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Diffstat (limited to 'nptl/sysdeps/sh/tls.h')
-rw-r--r--nptl/sysdeps/sh/tls.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/nptl/sysdeps/sh/tls.h b/nptl/sysdeps/sh/tls.h
index e883bae993..49d105518a 100644
--- a/nptl/sysdeps/sh/tls.h
+++ b/nptl/sysdeps/sh/tls.h
@@ -41,7 +41,7 @@ typedef union dtv
typedef struct
{
dtv_t *dtv;
- void *private;
+ uintptr_t pointer_guard;
} tcbhead_t;
# define TLS_MULTIPLE_THREADS_IN_TCB 1
@@ -140,6 +140,19 @@ typedef struct
# define THREAD_SETMEM_NC(descr, member, idx, value) \
descr->member[idx] = (value)
+#define THREAD_GET_POINTER_GUARD() \
+ ({ tcbhead_t *__tcbp; \
+ __asm __volatile ("stc gbr,%0" : "=r" (__tcbp)); \
+ __tcbp->pointer_guard;})
+ #define THREAD_SET_POINTER_GUARD(value) \
+ ({ tcbhead_t *__tcbp; \
+ __asm __volatile ("stc gbr,%0" : "=r" (__tcbp)); \
+ __tcbp->pointer_guard = (value);})
+#define THREAD_COPY_POINTER_GUARD(descr) \
+ ({ tcbhead_t *__tcbp; \
+ __asm __volatile ("stc gbr,%0" : "=r" (__tcbp)); \
+ ((tcbhead_t *) (descr + 1))->pointer_guard = __tcbp->pointer_guard;})
+
#endif /* __ASSEMBLER__ */
#endif /* tls.h */