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-rw-r--r--sysdeps/mach/hurd/x86/trampoline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/x86/trampoline.c b/sysdeps/mach/hurd/x86/trampoline.c
index e13c5d85f5..19bddad8e1 100644
--- a/sysdeps/mach/hurd/x86/trampoline.c
+++ b/sysdeps/mach/hurd/x86/trampoline.c
@@ -200,7 +200,7 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action
   /* Align SP at 16 bytes.  Coupled with the fact that sigreturn_addr is
      16-byte aligned within the stackframe struct, this ensures that it ends
      up on a 16-byte aligned address, as required by the ABI.  */
-  sigsp = (void *) ((uintptr_t) sigsp & 16UL);
+  sigsp = (void *) ((uintptr_t) sigsp & ~15UL);
 #endif
 
   /* Push the arguments to call `trampoline' on the stack.  */