mirror of
https://github.com/jart/cosmopolitan.git
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49 lines
2.6 KiB
C
49 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above 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 │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/log/libfatal.internal.h"
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#include "libc/macros.internal.h"
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#include "libc/runtime/memtrack.internal.h"
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#include "libc/runtime/runtime.h"
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#define ADDR(x) ((int64_t)((uint64_t)(x) << 32) >> 16)
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#define UNSHADOW(x) ((int64_t)(MAX(0, (x)-0x7fff8000)) << 3)
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#define FRAME(x) ((int)((x) >> 16))
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noasan const char *DescribeFrame(int x) {
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/* asan runtime depends on this function */
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char *p;
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static char buf[128];
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if (IsShadowFrame(x)) {
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p = buf;
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p = __stpcpy(p, " shadow of ");
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p = __fixcpy(p, UNSHADOW(ADDR(x)), 48);
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return buf;
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return " shadow ";
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} else if (IsAutoFrame(x)) {
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return " automap";
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} else if (IsFixedFrame(x)) {
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return " fixed ";
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} else if (IsArenaFrame(x)) {
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return " arena ";
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} else if (IsStaticStackFrame(x)) {
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return " stack ";
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} else {
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return "";
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}
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}
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