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authorRich Felker <dalias@aerifal.cx>2018-09-12 10:19:54 -0400
committerRich Felker <dalias@aerifal.cx>2018-09-12 18:40:35 -0400
commit5f12ffe1239a5e4f8d4e98e2dff4e191a71f4693 (patch)
tree39d2397a4c158aa45e26538b0798fe2e23e0d431 /src
parent09e87db555045bf3bcef69c692df24d13b2856fe (diff)
downloadmusl-5f12ffe1239a5e4f8d4e98e2dff4e191a71f4693.tar.gz
split internal lock API out of libc.h, creating lock.h
this further reduces the number of source files which need to include libc.h and thereby be potentially exposed to libc global state and internals. this will also facilitate further improvements like adding an inline fast-path, if we want to do so later.
Diffstat (limited to 'src')
-rw-r--r--src/dirent/readdir_r.c2
-rw-r--r--src/dirent/rewinddir.c2
-rw-r--r--src/dirent/seekdir.c2
-rw-r--r--src/exit/abort.c2
-rw-r--r--src/exit/at_quick_exit.c1
-rw-r--r--src/exit/atexit.c1
-rw-r--r--src/internal/libc.h6
-rw-r--r--src/internal/lock.h9
-rw-r--r--src/locale/dcngettext.c1
-rw-r--r--src/locale/locale_map.c2
-rw-r--r--src/locale/setlocale.c2
-rw-r--r--src/malloc/lite_malloc.c2
-rw-r--r--src/misc/syslog.c2
-rw-r--r--src/prng/random.c2
-rw-r--r--src/signal/sigaction.c1
-rw-r--r--src/stdio/ofl.c2
-rw-r--r--src/thread/pthread_atfork.c1
-rw-r--r--src/thread/pthread_create.c1
-rw-r--r--src/thread/pthread_getschedparam.c1
-rw-r--r--src/thread/pthread_kill.c1
-rw-r--r--src/thread/pthread_setschedparam.c1
-rw-r--r--src/thread/pthread_setschedprio.c1
-rw-r--r--src/thread/sem_open.c2
-rw-r--r--src/thread/synccall.c1
-rw-r--r--src/time/__tz.c1
25 files changed, 32 insertions, 17 deletions
diff --git a/src/dirent/readdir_r.c b/src/dirent/readdir_r.c
index 6293a514..e2a818f3 100644
--- a/src/dirent/readdir_r.c
+++ b/src/dirent/readdir_r.c
@@ -2,7 +2,7 @@
#include <errno.h>
#include <string.h>
#include "__dirent.h"
-#include "libc.h"
+#include "lock.h"
int readdir_r(DIR *restrict dir, struct dirent *restrict buf, struct dirent **restrict result)
{
diff --git a/src/dirent/rewinddir.c b/src/dirent/rewinddir.c
index f2053008..7ddda437 100644
--- a/src/dirent/rewinddir.c
+++ b/src/dirent/rewinddir.c
@@ -1,7 +1,7 @@
#include <dirent.h>
#include <unistd.h>
#include "__dirent.h"
-#include "libc.h"
+#include "lock.h"
void rewinddir(DIR *dir)
{
diff --git a/src/dirent/seekdir.c b/src/dirent/seekdir.c
index 5be47d4a..bf6cc6ec 100644
--- a/src/dirent/seekdir.c
+++ b/src/dirent/seekdir.c
@@ -1,7 +1,7 @@
#include <dirent.h>
#include <unistd.h>
#include "__dirent.h"
-#include "libc.h"
+#include "lock.h"
void seekdir(DIR *dir, long off)
{
diff --git a/src/exit/abort.c b/src/exit/abort.c
index 7c323d26..e1980f10 100644
--- a/src/exit/abort.c
+++ b/src/exit/abort.c
@@ -3,7 +3,7 @@
#include "syscall.h"
#include "pthread_impl.h"
#include "atomic.h"
-#include "libc.h"
+#include "lock.h"
#include "ksigaction.h"
hidden volatile int __abort_lock[1];
diff --git a/src/exit/at_quick_exit.c b/src/exit/at_quick_exit.c
index 4079b242..d3ce6522 100644
--- a/src/exit/at_quick_exit.c
+++ b/src/exit/at_quick_exit.c
@@ -1,5 +1,6 @@
#include <stdlib.h>
#include "libc.h"
+#include "lock.h"
#define COUNT 32
