mirror of
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.
242 lines
8.3 KiB
C
242 lines
8.3 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 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 "dsp/core/core.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/rlimit.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/directmap.h"
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#include "libc/intrin/safemacros.h"
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#include "libc/limits.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/rand.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/auxv.h"
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#include "libc/sysv/consts/map.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/prot.h"
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#include "libc/sysv/consts/rlimit.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/testlib.h"
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#include "libc/time.h"
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#include "libc/x/xsigaction.h"
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#include "libc/x/xspawn.h"
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#define MEM (64 * 1024 * 1024)
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static char tmpname[PATH_MAX];
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void OnSigxcpu(int sig) {
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ASSERT_EQ(SIGXCPU, sig);
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_Exit(0);
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}
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void OnSigxfsz(int sig) {
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unlink(tmpname);
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ASSERT_EQ(SIGXFSZ, sig);
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_Exit(0);
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}
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TEST(setrlimit, testCpuLimit) {
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int wstatus;
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struct rlimit rlim;
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struct timespec start;
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double matrices[3][3][3];
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if (IsWindows())
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return; // of course it doesn't work on windows
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if (IsXnu())
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return; // TODO(jart): it worked before
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if (IsOpenbsd())
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return; // TODO(jart): fix flake
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ASSERT_NE(-1, (wstatus = xspawn(0)));
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if (wstatus == -2) {
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ASSERT_EQ(0, xsigaction(SIGXCPU, OnSigxcpu, 0, 0, 0));
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ASSERT_EQ(0, getrlimit(RLIMIT_CPU, &rlim));
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rlim.rlim_cur = 1; // set soft limit to one second
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ASSERT_EQ(0, setrlimit(RLIMIT_CPU, &rlim));
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start = timespec_real();
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do {
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matmul3(matrices[0], matrices[1], matrices[2]);
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matmul3(matrices[0], matrices[1], matrices[2]);
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matmul3(matrices[0], matrices[1], matrices[2]);
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matmul3(matrices[0], matrices[1], matrices[2]);
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} while (timespec_sub(timespec_real(), start).tv_sec < 5);
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_Exit(1);
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}
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EXPECT_TRUE(WIFEXITED(wstatus));
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EXPECT_FALSE(WIFSIGNALED(wstatus));
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EXPECT_EQ(0, WEXITSTATUS(wstatus));
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EXPECT_EQ(0, WTERMSIG(wstatus));
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}
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TEST(setrlimit, testFileSizeLimit) {
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char junkdata[512];
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int i, fd, wstatus;
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struct rlimit rlim;
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if (IsWindows())
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return; /* of course it doesn't work on windows */
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ASSERT_NE(-1, (wstatus = xspawn(0)));
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if (wstatus == -2) {
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ASSERT_EQ(0, xsigaction(SIGXFSZ, OnSigxfsz, 0, 0, 0));
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ASSERT_EQ(0, getrlimit(RLIMIT_FSIZE, &rlim));
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rlim.rlim_cur = 1024 * 1024; /* set soft limit to one megabyte */
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ASSERT_EQ(0, setrlimit(RLIMIT_FSIZE, &rlim));
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snprintf(tmpname, sizeof(tmpname), "%s/%s.%d",
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firstnonnull(getenv("TMPDIR"), "/tmp"),
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firstnonnull(program_invocation_short_name, "unknown"), getpid());
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ASSERT_NE(-1, (fd = open(tmpname, O_RDWR | O_CREAT | O_TRUNC, 0644)));
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rngset(junkdata, 512, lemur64, -1);
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for (i = 0; i < 5 * 1024 * 1024 / 512; ++i) {
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ASSERT_EQ(512, write(fd, junkdata, 512));
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}
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close(fd);
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unlink(tmpname);
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_Exit(1);
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}
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EXPECT_TRUE(WIFEXITED(wstatus));
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EXPECT_FALSE(WIFSIGNALED(wstatus));
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EXPECT_EQ(0, WEXITSTATUS(wstatus));
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EXPECT_EQ(0, WTERMSIG(wstatus));
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}
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int SetMemoryLimit(size_t n) {
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struct rlimit rlim = {0};
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getrlimit(RLIMIT_AS, &rlim);
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rlim.rlim_cur = n;
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rlim.rlim_max = n;
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return setrlimit(RLIMIT_AS, &rlim);
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}
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TEST(setrlimit, testMemoryLimit) {
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char *p;
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bool gotsome;
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int i, wstatus;
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ASSERT_NE(-1, (wstatus = xspawn(0)));
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if (wstatus == -2) {
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ASSERT_EQ(0, SetMemoryLimit(MEM));
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for (gotsome = false, i = 0; i < (MEM * 2) / getpagesize(); ++i) {
