When cancelling a thread, __pthread_do_cancel forces calling call_exit,
but we need to align down the stack, so any further SSE use can work.
---
sysdeps/mach/hurd/x86_64/htl/pt-machdep.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c
b/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c
index 2cb0ce9838..e11a1f994b 100644
--- a/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c
+++ b/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c
@@ -24,6 +24,7 @@
#include <mach/x86_64/mach_i386.h>
#include <mach/mig_errors.h>
#include <mach/thread_status.h>
+#include <thread_state.h>
#include <pt-sysdep.h>
int
@@ -48,7 +49,11 @@ __thread_set_pcsptp (thread_t thread,
if (set_sp)
state.ursp = (uintptr_t) sp;
if (set_ip)
- state.rip = (uintptr_t) ip;
+ {
+ /* Making it call something else, we have to re-align the stack for SSE.
*/
+ state.ursp = PTR_ALIGN_DOWN_8_16 (state.ursp);
+ state.rip = (uintptr_t) ip;
+ }
err = __thread_set_state (thread, i386_REGS_SEGS_STATE,
(thread_state_t) &state, i386_THREAD_STATE_COUNT);
--
2.51.0
