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authorUlrich Drepper <drepper@redhat.com>2005-12-20 15:28:51 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-20 15:28:51 +0000
commitd9038ff837089bcef3623b362cbe8ea5e96b2d87 (patch)
treeed44d5c34146eb88152bc4fb92731f2d09198f06 /nptl/sysdeps
parent35259015841308f7db2bc05a5664fcaab506e6ff (diff)
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* sysdeps/unix/sysv/linux/sh/sysdep.h: Include tls.h.
(PTR_MANGLE, PTR_DEMANGLE): Define. (SYSCALL_ERROR_HANDLER): Fix typo. * sysdeps/sh/sh4/__longjmp.S: Use PTR_DEMANGLE if defined. * sysdeps/sh/sh3/__longjmp.S: Likewise. * sysdeps/sh/sh4/setjmp.S: Use PTR_MANGLE if defined. * sysdeps/sh/sh3/setjmp.S: Likewise.
Diffstat (limited to 'nptl/sysdeps')
-rw-r--r--nptl/sysdeps/sh/tcb-offsets.sym1
-rw-r--r--nptl/sysdeps/sh/tls.h15
2 files changed, 15 insertions, 1 deletions
diff --git a/nptl/sysdeps/sh/tcb-offsets.sym b/nptl/sysdeps/sh/tcb-offsets.sym
index 539789a..4ad8663 100644
--- a/nptl/sysdeps/sh/tcb-offsets.sym
+++ b/nptl/sysdeps/sh/tcb-offsets.sym
@@ -9,3 +9,4 @@ CLEANUP_JMP_BUF offsetof (struct pthread, cleanup_jmp_buf)
MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads)
TLS_PRE_TCB_SIZE sizeof (struct pthread)
MUTEX_FUTEX offsetof (pthread_mutex_t, __data.__lock)
+POINTER_GUARD offsetof (tcbhead_t, pointer_guard)
diff --git a/nptl/sysdeps/sh/tls.h b/nptl/sysdeps/sh/tls.h
index e883bae..49d1055 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 */