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authormarcel <marcel@FreeBSD.org>2003-09-19 23:00:28 +0000
committermarcel <marcel@FreeBSD.org>2003-09-19 23:00:28 +0000
commit5888af272d86d59b4dea8386699c1d8a2e951359 (patch)
tree63ef0968be749a1026c288cad41cf535477137f8 /lib/libpthread
parentef50cc82f8780674002e084e82833804e2957397 (diff)
downloadFreeBSD-src-5888af272d86d59b4dea8386699c1d8a2e951359.zip
FreeBSD-src-5888af272d86d59b4dea8386699c1d8a2e951359.tar.gz
_ia64_break_setcontext() now takes a mcontext_t. While here, define
THR_SETCONTEXT as PANIC(). The THR_SETCONTEXT macro is currently not used, which means that the definition we had could be wrong, overly pessimistic or unknowingly right. I don't like the odds... The new _ia64_break_setcontext() and corresponding kernel fixes make KSE mostly usable. There's still a case where we don't properly restore a context and end up with a NaT consumption fault (typically an indication for not handling NaT collection points correctly), but at least now mutex_d works...
Diffstat (limited to 'lib/libpthread')
-rw-r--r--lib/libpthread/arch/ia64/include/pthread_md.h13
1 files changed, 3 insertions, 10 deletions
diff --git a/lib/libpthread/arch/ia64/include/pthread_md.h b/lib/libpthread/arch/ia64/include/pthread_md.h
index 95f1d2d..a0d4236 100644
--- a/lib/libpthread/arch/ia64/include/pthread_md.h
+++ b/lib/libpthread/arch/ia64/include/pthread_md.h
@@ -34,14 +34,7 @@
#include <ucontext.h>
#define THR_GETCONTEXT(ucp) _ia64_save_context(&(ucp)->uc_mcontext)
-#define THR_SETCONTEXT(ucp) \
- do { \
- if ((ucp)->uc_mcontext.mc_flags & _MC_FLAGS_ASYNC_CONTEXT) \
- _ia64_break_setcontext(ucp); \
- else \
- _ia64_restore_context(&(ucp)->uc_mcontext, 0, \
- NULL); \
- } while (0)
+#define THR_SETCONTEXT(ucp) PANIC("THR_SETCONTEXT() now in use!\n")
#define PER_THREAD
@@ -200,7 +193,7 @@ _get_curkse(void)
return (_tcb->tcb_curkcb->kcb_kse);
}
-void _ia64_break_setcontext(ucontext_t *ucp);
+void _ia64_break_setcontext(mcontext_t *mc);
void _ia64_enter_uts(kse_func_t uts, struct kse_mailbox *km, void *stack,
size_t stacksz);
int _ia64_restore_context(mcontext_t *mc, intptr_t val, intptr_t *loc);
@@ -236,7 +229,7 @@ _thread_switch(struct kcb *kcb, struct tcb *tcb, int setmbox)
(intptr_t)&kcb->kcb_kmbx.km_curthread;
mc->mc_special.isr = (intptr_t)&tcb->tcb_tmbx;
}
- _ia64_break_setcontext(&tcb->tcb_tmbx.tm_context);
+ _ia64_break_setcontext(mc);
} else {
if (setmbox)
_ia64_restore_context(mc, (intptr_t)&tcb->tcb_tmbx,
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