Date: Sat, 28 Aug 1999 16:24:28 +0800 (CST) From: Yuan-Chen Cheng <ycheng@ml.tw.freebsd.org> To: FreeBSD-gnats-submit@freebsd.org Subject: gnu/13438: objc forward core dump using system cc Message-ID: <199908280824.QAA74263@freebsd.sinica.edu.tw>
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>Number: 13438
>Category: gnu
>Synopsis: objc forward core dump using system cc
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Aug 28 01:30:01 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Yuan-Chen Cheng
>Release: FreeBSD 4.0-19990827-CURRENT i386
>Organization:
ASCC
>Environment:
New install FreeBSD 4.0-19990827-CURRENT i386
>Description:
objc forward feature not work.
>How-To-Repeat:
mkdir test
cd test
patch < following_patch
cc *.m -Wall -lobjc
./a.out
core dump with message:
Inv val is 134561320
Floating point exception (core dumped)
--- /dev/null Wed May 6 04:32:27 1998
+++ DelegatePool.h Wed Aug 11 08:34:58 1999
@@ -0,0 +1,10 @@
+#include <objc/Object.h>
+
+@interface DelegatePool : Object
+{
+ id a;
+}
+- (void) setDeleGate: anObject;
+- forward:(SEL)aSel :(arglist_t)argFrame;
+@end
+
--- /dev/null Wed May 6 04:32:27 1998
+++ DelegatePool.m Wed Aug 11 08:34:58 1999
@@ -0,0 +1,22 @@
+
+#include "DelegatePool.h"
+
+@implementation DelegatePool
+
+- (void) setDeleGate: anObject
+{
+ a = anObject;
+}
+
+- forward: (SEL)aSel :(arglist_t)argFrame
+{
+ void *ret = 0;
+
+ if ([a respondsTo:aSel])
+ {
+ ret = [a performv:aSel :argFrame];
+ }
+ return ret;
+}
+
+@end
--- /dev/null Wed May 6 04:32:27 1998
+++ Int.h Wed Aug 11 08:34:58 1999
@@ -0,0 +1,11 @@
+
+#include <objc/Object.h>
+
+@interface Int : Object
+{
+ int i;
+}
+- (void) set: (int) val;
+- (void) print;
+@end
+
--- /dev/null Wed May 6 04:32:27 1998
+++ Int.m Wed Aug 11 08:34:58 1999
@@ -0,0 +1,17 @@
+
+#include "Int.h"
+
+@implementation Int
+
+- (void) set: (int) val
+{
+ i = val;
+}
+
+- (void) print
+{
+ printf("Inv val is %i\n", i);
+}
+
+@end
+
--- /dev/null Wed May 6 04:32:27 1998
+++ main.m Wed Aug 11 08:34:57 1999
@@ -0,0 +1,16 @@
+#include "Int.h"
+#include "DelegatePool.h"
+
+int main()
+{
+ id i;
+ id d;
+
+ i = [[Int new] init] ;
+ d = [[DelegatePool new] init];
+ [d setDeleGate: i];
+ [d print];
+ return 0;
+}
+
+
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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