2003-04-22 Jakub Jelinek <jakub@redhat.com>
- * descr.h (p_multiple_threads): Define as function-like macro.
- (struct _pthread_descr_struct) [TLS_MULTIPLE_THREADS_IN_TCB]:
- Move multiple_threads to last int in the structure.
- * pthread.c (__pthread_initialize_manager): Use p_multiple_threads
- macro. Subtract TLS_PRE_TCB_SIZE bytes from tcbp to get to descr.
- * manager.c (pthread_handle_create): Use p_multiple_threads macro.
- Subtract or add TLS_PRE_TCB_SIZE instead of sizeof (pthread_descr).
- (pthread_free): Add TLS_PRE_TCB_SIZE instead of
- sizeof (pthread_descr).
- * sysdeps/powerpc/tls.h: Don't include tcb-offsets.h.
- (TLS_INIT_TCB_SIZE, TLS_TCB_SIZE): Define to 0.
+ * pthread.c (__pthread_initialize_manager): Subtract
+ TLS_PRE_TCB_SIZE bytes from tcbp to get to descr.
+ * manager.c (pthread_handle_create): Subtract or add TLS_PRE_TCB_SIZE
+ instead of sizeof (pthread_descr).
+ (pthread_free): Add TLS_PRE_TCB_SIZE instead of sizeof (pthread_descr).
+ * sysdeps/powerpc/tls.h (TLS_INIT_TCB_SIZE, TLS_TCB_SIZE): Define to 0.
(TLS_INIT_TCB_ALIGN, TLS_TCB_ALIGN): Define to alignment of
pthread_descr.
(TLS_PRE_TCB_SIZE): Increase to cover tcbhead_t preceeded by pad
(TLS_INIT_TP, THREAD_SELF, INIT_THREAD_SELF): Don't add TLS_TCB_SIZE
unneccessarily.
(NO_TLS_OFFSET): Define.
- * sysdeps/powerpc/powerpc32/tcb-offsets.sym: New file.
- * sysdeps/powerpc/tcb-offsets.sym: Removed.
- * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Include
- tcb-offsets.h if __ASSEMBLER__.
- (SINGLE_THREAD_P): Use p_multiple_threads macro.
- * sysdeps/ia64/tcb-offsets.sym (MULTIPLE_THREADS): Define to
- -sizeof(int).
- * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (SINGLE_THREAD_P):
- Use p_multiple_threads macro.
- * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (SINGLE_THREAD_P):
- Likewise.
- * sysdeps/sh/tcb-offsets.sym (MULTIPLE_THREADS): Likewise.
2003-04-22 Roland McGrath <roland@redhat.com>
new_thread->p_header.data.self = new_thread;
#endif
#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP
- p_multiple_threads (new_thread) = 1;
+ new_thread->p_multiple_threads = 1;
#endif
new_thread->p_tid = new_thread_id;
new_thread->p_lock = &(__pthread_handles[sseg].h_lock);
+++ /dev/null
-#include <sysdep.h>
-#include <tls.h>
-
---
-#ifdef USE_TLS
-MULTIPLE_THREADS_OFFSET ((void *) &p_multiple_threads ((pthread_descr) ((void *) 0 - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) - (void *) 0)
-#else
-MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
-#endif
--- /dev/null
+#include <sysdep.h>
+#include <tls.h>
+
+--
+
+-- This could go into powerpc32/ instead and conditionalize #include of it.
+#ifndef __powerpc64__
+
+# ifdef USE_TLS
+
+-- Abuse tls.h macros to derive offsets relative to the thread register.
+# undef __thread_register
+# define __thread_register ((void *) 0)
+# define thread_offsetof(mem) ((void *) &THREAD_SELF->p_##mem - (void *) 0)
+
+# else
+
+# define thread_offsetof(mem) offsetof (tcbhead_t, mem)
+
+# endif
+
+MULTIPLE_THREADS_OFFSET thread_offsetof (multiple_threads)
+
+#endif
# ifndef __ASSEMBLER__
# define SINGLE_THREAD_P \
- __builtin_expect (p_multiple_threads (THREAD_SELF) == 0, 1)
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14
2003-04-22 Jakub Jelinek <jakub@redhat.com>
- * descr.h (p_multiple_threads): Define.
- (struct pthread) [TLS_MULTIPLE_THREADS_IN_TCB]: Move
- multiple_threads to last int in the structure.
* allocatestack.c (TLS_TPADJ): Add TLS_PRE_TCB_SIZE instead of
sizeof (struct pthread).
(allocate_stack): Subtract TLS_PRE_TCB_SIZE bytes instead of
- 1 struct pthread. Use p_multiple_threads macro.
+ 1 struct pthread.
* sysdeps/pthread/createthread.c (create_thread): Use
p_multiple_threads macro if TLS_DTV_AT_TP.
* sysdeps/powerpc/tls.h (TLS_INIT_TCB_SIZE, TLS_TCB_SIZE): Define
(TLS_INIT_TP, THREAD_SELF, INIT_THREAD_SELF): Don't add TLS_TCB_SIZE
unneccessarily.
(NO_TLS_OFFSET): Define.
