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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/config/arm/crti.asm
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Diffstat (limited to 'gcc/config/arm/crti.asm')
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diff --git a/gcc/config/arm/crti.asm b/gcc/config/arm/crti.asm
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+++ b/gcc/config/arm/crti.asm
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+# Copyright (C) 2001, 2008, 2009, 2010 Free Software Foundation, Inc.
+# Written By Nick Clifton
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 3, or (at your option) any
+# later version.
+#
+# This file 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
+# General Public License for more details.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+# <http://www.gnu.org/licenses/>.
+
+/* An executable stack is *not* required for these functions. */
+#if defined(__ELF__) && defined(__linux__)
+.section .note.GNU-stack,"",%progbits
+.previous
+#endif
+
+# This file just make a stack frame for the contents of the .fini and
+# .init sections. Users may put any desired instructions in those
+# sections.
+
+#ifdef __ELF__
+#define TYPE(x) .type x,function
+#else
+#define TYPE(x)
+#endif
+#ifdef __ARM_EABI__
+/* Some attributes that are common to all routines in this file. */
+ /* Tag_ABI_align_needed: This code does not require 8-byte
+ alignment from the caller. */
+ /* .eabi_attribute 24, 0 -- default setting. */
+ /* Tag_ABI_align_preserved: This code preserves 8-byte
+ alignment in any callee. */
+ .eabi_attribute 25, 1
+#endif /* __ARM_EABI__ */
+
+ # Note - this macro is complemented by the FUNC_END macro
+ # in crtn.asm. If you change this macro you must also change
+ # that macro match.
+.macro FUNC_START
+#ifdef __thumb__
+ .thumb
+
+ push {r3, r4, r5, r6, r7, lr}
+#else
+ .arm
+ # Create a stack frame and save any call-preserved registers
+ mov ip, sp
+ stmdb sp!, {r3, r4, r5, r6, r7, r8, r9, sl, fp, ip, lr, pc}
+ sub fp, ip, #4
+#endif
+.endm
+
+ .section ".init"
+ .align 2
+ .global _init
+#ifdef __thumb__
+ .thumb_func
+#endif
+ TYPE(_init)
+_init:
+ FUNC_START
+
+
+ .section ".fini"
+ .align 2
+ .global _fini
+#ifdef __thumb__
+ .thumb_func
+#endif
+ TYPE(_fini)
+_fini:
+ FUNC_START
+
+# end of crti.asm