + +/* + * The following structures define how a register window can appear on the + * stack. This structure is available (when required) through the `gwins' + * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the + * maximum number of outstanding register windows defined in the NIOS + * architecture (*not* implementation). + */ +#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */ +struct rwindow + { + greg_t rw_local[8]; /* locals */ + greg_t rw_in[8]; /* ins */ + }; + +#define rw_fp rw_in[6] /* frame pointer */ +#define rw_rtn rw_in[7] /* return address */ + +typedef struct gwindows + { + int wbcnt; + int *spbuf[NIOS_MAXREGWINDOW]; + struct rwindow wbuf[NIOS_MAXREGWINDOW]; + } gwindows_t; + +typedef struct + { + gregset_t gregs; /* general register set */ + gwindows_t *gwins; /* POSSIBLE pointer to register windows */ + } mcontext_t; + + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long uc_flags; + struct ucontext *uc_link; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/nios/vfork.S b/libc/sysdeps/linux/nios/vfork.S new file mode 100644 index 000000000..22b3c30cd --- /dev/null +++ b/libc/sysdeps/linux/nios/vfork.S @@ -0,0 +1,58 @@ +/* + * libc/sysdeps/linux/nios/vfork.S -- `vfork' syscall for linux/nios + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + */ +#include <asm/unistd.h> +#include "NM_Macros.S" + +#ifndef __NR_vfork +#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */ +#endif + + .text + .align 2 + .globl errno + .globl vfork + .globl __libc_vfork +#if defined __HAVE_ELF__ + .type vfork,@function + .type __libc_vfork,@function +#endif +vfork: +__libc_vfork: + MOVIP %g1, __NR_vfork + trap 63 + + bgen %g1, 12 + not %g1 /* (unsigned long) -4096 */ + cmp %o0, %g1 + skps cc_hi + jmp %o7 + nop + +fix_errno: + neg %o0 + save %sp, -16 + MOVIA %g1, __errno_location@h + call %g1 + nop + st [%o0], %i0 /* store errno */ + + xor %i0, %i0 + subi %i0, 1 /* retval=-1 */ + ret + restore + + + + + + + diff --git a/libc/sysdeps/linux/nios2/Makefile b/libc/sysdeps/linux/nios2/Makefile new file mode 100644 index 000000000..59b2a8152 --- /dev/null +++ b/libc/sysdeps/linux/nios2/Makefile @@ -0,0 +1,86 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +TOPDIR=../../../../ +include $(TOPDIR)Rules.mak +ASFLAGS=$(CFLAGS) + +CRT0_SRC = crt0.S +CRT0_OBJ = crt0.o crt1.o +CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o + +SSRC= __longjmp.S bsd-_setjmp.S bsd-setjmp.S setjmp.S vfork.S clone.S +SOBJS=$(patsubst %.S,%.o, $(SSRC)) + +CSRC= brk.c syscall.c +COBJS=$(patsubst %.c,%.o, $(CSRC)) + +OBJS=$(SOBJS) $(MOBJ) $(COBJS) + +all: $(OBJS) $(LIBC) + +$(LIBC): ar-target + +ar-target: $(OBJS) $(CRT0_OBJ) $(CTOR_TARGETS) + $(AR) $(ARFLAGS) $(LIBC) $(OBJS) + cp $(CRT0_OBJ) $(TOPDIR)lib/ + +$(CRT0_OBJ): $(CRT0_SRC) + $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(SOBJS): %.o : %.S + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +$(COBJS): %.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y) +crti.o: crti.S + $(CC) $(CFLAGS) -c crti.S -o crti.o + +$(TOPDIR)lib/crti.o: crti.o + $(INSTALL) -d $(TOPDIR)lib/ + cp crti.o $(TOPDIR)lib/ + +crtn.o: crtn.S + $(CC) $(CFLAGS) -c crtn.S -o crtn.o + +$(TOPDIR)lib/crtn.o: crtn.o + $(INSTALL) -d $(TOPDIR)lib/ + cp crtn.o $(TOPDIR)lib/ +else +$(TOPDIR)lib/crti.o: + $(INSTALL) -d $(TOPDIR)lib/ + $(AR) $(ARFLAGS) $(TOPDIR)lib/crti.o +$(TOPDIR)lib/crtn.o: + $(INSTALL) -d $(TOPDIR)lib/ + $(AR) $(ARFLAGS) $(TOPDIR)lib/crtn.o +endif + + +headers: + $(LN) -fs ../libc/sysdeps/linux/nios2/fpu_control.h $(TOPDIR)/include/ + +clean: + $(RM) *.[oa] *~ core + $(RM) bits/sysnum.h + $(RM) $(TOPDIR)/include/fpu_control.h + diff --git a/libc/sysdeps/linux/nios2/__longjmp.S b/libc/sysdeps/linux/nios2/__longjmp.S new file mode 100644 index 000000000..d15f040cd --- /dev/null +++ b/libc/sysdeps/linux/nios2/__longjmp.S @@ -0,0 +1,48 @@ +/* + * libc/sysdeps/linux/nios2/__longjmp.S + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + +.globl __longjmp +.type __longjmp,@function +.balign 4 + +__longjmp: + /* return value is in r5*/ + mov r2, r5 + + /* jmp_buf in r4, restore regs. */ + ldw r16, (JB_REGS+ 0)(r4) + ldw r17, (JB_REGS+ 4)(r4) + ldw r18, (JB_REGS+ 8)(r4) + ldw r19, (JB_REGS+12)(r4) + ldw r20, (JB_REGS+16)(r4) + ldw r21, (JB_REGS+20)(r4) + ldw r22, (JB_REGS+24)(r4) + ldw r23, (JB_REGS+28)(r4) + + ldw ra, JB_PC(r4) + ldw fp, JB_FP(r4) + ldw gp, JB_GP(r4) + ldw sp, JB_SP(r4) + +#if defined(__HAVE_FPU__) + RESTORE_FPU r4 JB_FPREGS +#endif + + /* return to saved RA */ + ret + + diff --git a/libc/sysdeps/linux/nios2/bits/endian.h b/libc/sysdeps/linux/nios2/bits/endian.h new file mode 100644 index 000000000..54bd9d14b --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/endian.h @@ -0,0 +1,7 @@ +/* i386 is little-endian. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#define __BYTE_ORDER __LITTLE_ENDIAN diff --git a/libc/sysdeps/linux/nios2/bits/fcntl.h b/libc/sysdeps/linux/nios2/bits/fcntl.h new file mode 100644 index 000000000..4b41b4715 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/fcntl.h @@ -0,0 +1,180 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + + +#include <sys/types.h> + +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#define O_CREAT 0100 /* not fcntl */ +#define O_EXCL 0200 /* not fcntl */ +#define O_NOCTTY 0400 /* not fcntl */ +#define O_TRUNC 01000 /* not fcntl */ +#define O_APPEND 02000 +#define O_NONBLOCK 04000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 010000 +#define O_FSYNC O_SYNC +#define O_ASYNC 020000 + +#ifdef __USE_GNU +# define O_DIRECTORY 040000 /* Must be a directory. */ +# define O_NOFOLLOW 0100000 /* Do not follow links. */ +# define O_DIRECT 0200000 /* Direct