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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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3
libc/x/x.h
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@@ -29,8 +29,9 @@ int xwrite(int, const void *, uint64_t);
╚────────────────────────────────────────────────────────────────────────────│*/
void xdie(void) wontreturn;
char *xdtoa(double) _XMAL;
char *xdtoaf(float) _XMAL;
char *xdtoa(long double) _XMAL;
char *xdtoal(long double) _XMAL;
char *xasprintf(const char *, ...) printfesque(1) paramsnonnull((1)) _XMAL;
char *xvasprintf(const char *, va_list) _XPNN _XMAL;
char *xgetline(struct FILE *) _XPNN mallocesque;

7
libc/x/xdtoa.c
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@@ -16,17 +16,18 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/mem/mem.h"
#include "libc/x/x.h"
#include "third_party/gdtoa/gdtoa.h"
/**
* Converts double to string w/ high-accuracy the easy way.
* Converts double to string the easy way.
*
* @return string that needs to be free'd
*/
char *xdtoa(long double d) {
char *xdtoa(double d) {
char *p = xmalloc(32);
g_xfmt_p(p, &d, 16, 32, 2);
g_dfmt_p(p, &d, DBL_DIG, 32, 2);
return p;
}

3
libc/x/xdtoaf.c
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@@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/mem/mem.h"
#include "libc/x/x.h"
#include "third_party/gdtoa/gdtoa.h"
@@ -27,6 +28,6 @@
*/
char *xdtoaf(float d) {
char *p = xmalloc(32);
g_ffmt_p(p, &d, 7, 32, 2);
g_ffmt_p(p, &d, FLT_DIG, 32, 2);
return p;
}

33
libc/x/xdtoal.c Normal file
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@@ -0,0 +1,33 @@
/*-*- 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 2020 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/mem/mem.h"
#include "libc/x/x.h"
#include "third_party/gdtoa/gdtoa.h"
/**
* Converts double to string the easy way.
*
* @return string that needs to be free'd
*/
char *xdtoal(long double d) {
char *p = xmalloc(32);
g_xfmt_p(p, &d, 16, 32, 2);
return p;
}