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Improve signal handling and math

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- Polyfill ucontext_t on FreeBSD/OpenBSD/NetBSD
- Add tests confirming signals can edit CPU state
- Work towards supporting ZIP filesystem on bare metal
- Add more tinymath unit tests for POSIX conformance
- Add X87 and SSE status flags to crash report
- Fix some bugs in blinkenlights
- Fix llvm build breakage
This commit is contained in:
Justine Tunney 2021-02-25 18:30:17 -08:00
parent cdc54ea1fd
commit 40291c9db3
109 changed files with 2316 additions and 520 deletions
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34
test/libc/tinymath/exp_test.c
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@ -22,7 +22,41 @@
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
#define expl(x) expl(VEIL("t", (long double)(x)))
#define exp(x) exp(VEIL("x", (double)(x)))
#define expf(x) expf(VEIL("x", (float)(x)))
TEST(expl, test) {
EXPECT_STREQ("1", gc(xdtoal(expl(0))));
EXPECT_STREQ("1", gc(xdtoal(expl(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoal(expl(INFINITY))));
EXPECT_STREQ("0", gc(xdtoal(expl(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoal(expl(NAN))));
EXPECT_STREQ("0", gc(xdtoal(expl(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoal(expl(132098844872390))));
}
TEST(exp, test) {
EXPECT_STREQ("1", gc(xdtoa(exp(0))));
EXPECT_STREQ("1", gc(xdtoa(exp(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoa(exp(INFINITY))));
EXPECT_STREQ("0", gc(xdtoa(exp(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoa(exp(NAN))));
EXPECT_STREQ("0", gc(xdtoa(exp(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoa(exp(132098844872390))));
}
TEST(expf, test) {
EXPECT_STREQ("1", gc(xdtoaf(expf(0))));
EXPECT_STREQ("1", gc(xdtoaf(expf(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(expf(INFINITY))));
EXPECT_STREQ("0", gc(xdtoaf(expf(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoaf(expf(NAN))));
EXPECT_STREQ("0", gc(xdtoaf(expf(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(expf(132098844872390))));
}
TEST(exp, fun) {
ASSERT_STREQ("7.389056", gc(xasprintf("%f", exp(2.0))));
ASSERT_STREQ("6.389056", gc(xasprintf("%f", expm1(2.0))));
ASSERT_STREQ("6.389056", gc(xasprintf("%f", exp(2.0) - 1.0)));