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[PATCH] powerpc: add crt files
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: libc-alpha at sourceware dot org
- Date: Wed, 08 Feb 2012 18:31:07 +0100
- Subject: [PATCH] powerpc: add crt files
2012-02-08 Andreas Schwab <schwab@linux-m68k.org>
* sysdeps/powerpc/powerpc32/crti.S: New file.
* sysdeps/powerpc/powerpc32/crtn.S: New file.
* sysdeps/powerpc/powerpc64/crti.S: New file.
* sysdeps/powerpc/powerpc64/crtn.S: New file.
diff --git a/sysdeps/powerpc/powerpc32/crti.S b/sysdeps/powerpc/powerpc32/crti.S
new file mode 100644
index 0000000..72e9cf4
--- /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 0000000..af690c1
--- /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 0000000..bce256d
--- /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 0000000..52d46b3
--- /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
--
1.7.9
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."