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/* Startup code for Alpha/ELF.
Copyright (C) 1993,1995,1996,1997,1998,2000,2001 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.
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 <asm/regdef.h>
.text
.global _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
/* Stick in a dummy reference to main(), so that if an application
* is linking when the main() function is in a static library (.a)
* we can be sure that main() actually gets linked in */
.type 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
/* Define a symbol for the first piece of initialized data. */
.data
.global __data_start
__data_start:
.long 0
.weak data_start
data_start = __data_start
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