diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/ChangeLog | 14 | ||||
| -rw-r--r-- | nptl/allocatestack.c | 8 | ||||
| -rw-r--r-- | nptl/sysdeps/i386/tls.h | 11 | ||||
| -rw-r--r-- | nptl/sysdeps/powerpc/tls.h | 28 | ||||
| -rw-r--r-- | nptl/sysdeps/x86_64/tls.h | 1 |
5 files changed, 46 insertions, 16 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 8198f00e0a..50042d6927 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,17 @@ +2007-05-24 Jakub Jelinek <jakub@redhat.com> + + * sysdeps/powerpc/tls.h (tcbhead_t): Add gscope_flag. + (THREAD_GSCOPE_FLAG_UNUSED, THREAD_GSCOPE_FLAG_USED, + THREAD_GSCOPE_FLAG_WAIT): Define. + (THREAD_GSCOPE_GET_FLAG, THREAD_GSCOPE_SET_FLAG, + THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_WAIT): Define. + * sysdeps/i386/tls.h (THREAD_GSCOPE_WAIT): Don't use + PTR_DEMANGLE. + (THREAD_GSCOPE_GET_FLAG): Define. + * sysdeps/x86_64/tls.h (THREAD_GSCOPE_GET_FLAG): Define. + * allocatestack.c (__wait_lookup_done): Use THREAD_GSCOPE_GET_FLAG + instead of ->header.gscope_flag directly. + 2007-05-23 Ulrich Drepper <drepper@redhat.com> * init.c (__pthread_initialize_minimal_internal): Check whether diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index 5dac000d6e..9c9372b2a8 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -1023,10 +1023,10 @@ __wait_lookup_done (void) list_for_each (runp, &stack_used) { struct pthread *t = list_entry (runp, struct pthread, list); - if (t == self || t->header.gscope_flag == THREAD_GSCOPE_FLAG_UNUSED) + if (t == self || THREAD_GSCOPE_GET_FLAG (t) == THREAD_GSCOPE_FLAG_UNUSED) continue; - int *const gscope_flagp = &t->header.gscope_flag; + int *const gscope_flagp = &THREAD_GSCOPE_GET_FLAG (t); /* We have to wait until this thread is done with the global scope. First tell the thread that we are waiting and @@ -1045,10 +1045,10 @@ __wait_lookup_done (void) list_for_each (runp, &__stack_user) { struct pthread *t = list_entry (runp, struct pthread, list); - if (t == self || t->header.gscope_flag == THREAD_GSCOPE_FLAG_UNUSED) + if (t == self || THREAD_GSCOPE_GET_FLAG (t) == THREAD_GSCOPE_FLAG_UNUSED) continue; - int *const gscope_flagp = &t->header.gscope_flag; + int *const gscope_flagp = &THREAD_GSCOPE_GET_FLAG (t); /* We have to wait until this thread is done with the global scope. First tell the thread that we are waiting and diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h index 3bdf0f2b04..41e4327b4a 100644 --- a/nptl/sysdeps/i386/tls.h +++ b/nptl/sysdeps/i386/tls.h @@ -454,16 +454,9 @@ union user_desc_init while (0) #define THREAD_GSCOPE_SET_FLAG() \ THREAD_SETMEM (THREAD_SELF, header.gscope_flag, THREAD_GSCOPE_FLAG_USED) -#ifdef PTR_DEMANGLE -# define THREAD_GSCOPE_WAIT() \ - do { void (*ptr) (void) = GL(dl_wait_lookup_done); \ - PTR_DEMANGLE (ptr); \ - ptr (); \ - } while (0) -#else -# define THREAD_GSCOPE_WAIT() \ +#define THREAD_GSCOPE_GET_FLAG(descr) (descr)->header.gscope_flag +#define THREAD_GSCOPE_WAIT() \ GL(dl_wait_lookup_done) () -#endif #endif /* __ASSEMBLER__ */ diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h index ddaafe23d0..136fe2a100 100644 --- a/nptl/sysdeps/powerpc/tls.h +++ b/nptl/sysdeps/powerpc/tls.h @@ -1,5 +1,5 @@ /* Definition for thread-local data handling. NPTL/PowerPC version. - Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2003, 2005, 2006, 2007 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 @@ -63,10 +63,11 @@ typedef union dtv # include <nptl/descr.h> /* The stack_guard is accessed directly by GCC -fstack-protector code, - so it is a part of public ABI. The dtv and pointer_guard fields - are private. */ + so it is a part of public ABI. The dtv, pointer_guard and gscope_flag + fields are private. */ typedef struct { + int gscope_flag; uintptr_t pointer_guard; uintptr_t stack_guard; dtv_t *dtv; @@ -180,6 +181,27 @@ register void *__thread_register __asm__ ("r13"); different value to mean unset l_tls_offset. */ # define NO_TLS_OFFSET -1 +/* Get and set the global scope generation counter in the TCB head. */ +#define THREAD_GSCOPE_FLAG_UNUSED 0 +#define THREAD_GSCOPE_FLAG_USED 1 +#define THREAD_GSCOPE_FLAG_WAIT 2 +#define THREAD_GSCOPE_GET_FLAG(descr) \ + (((tcbhead_t *) ((char *) (descr) \ + + TLS_PRE_TCB_SIZE))[-1].gscope_flag) +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + { int __res \ + = atomic_exchange_rel (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF), \ + THREAD_GSCOPE_FLAG_UNUSED); \ + if (__res == THREAD_GSCOPE_FLAG_WAIT) \ + lll_futex_wake (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF), 1); \ + } \ + while (0) +#define THREAD_GSCOPE_SET_FLAG() \ + (THREAD_GSCOPE_GET_FLAG (THREAD_SELF) = THREAD_GSCOPE_FLAG_USED) +#define THREAD_GSCOPE_WAIT() \ + GL(dl_wait_lookup_done) () + #endif /* __ASSEMBLER__ */ #endif /* tls.h */ diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h index 5ddaafadad..ab6efc47c3 100644 --- a/nptl/sysdeps/x86_64/tls.h +++ b/nptl/sysdeps/x86_64/tls.h @@ -360,6 +360,7 @@ typedef struct while (0) #define THREAD_GSCOPE_SET_FLAG() \ THREAD_SETMEM (THREAD_SELF, header.gscope_flag, THREAD_GSCOPE_FLAG_USED) +#define THREAD_GSCOPE_GET_FLAG(descr) (descr)->header.gscope_flag #define THREAD_GSCOPE_WAIT() \ GL(dl_wait_lookup_done) () |