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- /* 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
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