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p = mmap(0, getpagesize(), PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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if (p != MAP_FAILED) {
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gotsome = true;
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} else {
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ASSERT_TRUE(gotsome);
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ASSERT_EQ(ENOMEM, errno);
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_Exit(0);
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}
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rngset(p, getpagesize(), lemur64, -1);
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}
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_Exit(1);
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}
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EXPECT_TRUE(WIFEXITED(wstatus));
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EXPECT_FALSE(WIFSIGNALED(wstatus));
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EXPECT_EQ(0, WEXITSTATUS(wstatus));
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EXPECT_EQ(0, WTERMSIG(wstatus));
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}
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TEST(setrlimit, testVirtualMemoryLimit) {
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char *p;
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int i, wstatus;
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ASSERT_NE(-1, (wstatus = xspawn(0)));
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if (wstatus == -2) {
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ASSERT_EQ(0, setrlimit(RLIMIT_AS, &(struct rlimit){MEM, MEM}));
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for (i = 0; i < (MEM * 2) / getpagesize(); ++i) {
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if ((p = mmap(0, getpagesize(), PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE | MAP_POPULATE, -1, 0)) ==
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MAP_FAILED) {
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ASSERT_EQ(ENOMEM, errno);
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_Exit(0);
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}
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rngset(p, getpagesize(), lemur64, -1);
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}
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_Exit(1);
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}
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EXPECT_TRUE(WIFEXITED(wstatus));
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EXPECT_FALSE(WIFSIGNALED(wstatus));
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EXPECT_EQ(0, WEXITSTATUS(wstatus));
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EXPECT_EQ(0, WTERMSIG(wstatus));
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}
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TEST(setrlimit, testDataMemoryLimit) {
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char *p;
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int i, wstatus;
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if (IsXnu())
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return; /* doesn't work on darwin */
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if (IsNetbsd())
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return; /* doesn't work on netbsd */
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if (IsFreebsd())
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return; /* doesn't work on freebsd */
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if (IsLinux())
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return; /* doesn't work on gnu/systemd */
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if (IsWindows())
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return; /* of course it doesn't work on windows */
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ASSERT_NE(-1, (wstatus = xspawn(0)));
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if (wstatus == -2) {
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ASSERT_EQ(0, setrlimit(RLIMIT_DATA, &(struct rlimit){MEM, MEM}));
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for (i = 0; i < (MEM * 2) / getpagesize(); ++i) {
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p = sys_mmap(0, getpagesize(), PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE | MAP_POPULATE, -1, 0)
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.addr;
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if (p == MAP_FAILED) {
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ASSERT_EQ(ENOMEM, errno);
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_Exit(0);
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}
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rngset(p, getpagesize(), lemur64, -1);
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}
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_Exit(1);
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}
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EXPECT_TRUE(WIFEXITED(wstatus));
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EXPECT_FALSE(WIFSIGNALED(wstatus));
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EXPECT_EQ(0, WEXITSTATUS(wstatus));
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EXPECT_EQ(0, WTERMSIG(wstatus));
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}
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TEST(setrlimit, testPhysicalMemoryLimit) {
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/* RLIMIT_RSS doesn't work on gnu/systemd */
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/* RLIMIT_RSS doesn't work on darwin */
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/* RLIMIT_RSS doesn't work on freebsd */
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/* RLIMIT_RSS doesn't work on netbsd */
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/* RLIMIT_RSS doesn't work on openbsd */
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/* of course it doesn't work on windows */
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}
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wontreturn void OnVfork(void *ctx) {
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struct rlimit *rlim;
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rlim = ctx;
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rlim->rlim_cur -= 1;
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ASSERT_EQ(0, getrlimit(RLIMIT_CPU, rlim));
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_Exit(0);
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}
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TEST(setrlimit, isVforkSafe) {
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int ws;
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struct rlimit rlim[2];
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if (IsWindows())
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return; /* of course it doesn't work on windows */
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ASSERT_EQ(0, getrlimit(RLIMIT_CPU, rlim));
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ASSERT_NE(-1, (ws = xvspawn(OnVfork, rlim, 0)));
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EXPECT_TRUE(WIFEXITED(ws));
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EXPECT_FALSE(WIFSIGNALED(ws));
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EXPECT_EQ(0, WEXITSTATUS(ws));
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EXPECT_EQ(0, WTERMSIG(ws));
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ASSERT_EQ(0, getrlimit(RLIMIT_CPU, rlim + 1));
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EXPECT_EQ(rlim[0].rlim_cur, rlim[1].rlim_cur);
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EXPECT_EQ(rlim[0].rlim_max, rlim[1].rlim_max);
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}
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