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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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42
test/libc/tinymath/powl_test.c
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@ -16,39 +16,47 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/ucontext.h"
#include "libc/math.h"
#include "libc/runtime/gc.h"
#include "libc/runtime/pc.internal.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
double powa(double x, double y) {
return exp2(fmod(y * log2(x), 1)) * exp2(y);
}
TEST(powl, testLongDouble) {
EXPECT_TRUE(isnan(powl(-1, 1.1)));
EXPECT_STREQ("1e+4932", gc(xdtoal(powl(10, 4932))));
EXPECT_STREQ("INFINITY", gc(xdtoal(powl(10, 4933))));
EXPECT_STREQ("0", gc(xdtoal(powl(10, -5000))));
EXPECT_STREQ("1.063382396627933e+37", gc(xdtoal(powl(2, 123))));
/* .4248496805467504836322459796959084815827285786480897 */
EXPECT_STARTSWITH(".4248496805467504", gc(xdtoa(powl(0.7, 2.4))));
EXPECT_STARTSWITH(".4248496805467504", gc(xdtoal(powl(0.7, 2.4))));
}
TEST(powl, testDouble) {
EXPECT_STARTSWITH(".4248496805467504", gc(xdtoa(pow(0.7, 2.4))));
EXPECT_STREQ("1e+308", gc(xdtoa(pow(10, 308))));
EXPECT_STREQ("INFINITY", gc(xdtoa(pow(10, 309))));
EXPECT_STARTSWITH(".42484968054675", gc(xdtoa(pow(0.7, 2.4))));
}
TEST(powl, testFloat) {
EXPECT_STARTSWITH(".4248496", gc(xdtoa(powf(0.7f, 2.4f))));
}
static long double do_powl(void) {
return CONCEAL("t", powl(CONCEAL("t", 0.7), CONCEAL("t", 0.2)));
}
static double do_pow(void) {
return CONCEAL("x", pow(CONCEAL("x", 0.7), CONCEAL("x", 0.2)));
}
static float do_powf(void) {
return CONCEAL("x", powf(CONCEAL("x", 0.7f), CONCEAL("x", 0.2f)));
}
BENCH(powl, bench) {
EZBENCH2("powl", donothing, do_powl()); /* ~61ns */
EZBENCH2("pow", donothing, do_pow()); /* ~64ns */
EZBENCH2("powf", donothing, do_powf()); /* ~64ns */
double _pow(double, double) asm("pow");
float _powf(float, float) asm("powf");
long double _powl(long double, long double) asm("powl");
EZBENCH2("pow", donothing, _pow(.7, .2)); /* ~51ns */
EZBENCH2("powf", donothing, _powf(.7, .2)); /* ~52ns */
EZBENCH2("powl", donothing, _powl(.7, .2)); /* ~53ns */
}