Bug 13438
| Summary: | objc forward core dump using system cc | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Yuan-Chen Cheng <ycheng> |
| Component: | gnu | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Unspecified | ||
| Hardware: | Any | ||
| OS: | Any | ||
no more core dump on freebsd 4.0-RELEASE (on K6) but the output value is still wrong. State Changed From-To: open->feedback Does this problem still occur in newer versions of FreeBSD, such as 4.3-RELEASE? State Changed From-To: feedback->closed Automatic feedback timeout. If additional feedback that warrants the re-opening of this PR is available but not included in the audit trail, please include the feedback in a reply to this message (preserving the Subject line) and ask that the PR be re-opened. |
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; +} + +