diff options
Diffstat (limited to 'meta/recipes-core/uclibc/uclibc-0.9.30.1/linuxthreads-changes.patch')
| -rw-r--r-- | meta/recipes-core/uclibc/uclibc-0.9.30.1/linuxthreads-changes.patch | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/meta/recipes-core/uclibc/uclibc-0.9.30.1/linuxthreads-changes.patch b/meta/recipes-core/uclibc/uclibc-0.9.30.1/linuxthreads-changes.patch new file mode 100644 index 0000000000..f6f32cdd29 --- /dev/null +++ b/meta/recipes-core/uclibc/uclibc-0.9.30.1/linuxthreads-changes.patch @@ -0,0 +1,291 @@ +Index: uClibc/libpthread/linuxthreads/descr.h +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/descr.h 2008-08-27 23:59:46.171809044 +0200 ++++ uClibc/libpthread/linuxthreads/descr.h 2008-08-28 00:00:35.435134759 +0200 +@@ -123,9 +123,9 @@ + union dtv *dtvp; + pthread_descr self; /* Pointer to this structure */ + int multiple_threads; +-# ifdef NEED_DL_SYSINFO + uintptr_t sysinfo; +-# endif ++ uintptr_t stack_guard; ++ uintptr_t pointer_guard; + } data; + void *__padding[16]; + } p_header; +@@ -193,6 +193,13 @@ + size_t p_alloca_cutoff; /* Maximum size which should be allocated + using alloca() instead of malloc(). */ + /* New elements must be added at the end. */ ++ ++ /* This member must be last. */ ++ char end_padding[]; ++ ++#define PTHREAD_STRUCT_END_PADDING \ ++ (sizeof (struct _pthread_descr_struct) \ ++ - offsetof (struct _pthread_descr_struct, end_padding)) + } __attribute__ ((aligned(32))); /* We need to align the structure so that + doubles are aligned properly. This is 8 + bytes on MIPS and 16 bytes on MIPS64. +Index: uClibc/libpthread/linuxthreads/manager.c +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/manager.c 2008-08-27 23:59:54.185140485 +0200 ++++ uClibc/libpthread/linuxthreads/manager.c 2008-08-28 00:00:35.435134759 +0200 +@@ -679,6 +679,17 @@ + new_thread->p_inheritsched = attr ? attr->__inheritsched : 0; + new_thread->p_alloca_cutoff = stksize / 4 > __MAX_ALLOCA_CUTOFF + ? __MAX_ALLOCA_CUTOFF : stksize / 4; ++ ++ /* Copy the stack guard canary. */ ++#ifdef THREAD_COPY_STACK_GUARD ++ THREAD_COPY_STACK_GUARD (new_thread); ++#endif ++ ++ /* Copy the pointer guard value. */ ++#ifdef THREAD_COPY_POINTER_GUARD ++ THREAD_COPY_POINTER_GUARD (new_thread); ++#endif ++ + /* Initialize the thread handle */ + __pthread_init_lock(&__pthread_handles[sseg].h_lock); + __pthread_handles[sseg].h_descr = new_thread; +@@ -742,15 +753,15 @@ + pid = __clone2(pthread_start_thread_event, + (void **)new_thread_bottom, + (char *)stack_addr - new_thread_bottom, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #elif _STACK_GROWS_UP + pid = __clone(pthread_start_thread_event, (void *) new_thread_bottom, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #else + pid = __clone(pthread_start_thread_event, stack_addr, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #endif + saved_errno = errno; +@@ -783,15 +794,15 @@ + pid = __clone2(pthread_start_thread, + (void **)new_thread_bottom, + (char *)stack_addr - new_thread_bottom, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #elif _STACK_GROWS_UP + pid = __clone(pthread_start_thread, (void *) new_thread_bottom, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #else + pid = __clone(pthread_start_thread, stack_addr, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM | + __pthread_sig_cancel, new_thread); + #endif /* !NEED_SEPARATE_REGISTER_STACK */ + saved_errno = errno; +@@ -892,10 +903,11 @@ + #ifdef _STACK_GROWS_UP + # ifdef USE_TLS + size_t stacksize = guardaddr - th->p_stackaddr; ++ guardaddr = th->p_stackaddr; + # else + size_t stacksize = guardaddr - (char *)th; +-# endif + guardaddr = (char *)th; ++# endif + #else + /* Guardaddr is always set, even if guardsize is 0. This allows + us to compute everything else. */ +Index: uClibc/libpthread/linuxthreads/pthread.c +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/pthread.c 2008-08-28 00:00:00.825141935 +0200 ++++ uClibc/libpthread/linuxthreads/pthread.c 2008-08-28 00:00:35.438472147 +0200 +@@ -698,6 +698,16 @@ + mgr = &__pthread_manager_thread; + #endif + ++ /* Copy the stack guard canary. */ ++#ifdef THREAD_COPY_STACK_GUARD ++ THREAD_COPY_STACK_GUARD (mgr); ++#endif ++ ++ /* Copy the pointer guard value. */ ++#ifdef THREAD_COPY_POINTER_GUARD ++ THREAD_COPY_POINTER_GUARD (mgr); ++#endif ++ + __pthread_manager_request = manager_pipe[1]; /* writing end */ + __pthread_manager_reader = manager_pipe[0]; /* reading end */ + +@@ -738,17 +748,17 @@ + pid = __clone2(__pthread_manager_event, + (void **) __pthread_manager_thread_bos, + THREAD_MANAGER_STACK_SIZE, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, + mgr); + #elif _STACK_GROWS_UP + pid = __clone(__pthread_manager_event, + (void **) __pthread_manager_thread_bos, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, + mgr); + #else + pid = __clone(__pthread_manager_event, + (void **) __pthread_manager_thread_tos, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, + mgr); + #endif + +@@ -778,13 +788,13 @@ + #ifdef NEED_SEPARATE_REGISTER_STACK + pid = __clone2(__pthread_manager, (void **) __pthread_manager_thread_bos, + THREAD_MANAGER_STACK_SIZE, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, mgr); + #elif _STACK_GROWS_UP + pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_bos, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, mgr); + #else + pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos, +- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); ++ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | CLONE_SYSVSEM, mgr); + #endif + } + if (__builtin_expect (pid, 0) == -1) { +@@ -971,6 +981,10 @@ + struct pthread_request request; + pthread_descr self = thread_self(); + ++ /* Make sure we come back here after suspend(), in case we entered ++ from a signal handler. */ ++ THREAD_SETMEM(self, p_signal_jmp, NULL); ++ + request.req_thread = self; + request.req_kind = REQ_PROCESS_EXIT; + request.req_args.exit.code = retcode; +@@ -1198,13 +1212,13 @@ + + void __pthread_restart_old(pthread_descr th) + { +- if (atomic_increment(&th->p_resume_count) == -1) ++ if (pthread_atomic_increment(&th->p_resume_count) == -1) + kill(th->p_pid, __pthread_sig_restart); + } + + void __pthread_suspend_old(pthread_descr self) + { +- if (atomic_decrement(&self->p_resume_count) <= 0) ++ if (pthread_atomic_decrement(&self->p_resume_count) <= 0) + __pthread_wait_for_restart_signal(self); + } + +@@ -1215,7 +1229,7 @@ + int was_signalled = 0; + sigjmp_buf jmpbuf; + +- if (atomic_decrement(&self->p_resume_count) == 0) { ++ if (pthread_atomic_decrement(&self->p_resume_count) == 0) { + /* Set up a longjmp handler for the restart signal, unblock + the signal and sleep. */ + +@@ -1272,9 +1286,9 @@ + being delivered. */ + + if (!was_signalled) { +- if (atomic_increment(&self->p_resume_count) != -1) { ++ if (pthread_atomic_increment(&self->p_resume_count) != -1) { + __pthread_wait_for_restart_signal(self); +- atomic_decrement(&self->p_resume_count); /* should be zero now! */ ++ pthread_atomic_decrement(&self->p_resume_count); /* should be zero now! */ + /* woke spontaneously and consumed restart signal */ + return 1; + } +Index: uClibc/libpthread/linuxthreads/specific.c +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/specific.c 2008-08-28 00:00:07.595139286 +0200 ++++ uClibc/libpthread/linuxthreads/specific.c 2008-08-28 00:00:35.438472147 +0200 +@@ -104,13 +104,14 @@ + that if the key is reallocated later by pthread_key_create, its + associated values will be NULL in all threads. + +- If no threads have been created yet, clear it just in the +- current thread. */ ++ If no threads have been created yet, or if we are exiting, clear ++ it just in the current thread. */ + + struct pthread_key_delete_helper_args args; + args.idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE; + args.idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE; +- if (__pthread_manager_request != -1) ++ if (__pthread_manager_request != -1 ++ && !(__builtin_expect (__pthread_exit_requested, 0))) + { + struct pthread_request request; + +@@ -203,8 +204,9 @@ + __pthread_lock(THREAD_GETMEM(self, p_lock), self); + for (i = 0; i < PTHREAD_KEY_1STLEVEL_SIZE; i++) { + if (THREAD_GETMEM_NC(self, p_specific[i]) != NULL) { +- free(THREAD_GETMEM_NC(self, p_specific[i])); ++ void *p = THREAD_GETMEM_NC(self, p_specific[i]); + THREAD_SETMEM_NC(self, p_specific[i], NULL); ++ free(p); + } + } + __pthread_unlock(THREAD_GETMEM(self, p_lock)); +Index: uClibc/libpthread/linuxthreads/spinlock.c +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/spinlock.c 2008-08-28 00:00:17.805140454 +0200 ++++ uClibc/libpthread/linuxthreads/spinlock.c 2008-08-28 00:00:35.438472147 +0200 +@@ -637,8 +637,20 @@ + #if defined HAS_COMPARE_AND_SWAP + wait_node_dequeue(pp_head, pp_max_prio, p_max_prio); + #endif ++ ++ /* Release the spinlock before restarting. */ ++#if defined TEST_FOR_COMPARE_AND_SWAP ++ if (!__pthread_has_cas) ++#endif ++#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP ++ { ++ __pthread_release(&lock->__spinlock); ++ } ++#endif ++ + restart(p_max_prio->thr); +- break; ++ ++ return; + } + } + +Index: uClibc/libpthread/linuxthreads/spinlock.h +=================================================================== +--- uClibc.orig/libpthread/linuxthreads/spinlock.h 2008-08-28 00:00:24.768471655 +0200 ++++ uClibc/libpthread/linuxthreads/spinlock.h 2008-08-28 00:02:42.971786951 +0200 +@@ -172,7 +172,7 @@ + + /* Operations on pthread_atomic, which is defined in internals.h */ + +-static __inline__ long atomic_increment(struct pthread_atomic *pa) ++static __inline__ long pthread_atomic_increment(struct pthread_atomic *pa) + { + long oldval; + +@@ -184,7 +184,7 @@ + } + + +-static __inline__ long atomic_decrement(struct pthread_atomic *pa) ++static __inline__ long pthread_atomic_decrement(struct pthread_atomic *pa) + { + long oldval; + |