83 lines
2.6 KiB
Diff
83 lines
2.6 KiB
Diff
commit 59eda029a8a35e5f4e5cd7be0f84c6629e48ec6e
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Fri Feb 19 17:07:45 2016 +0100
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malloc: Remove NO_THREADS
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No functional change. It was not possible to build without
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threading support before.
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Index: b/malloc/arena.c
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===================================================================
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--- a/malloc/arena.c
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+++ b/malloc/arena.c
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@@ -135,8 +135,6 @@ int __malloc_initialized = -1;
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/**************************************************************************/
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-#ifndef NO_THREADS
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-
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/* atfork support. */
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static void *(*save_malloc_hook)(size_t __size, const void *);
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@@ -341,7 +339,6 @@ ptmalloc_unlock_all2 (void)
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# define ptmalloc_unlock_all2 ptmalloc_unlock_all
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# endif
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-#endif /* !NO_THREADS */
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/* Initialization routine. */
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#include <string.h>
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Index: b/malloc/malloc.c
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===================================================================
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -1074,10 +1074,8 @@ static void* realloc_check(void* oldme
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const void *caller);
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static void* memalign_check(size_t alignment, size_t bytes,
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const void *caller);
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-#ifndef NO_THREADS
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static void* malloc_atfork(size_t sz, const void *caller);
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static void free_atfork(void* mem, const void *caller);
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-#endif
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/* ------------------ MMAP support ------------------ */
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Index: b/sysdeps/generic/malloc-machine.h
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===================================================================
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--- a/sysdeps/generic/malloc-machine.h
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+++ b/sysdeps/generic/malloc-machine.h
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@@ -22,30 +22,9 @@
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#include <atomic.h>
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-#ifndef mutex_init /* No threads, provide dummy macros */
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+#ifndef mutex_init
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-# define NO_THREADS
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-
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-/* The mutex functions used to do absolutely nothing, i.e. lock,
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- trylock and unlock would always just return 0. However, even
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- without any concurrently active threads, a mutex can be used
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- legitimately as an `in use' flag. To make the code that is
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- protected by a mutex async-signal safe, these macros would have to
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- be based on atomic test-and-set operations, for example. */
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-typedef int mutex_t;
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-
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-# define mutex_init(m) (*(m) = 0)
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-# define mutex_lock(m) ({ *(m) = 1; 0; })
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-# define mutex_trylock(m) (*(m) ? 1 : ((*(m) = 1), 0))
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-# define mutex_unlock(m) (*(m) = 0)
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-# define MUTEX_INITIALIZER (0)
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-
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-typedef void *tsd_key_t;
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-# define tsd_key_create(key, destr) do {} while(0)
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-# define tsd_setspecific(key, data) ((key) = (data))
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-# define tsd_getspecific(key, vptr) (vptr = (key))
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-
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-# define thread_atfork(prepare, parent, child) do {} while(0)
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+#error NO_THREADS no longer supported
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#endif /* !defined mutex_init */
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