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* sysdeps/sparc/sparc32/elf.S: Rewrite for __libc_start_main. * sysdeps/sparc/sparc64/elf.S: Likewise. 1998-04-06 Richard Henderson <rth@cygnus.com>
61 lines
1.9 KiB
ArmAsm
61 lines
1.9 KiB
ArmAsm
/* Startup code for elf32-sparc
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Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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.section ".text"
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.align 4
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.global _start
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.type _start,#function
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_start:
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/* Terminate the stack frame, and reserve space for functions to
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drop their arguments. */
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mov %g0, %fp
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sub %sp, 6*4, %sp
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/* Extract the arguments and environment as encoded on the stack. The
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argument info starts after one register window (16 words) past the SP. */
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ld [%sp+22*4], %o1
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add %sp, 23*4, %o2
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/* Load the addresses of the user entry points. */
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sethi %hi(main), %o0
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sethi %hi(_init), %o3
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sethi %hi(_fini), %o4
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or %o0, %lo(main), %o0
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or %o3, %lo(_init), %o3
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or %o4, %lo(_fini), %o4
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/* When starting a binary via the dynamic linker, %g1 contains the
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address of the shared library termination function, which will be
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registered with atexit(). If we are statically linked, this will
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be NULL. */
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mov %g1, %o5
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/* Let libc do the rest of the initialization, and call main. */
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call __libc_start_main
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nop
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/* Die very horribly if exit returns. */
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unimp
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.size _start, .-_start
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