From c3d50a69839f8d80fc7244fde6e4a57e5e39dd36 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Fri, 16 Jul 2004 11:09:34 +0000
Subject: Pete Popov writes:
Hi Erik,
I'm not sure why the NIOS support is not in uClibc -- perhaps the patch
was rejected or never submitted? In any case, I'm playing with some NIOS
stuff and created this patch against 0.9.26. The work was done by
Microtronix. I'm not sure who else contributed to it. It would be great
to have the NIOS support available in uClibc so developers don't have to
go searching for these bits.
Pete
---
extra/Configs/Config.in | 14 +
extra/Configs/Config.nios | 31 ++
extra/Configs/Config.nios2 | 30 ++
include/elf.h | 52 +++
libc/sysdeps/linux/Makefile | 2 +-
libc/sysdeps/linux/nios/Makefile | 86 ++++
libc/sysdeps/linux/nios/NM_Macros.S | 473 +++++++++++++++++++++
libc/sysdeps/linux/nios/NR_Math1.S | 63 +++
libc/sysdeps/linux/nios/__longjmp.S | 108 +++++
libc/sysdeps/linux/nios/bits/endian.h | 8 +
libc/sysdeps/linux/nios/bits/fcntl.h | 180 ++++++++
libc/sysdeps/linux/nios/bits/kernel_types.h | 43 ++
libc/sysdeps/linux/nios/bits/mathdef.h | 48 +++
libc/sysdeps/linux/nios/bits/mman.h | 75 ++++
libc/sysdeps/linux/nios/bits/resource.h | 209 +++++++++
libc/sysdeps/linux/nios/bits/setjmp.h | 74 ++++
libc/sysdeps/linux/nios/bits/sigcontextinfo.h | 27 ++
libc/sysdeps/linux/nios/bits/stackinfo.h | 28 ++
libc/sysdeps/linux/nios/bits/stat.h | 134 ++++++
libc/sysdeps/linux/nios/bits/syscalls.h | 12 +
libc/sysdeps/linux/nios/bits/wordsize.h | 19 +
libc/sysdeps/linux/nios/brk.c | 45 ++
libc/sysdeps/linux/nios/bsd-_setjmp.S | 1 +
libc/sysdeps/linux/nios/bsd-setjmp.S | 1 +
libc/sysdeps/linux/nios/clone.S | 91 ++++
libc/sysdeps/linux/nios/crt0.S | 57 +++
libc/sysdeps/linux/nios/crt0.c | 73 ++++
libc/sysdeps/linux/nios/crtbegin.c | 37 ++
libc/sysdeps/linux/nios/crtend.c | 43 ++
libc/sysdeps/linux/nios/fpu_control.h | 97 +++++
libc/sysdeps/linux/nios/setjmp.S | 101 +++++
libc/sysdeps/linux/nios/sys/procfs.h | 123 ++++++
libc/sysdeps/linux/nios/sys/ucontext.h | 104 +++++
libc/sysdeps/linux/nios/vfork.S | 58 +++
libc/sysdeps/linux/nios2/Makefile | 86 ++++
libc/sysdeps/linux/nios2/__longjmp.S | 48 +++
libc/sysdeps/linux/nios2/bits/endian.h | 7 +
libc/sysdeps/linux/nios2/bits/fcntl.h | 180 ++++++++
libc/sysdeps/linux/nios2/bits/kernel_stat.h | 56 +++
libc/sysdeps/linux/nios2/bits/kernel_types.h | 44 ++
libc/sysdeps/linux/nios2/bits/mathdef.h | 48 +++
libc/sysdeps/linux/nios2/bits/mman.h | 75 ++++
libc/sysdeps/linux/nios2/bits/profil-counter.h | 26 ++
libc/sysdeps/linux/nios2/bits/resource.h | 209 +++++++++
libc/sysdeps/linux/nios2/bits/setjmp.h | 67 +++
libc/sysdeps/linux/nios2/bits/sigcontextinfo.h | 26 ++
libc/sysdeps/linux/nios2/bits/stackinfo.h | 28 ++
libc/sysdeps/linux/nios2/bits/stat.h | 134 ++++++
libc/sysdeps/linux/nios2/bits/syscalls.h | 19 +
libc/sysdeps/linux/nios2/bits/wordsize.h | 19 +
libc/sysdeps/linux/nios2/brk.c | 46 ++
libc/sysdeps/linux/nios2/bsd-_setjmp.S | 45 ++
libc/sysdeps/linux/nios2/bsd-setjmp.S | 52 +++
libc/sysdeps/linux/nios2/clone.S | 66 +++
libc/sysdeps/linux/nios2/clone.c | 49 +++
libc/sysdeps/linux/nios2/crt0.S | 64 +++
libc/sysdeps/linux/nios2/crti.S | 31 ++
libc/sysdeps/linux/nios2/crtn.S | 30 ++
libc/sysdeps/linux/nios2/fpu_control.h | 97 +++++
libc/sysdeps/linux/nios2/setjmp.S | 51 +++
libc/sysdeps/linux/nios2/sys/procfs.h | 123 ++++++
libc/sysdeps/linux/nios2/sys/ucontext.h | 104 +++++
libc/sysdeps/linux/nios2/syscall.c | 47 ++
libc/sysdeps/linux/nios2/vfork.S | 53 +++
libpthread/linuxthreads/sysdeps/nios/pt-machine.h | 67 +++
libpthread/linuxthreads/sysdeps/nios2/pt-machine.h | 58 +++
