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a745f3f26d
* sysdeps/unix/sysv/linux/mips/init-first.h: New file, from Ralf Baechle <ralf@gnu.org>. * sysdeps/unix/sysv/linux/mips/brk.c: New file.
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/* Prepare arguments for library initialization function.
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Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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/* The job of this fragment it to find argc and friends for INIT.
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This is done in one of two ways: either in the stack context
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of program start, or having dlopen pass them in. */
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#define SYSDEP_CALL_INIT(NAME, INIT) \
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asm(".weak _dl_starting_up\n\t" \
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".globl " #NAME "\n\t" \
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".ent " #NAME "\n" \
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#NAME ":\n\t" \
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".set noreorder\n\t" \
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".cpload $25\n\t" \
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".set reorder\n\t" \
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/* Are we a dynamic libc being loaded into a static program? */ \
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"la $8, _dl_starting_up\n\t" \
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"beqz $8, 1f\n\t" \
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"lw $8, 0($8)\n\t" \
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"seq $8, $8, 0\n" \
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"1:\t" \
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"sw $8, __libc_multiple_libcs\n\t" \
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/* If so, argc et al are in a0-a2 already. Otherwise, load them. */ \
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"bnez $8, 2f\n\t" \
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"lw $4, 16($29)\n\t" \
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"addiu $5, $29, 20\n\t" \
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"sll $6, $4, 2\n\t" \
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"addiu $6, $6, 4\n\t" \
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"addu $6, $5, $6\n" \
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"2:\t" \
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"la $25, " #INIT "\n\t" \
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"jr $25\n\t" \
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".end " #NAME "\n\t" \
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"3:\t" \
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".size " #NAME ", 3b-" #NAME);
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