154 lines
3.6 KiB
C
154 lines
3.6 KiB
C
/*
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FUNCTION
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<<__retarget_lock_init>>, <<__retarget_lock_init_recursive>>, <<__retarget_lock_close>>, <<__retarget_lock_close_recursive>>, <<__retarget_lock_acquire>>, <<__retarget_lock_acquire_recursive>>, <<__retarget_lock_try_acquire>>, <<__retarget_lock_try_acquire_recursive>>, <<__retarget_lock_release>>, <<__retarget_lock_release_recursive>>---locking routines
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INDEX
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__lock___sfp_recursive_mutex
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INDEX
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__lock___atexit_recursive_mutex
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INDEX
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__lock___at_quick_exit_mutex
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INDEX
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__lock___malloc_recursive_mutex
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INDEX
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__lock___env_recursive_mutex
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INDEX
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__lock___tz_mutex
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INDEX
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__lock___dd_hash_mutex
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INDEX
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__lock___arc4random_mutex
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INDEX
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__retarget_lock_init
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INDEX
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__retarget_lock_init_recursive
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INDEX
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__retarget_lock_close
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INDEX
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__retarget_lock_close_recursive
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INDEX
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__retarget_lock_acquire
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INDEX
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__retarget_lock_acquire_recursive
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INDEX
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__retarget_lock_try_acquire
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INDEX
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__retarget_lock_try_acquire_recursive
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INDEX
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__retarget_lock_release
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INDEX
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__retarget_lock_release_recursive
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SYNOPSIS
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#include <lock.h>
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struct __lock __lock___sfp_recursive_mutex;
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struct __lock __lock___atexit_recursive_mutex;
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struct __lock __lock___at_quick_exit_mutex;
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struct __lock __lock___malloc_recursive_mutex;
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struct __lock __lock___env_recursive_mutex;
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struct __lock __lock___tz_mutex;
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struct __lock __lock___dd_hash_mutex;
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struct __lock __lock___arc4random_mutex;
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void __retarget_lock_init (_LOCK_T * <[lock_ptr]>);
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void __retarget_lock_init_recursive (_LOCK_T * <[lock_ptr]>);
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void __retarget_lock_close (_LOCK_T <[lock]>);
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void __retarget_lock_close_recursive (_LOCK_T <[lock]>);
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void __retarget_lock_acquire (_LOCK_T <[lock]>);
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void __retarget_lock_acquire_recursive (_LOCK_T <[lock]>);
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int __retarget_lock_try_acquire (_LOCK_T <[lock]>);
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int __retarget_lock_try_acquire_recursive (_LOCK_T <[lock]>);
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void __retarget_lock_release (_LOCK_T <[lock]>);
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void __retarget_lock_release_recursive (_LOCK_T <[lock]>);
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DESCRIPTION
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Newlib was configured to allow the target platform to provide the locking
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routines and static locks at link time. As such, a dummy default
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implementation of these routines and static locks is provided for
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single-threaded application to link successfully out of the box on bare-metal
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systems.
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For multi-threaded applications the target platform is required to provide
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an implementation for @strong{all} these routines and static locks. If some
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routines or static locks are missing, the link will fail with doubly defined
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symbols.
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PORTABILITY
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These locking routines and static lock are newlib-specific. Supporting OS
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subroutines are required for linking multi-threaded applications.
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*/
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/* dummy lock routines and static locks for single-threaded apps */
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#ifndef __SINGLE_THREAD__
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#include <sys/lock.h>
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struct __lock {
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char unused;
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};
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struct __lock __lock___sfp_recursive_mutex;
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struct __lock __lock___atexit_recursive_mutex;
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struct __lock __lock___at_quick_exit_mutex;
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struct __lock __lock___malloc_recursive_mutex;
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struct __lock __lock___env_recursive_mutex;
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struct __lock __lock___tz_mutex;
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struct __lock __lock___dd_hash_mutex;
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struct __lock __lock___arc4random_mutex;
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void
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__retarget_lock_init (_LOCK_T *lock)
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{
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}
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void
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__retarget_lock_init_recursive(_LOCK_T *lock)
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{
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}
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void
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__retarget_lock_close(_LOCK_T lock)
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{
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}
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void
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__retarget_lock_close_recursive(_LOCK_T lock)
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{
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}
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void
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__retarget_lock_acquire (_LOCK_T lock)
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{
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}
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void
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__retarget_lock_acquire_recursive (_LOCK_T lock)
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{
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}
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int
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__retarget_lock_try_acquire(_LOCK_T lock)
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{
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return 1;
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}
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int
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__retarget_lock_try_acquire_recursive(_LOCK_T lock)
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{
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return 1;
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}
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void
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__retarget_lock_release (_LOCK_T lock)
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{
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}
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void
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__retarget_lock_release_recursive (_LOCK_T lock)
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{
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}
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#endif /* !defined(__SINGLE_THREAD__) */
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