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Make POSIX threads improvements

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- Ensure SIGTHR isn't blocked in newly created threads
- Use TIB rather than thread_local for thread atexits
- Make POSIX thread keys atomic within thread
- Don't bother logging prctl() to --strace
- Log thread destructor names to --strace
This commit is contained in:
Justine Tunney 2024-06-30 15:38:59 -07:00
parent 387310c659
commit 76957983cf
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GPG key ID: BE714B4575D6E328
11 changed files with 57 additions and 71 deletions
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4
libc/intrin/describeflags.internal.h
View file

@ -13,7 +13,6 @@ const char *DescribeFlags(char *, size_t, const struct DescribeFlags *, size_t,
const char *DescribeArchPrctlCode(char[12], int) libcesque;
const char *DescribeCancelState(char[12], int, int *) libcesque;
const char *DescribeCapability(char[32], int) libcesque;
const char *DescribeClockName(char[32], int) libcesque;
const char *DescribeControlKeyState(char[64], uint32_t) libcesque;
const char *DescribeDirfd(char[12], int) libcesque;
@ -47,7 +46,6 @@ const char *DescribeOpenFlags(char[128], int) libcesque;
const char *DescribeOpenMode(char[15], int, int) libcesque;
const char *DescribePersonalityFlags(char[128], int) libcesque;
const char *DescribePollFlags(char[64], int) libcesque;
const char *DescribePrctlOperation(int) libcesque;
const char *DescribeProtFlags(char[48], int) libcesque;
const char *DescribePtrace(char[12], int) libcesque;
const char *DescribePtraceEvent(char[32], int) libcesque;
@ -69,9 +67,7 @@ const char *DescribeVirtualKeyCode(char[32], uint32_t) libcesque;
const char *DescribeWhence(char[12], int) libcesque;
const char *DescribeWhichPrio(char[12], int) libcesque;
#define DescribeArchPrctlCode(x) DescribeArchPrctlCode(alloca(12), x)
#define DescribeCancelState(x, y) DescribeCancelState(alloca(12), x, y)
#define DescribeCapability(x) DescribeCapability(alloca(32), x)
#define DescribeClockName(x) DescribeClockName(alloca(32), x)
#define DescribeControlKeyState(x) DescribeControlKeyState(alloca(64), x)
#define DescribeDirfd(x) DescribeDirfd(alloca(12), x)

39
libc/intrin/describeprctloperation.c
View file

@ -1,39 +0,0 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et 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/sysv/consts/pr.h"
const char *DescribePrctlOperation(int x) {
switch (x) {
case PR_GET_NAME:
return "PR_GET_NAME";
case PR_SET_NO_NEW_PRIVS:
return "PR_SET_NO_NEW_PRIVS";
case PR_SET_SECCOMP:
return "PR_SET_SECCOMP";
case PR_GET_SECCOMP:
return "PR_GET_SECCOMP";
case PR_CAPBSET_READ:
return "PR_CAPBSET_READ";
case PR_CAPBSET_DROP:
return "PR_CAPBSET_DROP";
default:
return "PRCTL_???";
}
}