3fe733f375
Since we had a .set reorder, the nop after the "jal" was being placed after the delay slot, resulting in two nops. While changing this code also guard the .set noreorder with .set push/pop and use $zero as the cpsetup save register since we don't need to save $gp. Reviewed By: jhb Differential Revision: https://reviews.freebsd.org/D25025
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-1-Clause
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*
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* Copyright 2018 Andrew Turner
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _CRT_H_
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#define _CRT_H_
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#define HAVE_CTORS
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#define CTORS_CONSTRUCTORS
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#ifdef __mips_o32
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#define INIT_CALL_SEQ(func) \
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".set push \n" \
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".set noreorder \n" \
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"bal 1f \n" \
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"nop \n" \
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"1: \n" \
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".cpload $ra \n" \
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"addu $sp, $sp, -8 \n" \
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".cprestore 4 \n" \
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".local " __STRING(func) "\n" \
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"jal " __STRING(func) "\n" \
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"nop \n" \
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"addu $sp, $sp, 8 \n" \
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".set pop\n"
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#else
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#define INIT_CALL_SEQ(func) \
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".set push \n" \
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".set noreorder \n" \
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"bal 1f \n" \
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"nop \n" \
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"1: \n" \
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".cpsetup $ra, $zero, 1b \n" \
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".local " __STRING(func) "\n" \
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"jal " __STRING(func) "\n" \
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"nop \n" \
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".set pop\n"
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#endif
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#endif
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