/* Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Jes Sorensen, , April 1999. Based on code originally written by David Mosberger-Tang 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 _BITS_SYSCALLS_H #define _BITS_SYSCALLS_H #ifndef _SYSCALL_H # error "Never use directly; include instead." #endif #ifndef __ASSEMBLER__ #include #define SYS_ify(syscall_name) (__NR_##syscall_name) #undef IA64_USE_NEW_STUB /* taken from asm-ia64/break.h */ #define __IA64_BREAK_SYSCALL 0x100000 #define ___IA64_BREAK_SYSCALL "0x100000" #define _DO_SYSCALL(name, nr, args...) \ LOAD_ARGS_##nr (args) \ register long _r8 asm ("r8"); \ register long _r10 asm ("r10"); \ register long _r15 asm ("r15") = SYS_ify(name); \ long _retval; \ LOAD_REGS_##nr \ __asm __volatile ("break " ___IA64_BREAK_SYSCALL ";;\n\t" \ : "=r" (_r8), "=r" (_r10), "=r" (_r15) ASM_OUTARGS_##nr \ : "2" (_r15) ASM_ARGS_##nr \ : "memory" ASM_CLOBBERS_##nr); \ _retval = _r8; \ if (_r10 == -1) { \ __set_errno (_retval); \ _retval = -1; \ } #define LOAD_ARGS_0() #define LOAD_REGS_0 #define LOAD_ARGS_1(a1) \ long _arg1 = (long) (a1); \ LOAD_ARGS_0 () #define LOAD_REGS_1 \ register long _out0 asm ("out0") = _arg1; \ LOAD_REGS_0 #define LOAD_ARGS_2(a1, a2) \ long _arg2 = (long) (a2); \ LOAD_ARGS_1 (a1) #define LOAD_REGS_2 \ register long _out1 asm ("out1") = _arg2; \ LOAD_REGS_1 #define LOAD_ARGS_3(a1, a2, a3) \ long _arg3 = (long) (a3); \ LOAD_ARGS_2 (a1, a2) #define LOAD_REGS_3 \ register long _out2 asm ("out2") = _arg3; \ LOAD_REGS_2 #define LOAD_ARGS_4(a1, a2, a3, a4) \ long _arg4 = (long) (a4); \ LOAD_ARGS_3 (a1, a2, a3) #define LOAD_REGS_4 \ register long _out3 asm ("out3") = _arg4; \ LOAD_REGS_3 #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ long _arg5 = (long) (a5); \ LOAD_ARGS_4 (a1, a2, a3, a4) #define LOAD_REGS_5 \ register long _out4 asm ("out4") = _arg5; \ LOAD_REGS_4 #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ long _arg6 = (long) (a6); \ LOAD_ARGS_5 (a1, a2, a3, a4, a5) #define LOAD_REGS_6 \ register long _out5 asm ("out5") = _arg6; \ LOAD_REGS_5 #define ASM_OUTARGS_0 #define ASM_OUTARGS_1 ASM_OUTARGS_0, "=r" (_out0) #define ASM_OUTARGS_2 ASM_OUTARGS_1, "=r" (_out1) #define ASM_OUTARGS_3 ASM_OUTARGS_2, "=r" (_out2) #define ASM_OUTARGS_4 ASM_OUTARGS_3, "=r" (_out3) #define ASM_OUTARGS_5 ASM_OUTARGS_4, "=r" (_out4) #define ASM_OUTARGS_6 ASM_OUTARGS_5, "=r" (_out5) #ifdef IA64_USE_NEW_STUB #define ASM_ARGS_0 #define ASM_ARGS_1 ASM_ARGS_0, "4" (_out0) #define ASM_ARGS_2 ASM_ARGS_1, "5" (_out1) #define ASM_ARGS_3 ASM_ARGS_2, "6" (_out2) #define ASM_ARGS_4 ASM_ARGS_3, "7" (_out3) #define ASM_ARGS_5 ASM_ARGS_4, "8" (_out4) #define ASM_ARGS_6 ASM_ARGS_5, "9" (_out5) #else #define ASM_ARGS_0 #define ASM_ARGS_1 ASM_ARGS_0, "3" (_out0) #define ASM_ARGS_2 ASM_ARGS_1, "4" (_out1) #define ASM_ARGS_3 ASM_ARGS_2, "5" (_out2) #define ASM_ARGS_4 ASM_ARGS_3, "6" (_out3) #define ASM_ARGS_5 ASM_ARGS_4, "7" (_out4) #define ASM_ARGS_6 ASM_ARGS_5, "8" (_out5) #endif #define ASM_CLOBBERS_0 ASM_CLOBBERS_1, "out0" #define ASM_CLOBBERS_1 ASM_CLOBBERS_2, "out1" #define ASM_CLOBBERS_2 ASM_CLOBBERS_3, "out2" #define ASM_CLOBBERS_3 ASM_CLOBBERS_4, "out3" #define ASM_CLOBBERS_4 ASM_CLOBBERS_5, "out4" #define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5" #define ASM_CLOBBERS_6_COMMON , "out6", "out7", \ /* Non-stacked integer registers, minus r8, r10, r15. */ \ "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \ "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \ "r28", "r29", "r30", "r31", \ /* Predicate registers. */ \ "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \ /* Non-rotating fp registers. */ \ "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ /* Branch registers. */ \ "b6" #ifdef IA64_USE_NEW_STUB # define ASM_CLOBBERS_6 ASM_CLOBBERS_6_COMMON #else # define ASM_CLOBBERS_6 ASM_CLOBBERS_6_COMMON , "b7" #endif #define _syscall0(type,name) \ type name(void) \ { \ _DO_SYSCALL(name, 0); return (type) _retval; \ } #define _syscall1(type,name,type1,arg1) \ type name(type1 arg1) \ { \ _DO_SYSCALL(name, 1, arg1); return (type) _retval; \ } #define _syscall2(type,name,type1,arg1,type2,arg2) \ type name(type1 arg1, type2 arg2) \ { \ _DO_SYSCALL(name, 2, arg1, arg2); return (type) _retval; \ } #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ type name(type1 arg1, type2 arg2, type3 arg3) \ { \ _DO_SYSCALL(name, 3, arg1, arg2, arg3); return (type) _retval; \ } #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ { \ _DO_SYSCALL(name, 4, arg1, arg2, arg3, arg4); return (type) _retval; \ } #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ { \ _DO_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); return (type) _retval; \ } #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \ { \ _DO_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6); return (type) _retval; \ } #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */