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authorUlrich Drepper <drepper@redhat.com>2004-03-11 09:39:56 +0000
committerUlrich Drepper <drepper@redhat.com>2004-03-11 09:39:56 +0000
commit754af0b1cac36de63d9525c91b1d9bf687ea05f7 (patch)
tree7893fcc550b8ddc296662d2bddf7e822a0f738bf /sysdeps/s390
parentc9b2a0cf5856f7b31f62da24464adc3141102a6d (diff)
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Update.
2004-03-11 Jakub Jelinek <jakub@redhat.com> * sysdeps/s390/dl-tls.h: Only add __tls_get_offset assembly if IS_IN_rtld. (__TLS_GET_ADDR): Use __tls_get_offset, not __tls_get_addr.
Diffstat (limited to 'sysdeps/s390')
-rw-r--r--sysdeps/s390/dl-tls.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/sysdeps/s390/dl-tls.h b/sysdeps/s390/dl-tls.h
index fbd85c1753..0560462857 100644
--- a/sysdeps/s390/dl-tls.h
+++ b/sysdeps/s390/dl-tls.h
@@ -1,5 +1,5 @@
/* Thread-local storage handling in the ELF dynamic linker. s390 version.
- Copyright (C) 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -31,6 +31,7 @@ typedef struct
extern void *__tls_get_addr (tls_index *ti) attribute_hidden;
extern unsigned long __tls_get_offset (unsigned long got_offset);
+# ifdef IS_IN_rtld
/* The special thing about the s390 TLS ABI is that we do not have the
standard __tls_get_addr function but the __tls_get_offset function
which differs in two important aspects:
@@ -39,7 +40,7 @@ extern unsigned long __tls_get_offset (unsigned long got_offset);
2) __tls_get_offset returns the offset of the requested variable to
the thread descriptor instead of a pointer to the variable.
*/
-#if defined __s390x__
+# ifdef __s390x__
asm("\n\
.text\n\
.globl __tls_get_offset\n\
@@ -49,7 +50,7 @@ __tls_get_offset:\n\
la %r2,0(%r2,%r12)\n\
jg __tls_get_addr\n\
");
-#elif defined __s390__
+# elif defined __s390__
asm("\n\
.text\n\
.globl __tls_get_offset\n\
@@ -62,12 +63,15 @@ __tls_get_offset:\n\
b 0(%r4,%r3)\n\
1: .long __tls_get_addr - 0b\n\
");
-#endif
+# endif
+# endif
-#define GET_ADDR_OFFSET \
+# define GET_ADDR_OFFSET \
(ti->ti_offset - (unsigned long) __builtin_thread_pointer ())
-#define __TLS_GET_ADDR(__ti) \
- (__tls_get_addr(__ti) + (unsigned long) __builtin_thread_pointer ())
+# define __TLS_GET_ADDR(__ti) \
+ ({ extern char _GLOBAL_OFFSET_TABLE_[] attribute_hidden; \
+ (void *) __tls_get_offset ((char *) (__ti) - _GLOBAL_OFFSET_TABLE_) \
+ + (unsigned long) __builtin_thread_pointer (); })
#endif