X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Finternal%2Fpthread_impl.h;h=a89ef9ac7e1ec7b3a9606019a577d8e0b669a065;hb=49722a8ed4c8fd056ac8aebd6bec9d998b700f80;hp=a0226a6310ad2de069b730cd65d8083b7806a1df;hpb=fa80787698536ecd8b9028703a3bc2e3f59e3d65;p=musl

diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index a0226a63..a89ef9ac 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -5,6 +5,7 @@
 #include <signal.h>
 #include <errno.h>
 #include <limits.h>
+#include <sys/mman.h>
 #include "libc.h"
 #include "syscall.h"
 #include "atomic.h"
@@ -13,41 +14,65 @@
 #define pthread __pthread
 
 struct pthread {
+	/* Part 1 -- these fields may be external or
+	 * internal (accessed via asm) ABI. Do not change. */
 	struct pthread *self;
 	void **dtv, *unused1, *unused2;
 	uintptr_t sysinfo;
-	uintptr_t canary;
-	pid_t tid, pid;
-	int tsd_used, errno_val;
-	volatile int cancel, canceldisable, cancelasync;
-	int detached;
+	uintptr_t canary, canary2;
+
+	/* Part 2 -- implementation details, non-ABI. */
+	int tid;
+	int errno_val;
+	volatile int detach_state;
+	volatile int cancel;
+	volatile unsigned char canceldisable, cancelasync;
+	unsigned char tsd_used:1;
+	unsigned char unblock_cancel:1;
+	unsigned char dlerror_flag:1;
 	unsigned char *map_base;
 	size_t map_size;
 	void *stack;
 	size_t stack_size;
+	size_t guard_size;
 	void *start_arg;
 	void *(*start)(void *);
 	void *result;
 	struct __ptcb *cancelbuf;
 	void **tsd;
-	pthread_attr_t attr;
-	volatile int dead;
 	struct {
 		volatile void *volatile head;
 		long off;
 		volatile void *volatile pending;
 	} robust_list;
-	int unblock_cancel;
 	volatile int timer_id;
 	locale_t locale;
-	volatile int killlock[2];
-	volatile int exitlock[2];
-	volatile int startlock[2];
-	unsigned long sigmask[_NSIG/8/sizeof(long)];
+	volatile int killlock[1];
+	char *dlerror_buf;
 	void *stdio_locks;
+
+	/* Part 3 -- the positions of these fields relative to
+	 * the end of the structure is external and internal ABI. */
+	uintptr_t canary_at_end;
 	void **dtv_copy;
 };
 
+struct start_sched_args {
+	void *start_arg;
+	void *(*start_fn)(void *);
+	sigset_t mask;
+	pthread_attr_t *attr;
+	volatile int futex;
+};
+
+enum {
+	DT_EXITED = 0,
+	DT_EXITING,
+	DT_JOINABLE,
+	DT_DETACHED,
+	DT_DYNAMIC,
+};
+
 struct __timer {
 	int timerid;
 	pthread_t thread;
@@ -87,6 +112,18 @@ struct __timer {
 
 #include "pthread_arch.h"
 
+#ifndef CANARY
+#define CANARY canary
+#endif
+
+#ifndef DTP_OFFSET
+#define DTP_OFFSET 0
+#endif
+
+#ifndef tls_mod_off_t
+#define tls_mod_off_t size_t
+#endif
+
 #define SIGTIMER 32
 #define SIGCANCEL 33
 #define SIGSYNCCALL 34
@@ -99,40 +136,55 @@ struct __timer {
 	((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
 	 0x80000000 })
 
-pthread_t __pthread_self_init(void);
-
-int __clone(int (*)(void *), void *, int, void *, ...);
-int __set_thread_area(void *);
-int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
-int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
-void __lock(volatile int *);
-void __unmapself(void *, size_t);
-
-void __vm_wait(void);
-void __vm_lock(void);
-void __vm_unlock(void);
-
-int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
-int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
-void __wait(volatile int *, volatile int *, int, int);
+void *__tls_get_addr(tls_mod_off_t *);
+hidden void *__tls_get_new(tls_mod_off_t *);
+hidden int __init_tp(void *);
+hidden void *__copy_tls(unsigned char *);
+hidden void __reset_tls();
+
+hidden void __dl_thread_cleanup(void);
+hidden void __fork_handler(int);
+hidden void __testcancel();
+hidden void __do_cleanup_push(struct __ptcb *);
+hidden void __do_cleanup_pop(struct __ptcb *);
+hidden void __pthread_tsd_run_dtors();
+
+extern hidden volatile int __block_new_threads;
+extern hidden volatile size_t __pthread_tsd_size;
+extern hidden void *__pthread_tsd_main[];
+extern hidden volatile int __aio_fut;
+
+hidden int __clone(int (*)(void *), void *, int, void *, ...);
+hidden int __set_thread_area(void *);
+hidden int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
+hidden void __unmapself(void *, size_t);
+
+hidden int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
+hidden int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
+hidden void __wait(volatile int *, volatile int *, int, int);
 static inline void __wake(volatile void *addr, int cnt, int priv)
 {
-	if (priv) priv = 128;
+	if (priv) priv = FUTEX_PRIVATE;
 	if (cnt<0) cnt = INT_MAX;
 	__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
 	__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
 }
+static inline void __futexwait(volatile void *addr, int val, int priv)
+{
+	if (priv) priv = FUTEX_PRIVATE;
+	__syscall(SYS_futex, addr, FUTEX_WAIT|priv, val, 0) != -ENOSYS ||
+	__syscall(SYS_futex, addr, FUTEX_WAIT, val, 0);
+}
 
-void __acquire_ptc(void);
-void __release_ptc(void);
-void __inhibit_ptc(void);
+hidden void __acquire_ptc(void);
+hidden void __release_ptc(void);
+hidden void __inhibit_ptc(void);
 
-void __block_all_sigs(void *);
-void __block_app_sigs(void *);
-void __restore_sigs(void *);
+extern hidden size_t __default_stacksize;
+extern hidden size_t __default_guardsize;
 
 #define DEFAULT_STACK_SIZE 81920
-#define DEFAULT_GUARD_SIZE PAGE_SIZE
+#define DEFAULT_GUARD_SIZE 4096
 
 #define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)