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| author | Ulrich Drepper <drepper@redhat.com> | 2004-04-13 00:26:51 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-04-13 00:26:51 +0000 |
| commit | cfcc576a36aebf169a1a3e8b58cd7dd956123cb2 (patch) | |
| tree | b26374c7143b9b0a1ac74485b5f01cb2ffb733b7 /sysdeps | |
| parent | 21496a85f9785431c8dac055a1102e6c339146a2 (diff) | |
| download | glibc-cfcc576a36aebf169a1a3e8b58cd7dd956123cb2.zip glibc-cfcc576a36aebf169a1a3e8b58cd7dd956123cb2.tar.gz glibc-cfcc576a36aebf169a1a3e8b58cd7dd956123cb2.tar.bz2 | |
(DO_INLINE_SYSCALL): Move LOAD_ARGS_##nr up front and add LOAD_REGS_##nr. (LOAD_ARGS_0, LOAD_ARGS_1, LOAD_ARGS_2, LOAD_ARGS_3, LOAD_ARGS_4) (LOAD_ARGS_5, LOAD_ARGS_6): Load argument values into temporary variables. (LOAD_REGS_0, LOAD_REGS_1, LOAD_REGS_2, LOAD_REGS_3, LOAD_REGS_4) (LOAD_REGS_5, LOAD_REGS_6): New macros to actually load the syscall argument registers.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/sysdep.h | 63 |
1 files changed, 42 insertions, 21 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h index 6c418b6..0868ad5 100644 --- a/sysdeps/unix/sysv/linux/ia64/sysdep.h +++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc. +/* 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 @@ -200,12 +200,13 @@ #ifdef IA64_USE_NEW_STUB #define DO_INLINE_SYSCALL(name, nr, args...) \ + LOAD_ARGS_##nr (args) \ register long _r8 __asm ("r8"); \ register long _r10 __asm ("r10"); \ register long _r15 __asm ("r15") = __NR_##name; \ register void *_b7 __asm ("b7") = ((tcbhead_t *) __thread_self)->private; \ long _retval; \ - LOAD_ARGS_##nr (args); \ + LOAD_REGS_##nr \ /* \ * Don't specify any unwind info here. We mark ar.pfs as \ * clobbered. This will force the compiler to save ar.pfs \ @@ -221,11 +222,12 @@ #else /* !IA64_USE_NEW_STUB */ #define DO_INLINE_SYSCALL(name, nr, args...) \ + LOAD_ARGS_##nr (args) \ register long _r8 asm ("r8"); \ register long _r10 asm ("r10"); \ register long _r15 asm ("r15") = __NR_##name; \ long _retval; \ - LOAD_ARGS_##nr (args); \ + LOAD_REGS_##nr \ __asm __volatile (BREAK_INSN (__BREAK_SYSCALL) \ : "=r" (_r8), "=r" (_r10), "=r" (_r15) \ ASM_OUTARGS_##nr \ @@ -262,25 +264,44 @@ #undef INTERNAL_SYSCALL_ERRNO #define INTERNAL_SYSCALL_ERRNO(val, err) (val) -#define LOAD_ARGS_0() do { } while (0) -#define LOAD_ARGS_1(out0) \ - register long _out0 asm ("out0") = (long) (out0); \ +#define LOAD_ARGS_0() +#define LOAD_REGS_0 +#define LOAD_ARGS_1(a1) \ + long _arg1 = (long) (a1); \ LOAD_ARGS_0 () -#define LOAD_ARGS_2(out0, out1) \ - register long _out1 asm ("out1") = (long) (out1); \ - LOAD_ARGS_1 (out0) -#define LOAD_ARGS_3(out0, out1, out2) \ - register long _out2 asm ("out2") = (long) (out2); \ - LOAD_ARGS_2 (out0, out1) -#define LOAD_ARGS_4(out0, out1, out2, out3) \ - register long _out3 asm ("out3") = (long) (out3); \ - LOAD_ARGS_3 (out0, out1, out2) -#define LOAD_ARGS_5(out0, out1, out2, out3, out4) \ - register long _out4 asm ("out4") = (long) (out4); \ - LOAD_ARGS_4 (out0, out1, out2, out3) -#define LOAD_ARGS_6(out0, out1, out2, out3, out4, out5) \ - register long _out5 asm ("out5") = (long) (out5); \ - LOAD_ARGS_5 (out0, out1, out2, out3, out4) +#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) |