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https://codeberg.org/ziglang/zig.git
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Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
70 lines
2.4 KiB
C
Vendored
70 lines
2.4 KiB
C
Vendored
/* $OpenBSD: profile.h,v 1.1 2020/06/25 01:55:14 drahn Exp $ */
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/*
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* Copyright (c) 2020 Dale Rahn drahn@openbsd.org
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* mcount frame size skips over the red zone (288B) (calling function may use)
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* and 128 bytes of local storage (32 bytes of reserved and 96 of our storage
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* this function assumes it will only every call the local __mcount function
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*/
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#define MCOUNT \
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__asm__(" \n"\
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" .section \".text\" \n"\
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" .p2align 2 \n"\
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" .globl _mcount \n"\
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" .local __mcount \n"\
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" .type _mcount,@function \n"\
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"_mcount: \n"\
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".L_mcount_gep0: \n"\
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" addis %r2, %r12, .TOC.-.L_mcount_gep0@ha; \n"\
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" addi %r2, %r2, .TOC.-.L_mcount_gep0@l; \n"\
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".L_mcount_lep0: \n"\
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".localentry _mcount, .L_mcount_lep0-.L_mcount_gep0; \n"\
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" ld %r11,16(%r1) \n"\
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" mflr %r0 \n"\
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" std %r0, 16(%r1) \n"\
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" stdu %r1,-(288+128)(%r1) \n"\
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" std %r3, 32(%r1) \n"\
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" std %r4, 40(%r1) \n"\
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" std %r5, 48(%r1) \n"\
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" std %r6, 56(%r1) \n"\
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" std %r7, 64(%r1) \n"\
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" std %r8, 72(%r1) \n"\
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" std %r9, 80(%r1) \n"\
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" std %r10,88(%r1) \n"\
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" std %r11,96(%r1) \n"\
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" mr %r4, %r0 \n"\
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" mr %r3, %r11 \n"\
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" bl __mcount \n"\
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" nop \n"\
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" ld %r3, 32(%r1) \n"\
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" ld %r4, 40(%r1) \n"\
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" ld %r5, 48(%r1) \n"\
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" ld %r6, 56(%r1) \n"\
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" ld %r7, 64(%r1) \n"\
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" ld %r8, 72(%r1) \n"\
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" ld %r9, 80(%r1) \n"\
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" ld %r10,88(%r1) \n"\
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" ld %r11,96(%r1) \n"\
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" addi %r1, %r1, (288+128) \n"\
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" ld %r0, 16(%r1) \n"\
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" std %r11,16(%r1) \n"\
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" mtlr %r0 \n"\
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" blr \n"\
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" .size _mcount, .-_mcount \n"\
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);
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#define _MCOUNT_DECL static void __mcount |