diff --git a/src/exit/atexit.c b/src/exit/atexit.c
index cd3b0a64..160d277a 100644
--- a/src/exit/atexit.c
+++ b/src/exit/atexit.c
@@ -1,6 +1,7 @@
#include <stdlib.h>
#include <stdint.h>
#include "libc.h"
+#include "lock.h"
/* Ensure that at least 32 atexit handlers can be registered without malloc */
#define COUNT 32
diff --git a/src/internal/libc.h b/src/internal/libc.h
index 0a279184..10bd66bd 100644
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -51,12 +51,6 @@ extern char *__progname, *__progname_full;
extern hidden const char __libc_version[];
-/* Designed to avoid any overhead in non-threaded processes */
-hidden void __lock(volatile int *);
-hidden void __unlock(volatile int *);
-#define LOCK(x) __lock(x)
-#define UNLOCK(x) __unlock(x)
-
hidden void __synccall(void (*)(void *), void *);
hidden int __setxid(int, int, int, int);
diff --git a/src/internal/lock.h b/src/internal/lock.h
new file mode 100644
index 00000000..c77db6f7
--- /dev/null
+++ b/src/internal/lock.h
@@ -0,0 +1,9 @@
+#ifndef LOCK_H
+#define LOCK_H
+
+hidden void __lock(volatile int *);
+hidden void __unlock(volatile int *);
+#define LOCK(x) __lock(x)
+#define UNLOCK(x) __unlock(x)
+
+#endif
diff --git a/src/locale/dcngettext.c b/src/locale/dcngettext.c
index eefa31a8..7fbe7196 100644
--- a/src/locale/dcngettext.c
+++ b/src/locale/dcngettext.c
@@ -9,6 +9,7 @@
#include "locale_impl.h"
#include "atomic.h"
#include "pleval.h"
+#include "lock.h"
struct binding {
struct binding *next;
diff --git a/src/locale/locale_map.c b/src/locale/locale_map.c
index e7b518a1..2321bac0 100644
--- a/src/locale/locale_map.c
+++ b/src/locale/locale_map.c
@@ -3,7 +3,7 @@
#include <sys/mman.h>
#include "locale_impl.h"
#include "libc.h"
-#include "atomic.h"
+#include "lock.h"
const char *__lctrans_impl(const char *msg, const struct __locale_map *lm)
{
diff --git a/src/locale/setlocale.c b/src/locale/setlocale.c
index 60e3353c..11d823ce 100644
--- a/src/locale/setlocale.c
+++ b/src/locale/setlocale.c
@@ -3,7 +3,7 @@
#include <string.h>
#include "locale_impl.h"
#include "libc.h"
-#include "atomic.h"
+#include "lock.h"
static char buf[LC_ALL*(LOCALE_NAME_MAX+1)];
diff --git a/src/malloc/lite_malloc.c b/src/malloc/lite_malloc.c
index 49157d36..050d84f6 100644
--- a/src/malloc/lite_malloc.c
+++ b/src/malloc/lite_malloc.c
@@ -2,7 +2,7 @@
#include <stdint.h>
#include <limits.h>
#include <errno.h>
-#include "libc.h"
+#include "lock.h"
#include "malloc_impl.h"
#define ALIGN 16
diff --git a/src/misc/syslog.c b/src/misc/syslog.c
index 410709d7..13d4b0a6 100644
--- a/src/misc/syslog.c
+++ b/src/misc/syslog.c
@@ -9,7 +9,7 @@
#include <pthread.h>
#include <errno.h>
#include <fcntl.h>
-#include "libc.h"
+#include "lock.h"
static volatile int lock[1];
static char log_ident[32];
diff --git a/src/prng/random.c b/src/prng/random.c
index 13a5e6df..633a17f6 100644
--- a/src/prng/random.c
+++ b/src/prng/random.c
@@ -1,6 +1,6 @@
#include <stdlib.h>
#include <stdint.h>
-#include "libc.h"
+#include "lock.h"
/*
this code uses the same lagged fibonacci generator as the
diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 2adedaa4..af47195e 100644
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -4,6 +4,7 @@
