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eh_alloc.cc (__cxa_allocate_exception): Don't terminate holding the mutex.

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* libsupc++/eh_alloc.cc (__cxa_allocate_exception): Don't
	terminate holding the mutex. Make sure size fits in EMERGENCY_OBJ_SIZE.

From-SVN: r41296
This commit is contained in:
Nathan Sidwell 2001-04-12 07:47:34 +00:00 committed by Nathan Sidwell
parent 0fb3018cd8
commit f847167e3d
2 changed files with 11 additions and 1 deletions
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5
libstdc++-v3/ChangeLog
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@ -1,3 +1,8 @@
2001-04-12 Nathan Sidwell <nathan@codesourcery.com>
* libsupc++/eh_alloc.cc (__cxa_allocate_exception): Don't
terminate holding the mutex. Make sure size fits in EMERGENCY_OBJ_SIZE.
2001-04-12 Gabriel Dos Reis <gdr@codesourcery.com>
* testsuite/README: Add DejaGnu specific documentation.

7
libstdc++-v3/libsupc++/eh_alloc.cc
View File

@ -113,19 +113,24 @@ __cxa_allocate_exception(std::size_t thrown_size)
bitmask_type used = emergency_used;
unsigned int which = 0;
if (thrown_size > EMERGENCY_OBJ_SIZE)
goto failed;
while (used & 1)
{
used >>= 1;
if (++which >= EMERGENCY_OBJ_COUNT)
std::terminate ();
goto failed;
}
emergency_used |= (bitmask_type)1 << which;
ret = &emergency_buffer[which][0];
failed:;
#ifdef __GTHREADS
__gthread_mutex_unlock (&emergency_mutex);
#endif
if (!ret)
std::terminate ();
}
memset (ret, 0, sizeof (__cxa_exception));