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Diffstat (limited to 'ports/sysdeps/hppa/crti.S')
-rw-r--r-- | ports/sysdeps/hppa/crti.S | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/ports/sysdeps/hppa/crti.S b/ports/sysdeps/hppa/crti.S new file mode 100644 index 0000000000..4bb81bcacd --- /dev/null +++ b/ports/sysdeps/hppa/crti.S @@ -0,0 +1,80 @@ +/* Special .init and .fini section support for HPPA + Copyright (C) 2000-2012 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> +#include <sysdep.h> + +#ifndef PREINIT_FUNCTION +# define PREINIT_FUNCTION __gmon_start__ +#endif + +#ifndef PREINIT_FUNCTION_WEAK +# define PREINIT_FUNCTION_WEAK 1 +#endif + +/* _init prologue. */ + .section .init, "ax", %progbits + .align 4 + .globl _init + .type _init,@function +_init: + stw %rp,-20(%sp) + stwm %r4,64(%sp) + stw %r19,-32(%sp) +#if PREINIT_FUNCTION_WEAK + bl PREINIT_FUNCTION,%rp + copy %r19,%r4 /* delay slot */ +#else + bl PREINIT_FUNCTION,%rp + copy %r19,%r4 /* delay slot */ +#endif + copy %r4,%r19 + +/* _fini prologue. */ + .section .fini,"ax",%progbits + .align 4 + .globl _fini + .type _fini,@function +_fini: + stw %rp,-20(%sp) + stwm %r4,64(%sp) + stw %r19,-32(%sp) + copy %r19,%r4 + |