diff options
Diffstat (limited to 'sysdeps/i386/elf/start.S')
| -rw-r--r-- | sysdeps/i386/elf/start.S | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/sysdeps/i386/elf/start.S b/sysdeps/i386/elf/start.S index 355cba21a1..8a4fc36157 100644 --- a/sysdeps/i386/elf/start.S +++ b/sysdeps/i386/elf/start.S @@ -1,5 +1,5 @@ /* Startup code compliant to the ELF i386 ABI. - Copyright (C) 1995,1996,1997,1998,2000,2001, 2002 Free Software Foundation, Inc. + Copyright (C) 1995-1998,2000,2001,2002,2003 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 @@ -67,6 +67,27 @@ _start: pushl %edx /* Push address of the shared library termination function. */ +#ifdef SHARED + /* Load PIC register. */ + call 1f + addl $_GLOBAL_OFFSET_TABLE_, %ebx + + /* Push address of our own entry points to .fini and .init. */ + leal __libc_csu_fini@GOTOFF(%ebx), %eax + pushl %eax + leal __libc_csu_init@GOTOFF(%ebx), %eax + pushl %eax + + pushl %ecx /* Push second argument: argv. */ + pushl %esi /* Push first argument: argc. */ + + leal BP_SYM (main)@GOTOFF(%ebx), %eax + pushl %eax + + /* Call the user's main function, and exit with its value. + But let the libc call main. */ + call BP_SYM (__libc_start_main)@PLT +#else /* Push address of our own entry points to .fini and .init. */ pushl $__libc_csu_fini pushl $__libc_csu_init @@ -79,9 +100,15 @@ _start: /* Call the user's main function, and exit with its value. But let the libc call main. */ call BP_SYM (__libc_start_main) +#endif hlt /* Crash if somehow `exit' does return. */ +#ifdef SHARED +1: movl (%esp), %ebx + ret +#endif + /* To fulfill the System V/i386 ABI we need this symbol. Yuck, it's so meaningless since we don't support machines < 80386. */ .section .rodata |