* [hurd,commited] hurd: Add pointer guard support
@ 2020-06-06 1:31 Samuel Thibault
0 siblings, 0 replies; only message in thread
From: Samuel Thibault @ 2020-06-06 1:31 UTC (permalink / raw)
To: libc-alpha; +Cc: Samuel Thibault, commit-hurd
* sysdeps/mach/hurd/i386/tls.h (THREAD_SET_POINTER_GUARD,
THREAD_COPY_POINTER_GUARD): New macros.
---
sysdeps/mach/hurd/i386/tls.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sysdeps/mach/hurd/i386/tls.h b/sysdeps/mach/hurd/i386/tls.h
index 03a894bd35..97d0b1cbab 100644
--- a/sysdeps/mach/hurd/i386/tls.h
+++ b/sysdeps/mach/hurd/i386/tls.h
@@ -303,6 +303,13 @@ out:
((descr)->stack_guard \
= THREAD_GETMEM (THREAD_SELF, stack_guard))
+/* Set the pointer guard field in the TCB head. */
+#define THREAD_SET_POINTER_GUARD(value) \
+ THREAD_SETMEM (THREAD_SELF, pointer_guard, value)
+#define THREAD_COPY_POINTER_GUARD(descr) \
+ ((descr)->pointer_guard \
+ = THREAD_GETMEM (THREAD_SELF, pointer_guard))
+
# include <mach/machine/thread_status.h>
--
2.26.2
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