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freebsd-dev/lib/csu/mips/crt.h

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Build the csu tests on all architectures. The tests haven't been run them, but this is enough to build them so I can get feedback on if the various crt.h headers are correct. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-10-30 14:44:12 +00:00
/*-
* SPDX-License-Identifier: BSD-1-Clause
*
* Copyright 2018 Andrew Turner
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _CRT_H_
#define _CRT_H_
#define HAVE_CTORS
Add the (untested) mips and sparc64 .init call sequences. The BSD crtbegin/crtend code now builds on all architectures, however further work is needed to check if it works correctly. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-07 09:49:25 +00:00
#define CTORS_CONSTRUCTORS
#ifdef __mips_o32
#define INIT_CALL_SEQ(func) \
csu: Avoid additional nops in the MIPS INIT_CALL_SEQ macro 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
2020-06-05 08:46:55 +00:00
".set push \n" \
Add the (untested) mips and sparc64 .init call sequences. The BSD crtbegin/crtend code now builds on all architectures, however further work is needed to check if it works correctly. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-07 09:49:25 +00:00
".set noreorder \n" \
"bal 1f \n" \
"nop \n" \
"1: \n" \
mips: csu: fix compilation w/ LLVM GCC issues the warning, but with LLVM it is fatal- no matching .cprestore with .cpload. Reserve some place on the stack and and add the proper .cprestore to pair it with. nop added in the !o32 branch to fill out delay slot instruction, just in case. Reviewed by: arichardson Differential Revision: https://reviews.freebsd.org/D21697
2020-01-03 19:59:42 +00:00
".cpload $ra \n" \
"addu $sp, $sp, -8 \n" \
".cprestore 4 \n" \
Mark the function called by the MIPS .init/.fini sequence with .local. As with r328939 we need to mark local symbols as such. Without this the assembly parser treats the symbols as global and created relocations against these private symbols. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-23 16:33:03 +00:00
".local " __STRING(func) "\n" \
mips: csu: fix compilation w/ LLVM GCC issues the warning, but with LLVM it is fatal- no matching .cprestore with .cpload. Reserve some place on the stack and and add the proper .cprestore to pair it with. nop added in the !o32 branch to fill out delay slot instruction, just in case. Reviewed by: arichardson Differential Revision: https://reviews.freebsd.org/D21697
2020-01-03 19:59:42 +00:00
"jal " __STRING(func) "\n" \
"nop \n" \
csu: Avoid additional nops in the MIPS INIT_CALL_SEQ macro 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
2020-06-05 08:46:55 +00:00
"addu $sp, $sp, 8 \n" \
".set pop\n"
Add the (untested) mips and sparc64 .init call sequences. The BSD crtbegin/crtend code now builds on all architectures, however further work is needed to check if it works correctly. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-07 09:49:25 +00:00
#else
#define INIT_CALL_SEQ(func) \
csu: Avoid additional nops in the MIPS INIT_CALL_SEQ macro 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
2020-06-05 08:46:55 +00:00
".set push \n" \
Add the (untested) mips and sparc64 .init call sequences. The BSD crtbegin/crtend code now builds on all architectures, however further work is needed to check if it works correctly. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-07 09:49:25 +00:00
".set noreorder \n" \
"bal 1f \n" \
"nop \n" \
"1: \n" \
csu: Avoid additional nops in the MIPS INIT_CALL_SEQ macro 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
2020-06-05 08:46:55 +00:00
".cpsetup $ra, $zero, 1b \n" \
Mark the function called by the MIPS .init/.fini sequence with .local. As with r328939 we need to mark local symbols as such. Without this the assembly parser treats the symbols as global and created relocations against these private symbols. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-23 16:33:03 +00:00
".local " __STRING(func) "\n" \
mips !o32: fix csu build Pointy hat to: kevans
2020-01-03 20:01:36 +00:00
"jal " __STRING(func) "\n" \
csu: Avoid additional nops in the MIPS INIT_CALL_SEQ macro 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
2020-06-05 08:46:55 +00:00
"nop \n" \
".set pop\n"
Add the (untested) mips and sparc64 .init call sequences. The BSD crtbegin/crtend code now builds on all architectures, however further work is needed to check if it works correctly. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-11-07 09:49:25 +00:00
#endif
Build the csu tests on all architectures. The tests haven't been run them, but this is enough to build them so I can get feedback on if the various crt.h headers are correct. MFC with: r339738 Sponsored by: DARPA, AFRL
2018-10-30 14:44:12 +00:00
#endif
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