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Make more threading improvements

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- ASAN memory morgue is now lockless
- Make C11 atomics header more portable
- Rewrote pthread keys support to be lockless
- Simplify Python's unicode table unpacking code
- Make crash report write(2) closer to being atomic
- Make it possible to strace/ftrace a single thread
- ASAN now checks nul-terminated strings fast and properly
- Windows fork() now restores TLS memory of calling thread
This commit is contained in:
Justine Tunney 2022-11-01 22:36:03 -07:00
parent d7b88734cd
commit e522aa3a07
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GPG key ID: BE714B4575D6E328
189 changed files with 1363 additions and 1217 deletions
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24
libc/thread/tls.h
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@ -18,18 +18,19 @@ struct CosmoFtrace { /* 16 */
};
struct CosmoTib {
struct CosmoTib *tib_self; /* 0x00 */
struct CosmoFtrace tib_ftrace; /* 0x08 */
void *tib_garbages; /* 0x18 */
intptr_t tib_locale; /* 0x20 */
intptr_t tib_pthread; /* 0x28 */
struct CosmoTib *tib_self2; /* 0x30 */
_Atomic(int32_t) tib_tid; /* 0x38 */
int32_t tib_errno; /* 0x3c */
uint64_t tib_flags; /* 0x40 */
struct CosmoTib *tib_self; /* 0x00 */
struct CosmoFtrace tib_ftracer; /* 0x08 */
void *tib_garbages; /* 0x18 */
intptr_t tib_locale; /* 0x20 */
intptr_t tib_pthread; /* 0x28 */
struct CosmoTib *tib_self2; /* 0x30 */
_Atomic(int32_t) tib_tid; /* 0x38 */
int32_t tib_errno; /* 0x3c */
uint64_t tib_flags; /* 0x40 */
void *tib_nsync;
uint64_t tib_sigmask;
void *tib_reserved3;
int tib_ftrace; /* inherited */
int tib_strace; /* inherited */
uint64_t tib_sigmask; /* inherited */
void *tib_reserved4;
void *tib_reserved5;
void *tib_reserved6;
@ -42,6 +43,7 @@ extern bool __tls_enabled;
extern unsigned __tls_index;
void __require_tls(void);
void __set_tls(struct CosmoTib *);
#if defined(__GNUC__) && defined(__x86_64__) && !defined(__STRICT_ANSI__)
/**