diff options
Diffstat (limited to 'sysdeps/i386/sysdep.h')
| -rw-r--r-- | sysdeps/i386/sysdep.h | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/sysdeps/i386/sysdep.h b/sysdeps/i386/sysdep.h index e955b43..2739cb0 100644 --- a/sysdeps/i386/sysdep.h +++ b/sysdeps/i386/sysdep.h @@ -1,5 +1,5 @@ /* Assembler macros for i386. - Copyright (C) 1991,92,93,95,96,98,2002,2003 Free Software Foundation, Inc. + Copyright (C) 1991-93,95,96,98,2002,2003,2005 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 @@ -57,10 +57,12 @@ .align ALIGNARG(4); \ STABS_FUN(name) \ C_LABEL(name) \ + cfi_startproc; \ CALL_MCOUNT #undef END #define END(name) \ + cfi_endproc; \ ASM_SIZE_DIRECTIVE(name) \ STABS_FUN_END(name) @@ -92,7 +94,9 @@ /* The mcount code relies on a normal frame pointer being on the stack to locate our caller, so push one just for its benefit. */ #define CALL_MCOUNT \ - pushl %ebp; movl %esp, %ebp; call JUMPTARGET(mcount); popl %ebp; + pushl %ebp; cfi_adjust_cfa_offset (4); movl %esp, %ebp; \ + cfi_def_cfa_register (ebp); call JUMPTARGET(mcount); \ + popl %ebp; cfi_def_cfa (esp, 4); #else #define CALL_MCOUNT /* Do nothing. */ #endif @@ -122,9 +126,38 @@ lose: SYSCALL_PIC_SETUP \ #define JUMPTARGET(name) name##@PLT #define SYSCALL_PIC_SETUP \ pushl %ebx; \ + cfi_adjust_cfa_offset (4); \ call 0f; \ 0: popl %ebx; \ + cfi_adjust_cfa_offset (-4); \ addl $_GLOBAL_OFFSET_TABLE+[.-0b], %ebx; + +# 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) \ + .ifndef __i686.get_pc_thunk.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; \ + .endif; \ + call __i686.get_pc_thunk.reg +# endif + +# define LOAD_PIC_REG(reg) \ + SETUP_PIC_REG(reg); addl $_GLOBAL_OFFSET_TABLE_, %e##reg + #else #define JUMPTARGET(name) name #define SYSCALL_PIC_SETUP /* Nothing. */ |