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authorChristopher Faylor <me@cgf.cx>2009-08-21 21:32:06 +0000
committerChristopher Faylor <me@cgf.cx>2009-08-21 21:32:06 +0000
commit6282fe16ddf562366d87d7e23ba3b63413cb0218 (patch)
treed007b9daa192e004c18c86cb5185df3c12fd8f9d
parente41f43a1a675ee6d0f21f2ab611c97ffe9c22088 (diff)
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* dll_init.h (has_dtors): New flag.
(run_dtors): New wrapper function which avoids calling dtors more than once. * dll_init.cc (dll_global_dtors): Use dll.run_dtors wrapper. (dll_list::detach): Ditto. (dll_list::alloc): Set has_dtors flag.
-rw-r--r--winsup/cygwin/ChangeLog9
-rw-r--r--winsup/cygwin/dll_init.cc6
-rw-r--r--winsup/cygwin/dll_init.h9
3 files changed, 22 insertions, 2 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 316a48a3e..b7621b1d9 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,5 +1,14 @@
2009-08-21 Christopher Faylor <me+cygwin@cgf.cx>
+ * dll_init.h (has_dtors): New flag.
+ (run_dtors): New wrapper function which avoids calling dtors more than
+ once.
+ * dll_init.cc (dll_global_dtors): Use dll.run_dtors wrapper.
+ (dll_list::detach): Ditto.
+ (dll_list::alloc): Set has_dtors flag.
+
+2009-08-21 Christopher Faylor <me+cygwin@cgf.cx>
+
* fcntl.cc (fcntl64): Detect negative fd as error.
2009-08-21 Corinna Vinschen <corinna@vinschen.de>
diff --git a/winsup/cygwin/dll_init.cc b/winsup/cygwin/dll_init.cc
index 39a8f505b..f1b9a9f92 100644
--- a/winsup/cygwin/dll_init.cc
+++ b/winsup/cygwin/dll_init.cc
@@ -35,7 +35,7 @@ dll_global_dtors ()
dll_global_dtors_recorded = false;
if (recorded && dlls.start.next)
for (dll *d = dlls.end; d != &dlls.start; d = d->prev)
- d->p.run_dtors ();
+ d->run_dtors ();
}
/* Run all constructors associated with a dll */
@@ -119,6 +119,7 @@ dll_list::alloc (HINSTANCE h, per_process *p, dll_type type)
return d; /* Return previously allocated pointer. */
}
+ /* FIXME: Change this to new at some point. */
d = (dll *) cmalloc (HEAP_2_DLL, sizeof (*d) + (namelen * sizeof (*name)));
/* Now we've allocated a block of information. Fill it in with the supplied
@@ -126,6 +127,7 @@ dll_list::alloc (HINSTANCE h, per_process *p, dll_type type)
d->count = 1;
wcscpy (d->name, name);
d->handle = h;
+ d->has_dtors = true;
d->p = p;
d->type = type;
if (end == NULL)
@@ -159,7 +161,7 @@ dll_list::detach (void *retaddr)
system_printf ("WARNING: trying to detach an already detached dll ...");
else if (--d->count == 0)
{
- d->p.run_dtors ();
+ d->run_dtors ();
d->prev->next = d->next;
if (d->next)
d->next->prev = d->prev;
diff --git a/winsup/cygwin/dll_init.h b/winsup/cygwin/dll_init.h
index 9a712a3cc..90cfa03e2 100644
--- a/winsup/cygwin/dll_init.h
+++ b/winsup/cygwin/dll_init.h
@@ -50,10 +50,19 @@ struct dll
per_module p;
HMODULE handle;
int count;
+ bool has_dtors;
dll_type type;
WCHAR name[1];
void detach ();
int init ();
+ void run_dtors ()
+ {
+ if (has_dtors)
+ {
+ has_dtors = 0;
+ p.run_dtors ();
+ }
+ }
};
#define MAX_DLL_BEFORE_INIT 100