- * sysdeps/powerpc/tcb-offsets.sym (MULTIPLE_THREADS): Use
- p_multiple_threads macro.
- * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h
- (SINGLE_THREAD_P): Likewise.
- * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
- (SINGLE_THREAD_P): Likewise.
* sysdeps/unix/sysv/linux/powerpc/createthread.c (TLS_VALUE): Don't
add TLS_TCB_SIZE unnecessarily.
- * sysdeps/ia64/tcb-offsets.sym (MULTIPLE_THREADS): Define to
- -sizeof(int).
- * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (SINGLE_THREAD_P):
- Use p_multiple_threads macro.
- * sysdeps/sh/tcb-offsets.sym (MULTIPLE_THREADS): Likewise.
- * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (SINGLE_THREAD_P):
- Likewise.
2003-04-22 Roland McGrath <roland@redhat.com>
#ifdef TLS_MULTIPLE_THREADS_IN_TCB
/* This is at least the second thread. */
- p_multiple_threads (pd) = 1;
+ pd->header.multiple_threads = 1;
#else
__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
#endif
#ifdef TLS_MULTIPLE_THREADS_IN_TCB
/* This is at least the second thread. */
- p_multiple_threads (pd) = 1;
+ pd->header.multiple_threads = 1;
#else
__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
#endif
#if !TLS_DTV_AT_TP
/* This overlaps the TCB as used for TLS without threads (see tls.h). */
tcbhead_t header;
-# define p_multiple_threads(descr) (descr)->header.multiple_threads
+#elif TLS_MULTIPLE_THREADS_IN_TCB
+ struct
+ {
+ int multiple_threads;
+ } header;
#endif
/* This extra padding has no special purpose, and this structure layout
size_t stackblock_size;
/* Size of the included guard area. */
size_t guardsize;
-
-#if TLS_DTV_AT_TP && TLS_MULTIPLE_THREADS_IN_TCB
- /* Must come last. */
- int __multiple_threads;
-# define p_multiple_threads(descr) \
- ((union \
- { \
- struct pthread s; \
- struct \
- { \
- char dummy[sizeof (struct pthread) - sizeof (int)]; \
- int multiple_threads; \
- } m; \
- } *)(descr)->m.multiple_threads)
-#endif
} __attribute ((aligned (TCB_ALIGNMENT)));
#include <sysdep.h>
#include <tls.h>
-MULTIPLE_THREADS_OFFSET -sizeof(int)
+MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) - sizeof (struct pthread)
#include <sysdep.h>
#include <tls.h>
-MULTIPLE_THREADS_OFFSET ((void *) &p_multiple_threads ((struct pthread) ((void *) 0 - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) - (void *) 0)
+--
+
+-- Abuse tls.h macros to derive offsets relative to the thread register.
+# undef __thread_register
+# define __thread_register ((void *) 0)
+# define thread_offsetof(mem) ((void *) &THREAD_SELF->mem - (void *) 0)
+
+#if TLS_MULTIPLE_THREADS_IN_TCB
+MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
+#endif
# define TLS_TCB_ALIGN __alignof__ (struct pthread)
/* This is the size we need before TCB. */
-# define TLS_PRE_TCB_SIZE (sizeof (struct pthread) + 32)
+# define TLS_PRE_TCB_SIZE \
+ (sizeof (struct pthread) \
+ + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
# ifndef __powerpc64__
/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
thread might not yet have the flag set. No need to set
the global variable again if this is what we use. */
#ifdef TLS_MULTIPLE_THREADS_IN_TCB
-# if TLS_DTV_AT_TP
- p_multiple_threads (THREAD_SELF) = 1;
-# else
THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
-# endif
#endif
/* Now fill in the information about the new thread in
not yet have the flag set. No need to set the global variable
again if this is what we use. */
#ifdef TLS_MULTIPLE_THREADS_IN_TCB
-# if TLS_DTV_AT_TP
- p_multiple_threads (THREAD_SELF) = 1;
-# else
THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
-# endif
#endif
return 0;
#include <sysdep.h>
#include <tls.h>
-MULTIPLE_THREADS_OFFSET ((char *) &p_multiple_threads ((struct pthread *)0) - (char *) 0)
+MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads)
TLS_PRE_TCB_SIZE sizeof (struct pthread)
# ifndef __ASSEMBLER__
# define SINGLE_THREAD_P \
- __builtin_expect (p_multiple_threads (THREAD_SELF) == 0, 1)
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14
# ifndef __ASSEMBLER__
# define SINGLE_THREAD_P \
- __builtin_expect (p_multiple_threads (THREAD_SELF) == 0, 1)
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
lwz 10,MULTIPLE_THREADS_OFFSET(2); \
# ifndef __ASSEMBLER__
# define SINGLE_THREAD_P \
- __builtin_expect (p_multiple_threads (THREAD_SELF) == 0, 1)
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
lwz 10,MULTIPLE_THREADS_OFFSET(13); \
# ifndef __ASSEMBLER__
# define SINGLE_THREAD_P \
- __builtin_expect (p_multiple_threads (THREAD_SELF) == 0, 1)
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
stc gbr,r0; \
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