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Fix some issues and do some code cleanup

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This commit is contained in:
Justine Tunney 2022-05-23 10:15:53 -07:00
parent 1f229e4efc
commit 312ed5c67c
72 changed files with 880 additions and 982 deletions
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21
test/libc/intrin/asan_test.c
View file

@ -46,6 +46,27 @@ TEST(asan, test) {
EXPECT_FALSE(__asan_is_valid(p, 64 + 4));
EXPECT_TRUE(__asan_is_valid(p + 1, 64 + 2));
EXPECT_FALSE(__asan_is_valid(p + 1, 64 + 3));
EXPECT_FALSE(__asan_is_valid(p - 1, 64));
}
TEST(asan, test2) {
char *p;
if (!IsAsan()) return;
p = gc(memalign(16, 64));
// asan design precludes this kind of poisoning
__asan_poison(p + 1, 1, kAsanProtected);
EXPECT_TRUE(__asan_is_valid(p, 2));
EXPECT_TRUE(__asan_is_valid(p + 1, 2));
// but we can do this
__asan_poison(p + 7, 1, kAsanProtected);
EXPECT_TRUE(__asan_is_valid(p + 6, 1));
EXPECT_FALSE(__asan_is_valid(p + 7, 1));
EXPECT_TRUE(__asan_is_valid(p + 8, 1));
EXPECT_FALSE(__asan_is_valid(p + 6, 2));
EXPECT_FALSE(__asan_is_valid(p + 7, 2));
EXPECT_FALSE(__asan_is_valid(p + 6, 3));
__asan_unpoison(p + 7, 1);
EXPECT_TRUE(__asan_is_valid(p + 6, 3));
}
TEST(asan, testEmptySize_isAlwaysValid) {

37
test/libc/intrin/gettid_test.c
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@ -0,0 +1,37 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
char tib[64];
TEST(gettid, test) {
if (IsLinux()) EXPECT_EQ(getpid(), gettid());
if (IsNetbsd()) EXPECT_EQ(1, gettid());
}
BENCH(gettid, bench) {
int gettid_(void) asm("gettid");
EZBENCH2("gettid (single threaded)", donothing, gettid());
__install_tls(__initialize_tls(tib));
EZBENCH2("gettid (tls enabled)", donothing, gettid());
}

2
test/libc/intrin/tls_test.c
View file

@ -28,6 +28,8 @@ TEST(tls, test) {
EXPECT_EQ(31337, errno);
EXPECT_EQ(&__errno, __errno_location());
__initialize_tls(tib);
*(int *)((char *)tib + 0x38) = gettid();
*(int *)((char *)tib + 0x3c) = __errno;
__install_tls(tib);
EXPECT_EQ(31337, errno);
EXPECT_EQ(tib, __get_tls());