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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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112
sysdeps/unix/sysv/linux/i386/sysdep.h
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@ -1,5 +1,5 @@
/* Copyright (C) 1992,1993,1995-2000,2002,2003,2004
Free Software Foundation, Inc.
/* Copyright (C) 1992,1993,1995-2000,2002-2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.org>, August 1995.
@ -109,27 +109,6 @@
# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
#else
# ifndef HAVE_HIDDEN
# define SETUP_PIC_REG(reg) \
call 1f; \
.subsection 1; \
1:movl (%esp), %e##reg; \
ret; \
.previous
# else
# define SETUP_PIC_REG(reg) \
.section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits; \
.globl __i686.get_pc_thunk.reg; \
.hidden __i686.get_pc_thunk.reg; \
.type __i686.get_pc_thunk.reg,@function; \
__i686.get_pc_thunk.reg: \
movl (%esp), %e##reg; \
ret; \
.size __i686.get_pc_thunk.reg, . - __i686.get_pc_thunk.reg; \
.previous; \
call __i686.get_pc_thunk.reg
# endif
# if RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
0:SETUP_PIC_REG(cx); \
@ -154,22 +133,36 @@ __i686.get_pc_thunk.reg: \
movl SYSCALL_ERROR_ERRNO@GOTNTPOFF(%ecx), %ecx; \
xorl %edx, %edx; \
subl %eax, %edx; \
movl %edx, %gs:0(%ecx); \
SYSCALL_ERROR_HANDLER_TLS_STORE (%edx, %ecx); \
orl $-1, %eax; \
jmp L(pseudo_end);
# ifndef NO_TLS_DIRECT_SEG_REFS
# define SYSCALL_ERROR_HANDLER_TLS_STORE(src, destoff) \
movl src, %gs:(destoff)
# else
# define SYSCALL_ERROR_HANDLER_TLS_STORE(src, destoff) \
addl %gs:0, destoff; \
movl src, (destoff)
# endif
# else
# define SYSCALL_ERROR_HANDLER \
0:pushl %ebx; \
cfi_adjust_cfa_offset (4); \
cfi_rel_offset (ebx, 0); \
SETUP_PIC_REG (bx); \
addl $_GLOBAL_OFFSET_TABLE_, %ebx; \
xorl %edx, %edx; \
subl %eax, %edx; \
pushl %edx; \
cfi_adjust_cfa_offset (4); \
PUSH_ERRNO_LOCATION_RETURN; \
call BP_SYM (__errno_location)@PLT; \
POP_ERRNO_LOCATION_RETURN; \
popl %ecx; \
cfi_adjust_cfa_offset (-4); \
popl %ebx; \
cfi_adjust_cfa_offset (-4); \
cfi_restore (ebx); \
movl %ecx, (%eax); \
orl $-1, %eax; \
jmp L(pseudo_end);
@ -265,9 +258,11 @@ __i686.get_pc_thunk.reg: \
#define PUSHARGS_1 movl %ebx, %edx; L(SAVEBX1): PUSHARGS_0
#define DOARGS_1 _DOARGS_1 (4)
#define POPARGS_1 POPARGS_0; movl %edx, %ebx; L(RESTBX1):
#define _PUSHARGS_1 pushl %ebx; L(PUSHBX1): _PUSHARGS_0
#define _PUSHARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \
cfi_rel_offset (ebx, 0); L(PUSHBX1): _PUSHARGS_0
#define _DOARGS_1(n) movl n(%esp), %ebx; _DOARGS_0(n-4)
#define _POPARGS_1 _POPARGS_0; popl %ebx; L(POPBX1):
#define _POPARGS_1 _POPARGS_0; popl %ebx; cfi_adjust_cfa_offset (-4); \
cfi_restore (ebx); L(POPBX1):
#define PUSHARGS_2 PUSHARGS_1
#define DOARGS_2 _DOARGS_2 (8)
@ -286,23 +281,29 @@ __i686.get_pc_thunk.reg: \
#define PUSHARGS_4 _PUSHARGS_4
#define DOARGS_4 _DOARGS_4 (24)
#define POPARGS_4 _POPARGS_4