66 files changed, 4601 insertions(+), 1 deletion(-)
create mode 100644 extra/Configs/Config.nios
create mode 100644 extra/Configs/Config.nios2
create mode 100644 libc/sysdeps/linux/nios/Makefile
create mode 100644 libc/sysdeps/linux/nios/NM_Macros.S
create mode 100644 libc/sysdeps/linux/nios/NR_Math1.S
create mode 100644 libc/sysdeps/linux/nios/__longjmp.S
create mode 100644 libc/sysdeps/linux/nios/bits/endian.h
create mode 100644 libc/sysdeps/linux/nios/bits/fcntl.h
create mode 100644 libc/sysdeps/linux/nios/bits/kernel_types.h
create mode 100644 libc/sysdeps/linux/nios/bits/mathdef.h
create mode 100644 libc/sysdeps/linux/nios/bits/mman.h
create mode 100644 libc/sysdeps/linux/nios/bits/resource.h
create mode 100644 libc/sysdeps/linux/nios/bits/setjmp.h
create mode 100644 libc/sysdeps/linux/nios/bits/sigcontextinfo.h
create mode 100644 libc/sysdeps/linux/nios/bits/stackinfo.h
create mode 100644 libc/sysdeps/linux/nios/bits/stat.h
create mode 100644 libc/sysdeps/linux/nios/bits/syscalls.h
create mode 100644 libc/sysdeps/linux/nios/bits/wordsize.h
create mode 100644 libc/sysdeps/linux/nios/brk.c
create mode 100644 libc/sysdeps/linux/nios/bsd-_setjmp.S
create mode 100644 libc/sysdeps/linux/nios/bsd-setjmp.S
create mode 100644 libc/sysdeps/linux/nios/clone.S
create mode 100644 libc/sysdeps/linux/nios/crt0.S
create mode 100644 libc/sysdeps/linux/nios/crt0.c
create mode 100644 libc/sysdeps/linux/nios/crtbegin.c
create mode 100644 libc/sysdeps/linux/nios/crtend.c
create mode 100644 libc/sysdeps/linux/nios/fpu_control.h
create mode 100644 libc/sysdeps/linux/nios/setjmp.S
create mode 100644 libc/sysdeps/linux/nios/sys/procfs.h
create mode 100644 libc/sysdeps/linux/nios/sys/ucontext.h
create mode 100644 libc/sysdeps/linux/nios/vfork.S
create mode 100644 libc/sysdeps/linux/nios2/Makefile
create mode 100644 libc/sysdeps/linux/nios2/__longjmp.S
create mode 100644 libc/sysdeps/linux/nios2/bits/endian.h
create mode 100644 libc/sysdeps/linux/nios2/bits/fcntl.h
create mode 100644 libc/sysdeps/linux/nios2/bits/kernel_stat.h
create mode 100644 libc/sysdeps/linux/nios2/bits/kernel_types.h
create mode 100644 libc/sysdeps/linux/nios2/bits/mathdef.h
create mode 100644 libc/sysdeps/linux/nios2/bits/mman.h
create mode 100644 libc/sysdeps/linux/nios2/bits/profil-counter.h
create mode 100644 libc/sysdeps/linux/nios2/bits/resource.h
create mode 100644 libc/sysdeps/linux/nios2/bits/setjmp.h
create mode 100644 libc/sysdeps/linux/nios2/bits/sigcontextinfo.h
create mode 100644 libc/sysdeps/linux/nios2/bits/stackinfo.h
create mode 100644 libc/sysdeps/linux/nios2/bits/stat.h
create mode 100644 libc/sysdeps/linux/nios2/bits/syscalls.h
create mode 100644 libc/sysdeps/linux/nios2/bits/wordsize.h
create mode 100644 libc/sysdeps/linux/nios2/brk.c
create mode 100644 libc/sysdeps/linux/nios2/bsd-_setjmp.S
create mode 100644 libc/sysdeps/linux/nios2/bsd-setjmp.S
create mode 100644 libc/sysdeps/linux/nios2/clone.S
create mode 100644 libc/sysdeps/linux/nios2/clone.c
create mode 100644 libc/sysdeps/linux/nios2/crt0.S
create mode 100644 libc/sysdeps/linux/nios2/crti.S
create mode 100644 libc/sysdeps/linux/nios2/crtn.S
create mode 100644 libc/sysdeps/linux/nios2/fpu_control.h
create mode 100644 libc/sysdeps/linux/nios2/setjmp.S
create mode 100644 libc/sysdeps/linux/nios2/sys/procfs.h
create mode 100644 libc/sysdeps/linux/nios2/sys/ucontext.h
create mode 100644 libc/sysdeps/linux/nios2/syscall.c
create mode 100644 libc/sysdeps/linux/nios2/vfork.S
create mode 100644 libpthread/linuxthreads/sysdeps/nios/pt-machine.h
create mode 100644 libpthread/linuxthreads/sysdeps/nios2/pt-machine.h
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 ne