disk access. */ +# define O_STREAMING 04000000/* streaming access */ +#endif + +/* For now Linux has synchronisity options for data and read operations. + We define the symbols here but let them do the same as O_SYNC since + this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC O_SYNC /* Synchronize data. */ +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0400000 +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 /* Get record locking info. */ +# define F_SETLK 6 /* Set record locking info (non-blocking). */ +# define F_SETLKW 7 /* Set record locking info (blocking). */ +#else +# define F_GETLK F_GETLK64 /* Get record locking info. */ +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ +#endif +#define F_GETLK64 12 /* Get record locking info. */ +#define F_SETLK64 13 /* Set record locking info (non-blocking). */ +#define F_SETLKW64 14 /* Set record locking info (blocking). */ + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* Set number of signal to be sent. */ +# define F_GETSIG 11 /* Get number of signal to be sent. */ +#endif + +#ifdef __USE_GNU +# define F_SETLEASE 1024 /* Set a lease. */ +# define F_GETLEASE 1025 /* Enquire what lease is active. */ +# define F_NOTIFY 1026 /* Request notfications on a directory. */ +#endif + +/* For F_[GET|SET]FL. */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +#define F_RDLCK 0 /* Read lock. */ +#define F_WRLCK 1 /* Write lock. */ +#define F_UNLCK 2 /* Remove lock. */ + +/* For old implementation of bsd flock(). */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +#ifdef __USE_BSD +/* Operations for bsd flock(), also used by the kernel implementation. */ +# define LOCK_SH 1 /* shared lock */ +# define LOCK_EX 2 /* exclusive lock */ +# define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +# define LOCK_UN 8 /* remove lock */ +#endif + +#ifdef __USE_GNU +# define LOCK_MAND 32 /* This is a mandatory flock: */ +# define LOCK_READ 64 /* ... which allows concurrent read operations. */ +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */ +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */ +#endif + +#ifdef __USE_GNU +/* Types of directory notifications that may be requested with F_NOTIFY. */ +# define DN_ACCESS 0x00000001 /* File accessed. */ +# define DN_MODIFY 0x00000002 /* File modified. */ +# define DN_CREATE 0x00000004 /* File created. */ +# define DN_DELETE 0x00000008 /* File removed. */ +# define DN_RENAME 0x00000010 /* File renamed. */ +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */ +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ +#endif + +struct flock + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ +#else + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ +#endif + __pid_t l_pid; /* Process holding the lock. */ + }; + +#ifdef __USE_LARGEFILE64 +struct flock64 + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ + }; +#endif + +/* Define some more compatibility macros to be backward compatible with + BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/libc/sysdeps/linux/nios2/bits/kernel_stat.h b/libc/sysdeps/linux/nios2/bits/kernel_stat.h new file mode 100644 index 000000000..bfef64cea --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/kernel_stat.h @@ -0,0 +1,56 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +/* This file provides whatever this particular arch's kernel thinks + * struct kernel_stat should look like... It turns out each arch has a + * different opinion on the subject... */ + +struct kernel_stat { + unsigned short st_dev; + unsigned short __pad1; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned short __pad2; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long __unused1; + unsigned long st_mtime; + unsigned long __unused2; + unsigned long st_ctime; + unsigned long __unused3; + unsigned long __unused4; + unsigned long __unused5; +}; + +struct kernel_stat64 { + unsigned short st_dev; + unsigned char __pad0[10]; +#define _HAVE_STAT64___ST_INO + unsigned long __st_ino; + unsigned int st_mode; + unsigned int st_nlink; + unsigned long st_uid; + unsigned long st_gid; + unsigned short st_rdev; + unsigned char __pad3[10]; + long long st_size; + unsigned long st_blksize; + unsigned long st_blocks; /* Number 512-byte blocks allocated. */ + unsigned long __pad4; /* future possible st_blocks high bits */ + unsigned long st_atime; + unsigned long __pad5; + unsigned long st_mtime; + unsigned long __pad6; + unsigned long st_ctime; + unsigned long __pad7; /* will be high 32 bits of ctime someday */ + unsigned long long st_ino; +}; + +#endif /* _BITS_STAT_STRUCT_H */ + diff --git a/libc/sysdeps/linux/nios2/bits/kernel_types.h b/libc/sysdeps/linux/nios2/bits/kernel_types.h new file mode 100644 index 000000000..1fd1c4aaa --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/kernel_types.h @@ -0,0 +1,44 @@ +/* Note that we use the exact same include guard #define names + * as asm/posix_types.h. This will avoid gratuitous conflicts + * with the posix_types.h kernel header, and will ensure that + * our private content, and not the kernel header, will win. + * -Erik + */ +#ifndef __ARCH_NIOS2_POSIX_TYPES_H +#define __ARCH_NIOS2_POSIX_TYPES_H + +typedef unsigned long __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef unsigned short __kernel_old_dev_t; +typedef long long __kernel_loff_t; + +typedef struct { +#ifdef __USE_ALL + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ARCH_NIOS2_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/nios2/bits/mathdef.h b/libc/sysdeps/linux/nios2/bits/mathdef.h new file mode 100644 index 000000000..44d7f0dde --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/mathdef.h @@ -0,0 +1,48 