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authorUlrich Drepper <drepper@redhat.com>2005-07-07 06:10:18 +0000
committerUlrich Drepper <drepper@redhat.com>2005-07-07 06:10:18 +0000
commit253eb3a0acfae12863c40ef6c6b0128d5b0dc02b (patch)
tree518cbd1b8d05996f4eb31a0cfbbf8789844fcb69 /nptl/sysdeps/ia64/tls.h
parent587d6ddc60bbdf561be3f217280220af9102c3e8 (diff)
downloadglibc-253eb3a0acfae12863c40ef6c6b0128d5b0dc02b.tar.gz
* elf/stackguard-macros.h (STACK_CHK_GUARD): Fix s390/s390x definition.
Reported by Ulrich Weigand <uweigand@de.ibm.com>. * elf/stackguard-macros.h (STACK_CHK_GUARD): Add ia64 definition.
Diffstat (limited to 'nptl/sysdeps/ia64/tls.h')
-rw-r--r--nptl/sysdeps/ia64/tls.h26
1 files changed, 21 insertions, 5 deletions
diff --git a/nptl/sysdeps/ia64/tls.h b/nptl/sysdeps/ia64/tls.h
index a435f966ca..e3ad0681d6 100644
--- a/nptl/sysdeps/ia64/tls.h
+++ b/nptl/sysdeps/ia64/tls.h
@@ -80,8 +80,15 @@ register struct pthread *__thread_self __asm__("r13");
/* This is the size of the TCB. */
# define TLS_TCB_SIZE sizeof (tcbhead_t)
-/* This is the size we need before TCB. */
-# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
+/* This is the size we need before TCB.
+ If there is not any room for uintptr_t stack_guard in struct pthread's
+ final padding, we need to put struct pthread 16 byte slower. */
+# define TLS_PRE_TCB_SIZE \
+ (sizeof (struct pthread) \
+ + (PTHREAD_STRUCT_END_PADDING < sizeof (uintptr_t) \
+ ? ((sizeof (uintptr_t) + __alignof__ (struct pthread) - 1)\
+ & ~(__alignof__ (struct pthread) - 1)) \
+ : 0))
/* Alignment requirements for the TCB. */
# define TLS_TCB_ALIGN __alignof__ (struct pthread)
@@ -106,7 +113,8 @@ register struct pthread *__thread_self __asm__("r13");
(((tcbhead_t *) (descr))->dtv)
#define THREAD_SELF_SYSINFO (((tcbhead_t *) __thread_self)->private)
-#define THREAD_SYSINFO(pd) (((tcbhead_t *) ((pd) + 1))->private)
+#define THREAD_SYSINFO(pd) \
+ (((tcbhead_t *) ((char *) (pd) + TLS_PRE_TCB_SIZE))->private)
#if defined NEED_DL_SYSINFO
# define INIT_SYSINFO THREAD_SELF_SYSINFO = (void *) GLRO(dl_sysinfo)
@@ -125,10 +133,11 @@ register struct pthread *__thread_self __asm__("r13");
(((tcbhead_t *)__thread_self)->dtv)
/* Return the thread descriptor for the current thread. */
-# define THREAD_SELF (__thread_self - 1)
+# define THREAD_SELF \
+ ((struct pthread *) ((char *) __thread_self - TLS_PRE_TCB_SIZE))
/* Magic for libthread_db to know how to do THREAD_SELF. */
-# define DB_THREAD_SELF REGISTER (64, 64, 13 * 8, -sizeof (struct pthread))
+# define DB_THREAD_SELF REGISTER (64, 64, 13 * 8, -TLS_PRE_TCB_SIZE)
/* Access to data in the thread descriptor is easy. */
#define THREAD_GETMEM(descr, member) \
@@ -140,6 +149,13 @@ register struct pthread *__thread_self __asm__("r13");
#define THREAD_SETMEM_NC(descr, member, idx, value) \
descr->member[idx] = (value)
+/* Set the stack guard field in TCB head. */
+#define THREAD_SET_STACK_GUARD(value) \
+ (((uintptr_t *) __thread_self)[-1] = (value))
+#define THREAD_COPY_STACK_GUARD(descr) \
+ (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-1] \
+ = ((uintptr_t *) __thread_self)[-1])
+
#endif /* __ASSEMBLER__ */
#endif /* tls.h */