| /* Startup code for programs linked with GNU libc. PowerPC64 version. |
| Copyright (C) 1998-2014 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> |
| |
| /* We do not want .eh_frame info for crt1.o since crt1.o is linked |
| before crtbegin.o, the file defining __EH_FRAME_BEGIN__. */ |
| #undef cfi_startproc |
| #define cfi_startproc |
| #undef cfi_endproc |
| #define cfi_endproc |
| |
| /* 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 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@toc(r2) |
| |
| /* and continue in libc-start, in glibc. */ |
| b JUMPTARGET(__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) |
