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2004-04-09  Andreas Schwab  <schwab@suse.de>

	* sysdeps/unix/sysv/linux/ia64/sysdep.h (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.

	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (INTERNAL_SYSCALL): 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.
This commit is contained in:
Ulrich Drepper 2004-04-13 00:27:59 +00:00
parent cfcc576a36
commit 381a0c26d7
2 changed files with 47 additions and 7 deletions
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20
ChangeLog
View file

@ -1,3 +1,23 @@
2004-04-09 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (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.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (INTERNAL_SYSCALL): 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.
2004-04-09 Thorsten Kukuk <kukuk@suse.de>
* sysdeps/s390/ffs.c: Don't add ffsl weak alias on s390x.

34
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View file

@ -1,4 +1,4 @@
/* Copyright (C) 2001,02,03 Free Software Foundation, Inc.
/* Copyright (C) 2001,02,03,04 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
@ -241,6 +241,7 @@
({ \
unsigned long resultvar; \
LOAD_ARGS_##nr (args) \
LOAD_REGS_##nr \
asm volatile ( \
"movq %1, %%rax\n\t" \
"syscall\n\t" \
@ -256,36 +257,55 @@
#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
#define LOAD_ARGS_0()
#define LOAD_REGS_0
#define ASM_ARGS_0
#define LOAD_ARGS_1(a1) \
register long int _a1 asm ("rdi") = (long) (a1); \
long int __arg1 = (long) (a1); \
LOAD_ARGS_0 ()
#define LOAD_REGS_1 \
register long int _a1 asm ("rdi") = __arg1; \
LOAD_REGS_0
#define ASM_ARGS_1 ASM_ARGS_0, "r" (_a1)
#define LOAD_ARGS_2(a1, a2) \
register long int _a2 asm ("rsi") = (long) (a2); \
long int __arg2 = (long) (a2); \
LOAD_ARGS_1 (a1)
#define LOAD_REGS_2 \
register long int _a2 asm ("rsi") = __arg2; \
LOAD_REGS_1
#define ASM_ARGS_2 ASM_ARGS_1, "r" (_a2)
#define LOAD_ARGS_3(a1, a2, a3) \
register long int _a3 asm ("rdx") = (long) (a3); \
long int __arg3 = (long) (a3); \
LOAD_ARGS_2 (a1, a2)
#define LOAD_REGS_3 \
register long int _a3 asm ("rdx") = __arg3; \
LOAD_REGS_2
#define ASM_ARGS_3 ASM_ARGS_2, "r" (_a3)
#define LOAD_ARGS_4(a1, a2, a3, a4) \
register long int _a4 asm ("r10") = (long) (a4); \
long int __arg4 = (long) (a4); \
LOAD_ARGS_3 (a1, a2, a3)
#define LOAD_REGS_4 \
register long int _a4 asm ("r10") = __arg4; \
LOAD_REGS_3
#define ASM_ARGS_4 ASM_ARGS_3, "r" (_a4)
#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
register long int _a5 asm ("r8") = (long) (a5); \
long int __arg5 = (long) (a5); \
LOAD_ARGS_4 (a1, a2, a3, a4)
#define LOAD_REGS_5 \
register long int _a5 asm ("r8") = __arg5; \
LOAD_REGS_4
#define ASM_ARGS_5 ASM_ARGS_4, "r" (_a5)
#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
register long int _a6 asm ("r9") = (long) (a6); \
long int __arg6 = (long) (a6); \
LOAD_ARGS_5 (a1, a2, a3, a4, a5)
#define LOAD_REGS_6 \
register long int _a6 asm ("r9") = __arg6; \
LOAD_REGS_5
#define ASM_ARGS_6 ASM_ARGS_5, "r" (_a6)
#endif /* __ASSEMBLER__ */