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#if !defined _MATH_H && !defined _COMPLEX_H +# error "Never use <bits/mathdef.h> directly; include <math.h> instead" +#endif + +#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF +# define _MATH_H_MATHDEF 1 + +/* GCC does not promote `float' values to `double'. */ +typedef float float_t; /* `float' expressions are evaluated as + `float'. */ +typedef double double_t; /* `double' expressions are evaluated as + `double'. */ + +/* Define `INFINITY' as value of type `float'. */ +# define INFINITY HUGE_VALF + + +/* The values returned by `ilogb' for 0 and NaN respectively. */ +# define FP_ILOGB0 (-2147483647) +# define FP_ILOGBNAN (2147483647) + +#endif /* ISO C99 */ + +#ifndef __NO_LONG_DOUBLE_MATH +/* Signal that we do not really have a `long double'. This disables the + declaration of all the `long double' function variants. */ +/* XXX The FPA does support this but the patterns in GCC are currently + turned off. */ +# define __NO_LONG_DOUBLE_MATH 1 +#endif diff --git a/libc/sysdeps/linux/nios2/bits/mman.h b/libc/sysdeps/linux/nios2/bits/mman.h new file mode 100644 index 000000000..34f14ee5b --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/mman.h @@ -0,0 +1,75 @@ +/* Definitions for POSIX memory map interface. Linux/m68k version. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +#endif diff --git a/libc/sysdeps/linux/nios2/bits/profil-counter.h b/libc/sysdeps/linux/nios2/bits/profil-counter.h new file mode 100644 index 000000000..3aa3fc0ad --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/profil-counter.h @@ -0,0 +1,26 @@ +/* Low-level statistical profiling support function. Linux/SPARC version. + Copyright (C) 1997, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <signal.h> + +void +profil_counter (int signo, struct sigcontext *si) +{ + profil_count ((void *) si->regs.ea); +} diff --git a/libc/sysdeps/linux/nios2/bits/resource.h b/libc/sysdeps/linux/nios2/bits/resource.h new file mode 100644 index 000000000..06ecca45a --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/resource.h @@ -0,0 +1,209 @@ +/* Bit values & structures for resource limits. Linux/x86 version. + Copyright (C) 1994,1996,1997,1998,1999,2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_RESOURCE_H +# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." +#endif + +#include <bits/types.h> + +/* Transmute defines to enumerations. The macro re-definitions are + necessary because some programs want to test for operating system + features with #ifdef RUSAGE_SELF. In ISO C the reflexive + definition is a no-op. */ + +/* Kinds of resource limit. */ +enum __rlimit_resource +{ + /* Per-process CPU limit, in seconds. */ + RLIMIT_CPU = 0, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + RLIMIT_FSIZE = 1, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + RLIMIT_DATA = 2, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + RLIMIT_STACK = 3, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + RLIMIT_CORE = 4, +#define RLIMIT_CORE RLIMIT_CORE + + /* Largest resident set size, in bytes. + This affects swapping; processes that are exceeding their + resident set size will be more likely to have physical memory + taken from them. */ + RLIMIT_RSS = 5, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + RLIMIT_NOFILE = 7, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit. */ + RLIMIT_AS = 9, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + RLIMIT_NPROC = 6, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + RLIMIT_MEMLOCK = 8, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + /* Maximum number of file locks. */ + RLIMIT_LOCKS = 10, +#define RLIMIT_LOCKS RLIMIT_LOCKS + + RLIMIT_NLIMITS = 11, + RLIM_NLIMITS = RLIMIT_NLIMITS +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS +}; + +/* Value to indicate that there is no limit. */ +#ifndef __USE_FILE_OFFSET64 +# define RLIM_INFINITY ((unsigned long int)(~0UL)) +#else +# define RLIM_INFINITY 0xffffffffffffffffuLL +#endif + +#ifdef __USE_LARGEFILE64 +# define RLIM64_INFINITY 0xffffffffffffffffuLL +#endif + +/* We can represent all limits. */ +#define RLIM_SAVED_MAX RLIM_INFINITY +#define RLIM_SAVED_CUR RLIM_INFINITY + + +/* Type for resource quantity measurement. */ +#ifndef __USE_FILE_OFFSET64 +typedef __rlim_t rlim_t; +#else +typedef __rlim64_t rlim_t; +#endif +#ifdef __USE_LARGEFILE64 +typedef __rlim64_t rlim64_t; +#endif + +struct rlimit + { + /* The current (soft) limit. */ + rlim_t rlim_cur; + /* The hard limit. */ + rlim_t rlim_max; + }; + +#ifdef __USE_LARGEFILE64 +struct rlimit64 + { + /* The current (soft) limit. */ + rlim64_t rlim_cur; + /* The hard limit. */ + rlim64_t rlim_max; + }; +#endif + +/* Whose usage statistics do you want? */ +enum __rusage_who +{ + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1, +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#define __need_timeval +#include <bits/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +struct rusage + { + /* Total amount of user time used. */ + struct timeval ru_utime; + /* Total amount of system time used. */ + struct timeval ru_stime; + /* Maximum resident set size (in kilobytes). */ + long int ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long int ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long int ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long int ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long int ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long int ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long int ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long int ru_inblock; + /* Number of output operations via the file