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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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73
test/libc/tinymath/copysign_test.c Normal file
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/*-*- 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 2021 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/math.h"
#include "libc/runtime/gc.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
TEST(copysign, test) {
EXPECT_STREQ("0", gc(xdtoa(copysign(0, +0))));
EXPECT_STREQ("-0", gc(xdtoa(copysign(0, -0.))));
EXPECT_STREQ("0", gc(xdtoa(copysign(0, +1))));
EXPECT_STREQ("-0", gc(xdtoa(copysign(-0., -1))));
EXPECT_STREQ("2", gc(xdtoa(copysign(2, +1))));
EXPECT_STREQ("-2", gc(xdtoa(copysign(-2, -1))));
EXPECT_STREQ("NAN", gc(xdtoa(copysign(NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoa(copysign(NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoa(copysign(INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoa(copysign(INFINITY, -1))));
EXPECT_STREQ("NAN", gc(xdtoa(copysign(-NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoa(copysign(-NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoa(copysign(-INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoa(copysign(-INFINITY, -1))));
}
TEST(copysignl, test) {
EXPECT_STREQ("0", gc(xdtoal(copysignl(0, +0))));
EXPECT_STREQ("-0", gc(xdtoal(copysignl(0, -0.))));
EXPECT_STREQ("0", gc(xdtoal(copysignl(0, +1))));
EXPECT_STREQ("-0", gc(xdtoal(copysignl(-0., -1))));
EXPECT_STREQ("2", gc(xdtoal(copysignl(2, +1))));
EXPECT_STREQ("-2", gc(xdtoal(copysignl(-2, -1))));
EXPECT_STREQ("NAN", gc(xdtoal(copysignl(NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoal(copysignl(NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoal(copysignl(INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoal(copysignl(INFINITY, -1))));
EXPECT_STREQ("NAN", gc(xdtoal(copysignl(-NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoal(copysignl(-NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoal(copysignl(-INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoal(copysignl(-INFINITY, -1))));
}
TEST(copysignf, test) {
EXPECT_STREQ("0", gc(xdtoaf(copysignf(0, +0))));
EXPECT_STREQ("-0", gc(xdtoaf(copysignf(0, -0.))));
EXPECT_STREQ("0", gc(xdtoaf(copysignf(0, +1))));
EXPECT_STREQ("-0", gc(xdtoaf(copysignf(-0., -1))));
EXPECT_STREQ("2", gc(xdtoaf(copysignf(2, +1))));
EXPECT_STREQ("-2", gc(xdtoaf(copysignf(-2, -1))));
EXPECT_STREQ("NAN", gc(xdtoaf(copysignf(NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoaf(copysignf(NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(copysignf(INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoaf(copysignf(INFINITY, -1))));
EXPECT_STREQ("NAN", gc(xdtoaf(copysignf(-NAN, +1))));
EXPECT_STREQ("-NAN", gc(xdtoaf(copysignf(-NAN, -1))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(copysignf(-INFINITY, +1))));
EXPECT_STREQ("-INFINITY", gc(xdtoaf(copysignf(-INFINITY, -1))));
}