2002-09-17 23:50:03 +00:00
|
|
|
/* Startup code for programs linked with GNU libc. PowerPC64 version.
|
2009-04-14 20:57:18 +00:00
|
|
|
Copyright (C) 1998,1999,2000,2001,2002,2003,2009
|
|
|
|
|
Free Software Foundation, Inc.
|
2002-09-17 23:50:03 +00:00
|
|
|
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.
|
|
|
|
|
|
2004-08-16 04:51:23 +00:00
|
|
|
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.
|
|
|
|
|
|
2002-09-17 23:50:03 +00:00
|
|
|
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, write to the Free
|
|
|
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
|
|
|
02111-1307 USA. */
|
|
|
|
|
|
|
|
|
|
#include <sysdep.h>
|
|
|
|
|
#include "bp-sym.h"
|
|
|
|
|
|
|
|
|
|
/* These are the various addresses we require. */
|
2003-07-08 03:49:44 +00:00
|
|
|
#ifdef PIC
|
2003-07-10 17:07:16 +00:00
|
|
|
.section ".data.rel.ro.local","aw"
|
2003-07-08 03:49:44 +00:00
|
|
|
#else
|
2002-09-17 23:50:03 +00:00
|
|
|
.section ".rodata"
|
2003-07-08 03:49:44 +00:00
|
|
|
#endif
|
2002-09-17 23:50:03 +00:00
|
|
|
.align 3
|
|
|
|
|
L(start_addresses):
|
|
|
|
|
.quad 0 /* was _SDA_BASE_ but not in 64-bit ABI*/
|
|
|
|
|
/* function descriptors so don't need JUMPTARGET */
|
2002-12-09 20:37:37 +00:00
|
|
|
.quad BP_SYM(main)
|
|
|
|
|
.quad __libc_csu_init
|
|
|
|
|
.quad __libc_csu_fini
|
2002-09-17 23:50:03 +00:00
|
|
|
|
|
|
|
|
ASM_SIZE_DIRECTIVE(L(start_addresses))
|
|
|
|
|
|
|
|
|
|
.section ".toc","aw"
|
|
|
|
|
.L01:
|
|
|
|
|
.tc L(start_addresses)[TC],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. */
|
|
|
|
|
clrrdi r1,r1,4
|
|
|
|
|
li r0,0
|
|
|
|
|
stdu r1,-128(r1)
|
|
|
|
|
mtlr r0
|
|
|
|
|
std r0,0(r1)
|
|
|
|
|
|
|
|
|
|
/* put the address of start_addresses in r8... **
|
|
|
|
|
** PPC64 ABI uses R13 for thread local, so we leave it alone */
|
|
|
|
|
ld r8,.L01(r2)
|
|
|
|
|
|
|
|
|
|
/* and continue in libc-start, in glibc. */
|
2002-12-09 20:37:37 +00:00
|
|
|
b JUMPTARGET(BP_SYM(__libc_start_main))
|
2003-08-16 18:19:50 +00:00
|
|
|
/* The linker needs this nop to recognize that it's OK to call via a
|
|
|
|
|
TOC adjusting stub. */
|
|
|
|
|
nop
|
2002-09-17 23:50:03 +00:00
|
|
|
|
|
|
|
|
END(_start)
|
|
|
|
|
|
|
|
|
|
/* Define a symbol for the first piece of initialized data. */
|
|
|
|
|
.section ".data"
|
|
|
|
|
.globl __data_start
|
|
|
|
|
__data_start:
|
2009-04-14 20:57:18 +00:00
|
|
|
.long 0
|
2002-09-17 23:50:03 +00:00
|
|
|
weak_alias (__data_start, data_start)
|