#include "syscall.h"
#include "pthread_impl.h"
#include "libc.h"
+#include "lock.h"
#include "ksigaction.h"
volatile int dummy_lock[1] = { 0 };
diff --git a/src/stdio/ofl.c b/src/stdio/ofl.c
index 0e3602aa..f2d3215a 100644
--- a/src/stdio/ofl.c
+++ b/src/stdio/ofl.c
@@ -1,5 +1,5 @@
#include "stdio_impl.h"
-#include "libc.h"
+#include "lock.h"
static FILE *ofl_head;
static volatile int ofl_lock[1];
diff --git a/src/thread/pthread_atfork.c b/src/thread/pthread_atfork.c
index c6f77b3f..76497401 100644
--- a/src/thread/pthread_atfork.c
+++ b/src/thread/pthread_atfork.c
@@ -1,5 +1,6 @@
#include <pthread.h>
#include "libc.h"
+#include "lock.h"
static struct atfork_funcs {
void (*prepare)(void);
diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
index 23dfe0ad..3293dcd5 100644
--- a/src/thread/pthread_create.c
+++ b/src/thread/pthread_create.c
@@ -2,6 +2,7 @@
#include "pthread_impl.h"
#include "stdio_impl.h"
#include "libc.h"
+#include "lock.h"
#include <sys/mman.h>
#include <string.h>
#include <stddef.h>
diff --git a/src/thread/pthread_getschedparam.c b/src/thread/pthread_getschedparam.c
index 05be4242..1cba073d 100644
--- a/src/thread/pthread_getschedparam.c
+++ b/src/thread/pthread_getschedparam.c
@@ -1,4 +1,5 @@
#include "pthread_impl.h"
+#include "lock.h"
int pthread_getschedparam(pthread_t t, int *restrict policy, struct sched_param *restrict param)
{
diff --git a/src/thread/pthread_kill.c b/src/thread/pthread_kill.c
index 6d70e626..3d9395cb 100644
--- a/src/thread/pthread_kill.c
+++ b/src/thread/pthread_kill.c
@@ -1,4 +1,5 @@
#include "pthread_impl.h"
+#include "lock.h"
int pthread_kill(pthread_t t, int sig)
{
diff --git a/src/thread/pthread_setschedparam.c b/src/thread/pthread_setschedparam.c
index ab45f2ff..038d13d8 100644
--- a/src/thread/pthread_setschedparam.c
+++ b/src/thread/pthread_setschedparam.c
@@ -1,4 +1,5 @@
#include "pthread_impl.h"
+#include "lock.h"
int pthread_setschedparam(pthread_t t, int policy, const struct sched_param *param)
{
diff --git a/src/thread/pthread_setschedprio.c b/src/thread/pthread_setschedprio.c
index c353f6b5..5bf4a019 100644
--- a/src/thread/pthread_setschedprio.c
+++ b/src/thread/pthread_setschedprio.c
@@ -1,4 +1,5 @@
#include "pthread_impl.h"
+#include "lock.h"
int pthread_setschedprio(pthread_t t, int prio)
{
diff --git a/src/thread/sem_open.c b/src/thread/sem_open.c
index 1bd8020a..de8555c5 100644
--- a/src/thread/sem_open.c
+++ b/src/thread/sem_open.c
@@ -11,7 +11,7 @@
#include <sys/stat.h>
#include <stdlib.h>
#include <pthread.h>
-#include "libc.h"
+#include "lock.h"
static struct {
ino_t ino;
diff --git a/src/thread/synccall.c b/src/thread/synccall.c
index ba2f258e..cc66bd24 100644
--- a/src/thread/synccall.c
+++ b/src/thread/synccall.c
@@ -7,6 +7,7 @@
#include "futex.h"
#include "atomic.h"
#include "../dirent/__dirent.h"
+#include "lock.h"
static struct chain {
struct chain *next;
diff --git a/src/time/__tz.c b/src/time/__tz.c
index 6f5257fe..51e66514 100644
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
@@ -5,6 +5,7 @@
#include <string.h>
#include <sys/mman.h>
#include "libc.h"
+#include "lock.h"
long __timezone = 0;
int __daylight = 0;