powerpc: add crt files
* 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.
This commit is contained in:
Andreas Schwab
parent
26ecc33a02
commit
ba988fc563
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/* Special .init and .fini section support for PowerPC.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU Lesser General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file with other
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programs, and to distribute those programs without any restriction
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coming from the use of this file. (The GNU Lesser General Public
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License restrictions do apply in other respects; for example, they
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cover modification of the file, and distribution when not linked
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into another program.)
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Note that people who make modified versions of this file are not
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obligated to grant this special exception for their modified
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versions; it is their choice whether to do so. The GNU Lesser
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General Public License gives permission to release a modified
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version without this exception; this exception also makes it
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possible to release a modified version which carries forward this
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exception.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* crti.S puts a function prologue at the beginning of the .init and
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.fini sections and defines global symbols for those addresses, so
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they can be called as functions. The symbols _init and _fini are
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magic and cause the linker to emit DT_INIT and DT_FINI. */
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#include <libc-symbols.h>
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#include <sysdep.h>
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#ifndef PREINIT_FUNCTION
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# define PREINIT_FUNCTION __gmon_start__
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#endif
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#ifndef PREINIT_FUNCTION_WEAK
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# define PREINIT_FUNCTION_WEAK 1
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#endif
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#if PREINIT_FUNCTION_WEAK
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weak_extern (PREINIT_FUNCTION)
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#else
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.hidden PREINIT_FUNCTION
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#endif
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.section .init,"ax",@progbits
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.align 2
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.globl _init
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.type _init, @function
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_init:
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stwu r1, -16(r1)
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mflr r0
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stw r0, 20(r1)
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stw r30, 8(r1)
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SETUP_GOT_ACCESS (r30, .Lgot_label_i)
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addis r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@ha
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addi r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@l
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#if PREINIT_FUNCTION_WEAK
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lwz r0, PREINIT_FUNCTION@got(r30)
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cmpwi cr7, r0, 0
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beq+ cr7, 1f
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bl PREINIT_FUNCTION@plt
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1:
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#else
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bl PREINIT_FUNCTION@local
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#endif
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.section .fini,"ax",@progbits
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.align 2
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.globl _fini
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.type _fini, @function
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_fini:
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stwu r1, -16(r1)
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mflr r0
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stw r0, 20(r1)
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stw r30, 8(r1)
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SETUP_GOT_ACCESS (r30, .Lgot_label_f)
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@ -0,0 +1,54 @@
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/* Special .init and .fini section support for PowerPC.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU Lesser General Public
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License, the Free Software Foundation gives you unlimited
|
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permission to link the compiled version of this file with other
|
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programs, and to distribute those programs without any restriction
|
||||
coming from the use of this file. (The GNU Lesser General Public
|
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License restrictions do apply in other respects; for example, they
|
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cover modification of the file, and distribution when not linked
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into another program.)
|
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Note that people who make modified versions of this file are not
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obligated to grant this special exception for their modified
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versions; it is their choice whether to do so. The GNU Lesser
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General Public License gives permission to release a modified
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version without this exception; this exception also makes it
|
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possible to release a modified version which carries forward this
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exception.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* crtn.S puts function epilogues in the .init and .fini sections
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corresponding to the prologues in crti.S. */
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#include <sysdep.h>
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.section .init,"ax",@progbits
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lwz r0, 20(r1)
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mtlr r0
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lwz r30, 8(r1)
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addi r1, r1, 16
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blr
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.section .fini,"ax",@progbits
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lwz r0, 20(r1)
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mtlr r0
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lwz r30, 8(r1)
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addi r1, r1, 16
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blr
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@ -0,0 +1,107 @@
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/* Special .init and .fini section support for PowerPC64.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU Lesser General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file with other
|
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programs, and to distribute those programs without any restriction
|
||||
coming from the use of this file. (The GNU Lesser General Public
|
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License restrictions do apply in other respects; for example, they
|
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cover modification of the file, and distribution when not linked
|
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into another program.)
|
||||
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Note that people who make modified versions of this file are not
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obligated to grant this special exception for their modified
|
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versions; it is their choice whether to do so. The GNU Lesser
|
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General Public License gives permission to release a modified
|
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version without this exception; this exception also makes it
|
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possible to release a modified version which carries forward this
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||||
exception.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* crti.S puts a function prologue at the beginning of the .init and
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.fini sections and defines global symbols for those addresses, so
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they can be called as functions. The symbols _init and _fini are
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magic and cause the linker to emit DT_INIT and DT_FINI. */
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#include <libc-symbols.h>
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#include <sysdep.h>
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#ifndef PREINIT_FUNCTION
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# define PREINIT_FUNCTION __gmon_start__
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#endif
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#ifndef PREINIT_FUNCTION_WEAK
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# define PREINIT_FUNCTION_WEAK 1
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#endif
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#if PREINIT_FUNCTION_WEAK
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weak_extern (PREINIT_FUNCTION)
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#else
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.hidden PREINIT_FUNCTION
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#endif
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#if PREINIT_FUNCTION_WEAK
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.section ".toc", "aw"
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.LC0:
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.tc PREINIT_FUNCTION[TC], PREINIT_FUNCTION
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#endif
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.type BODY_LABEL (_init), @function
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.globl _init
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.section ".opd", "aw"
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.align 3
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_init: OPD_ENT (_init)
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#ifdef HAVE_ASM_GLOBAL_DOT_NAME
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.globl BODY_LABEL (_init)
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.size _init, 24
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#else
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.type _init, @function
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#endif
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.section ".init", "ax", @progbits
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.align ALIGNARG (2)
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BODY_LABEL (_init):
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mflr 0
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std 0, 16(r1)
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stdu r1, -112(r1)
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#if PREINIT_FUNCTION_WEAK
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addis r9, r2, .LC0@toc@ha
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ld r0, .LC0@toc@l(r9)
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cmpdi cr7, r0, 0
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beq+ cr7, 1f
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#endif
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bl JUMPTARGET (PREINIT_FUNCTION)
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nop
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1:
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.type BODY_LABEL (_fini), @function
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.globl _fini
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.section ".opd", "aw"
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.align 3
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_fini: OPD_ENT (_fini)
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#ifdef HAVE_ASM_GLOBAL_DOT_NAME
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.globl BODY_LABEL (_fini)
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.size _fini, 24
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#else
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.type _fini, @function
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#endif
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.section ".fini", "ax", @progbits
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.align ALIGNARG (2)
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BODY_LABEL (_fini):
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mflr 0
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std 0, 16(r1)
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stdu r1, -112(r1)
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@ -0,0 +1,52 @@
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/* Special .init and .fini section support for PowerPC64.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
|
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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
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||||
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
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
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02111-1307 USA. */
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/* crtn.S puts function epilogues in the .init and .fini sections
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corresponding to the prologues in crti.S. */
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#include <sysdep.h>
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.section .init,"ax",@progbits
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addi r1, r1, 112
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ld r0, 16(r1)
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mtlr r0
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blr
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.section .fini,"ax",@progbits
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addi r1, r1, 112
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ld r0, 16(r1)
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mtlr r0
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blr
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