diff options
| -rw-r--r-- | sysdeps/powerpc/powerpc32/crti.S | 90 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/crtn.S | 54 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/crti.S | 107 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/crtn.S | 52 |
4 files changed, 303 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/crti.S b/sysdeps/powerpc/powerpc32/crti.S new file mode 100644 index 0000000000..72e9cf4ce0 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/crti.S @@ -0,0 +1,90 @@ +/* Special .init and .fini section support for PowerPC. + Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* 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 + +#if PREINIT_FUNCTION_WEAK + weak_extern (PREINIT_FUNCTION) +#else + .hidden PREINIT_FUNCTION +#endif + + .section .init,"ax",@progbits + .align 2 + .globl _init + .type _init, @function +_init: + stwu r1, -16(r1) + mflr r0 + stw r0, 20(r1) + stw r30, 8(r1) + SETUP_GOT_ACCESS (r30, .Lgot_label_i) + addis r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@ha + addi r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@l +#if PREINIT_FUNCTION_WEAK + lwz r0, PREINIT_FUNCTION@got(r30) + cmpwi cr7, r0, 0 + beq+ cr7, 1f + bl PREINIT_FUNCTION@plt +1: +#else + bl PREINIT_FUNCTION@local +#endif + + .section .fini,"ax",@progbits + .align 2 + .globl _fini + .type _fini, @function +_fini: + stwu r1, -16(r1) + mflr r0 + stw r0, 20(r1) + stw r30, 8(r1) + SETUP_GOT_ACCESS (r30, .Lgot_label_f) diff --git a/sysdeps/powerpc/powerpc32/crtn.S b/sysdeps/powerpc/powerpc32/crtn.S new file mode 100644 index 0000000000..af690c1260 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/crtn.S @@ -0,0 +1,54 @@ +/* Special .init and .fini section support for PowerPC. + Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* crtn.S puts function epilogues in the .init and .fini sections + corresponding to the prologues in crti.S. */ + +#include <sysdep.h> + + .section .init,"ax",@progbits + lwz r0, 20(r1) + mtlr r0 + lwz r30, 8(r1) + addi r1, r1, 16 + blr + + .section .fini,"ax",@progbits + lwz r0, 20(r1) + mtlr r0 + lwz r30, 8(r1) + addi r1, r1, 16 + blr diff --git a/sysdeps/powerpc/powerpc64/crti.S b/sysdeps/powerpc/powerpc64/crti.S new file mode 100644 index 0000000000..bce256d9ca --- /dev/null +++ b/sysdeps/powerpc/powerpc64/crti.S @@ -0,0 +1,107 @@ +/* Special .init and .fini section support for PowerPC64. + Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* 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 + +#if PREINIT_FUNCTION_WEAK + weak_extern (PREINIT_FUNCTION) +#else + .hidden PREINIT_FUNCTION +#endif + +#if PREINIT_FUNCTION_WEAK + .section ".toc", "aw" +.LC0: + .tc PREINIT_FUNCTION[TC], PREINIT_FUNCTION +#endif + .type BODY_LABEL (_init), @function + .globl _init + .section ".opd", "aw" + .align 3 +_init: OPD_ENT (_init) +#ifdef HAVE_ASM_GLOBAL_DOT_NAME + .globl BODY_LABEL (_init) + .size _init, 24 +#else + .type _init, @function +#endif + .section ".init", "ax", @progbits + .align ALIGNARG (2) +BODY_LABEL (_init): + mflr 0 + std 0, 16(r1) + stdu r1, -112(r1) +#if PREINIT_FUNCTION_WEAK + addis r9, r2, .LC0@toc@ha + ld r0, .LC0@toc@l(r9) + cmpdi cr7, r0, 0 + beq+ cr7, 1f +#endif + bl JUMPTARGET (PREINIT_FUNCTION) + nop +1: + + .type BODY_LABEL (_fini), @function + .globl _fini + .section ".opd", "aw" + .align 3 +_fini: OPD_ENT (_fini) +#ifdef HAVE_ASM_GLOBAL_DOT_NAME + .globl BODY_LABEL (_fini) + .size _fini, 24 +#else + .type _fini, @function +#endif + .section ".fini", "ax", @progbits + .align ALIGNARG (2) +BODY_LABEL (_fini): + mflr 0 + std 0, 16(r1) + stdu r1, -112(r1) diff --git a/sysdeps/powerpc/powerpc64/crtn.S b/sysdeps/powerpc/powerpc64/crtn.S new file mode 100644 index 0000000000..52d46b3364 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/crtn.S @@ -0,0 +1,52 @@ +/* Special .init and .fini section support for PowerPC64. + Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* crtn.S puts function epilogues in the .init and .fini sections + corresponding to the prologues in crti.S. */ + +#include <sysdep.h> + + .section .init,"ax",@progbits + addi r1, r1, 112 + ld r0, 16(r1) + mtlr r0 + blr + + .section .fini,"ax",@progbits + addi r1, r1, 112 + ld r0, 16(r1) + mtlr r0 + blr |