/* Special .init and .fini section support for HPPA Copyright (C) 2000 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 Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. In addition to the permissions in the GNU Library 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 Library 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.) 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This file is compiled into assembly code which is then munged by a sed script into two files: crti.s and crtn.s. * 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. * crtn.s puts the corresponding function epilogues in the .init and .fini sections. */ /* If we use the standard C version, the linkage table pointer won't be properly preserved due to the splitting up of function prologues and epilogues. Therefore we write these in assembly to make sure they do the right thing. Note that we cannot have a weak undefined __gmon_start__, because that would require this to be PIC, and the linker is currently not able to generate a proper procedure descriptor for _init. Sad but true. Anyway, HPPA is one of those horrible architectures where making the comparison and indirect call is quite expensive (see the comment in sysdeps/generic/initfini.c). */ __asm__ (" #include \"defs.h\" /*@HEADER_ENDS*/ /*@_init_PROLOG_BEGINS*/ .section .init .align 4 .globl _init .type _init,@function .proc .callinfo _init: stw %rp,-20(%sp) stwm %r4,64(%sp) stw %r19,-32(%sp) bl __gmon_start__,%rp copy %r19,%r4 /* delay slot */ copy %r4,%r19 .align 4 .procend /*@_init_PROLOG_ENDS*/ /*@_init_EPILOG_BEGINS*/ .section .init copy %r4,%r19 ldw -84(%sp),%rp bv %r0(%rp) ldwm -64(%sp),%r4 .text .align 4 .weak __gmon_start__ .type __gmon_start__,@function .proc .callinfo __gmon_start__: bv,n %r0(%r2) .procend /*@_init_EPILOG_ENDS*/ /*@_fini_PROLOG_BEGINS*/ .section .fini .align 4 .globl _fini .type _fini,@function .proc .callinfo _fini: stw %rp,-20(%sp) stwm %r4,64(%sp) stw %r19,-32(%sp) copy %r19,%r4 .align 4 .procend /*@_fini_PROLOG_ENDS*/ /*@_fini_EPILOG_BEGINS*/ .section .fini copy %r4,%r19 ldw -84(%sp),%rp bv %r0(%rp) ldwm -64(%sp),%r4 /*@_fini_EPILOG_ENDS*/ /*@TRAILER_BEGINS*/ ");