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match glibc/lsb cancellation abi on i386
[musl]
/
src
/
thread
/
pthread_create.c
diff --git
a/src/thread/pthread_create.c
b/src/thread/pthread_create.c
index
17a47f6
..
9f22b4c
100644
(file)
--- a/
src/thread/pthread_create.c
+++ b/
src/thread/pthread_create.c
@@
-1,5
+1,10
@@
#include "pthread_impl.h"
#include "pthread_impl.h"
+#ifdef __pthread_unwind_next
+#undef __pthread_unwind_next
+#define __pthread_unwind_next __pthread_unwind_next_3
+#endif
+
void __pthread_unwind_next(struct __ptcb *cb)
{
int i, j, not_finished;
void __pthread_unwind_next(struct __ptcb *cb)
{
int i, j, not_finished;
@@
-42,6
+47,12
@@
void __pthread_unwind_next(struct __ptcb *cb)
static void docancel(struct pthread *self)
{
struct __ptcb cb = { .__next = self->cancelbuf };
static void docancel(struct pthread *self)
{
struct __ptcb cb = { .__next = self->cancelbuf };
+ sigset_t set;
+ self->canceldisable = 1;
+ self->cancelasync = 0;
+ sigemptyset(&set);
+ sigaddset(&set, SIGCANCEL);
+ __libc_sigprocmask(SIG_UNBLOCK, &set, 0);
__pthread_unwind_next(&cb);
}
__pthread_unwind_next(&cb);
}
@@
-50,17
+61,17
@@
static void cancel_handler(int sig, siginfo_t *si, void *ctx)
struct pthread *self = __pthread_self();
if (si->si_code > 0 || si->si_pid != self->pid) return;
self->cancel = 1;
struct pthread *self = __pthread_self();
if (si->si_code > 0 || si->si_pid != self->pid) return;
self->cancel = 1;
- if (self->canceldisable
|| (!self->cancelasync && !self->cancelpoint))
- return;
- docancel(self);
+ if (self->canceldisable
) return;
+ if (self->cancelasync || (self->cancelpoint==1 && PC_AT_SYS(ctx)))
+
docancel(self);
}
static void cancelpt(int x)
{
struct pthread *self = __pthread_self();
if (self->canceldisable) return;
}
static void cancelpt(int x)
{
struct pthread *self = __pthread_self();
if (self->canceldisable) return;
- self->cancelpoint = x;
-
if (self->cancel)
docancel(self);
+ if ((self->cancelpoint+=x)==1 && x>=0 && self->cancel)
+
docancel(self);
}
/* "rsyscall" is a mechanism by which a thread can synchronously force all
}
/* "rsyscall" is a mechanism by which a thread can synchronously force all