/* Startup code for programs linked with GNU libc. PowerPC64 version. Copyright (C) 1998,1999,2000,2001,2002,2003,2009 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #include "bp-sym.h" /* These are the various addresses we require. */ #ifdef PIC .section ".data.rel.ro.local","aw" #else .section ".rodata" #endif .align 3 L(start_addresses): .quad 0 /* was _SDA_BASE_ but not in 64-bit ABI*/ /* function descriptors so don't need JUMPTARGET */ .quad BP_SYM(main) .quad __libc_csu_init .quad __libc_csu_fini 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. */ b JUMPTARGET(BP_SYM(__libc_start_main)) /* The linker needs this nop to recognize that it's OK to call via a TOC adjusting stub. */ nop 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)