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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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53
test/libc/tinymath/sinl_test.c
View file

@ -22,21 +22,58 @@
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
char buf[32];
#define sinl(x) sinl(VEIL("t", (long double)(x)))
#define sin(x) sin(VEIL("x", (double)(x)))
#define sinf(x) sinf(VEIL("x", (float)(x)))
TEST(sinl, testLongDouble) {
EXPECT_STREQ(".479425538604203", gc(xdtoa(sinl(.5))));
EXPECT_STREQ("-.479425538604203", gc(xdtoa(sinl(-.5))));
void SetUp(void) {
/* 8087 FPU Control Word
IM: Invalid Operation ───────────────┐
DM: Denormal Operand ───────────────┐│
ZM: Zero Divide ───────────────────┐││
OM: Overflow ─────────────────────┐│││
UM: Underflow ───────────────────┐││││
PM: Precision ──────────────────┐│││││
PC: Precision Control ────────┐ ││││││
{float,∅,double,long double} │ ││││││
RC: Rounding Control ───────┐ │ ││││││
{even, →-∞, →+∞, →0} │┌┤ ││││││
┌┤││ ││││││
d││││rr││││││*/
int x87cw = 0b0000000000000000001101100001;
asm volatile("fldcw\t%0" : /* no outputs */ : "m"(x87cw));
}
TEST(sinl, testDouble) {
TEST(sinl, test) {
EXPECT_STREQ("NAN", gc(xdtoal(sinl(NAN))));
EXPECT_STREQ("-NAN", gc(xdtoal(sinl(+INFINITY))));
EXPECT_STREQ("-NAN", gc(xdtoal(sinl(-INFINITY))));
EXPECT_STREQ(".479425538604203", gc(xdtoal(sinl(.5))));
EXPECT_STREQ("-.479425538604203", gc(xdtoal(sinl(-.5))));
EXPECT_STREQ(".8414709794048734", gc(xdtoal(sinl(.99999999))));
/* EXPECT_STREQ("-.998836772397", gc(xdtoal(sinl(555555555555)))); */
/* EXPECT_STREQ("1", gc(xdtoal(SINL(5.319372648326541e+255L)))); */
}
TEST(sin, test) {
EXPECT_TRUE(isnan(sin(NAN)));
EXPECT_TRUE(isnan(sin(+INFINITY)));
EXPECT_TRUE(isnan(sin(-INFINITY)));
EXPECT_STREQ("NAN", gc(xdtoa(sin(NAN))));
EXPECT_STREQ(".479425538604203", gc(xdtoa(sin(.5))));
EXPECT_STREQ("-.479425538604203", gc(xdtoa(sin(-.5))));
EXPECT_STREQ(".479425538604203", gc(xdtoa(sin(.5))));
EXPECT_STREQ("-.479425538604203", gc(xdtoa(sin(-.5))));
}
TEST(sinl, testFloat) {
EXPECT_STARTSWITH(".4794255", gc(xdtoa(sinf(.5f))));
EXPECT_STARTSWITH("-.4794255", gc(xdtoa(sinf(-.5f))));
TEST(sinf, test) {
EXPECT_TRUE(isnan(sinf(NAN)));
EXPECT_TRUE(isnan(sinf(+INFINITY)));
EXPECT_TRUE(isnan(sinf(-INFINITY)));
EXPECT_STREQ("NAN", gc(xdtoaf(sinf(NAN))));
EXPECT_STARTSWITH(".479426", gc(xdtoaf(sinf(.5f))));
EXPECT_STARTSWITH("-.479426", gc(xdtoaf(sinf(-.5f))));
EXPECT_STARTSWITH(".873283", gc(xdtoaf(sinf(555))));
}
BENCH(sinl, bench) {