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Make more fixes and improvements

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- Fix Makefile flaking due to ZIPOBJ_FLAGS generation
- Make printf() floating point and gdtoa thread safe
- Polish up the runit / runitd programs some more
- Prune some more makefile dependencies
This commit is contained in:
Justine Tunney 2022-06-13 11:02:13 -07:00
parent 3c285337a2
commit a3865ecc3c
61 changed files with 316 additions and 132 deletions
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37
libc/intrin/describefutexop.c Normal file
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@ -0,0 +1,37 @@
/*-*- 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 2022 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/intrin/describeflags.internal.h"
#include "libc/macros.internal.h"
#include "libc/nt/enum/consolemodeflags.h"
#include "libc/sysv/consts/futex.h"
const char *DescribeNtFutexOp(int x) {
const struct DescribeFlags kFutexOp[] = {
{FUTEX_WAIT_PRIVATE, "WAIT_PRIVATE"}, //
{FUTEX_WAKE_PRIVATE, "WAKE_PRIVATE"}, //
{FUTEX_REQUEUE_PRIVATE, "REQUEUE_PRIVATE"}, //
{FUTEX_PRIVATE_FLAG, "PRIVATE_FLAG"}, //
{FUTEX_REQUEUE, "REQUEUE"}, //
{FUTEX_WAIT, "WAIT"}, //
{FUTEX_WAKE, "WAKE"}, //
};
_Alignas(char) static char futexop[32];
return DescribeFlags(futexop, sizeof(futexop), kFutexOp, ARRAYLEN(kFutexOp),
"FUTEX_", x);
}

6
libc/intrin/nopl.h
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@ -44,7 +44,8 @@
"nopl\t%a0" \
: /* no inputs */ \
: "X"(FUNC), "X"(IMAGE_BASE_VIRTUAL) \
: "rax", "rdi", "rsi", "rdx", "rcx", "r8", "r9", "memory"); \
: "rax", "rdi", "rsi", "rdx", "rcx", "r8", "r9", "r10", \
"r11", "memory", "cc"); \
0; \
})
@ -60,7 +61,8 @@
"nopl\t%a1" \
: "+D"(__arg) \
: "X"(FUNC), "X"(IMAGE_BASE_VIRTUAL) \
: "rax", "rsi", "rdx", "rcx", "r8", "r9", "memory"); \
: "rax", "rsi", "rdx", "rcx", "r8", "r9", "r10", "r11", \
"memory", "cc"); \
0; \
})

3
libc/intrin/pthread_mutex_lock.c
View file

@ -44,7 +44,8 @@ int pthread_mutex_lock(pthread_mutex_t *mutex) {
}
}
atomic_fetch_add(&mutex->waits, +1);
if (!IsLinux() || futex((void *)&mutex->owner, FUTEX_WAIT, owner, 0, 0)) {
if (!IsLinux() ||
sys_futex((void *)&mutex->owner, FUTEX_WAIT, owner, 0, 0)) {
if (++tries & 7) {
__builtin_ia32_pause();
} else {

2
libc/intrin/pthread_mutex_unlock.c
View file

@ -38,7 +38,7 @@ int pthread_mutex_unlock(pthread_mutex_t *mutex) {
atomic_store_explicit(&mutex->owner, 0, memory_order_relaxed);
if (IsLinux() &&
atomic_load_explicit(&mutex->waits, memory_order_acquire)) {
futex((void *)&mutex->owner, FUTEX_WAKE, 1, 0, 0);
sys_futex((void *)&mutex->owner, FUTEX_WAKE, 1, 0, 0);
}
}
return 0;