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From d513c8bfc982dbd976617178b040c512c95710b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@gmail.com>
Date: Thu, 25 Oct 2018 09:57:07 +0200
Subject: [PATCH] musl: process-util
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Upstream-Status: Pending
Stolen from [1] and prettyfied slightly
[1] https://github.com/voidlinux/void-packages/tree/master/srcpkgs/NetworkManager/patches
Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
---
src/systemd/src/basic/process-util.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/systemd/src/basic/process-util.c b/src/systemd/src/basic/process-util.c
index 1412f03..45f5049 100644
--- a/src/systemd/src/basic/process-util.c
+++ b/src/systemd/src/basic/process-util.c
@@ -21,6 +21,9 @@
#include <sys/wait.h>
#include <syslog.h>
#include <unistd.h>
+#ifndef __GLIBC__
+#include <pthread.h>
+#endif
#if 0 /* NM_IGNORED */
#if HAVE_VALGRIND_VALGRIND_H
#include <valgrind/valgrind.h>
@@ -1153,11 +1156,13 @@ void reset_cached_pid(void) {
cached_pid = CACHED_PID_UNSET;
}
+#ifdef __GLIBC__
/* We use glibc __register_atfork() + __dso_handle directly here, as they are not included in the glibc
* headers. __register_atfork() is mostly equivalent to pthread_atfork(), but doesn't require us to link against
* libpthread, as it is part of glibc anyway. */
extern int __register_atfork(void (*prepare) (void), void (*parent) (void), void (*child) (void), void *dso_handle);
extern void* __dso_handle __attribute__ ((__weak__));
+#endif
pid_t getpid_cached(void) {
static bool installed = false;
@@ -1186,7 +1191,11 @@ pid_t getpid_cached(void) {
* only half-documented (glibc doesn't document it but LSB does — though only superficially)
* we'll check for errors only in the most generic fashion possible. */
+#ifdef __GLIBC__
if (__register_atfork(NULL, NULL, reset_cached_pid, __dso_handle) != 0) {
+#else
+ if (pthread_atfork(NULL, NULL, reset_cached_pid) != 0) {
+#endif
/* OOM? Let's try again later */
cached_pid = CACHED_PID_UNSET;
return new_pid;
--
2.14.5
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