diff options
Diffstat (limited to 'nptl/sysdeps/i386')
| -rw-r--r-- | nptl/sysdeps/i386/tcb-offsets.sym | 1 | ||||
| -rw-r--r-- | nptl/sysdeps/i386/tls.h | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/nptl/sysdeps/i386/tcb-offsets.sym b/nptl/sysdeps/i386/tcb-offsets.sym index 4e0444ba38..7c8d9a5ca5 100644 --- a/nptl/sysdeps/i386/tcb-offsets.sym +++ b/nptl/sysdeps/i386/tcb-offsets.sym @@ -11,3 +11,4 @@ SYSINFO_OFFSET offsetof (tcbhead_t, sysinfo) CLEANUP offsetof (struct pthread, cleanup) CLEANUP_PREV offsetof (struct _pthread_cleanup_buffer, __prev) MUTEX_FUTEX offsetof (pthread_mutex_t, __data.__lock) +POINTER_GUARD offsetof (tcbhead_t, pointer_guard) diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h index 65566ff7a7..a870a848cf 100644 --- a/nptl/sysdeps/i386/tls.h +++ b/nptl/sysdeps/i386/tls.h @@ -50,6 +50,7 @@ typedef struct int multiple_threads; uintptr_t sysinfo; uintptr_t stack_guard; + uintptr_t pointer_guard; } tcbhead_t; # define TLS_MULTIPLE_THREADS_IN_TCB 1 @@ -425,6 +426,14 @@ union user_desc_init = THREAD_GETMEM (THREAD_SELF, header.stack_guard)) +/* Set the pointer guard field in the TCB head. */ +#define THREAD_SET_POINTER_GUARD(value) \ + THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value) +#define THREAD_COPY_POINTER_GUARD(descr) \ + ((descr)->header.pointer_guard \ + = THREAD_GETMEM (THREAD_SELF, header.pointer_guard)) + + #endif /* __ASSEMBLER__ */ #endif /* tls.h */ |