#define _PUSHARGS_4 pushl %esi; L(PUSHSI1): _PUSHARGS_3
#define _PUSHARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \
cfi_rel_offset (esi, 0); L(PUSHSI1): _PUSHARGS_3
#define _DOARGS_4(n) movl n(%esp), %esi; _DOARGS_3 (n-4)
#define _POPARGS_4 _POPARGS_3; popl %esi; L(POPSI1):
#define _POPARGS_4 _POPARGS_3; popl %esi; cfi_adjust_cfa_offset (-4); \
cfi_restore (esi); L(POPSI1):
#define PUSHARGS_5 _PUSHARGS_5
#define DOARGS_5 _DOARGS_5 (32)
#define POPARGS_5 _POPARGS_5
#define _PUSHARGS_5 pushl %edi; L(PUSHDI1): _PUSHARGS_4
#define _PUSHARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \
cfi_rel_offset (edi, 0); L(PUSHDI1): _PUSHARGS_4
#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4)
#define _POPARGS_5 _POPARGS_4; popl %edi; L(POPDI1):
#define _POPARGS_5 _POPARGS_4; popl %edi; cfi_adjust_cfa_offset (-4); \
cfi_restore (edi); L(POPDI1):
#define PUSHARGS_6 _PUSHARGS_6
#define DOARGS_6 _DOARGS_6 (36)
#define DOARGS_6 _DOARGS_6 (40)
#define POPARGS_6 _POPARGS_6
#define _PUSHARGS_6 pushl %ebp; L(PUSHBP1): _PUSHARGS_5
#define _PUSHARGS_6 pushl %ebp; cfi_adjust_cfa_offset (4); \
cfi_rel_offset (ebp, 0); L(PUSHBP1): _PUSHARGS_5
#define _DOARGS_6(n) movl n(%esp), %ebp; _DOARGS_5 (n-4)
#define _POPARGS_6 _POPARGS_5; popl %ebp; L(POPBP1):
#define _POPARGS_6 _POPARGS_5; popl %ebp; cfi_adjust_cfa_offset (-4); \
cfi_restore (ebp); L(POPBP1):
#else /* !__ASSEMBLER__ */
@ -446,7 +447,7 @@ asm (".L__X'%ebx = 1\n\t"
#define LOADARGS_0
#ifdef __PIC__
# if defined I386_USE_SYSENTER
# if defined I386_USE_SYSENTER && defined SHARED
# define LOADARGS_1 \
"bpushl .L__X'%k3, %k3\n\t"
# define LOADARGS_5 \
@ -532,6 +533,49 @@ asm (".L__X'%ebx = 1\n\t"
# define EXTRAVAR_5
#endif
/* Consistency check for position-independent code. */
#ifdef __PIC__
# define check_consistency() \
({ int __res; \
__asm__ __volatile__ \
("call __i686.get_pc_thunk.cx;" \
"addl $_GLOBAL_OFFSET_TABLE_, %%ecx;" \
"subl %%ebx, %%ecx;" \
"je 1f;" \
"ud2;" \
"1:\n" \
".section .gnu.linkonce.t.__i686.get_pc_thunk.cx,\"ax\",@progbits;" \
".globl __i686.get_pc_thunk.cx;" \
".hidden __i686.get_pc_thunk.cx;" \
".type __i686.get_pc_thunk.cx,@function;" \
"__i686.get_pc_thunk.cx:" \
"movl (%%esp), %%ecx;" \
"ret;" \
".previous" \
: "=c" (__res)); \
__res; })
#endif
#endif /* __ASSEMBLER__ */
/* Pointer mangling support. */
#if defined NOT_IN_libc && defined IS_IN_rtld
/* We cannot use the thread descriptor because in ld.so we use setjmp
earlier than the descriptor is initialized. Using a global variable
is too complicated here since we have no PC-relative addressing mode. */
#else
# ifdef __ASSEMBLER__
# define PTR_MANGLE(reg) xorl %gs:POINTER_GUARD, reg
# define PTR_DEMANGLE(reg) PTR_MANGLE (reg)
# else
# define PTR_MANGLE(var) asm ("xorl %%gs:%c2, %0" \
: "=r" (var) \
: "0" (var), \
"i" (offsetof (tcbhead_t, \
pointer_guard)))
# define PTR_DEMANGLE(var) PTR_MANGLE (var)
# endif
#endif
#endif /* linux/i386/sysdep.h */