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https://github.com/jart/cosmopolitan.git
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f24c854b28
This change adds tests for the new memory manager code particularly with its windows support. Function call tracing now works reliably on Silicon since our function hooker was missing new Apple self-modifying code APIs Many tests that were disabled a long time ago on aarch64 are reactivated by this change, now that arm support is on equal terms with x86. There's been a lot of places where ftrace could cause deadlocks, which have been hunted down across all platforms thanks to new tests. A bug in Windows's kill() function has been identified.
74 lines
3.8 KiB
C
74 lines
3.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2024 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/assert.h"
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#include "libc/calls/calls.h"
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#include "libc/mem/mem.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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// make sure that running `popen_test --ftrace --strace` doesn't crash
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//
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// function and system call tracing are invasive runtime features that
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// can easily break if interrupting the other magical, deeply embedded
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// parts of the runtime, like mutations to the rbtree ftrace needs for
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// validating stack pointers (kisdangerous() locks the mmap lock), and
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// that's why we use dontinstrument in so many places in the codebase.
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//
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// we like popen_test because it tests the intersection of forking and
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// threads, and it activates other subsystems like the signal / itimer
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// worker threads on windows. if we can ftrace and strace it, then you
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// can be assured cosmo's tracing support works right on all platforms
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void SetUpOnce(void) {
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testlib_enable_tmp_setup_teardown();
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}
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TEST(trace, test) {
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unsetenv("MAKEFLAGS"); // avoid testmain.c 254 status
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testlib_extract("/zip/popen_test", "popen_test", 0755);
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testlib_extract("/zip/popen_test.dbg", "popen_test.dbg", 0755);
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if (!fork()) {
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close(1);
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close(2);
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open("log", O_CREAT | O_TRUNC | O_WRONLY | O_APPEND, 0644);
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dup(1);
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execl("./popen_test", "./popen_test", "--ftrace", "--strace", NULL);
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_Exit(128);
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}
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int ws;
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unassert(wait(&ws));
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if (WIFSIGNALED(ws)) {
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fprintf(stderr,
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"%s:%d: error: trace_test got %s signal running "
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"popen_test --strace --ftrace (see %s for output)\n",
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__FILE__, __LINE__, strsignal(WTERMSIG(ws)), realpath("log", 0));
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_Exit(1);
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}
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if (WEXITSTATUS(ws)) {
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fprintf(stderr,
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"%s:%d: error: trace_test got %d exit status running "
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"popen_test --strace --ftrace (see %s for output)\n",
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__FILE__, __LINE__, WEXITSTATUS(ws), realpath("log", 0));
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_Exit(1);
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}
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}
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