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POSIX issue 8 has a standard way to avoid pthread_atfork() handlers.

Change-Id: I801c55dc3fb9e14cc03f854992d60872c5468ab5
This commit is contained in:
Elliott Hughes 2024-02-29 22:59:20 +00:00
parent b6fc19c308
commit 06053405e9
1 changed files with 1 additions and 5 deletions
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6
debuggerd/handler/debuggerd_handler.cpp
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@ -275,10 +275,6 @@ static void raise_caps() {
}
}
static pid_t __fork() {
return clone(nullptr, nullptr, 0, nullptr);
}
// Double-clone, with CLONE_FILES to share the file descriptor table for kcmp validation.
// Returns 0 in the orphaned child, the pid of the orphan in the original process, or -1 on failure.
static void create_vm_process() {
@ -426,7 +422,7 @@ static int debuggerd_dispatch_pseudothread(void* arg) {
}
// Don't use fork(2) to avoid calling pthread_atfork handlers.
pid_t crash_dump_pid = __fork();
pid_t crash_dump_pid = _Fork();
if (crash_dump_pid == -1) {
async_safe_format_log(ANDROID_LOG_FATAL, "libc",
"failed to fork in debuggerd signal handler: %s", strerror(errno));