system. */ + long int ru_oublock; + /* Number of IPC messages sent. */ + long int ru_msgsnd; + /* Number of IPC messages received. */ + long int ru_msgrcv; + /* Number of signals delivered. */ + long int ru_nsignals; + /* Number of voluntary context switches, i.e. because the process + gave up the process before it had to (usually to wait for some + resource to be available). */ + long int ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long int ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which +{ + PRIO_PROCESS = 0, /* WHO is a process ID. */ +#define PRIO_PROCESS PRIO_PROCESS + PRIO_PGRP = 1, /* WHO is a process group ID. */ +#define PRIO_PGRP PRIO_PGRP + PRIO_USER = 2 /* WHO is a user ID. */ +#define PRIO_USER PRIO_USER +}; diff --git a/libc/sysdeps/linux/nios2/bits/setjmp.h b/libc/sysdeps/linux/nios2/bits/setjmp.h new file mode 100644 index 000000000..ea7699d09 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/setjmp.h @@ -0,0 +1,67 @@ +/* Define the machine-dependent type `jmp_buf'. Nios2 version. + Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct +{ + /* Callee-saved registers r16 through r23. */ + unsigned long __regs[8]; + + /* Program counter. */ + unsigned long __pc; + + /* Stack pointer. */ + unsigned long __sp; + + /* The frame pointer. */ + unsigned long __fp; + + /* The global pointer. */ + unsigned long __gp; + + /* floating point regs, if any */ +#if defined __HAVE_FPU__ + unsigned long __fpregs[64]; +#endif +} __jmp_buf[1]; + +#endif + +#define JB_REGS 0 +#define JB_PC 32 +#define JB_SP 36 +#define JB_FP 40 +#define JB_GP 44 +#define JB_FPREGS 48 + +#if defined __HAVE_FPU__ +# define JB_SIZE 304 +#else +# define JB_SIZE 48 +#endif + + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void*)(jmpbuf)->__sp) diff --git a/libc/sysdeps/linux/nios2/bits/sigcontextinfo.h b/libc/sysdeps/linux/nios2/bits/sigcontextinfo.h new file mode 100644 index 000000000..d6383b970 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/sigcontextinfo.h @@ -0,0 +1,26 @@ +/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>, 1998. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define SIGCONTEXT struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS +#define GET_PC(ctx) ((void *) (ctx)->regs.ea) +#define GET_FRAME(ctx) ((void *) (ctx)->regs.sp) +#define GET_STACK(ctx) ((void *) (ctx)->regs.fp) +#define CALL_SIGHANDLER(handler, signo, ctx) \ + (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx)) diff --git a/libc/sysdeps/linux/nios2/bits/stackinfo.h b/libc/sysdeps/linux/nios2/bits/stackinfo.h new file mode 100644 index 000000000..e7fbf5633 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/stackinfo.h @@ -0,0 +1,28 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* This file contains a bit of information about the stack allocation + of the processor. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On nios II the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/nios2/bits/stat.h b/libc/sysdeps/linux/nios2/bits/stat.h new file mode 100644 index 000000000..f446a91db --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/stat.h @@ -0,0 +1,134 @@ +/* Copyright (C) 1992,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_STAT_H +# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." +#endif + +/* Versions of the `struct stat' data structure. */ +#define _STAT_VER_LINUX_OLD 1 +#define _STAT_VER_KERNEL 1 +#define _STAT_VER_SVR4 2 +#define _STAT_VER_LINUX 3 +#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */ + +/* Versions of the `xmknod' interface. */ +#define _MKNOD_VER_LINUX 1 +#define _MKNOD_VER_SVR4 2 +#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */ + + +struct stat + { + __dev_t st_dev; /* Device. */ + unsigned short int __pad1; +#ifndef __USE_FILE_OFFSET64 + __ino_t st_ino; /* File serial number. */ +#else + __ino_t __st_ino; /* 32bit file serial number. */ +#endif + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; +#ifndef __USE_FILE_OFFSET64 + __off_t st_size; /* Size of file, in bytes. */ +#else + __off64_t st_size; /* Size of file, in bytes. */ +#endif + __blksize_t st_blksize; /* Optimal block size for I/O. */ + +#ifndef __USE_FILE_OFFSET64 + __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */ +#else + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#endif + __time_t st_atime; /* Time of last access. */ + unsigned long int __unused1; + __time_t st_mtime; /* Time of last modification. */ + unsigned long int __unused2; + __time_t st_ctime; /* Time of last status change. */ + unsigned long int __unused3; +#ifndef __USE_FILE_OFFSET64 + unsigned long int __unused4; + unsigned long int __unused5; +#else + __ino64_t st_ino; /* File serial number. */ +#endif + }; + +#ifdef __USE_LARGEFILE64 +struct stat64 + { + __dev_t st_dev; /* Device. */ + unsigned int __pad1; + + __ino_t __st_ino; /* 32bit file serial number. */ + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned int __pad2; + __off64_t st_size; /* Size of file, in bytes. */ + __blksize_t st_blksize; /* Optimal block size for I/O. */ + + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ + __time_t st_atime; /* Time of last access. */ + unsigned long int __unused1; + __time_t st_mtime; /* Time of last modification. */ + unsigned long int __unused2; + __time_t st_ctime; /* Time of last status change. */ + unsigned long int __unused3; + __ino64_t st_ino; /* File serial number. */ + }; +#endif + +/* Tell code we have these members. */ +#define _STATBUF_ST_BLKSIZE +#define _STATBUF_ST_RDEV + +/* Encoding of the file mode. */ + +#define __S_IFMT 0170000 /* These bits determine file type. */ + +/* File types. */ +#define __S_IFDIR 0040000 /* Directory. */ +#define __S_IFCHR 0020000 /* Character device. */ +#define __S_IFBLK 0060000 /* Block device. */ +#define __S_IFREG 0100000 /* Regular file. */ +#define __S_IFIFO 0010000 /* FIFO. */ +#define __S_IFLNK 0120000 /* Symbolic link. */ +#define __S_IFSOCK 0140000 /* Socket. */ + +/* POSIX.1b objects. Note that these macros always evaluate to zero. But + they do it by enforcing the correct use of the macros. */ +#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) + +/* Protection bits. */ + +#define __S_ISUID 04000 /* Set user ID on execution. */ +#define __S_ISGID 02000 /* Set group ID on execution. */ +#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ +#define __S_IREAD 0400 /* Read by owner. */ +#define __S_IWRITE 0200 /* Write by owner. */ +#define __S_IEXEC 0100 /* Execute by owner. */ diff --git a/libc/sysdeps/linux/nios2/bits/syscalls.h b/libc/sysdeps/linux/nios2/bits/syscalls.h new file mode 100644 index 000000000..62541b873 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/syscalls.h @@ -0,0 +1,19 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +#include <features.h> + +/* Do something very evil for now. Until we create our own syscall + * macros, short circuit bits/sysnum.h and use asm/unistd.h instead */ +#include <asm/unistd.h> + +/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel + * header files. It also defines the traditional `SYS_<name>' macros for older + * programs. */ +#include <bits/sysnum.h> + +#endif /* _BITS_SYSCALLS_H */ + diff --git a/libc/sysdeps/linux/nios2/bits/wordsize.h b/libc/sysdeps/linux/nios2/bits/wordsize.h new file mode 100644 index 000000000..ba643b60a --- /dev/null +++ b/libc/sysdeps/linux/nios2/bits/wordsize.h @@ -0,0 +1,19 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/nios2/brk.c b/libc/sysdeps/linux/nios2/brk.c new file mode 100644 index 000000000..3b81e7018 --- /dev/null +++ b/libc/sysdeps/linux/nios2/brk.c @@ -0,0 +1,46 @@ +/* brk system call for Linux/Nios2. + Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <unistd.h> +#include <sys/syscall.h> +#include <errno.h> + + +/* This must be initialized data because commons can't have aliases. */ +void *___brk_addr = 0; + + +int brk (void *addr) +{ + void *newbrk; + register int r2 asm("r2") = TRAP_ID_SYSCALL; + register int r3 asm("r3") = __NR_brk; + register void *r4 asm("r4") = addr; + + asm volatile ("trap\n\t" : "=r"(newbrk) : "0"(r2), "r"(r3), "r"(r4)); + + ___brk_addr = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} diff --git a/libc/sysdeps/linux/nios2/bsd-_setjmp.S b/libc/sysdeps/linux/nios2/bsd-_setjmp.S new file mode 100644 index 000000000..ed4061cd4 --- /dev/null +++ b/libc/sysdeps/linux/nios2/bsd-_setjmp.S @@ -0,0 +1,45 @@ +/* + * libc/sysdeps/linux/nios2/bsd-_setjmp.S + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + .globl _setjmp + .type _setjmp,@function + .balign 4 + +_setjmp: + stw r16, (JB_REGS+ 0)(r4) + stw r17, (JB_REGS+ 4)(r4) + stw r18, (JB_REGS+ 8)(r4) + stw r19, (JB_REGS+12)(r4) + stw r20, (JB_REGS+16)(r4) + stw r21, (JB_REGS+20)(r4) + stw r22, (JB_REGS+24)(r4) + stw r23, (JB_REGS+28)(r4) + + stw ra, JB_PC(r4) + stw sp, JB_SP(r4) + stw fp, JB_FP(r4) + stw gp, JB_GP(r4) + +#if defined(__HAVE_FPU__) + SAVE_FPU r4 JB_FPREGS +#endif + stw r0, JB_SIZE(r4) /* signal mask is not saved */ + mov r2, zero + ret + + + diff --git a/libc/sysdeps/linux/nios2/bsd-setjmp.S b/libc/sysdeps/linux/nios2/bsd-setjmp.S new file mode 100644 index 000000000..ac99bfe0a --- /dev/null +++ b/libc/sysdeps/linux/nios2/bsd-setjmp.S @@ -0,0 +1,52 @@ +/* + * libc/sysdeps/linux/nios2/bsd-setjmp.S + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + .globl setjmp + .type setjmp,@function + .balign 4 + +setjmp: + stw r16, (JB_REGS+ 0)(r4) + stw r17, (JB_REGS+ 4)(r4) + stw r18, (JB_REGS+ 8)(r4) + stw r19, (JB_REGS+12)(r4) + stw r20, (JB_REGS+16)(r4) + stw r21, (JB_REGS+20)(r4) + stw r22, (JB_REGS+24)(r4) + stw r23, (JB_REGS+28)(r4) + + stw ra, JB_PC(r4) + stw sp, JB_SP(r4) + stw fp, JB_FP(r4) + stw gp, JB_GP(r4) + +#if defined(__HAVE_FPU__) + SAVE_FPU r4 JB_FPREGS +#endif + + movui r5, 1 +#ifdef __PIC__ + /* just pray 16 bit offset is enough */ + br __sigjmp_save +#else + movhi r8, %hi(__sigjmp_save) + ori r8, r8, %lo(__sigjmp_save) + jmp r8 +#endif + + diff --git a/libc/sysdeps/linux/nios2/clone.S b/libc/sysdeps/linux/nios2/clone.S new file mode 100644 index 000000000..4dd8745cd --- /dev/null +++ b/libc/sysdeps/linux/nios2/clone.S @@ -0,0 +1,66 @@ +/* + * libc/sysdeps/linux/nios2/clone.S -- `clone' syscall for linux/nios2 + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + */ +#include <asm/errno.h> +#include <asm/unistd.h> + +/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ + +.text +.balign 4 +.type clone,@function +.globl clone; +clone: +.type __clone,@function +.globl __clone; +__clone: + addi sp,sp,-8 + mov r8,r4 + stw ra,4(sp) + stw r16,0(sp) + + mov r4,r6 + movi r2,-EINVAL + + /* sanity check */ + beq r8,zero,CLONE_ERROR_LABEL + beq r5,zero,CLONE_ERROR_LABEL + + /* system call */ + movi r2,TRAP_ID_SYSCALL + movi r3,__NR_clone + trap + + /* child call the function */ + mov r4,r7 + bne r2,zero,CLONE_ERROR_LABEL + callr r8 + + /* exit if it returns */ + mov r4,r2 + movi r3,__NR_exit + trap + +CLONE_ERROR_LABEL: + movi r3,-4096 + sub r16,zero,r2 + bgeu r3,r2,CLONE_OK + + /* store errno */ + call __errno_location + stw r16,0(r2) + movi r2,-1 + +CLONE_OK: + ldw ra,4(sp) + ldw r16,0(sp) + addi sp,sp,8 + ret diff --git a/libc/sysdeps/linux/nios2/clone.c b/libc/sysdeps/linux/nios2/clone.c new file mode 100644 index 000000000..0555658b4 --- /dev/null +++ b/libc/sysdeps/linux/nios2/clone.c @@ -0,0 +1,49 @@ +/* + * libc/sysdeps/linux/nios2/clone.c -- `clone' syscall for linux/nios2 + * + * Copyright (C) 2004,05 Microtronix Datacom Ltd + * Copyright (C) 2002,03 NEC Electronics Corporation + * Copyright (C) 2002,03 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + * Nios2 port by Wentao Xu + */ + +#include <errno.h> +#include <sys/syscall.h> + +int clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg) +{ + register unsigned long rval asm ("r2") = -EINVAL; + + if (fn && child_stack) { + register unsigned long syscall asm ("r3"); + register unsigned long arg0 asm ("r4"); + register unsigned long arg1 asm ("r5"); + + /* Clone this thread. */ + rval = TRAP_ID_SYSCALL; + syscall = __NR_clone; + arg0 = flags; + arg1 = (unsigned long)child_stack; + asm volatile ("trap " + : "=r" (rval), "=r" (syscall) + : "0" (rval),"1" (syscall), "r" (arg0), "r" (arg1) + ); + + if (rval == 0) { + /* In child thread, call fn and exit. */ + arg0 = (*fn) (arg); + syscall = __NR_exit; + asm volatile ("trap " + : "=r" (rval), "=r" (syscall) + : "1" (syscall), "r" (arg0)); + } + } + + __syscall_return (int, rval); +} diff --git a/libc/sysdeps/linux/nios2/crt0.S b/libc/sysdeps/linux/nios2/crt0.S new file mode 100644 index 000000000..95c9450cd --- /dev/null +++ b/libc/sysdeps/linux/nios2/crt0.S @@ -0,0 +1,64 @@ +/* + * libc/sysdeps/linux/nios2/crt0.S -- entry point for linux/nios2 + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + +#include <features.h> +#include <asm/unistd.h> + + .global _start + .type __start,@function + .weak _init + .weak _fini + .type __uClibc_start_main,@function + .type __h_errno_location, @function + .type _stdio_init, @function + .type _stdio_term, @function + .text + .balign 4 +_start: + nop + br 0f + .long _stext /* start address of .text + 4 */ + .long _etext /* start address of .data */ + .long _edata /* start address of .bss */ +0: + /* load gp */ + movhi gp, %hiadj(_gp) + addi gp, gp, %lo(_gp) + + /* load argc, argv, envp from stack */ + ldw r4, 0(sp) + ldw r5, 4(sp) + ldw r6, 8(sp) + + /* load the 4th arg */ + movhi r7, %hi(_init) + ori r7, r7, %lo(_init) + + /* reuse the argc stack slot for the 5th arg */ + movhi r8, %hi(_fini) + ori r8, r8, %lo(_fini) + stw r8, 0(sp) + + /* call uClibc_main, shouldn't return */ +#ifdef __PIC__ + /* just pray 16 bit offset is enough */ + br __uClibc_start_main +#else + call __uClibc_start_main +#endif + + /* crash in the event of return */ +__exit: + movui r2, TRAP_ID_SYSCALL + movui r3, __NR_exit + trap
\ No newline at end of file diff --git a/libc/sysdeps/linux/nios2/crti.S b/libc/sysdeps/linux/nios2/crti.S new file mode 100644 index 000000000..7867c21c0 --- /dev/null +++ b/libc/sysdeps/linux/nios2/crti.S @@ -0,0 +1,31 @@ + .file "initfini.c" +#APP + + .section .init +#NO_APP + .balign 4 + .global __init + .type __init, @function +__init: + addi sp, sp, -8 + stw ra, 0(sp) + stw fp, 4(sp) +#APP + + .balign 4 + + + .section .fini +#NO_APP + .balign 4 + .global __fini + .type __fini, @function +__fini: + addi sp, sp, -8 + stw ra, 0(sp) + stw fp, 4(sp) +#APP + .balign 4 + + + .ident "GCC: (GNU) 3.3.2" diff --git a/libc/sysdeps/linux/nios2/crtn.S b/libc/sysdeps/linux/nios2/crtn.S new file mode 100644 index 000000000..dfac2ab22 --- /dev/null +++ b/libc/sysdeps/linux/nios2/crtn.S @@ -0,0 +1,30 @@ + .file "initfini.c" +#APP + + .section .init +#NO_APP + .balign 4 + .globl _init + .type _init, @function +#NO_APP + ldw ra, 0(sp) + ldw fp, 4(sp) + addi sp, sp, 8 + ret + .size _init, .-_init +#APP + + .section .fini +#NO_APP + .balign 4 + .globl _fini + .type _fini, @function +#NO_APP + ldw ra, 0(sp) + ldw fp, 4(sp) + addi sp, sp, 8 + ret + .size _fini, .-_fini +#APP + + .ident "GCC: (GNU) 3.3.2" diff --git a/libc/sysdeps/linux/nios2/fpu_control.h b/libc/sysdeps/linux/nios2/fpu_control.h new file mode 100644 index 000000000..b7cdf2f3e --- /dev/null +++ b/libc/sysdeps/linux/nios2/fpu_control.h @@ -0,0 +1,97 @@ +/* FPU control word bits. Nios2 version. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FPU_CONTROL_H +#define _FPU_CONTROL_H + +/* MIPS FPU floating point control register bits. + * + * 31-25 -> floating point conditions code bits 7-1. These bits are only + * available in MIPS IV. + * 24 -> flush denormalized results to zero instead of + * causing unimplemented operation exception. This bit is only + * available for MIPS III and newer. + * 23 -> Condition bit + * 22-18 -> reserved (read as 0, write with 0) + * 17 -> cause bit for unimplemented operation + * 16 -> cause bit for invalid exception + * 15 -> cause bit for division by zero exception + * 14 -> cause bit for overflow exception + * 13 -> cause bit for underflow exception + * 12 -> cause bit for inexact exception + * 11 -> enable exception for invalid exception + * 10 -> enable exception for division by zero exception + * 9 -> enable exception for overflow exception + * 8 -> enable exception for underflow exception + * 7 -> enable exception for inexact exception + * 6 -> flag invalid exception + * 5 -> flag division by zero exception + * 4 -> flag overflow exception + * 3 -> flag underflow exception + * 2 -> flag inexact exception + * 1-0 -> rounding control + * + * + * Rounding Control: + * 00 - rounding to nearest (RN) + * 01 - rounding toward zero (RZ) + * 10 - rounding (up) toward plus infinity (RP) + * 11 - rounding (down)toward minus infinity (RM) + */ + +#include <features.h> + +/* masking of interrupts */ +#define _FPU_MASK_V 0x0800 /* Invalid operation */ +#define _FPU_MASK_Z 0x0400 /* Division by zero */ +#define _FPU_MASK_O 0x0200 /* Overflow */ +#define _FPU_MASK_U 0x0100 /* Underflow */ +#define _FPU_MASK_I 0x0080 /* Inexact operation */ + +/* flush denormalized numbers to zero */ +#define _FPU_FLUSH_TZ 0x1000000 + +/* rounding control */ +#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ +#define _FPU_RC_ZERO 0x1 +#define _FPU_RC_UP 0x2 +#define _FPU_RC_DOWN 0x3 + +#define _FPU_RESERVED 0xfe3c0000 /* Reserved bits in cw */ + + +/* The fdlibm code requires strict IEEE double precision arithmetic, + and no interrupts for exceptions, rounding to nearest. */ + +#define _FPU_DEFAULT 0x00000000 + +/* IEEE: same as above, but exceptions */ +#define _FPU_IEEE 0x00000F80 + +/* Type of the control word. */ +typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__))); + +/* Macros for accessing the hardware control word. */ +#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw)) +#define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw)) + +/* Default control word set at startup. */ +extern fpu_control_t __fpu_control; + +#endif /* fpu_control.h */ diff --git a/libc/sysdeps/linux/nios2/setjmp.S b/libc/sysdeps/linux/nios2/setjmp.S new file mode 100644 index 000000000..b2ff52162 --- /dev/null +++ b/libc/sysdeps/linux/nios2/setjmp.S @@ -0,0 +1,51 @@ +/* + * libc/sysdeps/linux/nios2/setjmp.S + * + * Copyright (C) 2004,05,06 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + * + */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + +.globl __sigsetjmp +.type __sigsetjmp,@function +.balign 4 + +__sigsetjmp: + stw r16, (JB_REGS+ 0)(r4) + stw r17, (JB_REGS+ 4)(r4) + stw r18, (JB_REGS+ 8)(r4) + stw r19, (JB_REGS+12)(r4) + stw r20, (JB_REGS+16)(r4) + stw r21, (JB_REGS+20)(r4) + stw r22, (JB_REGS+24)(r4) + stw r23, (JB_REGS+28)(r4) + + stw ra, JB_PC(r4) + stw sp, JB_SP(r4) + stw fp, JB_FP(r4) + stw gp, JB_GP(r4) + +#if defined(__HAVE_FPU__) + SAVE_FPU r4 JB_FPREGS +#endif + +#ifdef __PIC__ + /* just pray 16 bit offset is enough */ + br __sigjmp_save +#else + movhi r8, %hi(__sigjmp_save) + ori r8, r8, %lo(__sigjmp_save) + jmp r8 +#endif + + + diff --git a/libc/sysdeps/linux/nios2/sys/procfs.h b/libc/sysdeps/linux/nios2/sys/procfs.h new file mode 100644 index 000000000..8cbaa41c5 --- /dev/null +++ b/libc/sysdeps/linux/nios2/sys/procfs.h @@ -0,0 +1,123 @@ +/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_PROCFS_H +#define _SYS_PROCFS_H 1 + +/* This is somehow modelled after the file of the same name on SysVr4 + systems. It provides a definition of the core file format for ELF + used on Linux. */ + +#include <features.h> +#include <signal.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/ucontext.h> +#include <sys/user.h> +#include <bits/wordsize.h> + +__BEGIN_DECLS + +#define ELF_NGREG 38 + +typedef struct + { + union + { + unsigned long pr_regs[32]; + double pr_dregs[16]; + } pr_fr; + unsigned long __unused; + unsigned long pr_fsr; + unsigned char pr_qcnt; + unsigned char pr_q_entrysize; + unsigned char pr_en; + unsigned int pr_q[64]; + } elf_fpregset_t; + +typedef unsigned long elf_greg_t; +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +struct elf_siginfo + { + int si_signo; /* Signal number. */ + int si_code; /* Extra code. */ + int si_errno; /* Errno. */ + }; + +/* Definitions to generate Intel SVR4-like core files. These mostly + have the same names as the SVR4 types with "elf_" tacked on the + front to prevent clashes with linux definitions, and the typedef + forms have been avoided. This is mostly like the SVR4 structure, + but more Linuxy, with things that Linux does not support and which + gdb doesn't really use excluded. Fields present but not used are + marked with "XXX". */ +struct elf_prstatus + { + struct elf_siginfo pr_info; /* Info associated with signal. */ + short int pr_cursig; /* Current signal. */ + unsigned long int pr_sigpend; /* Set of pending signals. */ + unsigned long int pr_sighold; /* Set of held signals. */ + __pid_t pr_pid; + __pid_t pr_ppid; + __pid_t pr_pgrp; + __pid_t pr_sid; + struct timeval pr_utime; /* User time. */ + struct timeval pr_stime; /* System time. */ + struct timeval pr_cutime; /* Cumulative user time. */ + struct timeval pr_cstime; /* Cumulative system time. */ + elf_gregset_t pr_reg; /* GP registers. */ + int pr_fpvalid; /* True if math copro being used. */ + }; + + +#define ELF_PRARGSZ (80) /* Number of chars for args */ + +struct elf_prpsinfo + { + char pr_state; /* Numeric process state. */ + char pr_sname; /* Char for pr_state. */ + char pr_zomb; /* Zombie. */ + char pr_nice; /* Nice val. */ + unsigned long int pr_flag; /* Flags. */ + unsigned short int pr_uid; + unsigned short int pr_gid; + int pr_pid, pr_ppid, pr_pgrp, pr_sid; + /* Lots missing */ + char pr_fname[16]; /* Filename of executable. */ + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */ + }; + +/* Addresses. */ +typedef void *psaddr_t; + +/* Register sets. Linux has different names. */ +typedef elf_gregset_t prgregset_t; +typedef elf_fpregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __pid_t lwpid_t; + + +typedef struct elf_prstatus prstatus_t; +typedef struct elf_prpsinfo prpsinfo_t; + +__END_DECLS + +#endif /* sys/procfs.h */ diff --git a/libc/sysdeps/linux/nios2/sys/ucontext.h b/libc/sysdeps/linux/nios2/sys/ucontext.h new file mode 100644 index 000000000..1805b4eac --- /dev/null +++ b/libc/sysdeps/linux/nios2/sys/ucontext.h @@ -0,0 +1,104 @@ +/* Copyright (C) 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +/* + * Location of the users' stored registers relative to R0. + * Usage is as an index into a gregset_t array or as u.u_ar0[XX]. + */ +#define REG_PSR (0) +#define REG_PC (1) +#define REG_SPARE (2) +#define REG_WVALID (3) +#define REG_G1 (4) +#define REG_G2 (5) +#define REG_G3 (6) +#define REG_G4 (7) +#define REG_G5 (8) +#define REG_G6 (9) +#define REG_G7 (10) +#define REG_O0 (11) +#define REG_O1 (12) +#define REG_O2 (13) +#define REG_O3 (14) +#define REG_O4 (15) +#define REG_O5 (16) +#define REG_O6 (17) +#define REG_O7 (18) +#define REG_GLOBALS (19) + +/* + * A gregset_t is defined as an array type for compatibility with the reference + * source. This is important due to differences in the way the C language + * treats arrays and structures as parameters. + * + * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)), + * but that the ABI defines it absolutely to be 21 (resp. 19). + */ + +#define NGREG 20 +typedef int greg_t; + +typedef greg_t gregset_t[NGREG]; + +/* + * The following structures define how a register window can appear on the + * stack. This structure is available (when required) through the `gwins' + * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the + * maximum number of outstanding register windows defined in the NIOS + * architecture (*not* implementation). + */ +#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */ +struct rwindow + { + greg_t rw_local[8]; /* locals */ + greg_t rw_in[8]; /* ins */ + }; + +#define rw_fp rw_in[6] /* frame pointer */ +#define rw_rtn rw_in[7] /* return address */ + +typedef struct gwindows + { + int wbcnt; + int *spbuf[NIOS_MAXREGWINDOW]; + struct rwindow wbuf[NIOS_MAXREGWINDOW]; + } gwindows_t; + +typedef struct + { + gregset_t gregs; /* general register set */ + gwindows_t *gwins; /* POSSIBLE pointer to register windows */ + } mcontext_t; + + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long uc_flags; + struct ucontext *uc_link; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/nios2/syscall.c b/libc/sysdeps/linux/nios2/syscall.c new file mode 100644 index 000000000..c6cce215a --- /dev/null +++ b/libc/sysdeps/linux/nios2/syscall.c @@ -0,0 +1,47 @@ +/* + * libc/sysdeps/linux/nios2/syscall.c -- generic syscall function for linux/nios2 + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <features.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/syscall.h> + + +long syscall(long sysnum, long a, long b, long c, long d, long e, long f) +{ + register long _r2 asm("r2")=(long)TRAP_ID_SYSCALL; + register long _r3 asm("r3")=(long)sysnum; + + register long _r4 asm("r4")=(long)(a); + register long _r5 asm("r5")=(long)(b); + register long _r6 asm("r6")=(long)(c); + register long _r7 asm("r7")=(long)(d); + register long _r8 asm("r8")=(long)(e); + register long _r9 asm("r9")=(long)(f); + asm volatile( + "trap " + : "=r"(_r2), "=r"(_r3) + : "0"(_r2), "1"(_r3), + "r"(_r4), "r"(_r5), "r"(_r6), "r"(_r7), "r"(_r8), "r"(_r9) + : "memory"); + + __syscall_return (long, _r2); +} + diff --git a/libc/sysdeps/linux/nios2/vfork.S b/libc/sysdeps/linux/nios2/vfork.S new file mode 100644 index 000000000..a19a90023 --- /dev/null +++ b/libc/sysdeps/linux/nios2/vfork.S @@ -0,0 +1,53 @@ +/* + * libc/sysdeps/linux/nios2/vfork.S -- `vfork' syscall for linux/nios2 + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Wentao Xu <wentao@microtronix.com> + */ +#include <asm/unistd.h> + +#ifndef __NR_vfork +#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */ +#endif + + .text + .balign 4 + .globl errno + .globl vfork + .globl __libc_vfork +#if defined __HAVE_ELF__ + .type vfork,@function + .type __libc_vfork,@function +#endif +vfork: +__libc_vfork: + movui r2, TRAP_ID_SYSCALL + movui r3, __NR_vfork + trap + movi r8, -4096 + bltu r8, r2, fix_errno + ret +fix_errno: + sub r8, r0, r2 + + addi sp, sp, -8 + stw ra, 4(sp) + stw r8, 0(sp) +#ifndef __PIC__ + call __errno_location +#else + +#endif + ldw ra, 4(sp) + ldw r8, 0(sp) + stw r8, 0(r2) + + addi r2, r0, -1 + addi sp, sp, 8 + ret + diff --git a/libpthread/linuxthreads/sysdeps/nios/pt-machine.h b/libpthread/linuxthreads/sysdeps/nios/pt-machine.h new file mode 100644 index 000000000..5d82b8d16 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/nios/pt-machine.h @@ -0,0 +1,67 @@ +/* Machine-dependent pthreads configuration and inline functions. + ARM version. + Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Philip Blundell <philb@gnu.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +/* Spinlock implementation; required. */ +/* it is weird and dangerous to disable interrupt in userspace, but for nios + what else we can do before we have a swap like instruction? This is better + than nothing + */ +PT_EI long int +testandset (int *spinlock) +{ + unsigned int ret; + + __asm__ __volatile__("pfx 8\n\t" + "wrctl %1 ; disable interrupt\n\t" + "nop\n\t" + "nop\n\t" + "ld %0, [%2]\n\t" + "st [%2], %1\n\t" + "pfx 9\n\t" + "wrctl %1 ; enable interrupt\n\t" + "nop\n\t" + "nop\n\t" + : "=&r"(ret) + : "r"(1), "r"(spinlock) + : "memory"); + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("%sp"); + +/* nios needs more because of reg windows */ +#define THREAD_MANAGER_STACK_SIZE (32*1024) +#define STACK_SIZE (32*1024) + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/nios2/pt-machine.h b/libpthread/linuxthreads/sysdeps/nios2/pt-machine.h new file mode 100644 index 000000000..484a77e14 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/nios2/pt-machine.h @@ -0,0 +1,58 @@ +/* Machine-dependent pthreads configuration and inline functions. + nios2 version. + Copyright (C) 1996, 1998, 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + unsigned int scratch; + long int ret=-2; + + __asm__ __volatile__( + "rdctl %0, status\n\t" + "and %0, %0, %1\n\t" + "wrctl status, %0 #disable interrupts\n\t" + "ldw %1, 0(%4)\n\t" + "stw %3, 0(%4)\n\t" + "ori %0, %0, 1\n\t" + "wrctl status, %0 #enable interrupts\n\t" + : "=&r"(scratch), "=r"(ret) + : "1"(ret), "r"(1), "r"(spinlock) + : "memory"); + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("%sp"); + +#endif /* pt-machine.h */ |