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m68k: add crt files
This commit is contained in:
Andreas Schwab
parent
74b24e3d46
commit
06285c8785
@ -1,5 +1,8 @@
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2012-02-08 Andreas Schwab <schwab@linux-m68k.org>
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* sysdeps/m68k/crti.S: New file.
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* sysdeps/m68k/crtn.S: New file.
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* sysdeps/m68k/m680x0/sysdep.h (LOAD_GOT): Define.
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* sysdeps/m68k/coldfire/sysdep.h (LOAD_GOT): Define.
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* sysdeps/unix/sysv/linux/m68k/coldfire/m68k-helper.S: Remove.
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83
sysdeps/m68k/crti.S
Normal file
83
sysdeps/m68k/crti.S
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@ -0,0 +1,83 @@
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/* Special .init and .fini section support for m68k.
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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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link.w %fp, #0
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move.l %a5, -(%sp)
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LOAD_GOT (%a5)
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#if PREINIT_FUNCTION_WEAK
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tst.l PREINIT_FUNCTION@GOT(%a5)
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jeq 1f
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jbsr PREINIT_FUNCTION@PLTPC
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1:
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#else
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jbsr PREINIT_FUNCTION
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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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link.w %fp, #0
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move.l %a5, -(%sp)
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LOAD_GOT (%a5)
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48
sysdeps/m68k/crtn.S
Normal file
48
sysdeps/m68k/crtn.S
Normal file
@ -0,0 +1,48 @@
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/* Special .init and .fini section support for m68k.
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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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|
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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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|
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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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/* 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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.section .init,"ax",@progbits
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move.l -4(%fp), %a5
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unlk %fp
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rts
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.section .fini,"ax",@progbits
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move.l -4(%fp), %a5
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unlk %fp
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rts
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