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author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/mips/mips64/n32/crti.S | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) | |
download | glibc-2.16.90.tar.gz glibc-2.16.90.tar.xz glibc-2.16.90.zip |
Merge glibc-ports into ports/ directory. glibc-2.16.90 glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/mips/mips64/n32/crti.S')
-rw-r--r-- | ports/sysdeps/mips/mips64/n32/crti.S | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/ports/sysdeps/mips/mips64/n32/crti.S b/ports/sysdeps/mips/mips64/n32/crti.S new file mode 100644 index 0000000000..6eb53f15e9 --- /dev/null +++ b/ports/sysdeps/mips/mips64/n32/crti.S @@ -0,0 +1,91 @@ +/* Special .init and .fini section support for MIPS (n32). + Copyright (C) 1995-2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, see + <http://www.gnu.org/licenses/>. */ + +/* crti.S puts a function prologue at the beginning of the .init and + .fini sections and defines global symbols for those addresses, so + they can be called as functions. The symbols _init and _fini are + magic and cause the linker to emit DT_INIT and DT_FINI. */ + +#include <libc-symbols.h> + +#ifndef PREINIT_FUNCTION +# define PREINIT_FUNCTION __gmon_start__ +#endif + +#ifndef PREINIT_FUNCTION_WEAK +# define PREINIT_FUNCTION_WEAK 1 +#endif + +#if PREINIT_FUNCTION_WEAK + weak_extern (PREINIT_FUNCTION) +#else + .hidden PREINIT_FUNCTION +#endif + + .section .init,"ax",@progbits + .p2align 2 + .globl _init + .type _init, @function +_init: + addiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_init))) + addu $28,$28,$25 + sd $31,8($sp) + addiu $28,$28,%lo(%neg(%gp_rel(_init))) +#if PREINIT_FUNCTION_WEAK + lw $2,%got_disp(PREINIT_FUNCTION)($28) + beq $2,$0,.Lno_weak_fn + lw $25,%call16(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +.Lno_weak_fn: +#else + lw $25,%got_disp(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +#endif + + .section .fini,"ax",@progbits + .p2align 2 + .globl _fini + .type _fini, @function +_fini: + addiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_fini))) + addu $28,$28,$25 + sd $31,8($sp) + addiu $28,$28,%lo(%neg(%gp_rel(_fini))) |