mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
451e3f73d9
- Improve serialization - Add Benchmark() API to redbean - Refactor UNIX API to be assert() friendly - Make the redbean Lua REPL print data structures - Fix recent regressions in linenoise reverse search - Add -i flag so redbean can be a language interpreter
117 lines
4.2 KiB
C
117 lines
4.2 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/bits/bits.h"
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#include "libc/calls/strace.internal.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/intrin/lockcmpxchg.h"
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#include "libc/runtime/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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#include "libc/testlib/testlib.h"
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STATIC_YOINK("__get_symbol_by_addr");
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#define MAXLEAKS 1000
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static bool once;
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static bool hasleaks;
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static noasan void CheckLeak(void *x, void *y, size_t n, void *a) {
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if (n) {
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if (IsAsan()) {
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if (__asan_get_heap_size(x)) {
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hasleaks = true;
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}
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} else {
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hasleaks = true;
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}
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}
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}
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static noasan void OnMemory(void *x, void *y, size_t n, void *a) {
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static int i;
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if (n) {
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if (MAXLEAKS) {
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if (i < MAXLEAKS) {
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++i;
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kprintf("%p %,lu bytes [dlmalloc]", x, n);
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if (IsAsan()) {
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__asan_print_trace(x);
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}
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kprintf("\n");
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} else if (i == MAXLEAKS) {
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++i;
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kprintf("etc. etc.\n");
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}
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}
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}
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}
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static noasan bool HasLeaks(void) {
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malloc_inspect_all(CheckLeak, 0);
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return hasleaks;
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}
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/**
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* Tests for memory leaks.
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*
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* This function needs to call __cxa_finalize(). Therefore any runtime
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* services that depend on malloc() cannot be used, after calling this
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* function.
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*/
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noasan void CheckForMemoryLeaks(void) {
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struct mallinfo mi;
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if (!_lockcmpxchg(&once, false, true)) {
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kprintf("CheckForMemoryLeaks() may only be called once\n");
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exit(1);
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}
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__cxa_finalize(0);
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STRACE("checking for memory leaks% m");
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if (!IsAsan()) {
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/* TODO(jart): How can we make this work without ASAN? */
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return;
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}
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malloc_trim(0);
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if (HasLeaks()) {
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mi = mallinfo();
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kprintf("\n"
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"UNFREED MEMORY\n"
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"%s\n"
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"max allocated space %,*d\n"
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"total allocated space %,*d\n"
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"total free space %,*d\n"
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"releasable space %,*d\n"
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"mmaped space %,*d\n"
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"non-mmapped space %,*d\n"
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"\n",
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__argv[0], 16l, mi.usmblks, 16l, mi.uordblks, 16l, mi.fordblks, 16l,
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mi.hblkhd, 16l, mi.keepcost, 16l, mi.arena);
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if (!IsAsan()) {
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kprintf("# NOTE: Use `make -j8 MODE=dbg` for malloc() backtraces\n");
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}
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malloc_inspect_all(OnMemory, 0);
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kprintf("\n");
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PrintMemoryIntervals(2, &_mmi);
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/* PrintSystemMappings(2); */
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/* PrintGarbage(); */
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__restorewintty();
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_Exit(78);
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}
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}
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