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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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