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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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50
third_party/gdtoa/gdtoa.internal.h vendored
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@ -10,10 +10,11 @@ Kudos go to Guy L. Steele, Jr. and Jon L. White\\n\
Copyright (C) 1997, 1998, 2000 by Lucent Technologies\"");
asm(".include \"libc/disclaimer.inc\"");
#define IEEE_8087 1
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x7ff80000
#define d_QNAN1 0x0
#define IEEE_Arith 1
#define IEEE_8087 1
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x7ff80000
#define d_QNAN1 0x0
#if __NO_MATH_ERRNO__ + 0
#define NO_ERRNO 1
@ -270,36 +271,7 @@ extern Char *REALLOC(Char *, size_t);
#ifdef Bad_float_h
#ifdef IEEE_Arith
#define DBL_DIG 15
#define DBL_MAX_10_EXP 308
#define DBL_MAX_EXP 1024
#define FLT_RADIX 2
#define DBL_MAX 1.7976931348623157e+308
#endif
#ifdef IBM
#define DBL_DIG 16
#define DBL_MAX_10_EXP 75
#define DBL_MAX_EXP 63
#define FLT_RADIX 16
#define DBL_MAX 7.2370055773322621e+75
#endif
#ifdef VAX
#define DBL_DIG 16
#define DBL_MAX_10_EXP 38
#define DBL_MAX_EXP 127
#define FLT_RADIX 2
#define DBL_MAX 1.7014118346046923e+38
#define n_bigtens 2
#endif
#ifndef LONG_MAX
#define LONG_MAX 2147483647
#endif
#else /* ifndef Bad_float_h */
#else /* ifndef Bad_float_h */
#endif /* Bad_float_h */
#ifdef IEEE_Arith
@ -319,11 +291,7 @@ extern Char *REALLOC(Char *, size_t);
extern "C" {
#endif
#if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1
Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
#endif
typedef union {
typedef union {
double d;
ULong L[2];
} U;
@ -515,14 +483,14 @@ extern double rnd_prod(double, double), rnd_quot(double, double);
extern void ACQUIRE_DTOA_LOCK(unsigned int);
extern void FREE_DTOA_LOCK(unsigned int);
extern unsigned int dtoa_get_threadno(void);
#else /*}{*/
#else /*}{*/
#define ACQUIRE_DTOA_LOCK(n) /*nothing*/
#define FREE_DTOA_LOCK(n) /*nothing*/
#define MTa /*nothing*/
#define MTb /*nothing*/
#define MTd /*nothing*/
#define MTk /*nothing*/
#endif /*}}*/
#endif /*}}*/
#define Kmax 9