/* Startup code for Alpha/ELF. Copyright (C) 1993, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson <rth@tamu.edu> 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 <features.h> #include <sys/regdef.h> .text .align 3 .globl _start .ent _start, 0 .type _start,@function #if defined(__UCLIBC_CTOR_DTOR__) .type _init,%function .type _fini,%function #else .weak _init .weak _fini #endif .type __uClibc_main,%function _start: .frame $15, 0, $15 br gp, 1f 1: ldgp gp, 0(gp) subq sp, 16, sp mov 0, $15 .prologue 0 /* Load address of the user's main function. */ lda a0, main ldl a1, 16(sp) /* get argc */ lda a2, 24(sp) /* get argv */ /* Load address of our own entry points to .fini and .init. */ lda a3, _init lda a4, _fini /* Store address of the shared library termination function. */ mov v0, a5 /* Provide the highest stack address to the user code. */ stq sp, 0(sp) /* Call the user's main function, and exit with its value. But let the libc call main. */ jsr ra, __uClibc_main /* Die very horribly if exit returns. Call_pal hlt is callable from kernel mode only; this will result in an illegal instruction trap. */ call_pal 0 .end _start /* For ECOFF backwards compatibility. */ /*weak_alias (_start, __start)*/ /* Define a symbol for the first piece of initialized data. */ .data .globl __data_start __data_start: .weak data_start data_start = __data_start