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/* Startup code for elf32-sparc Copyright (C) 1997, 1998, 2002, 2004, 2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997. 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 <sysdep.h> .section ".text" .align 4 #ifdef SHARED .LLGETPC0: retl add %o7, %l7, %l7 #endif .global _start .type _start,#function _start: #ifdef SHARED sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7 call .LLGETPC0 add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7 #endif /* Terminate the stack frame, and reserve space for functions to drop their arguments. */ mov %g0, %fp sub %sp, 6*4, %sp /* Extract the arguments and environment as encoded on the stack. The argument info starts after one register window (16 words) past the SP. */ ld [%sp+22*4], %o1 add %sp, 23*4, %o2 /* Load the addresses of the user entry points. */ sethi %hi(main), %o0 sethi %hi(__libc_csu_init), %o3 sethi %hi(__libc_csu_fini), %o4 or %o0, %lo(main), %o0 or %o3, %lo(__libc_csu_init), %o3 or %o4, %lo(__libc_csu_fini), %o4 #ifdef SHARED ld [%l7 + %o0], %o0 ld [%l7 + %o3], %o3 ld [%l7 + %o4], %o4 #endif /* When starting a binary via the dynamic linker, %g1 contains the address of the shared library termination function, which will be registered with atexit(). If we are statically linked, this will be NULL. */ mov %g1, %o5 /* Let libc do the rest of the initialization, and call main. */ call __libc_start_main nop /* Die very horribly if exit returns. */ unimp .size _start, .-_start /* Define a symbol for the first piece of initialized data. */ .data .globl __data_start __data_start: .long 0 weak_alias (__data_start, data_start)
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