mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-19 09:20:07 +00:00
7a2b3e0dcd
* sysdeps/powerpc/powerpc32/elf/bzero.S: Moved to ... * sysdeps/powerpc/powerpc32/bzero.S: ... here. * sysdeps/powerpc/powerpc32/elf/start.S: Moved to ... * sysdeps/powerpc/powerpc32/start.S: ... here. * sysdeps/powerpc/powerpc32/elf/configure.in: Merge into ... * sysdeps/powerpc/powerpc32/configure.in: ... this. * sysdeps/powerpc/powerpc32/elf/configure: Delete file.
91 lines
3.1 KiB
ArmAsm
91 lines
3.1 KiB
ArmAsm
/* Startup code for programs linked with GNU libc.
|
|
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2009, 2011
|
|
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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
In addition to the permissions in the GNU Lesser General Public
|
|
License, the Free Software Foundation gives you unlimited
|
|
permission to link the compiled version of this file with other
|
|
programs, and to distribute those programs without any restriction
|
|
coming from the use of this file. (The GNU Lesser General Public
|
|
License restrictions do apply in other respects; for example, they
|
|
cover modification of the file, and distribution when not linked
|
|
into another program.)
|
|
|
|
Note that people who make modified versions of this file are not
|
|
obligated to grant this special exception for their modified
|
|
versions; it is their choice whether to do so. The GNU Lesser
|
|
General Public License gives permission to release a modified
|
|
version without this exception; this exception also makes it
|
|
possible to release a modified version which carries forward this
|
|
exception.
|
|
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
#include "bp-sym.h"
|
|
|
|
/* These are the various addresses we require. */
|
|
#ifdef PIC
|
|
.section ".data"
|
|
#else
|
|
.section ".rodata"
|
|
#endif
|
|
.align 2
|
|
L(start_addresses):
|
|
.long _SDA_BASE_
|
|
.long BP_SYM (main)
|
|
.long __libc_csu_init
|
|
.long __libc_csu_fini
|
|
ASM_SIZE_DIRECTIVE(L(start_addresses))
|
|
|
|
.section ".text"
|
|
ENTRY(_start)
|
|
/* Save the stack pointer, in case we're statically linked under Linux. */
|
|
mr r9,r1
|
|
/* Set up an initial stack frame, and clear the LR. */
|
|
clrrwi r1,r1,4
|
|
#ifdef PIC
|
|
SETUP_GOT_ACCESS(r13,got_label)
|
|
li r0,0
|
|
#else
|
|
li r0,0
|
|
#endif
|
|
stwu r1,-16(r1)
|
|
mtlr r0
|
|
stw r0,0(r1)
|
|
/* Set r13 to point at the 'small data area', and put the address of
|
|
start_addresses in r8. Also load the GOT pointer so that new PLT
|
|
calls work, like the one to __libc_start_main. */
|
|
#ifdef PIC
|
|
addis r30,r13,_GLOBAL_OFFSET_TABLE_-got_label@ha
|
|
addis r8,r13,L(start_addresses)-got_label@ha
|
|
addi r30,r30,_GLOBAL_OFFSET_TABLE_-got_label@l
|
|
lwzu r13, L(start_addresses)-got_label@l(r8)
|
|
#else
|
|
lis r8,L(start_addresses)@ha
|
|
lwzu r13,L(start_addresses)@l(r8)
|
|
#endif
|
|
/* and continue in libc-start, in glibc. */
|
|
b JUMPTARGET(BP_SYM (__libc_start_main))
|
|
END(_start)
|
|
|
|
/* Define a symbol for the first piece of initialized data. */
|
|
.section ".data"
|
|
.globl __data_start
|
|
__data_start:
|
|
.long 0
|
|
weak_alias (__data_start, data_start)
|