diff options
Diffstat (limited to 'sysdeps/powerpc/elf/start.c')
| -rw-r--r-- | sysdeps/powerpc/elf/start.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/sysdeps/powerpc/elf/start.c b/sysdeps/powerpc/elf/start.c deleted file mode 100644 index d32aeee6c7..0000000000 --- a/sysdeps/powerpc/elf/start.c +++ /dev/null @@ -1,125 +0,0 @@ -/* Startup code compliant to the ELF PowerPC ABI. - Copyright (C) 1997 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 - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This is SVR4/PPC ABI compliant, and works under Linux when - statically linked. */ - -#include <unistd.h> -#include <stdlib.h> - -/* Just a little assembler stub before gcc gets its hands on our - stack pointer... */ -asm ("\ - .section \".text\" - .align 2 - .globl _start - .type _start,@function -_start: - # save the stack pointer, in case we're statically linked under Linux - mr 8,1 - # set up an initial stack frame, and clear the LR - addi 1,1,-16 - clrrwi 1,1,4 - li 0,0 - stw 0,0(1) - mtlr 0 - # set r13 to point at the 'small data area' - lis 13,_SDA_BASE_@ha - addi 13,13,_SDA_BASE_@l - # and continue below. - b __start1 -0: - .size _start,0b-_start - # undo '.section text'. - .previous -"); - -/* Define a symbol for the first piece of initialized data. */ -int __data_start = 0; -weak_alias (__data_start, data_start) - -/* these probably should go, at least go somewhere else - (sysdeps/mach/something?). */ -void (*_mach_init_routine) (void); -void (*_thread_init_routine) (void); - -extern void __libc_init_first (int argc, char **argv, char **envp); -extern int main (int argc, char **argv, char **envp, void *auxvec); -#ifdef HAVE_INITFINI -extern void _init (void); -extern void _fini (void); -#endif - -#if 0 -/* I'd like to say this, but it causes GCC to strip the whole procedure - from the object file (this is sort of reasonable, because you've told - GCC that the procedure is unused). :-( */ -static void __start1(int argc, char **argv, char **envp, - void *auxvec, void (*exitfn) (void), - char **stack_on_entry) - __attribute__ ((unused)); - -static -#endif -void -__start1(int argc, char **argv, char **envp, - void *auxvec, void (*exitfn) (void), - char **stack_on_entry) -{ - /* the PPC SVR4 ABI says that the top thing on the stack will - be a NULL pointer, so if not we assume that we're being called - as a statically-linked program by Linux... */ - if (*stack_on_entry != NULL) - { - /* ...in which case, we have argc as the top thing on the - stack, followed by argv (NULL-terminated), envp (likewise), - and the auxilary vector. */ - argc = *(int *) stack_on_entry; - argv = stack_on_entry + 1; - envp = argv + argc + 1; - auxvec = envp; - while (*(char **) auxvec != NULL) - ++auxvec; - ++auxvec; - exitfn = NULL; - } - - if (exitfn != NULL) - atexit (exitfn); - - /* libc init routine, in case we are statically linked - (otherwise ld.so will have called it when it loaded libc, but - calling it twice doesn't hurt). */ - __libc_init_first (argc, argv, envp); - -#ifdef HAVE_INITFINI - /* ELF constructors/destructors */ - atexit (_fini); - _init (); -#endif - - /* Stuff so we can build Mach/Linux executables (like vmlinux). */ - if (_mach_init_routine != 0) - _mach_init_routine (); - if (_thread_init_routine != 0) - _thread_init_routine (); - - /* the rest of the program */ - exit (main (argc, argv, envp, auxvec)); -} |