diff options
Diffstat (limited to 'libc/sysdeps/linux/ia64/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/ia64/bits/syscalls.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/ia64/bits/syscalls.h b/libc/sysdeps/linux/ia64/bits/syscalls.h new file mode 100644 index 000000000..591075ab0 --- /dev/null +++ b/libc/sysdeps/linux/ia64/bits/syscalls.h @@ -0,0 +1,198 @@ +/* Copyright (C) 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, 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 <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +/* 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> + +#ifndef __set_errno +# define __set_errno(val) (*__errno_location ()) = (val) +#endif + + +#ifndef __ASSEMBLER__ + +#undef IA64_USE_NEW_STUB + +#define SYS_ify(syscall_name) __NR_##syscall_name + +/* taken from asm-ia64/break.h */ +#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 */ |