mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-12-23 03:53:43 +01:00
Allow caller to block signals.
Greetings, Here is the second part, actually implementing the configure option. Thanks, -- Paul Pluzhnikov commit cf823ed0d4d2447aa91af0e3cb5fbb6a6cba5068 Author: Paul Pluzhnikov <ppluzhnikov@google.com> Date: Mon Sep 21 11:37:38 2009 -0700 New configure option to allow caller to block signals.
This commit is contained in:
parent
84d4150668
commit
9aa0d6d680
2 changed files with 17 additions and 2 deletions
|
@ -139,6 +139,14 @@ if test x$enable_debug_frame = xyes; then
|
|||
AC_DEFINE([CONFIG_DEBUG_FRAME], [], [Enable Debug Frame])
|
||||
fi
|
||||
|
||||
AC_ARG_ENABLE(block_signals,
|
||||
[ --enable-block-signals Block signals before performing mutex operations],
|
||||
[enable_block_signals=$enableval], [enable_block_signals=yes])
|
||||
if test x$enable_block_signals = xyes; then
|
||||
AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex operations])
|
||||
fi
|
||||
|
||||
|
||||
LIBUNWIND___THREAD
|
||||
|
||||
save_LDFLAGS="$LDFLAGS"
|
||||
|
|
|
@ -178,18 +178,25 @@ typedef sigset_t intrmask_t;
|
|||
|
||||
extern intrmask_t unwi_full_mask;
|
||||
|
||||
#if defined(CONFIG_BLOCK_SIGNALS)
|
||||
# define SIGPROCMASK(how, old_mask, new_mask) \
|
||||
sigprocmask((how), (old_mask), (new_mask))
|
||||
#else
|
||||
# define SIGPROCMASK(how, old_mask, new_mask) /**/
|
||||
#endif
|
||||
|
||||
#define define_lock(name) \
|
||||
pthread_mutex_t name = PTHREAD_MUTEX_INITIALIZER
|
||||
#define lock_init(l) mutex_init (l)
|
||||
#define lock_acquire(l,m) \
|
||||
do { \
|
||||
sigprocmask (SIG_SETMASK, &unwi_full_mask, &(m)); \
|
||||
SIGPROCMASK (SIG_SETMASK, &unwi_full_mask, &(m)); \
|
||||
mutex_lock (l); \
|
||||
} while (0)
|
||||
#define lock_release(l,m) \
|
||||
do { \
|
||||
mutex_unlock (l); \
|
||||
sigprocmask (SIG_SETMASK, &(m), NULL); \
|
||||
SIGPROCMASK (SIG_SETMASK, &(m), NULL); \
|
||||
} while (0)
|
||||
|
||||
#define SOS_MEMORY_SIZE 16384 /* see src/mi/mempool.c */
|
||||
|
|
Loading…
Reference in a new issue