Follow-up Comment #7, bug #45032 (project gnustep):
Hey guys... after doing some research on this on Riccardo's SPARC box I've
seen this:
Breakpoint 13, +[NSBundle(Private) _addFrameworkFromClass:] (self=0xfea34304
<_OBJC_Class_NSBundle>, _cmd=0xfea34590 <_OBJC_SELECTOR_TABLE+488>,
frameworkClass=0xff30eb28 <_OBJC_Class_NSFramework_FSNode>) at
NSBundle.m:889
889 fmClasses = [frameworkClass frameworkClasses];
(gdb) step
objc_msg_lookup (receiver=0xff30eb28 <_OBJC_Class_NSFramework_FSNode>,
op=0xfea34568 <_OBJC_SELECTOR_TABLE+448>)
at
/home/dam/mgar/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.2/libobjc/sendmsg.c:445
445
/home/dam/mgar/pkg/gcc4/trunk/work/solaris10-sparc/build-isa-sparcv8plus/gcc-4.9.2/libobjc/sendmsg.c:
No such file or directory.
(gdb) b NSFramework_FSNode.m:13
Breakpoint 14 at 0xff2a145c: file derived_src/NSFramework_FSNode.m, line 13.
(gdb) c
Continuing.
Breakpoint 14, +[NSFramework(FSNode) _frameworkClasses] (self=0xff30eb28
<_OBJC_Class_NSFramework_FSNode>, _cmd=0xfea34568 <_OBJC_SELECTOR_TABLE+448>)
at derived_src/NSFramework_FSNode.m:13
13 + (NSString *const*)frameworkClasses { return allClasses; }
(gdb) p allClasses
$5 = {0x0}
(gdb)
This is a method GNUstep-make is auto generating for the framework. Here's
the class in it's entirety....
#include <Foundation/NSString.h>
@interface NSFramework_FSNode : NSObject
+ (NSString *)frameworkEnv;
+ (NSString *)frameworkPath;
+ (NSString *)frameworkVersion;
+ (NSString *const*)frameworkClasses;
@end
@implementation NSFramework_FSNode
+ (NSString *)frameworkEnv { return nil; }
+ (NSString *)frameworkPath { return @"/usr/GNUstep/Local/Library/Frameworks";
}
+ (NSString *)frameworkVersion { return @"0"; }
static NSString *allClasses[] = {@"FSNode", @"FSNodeRep", @"FSNTextCell",
@"FSNBrowserCell", @"FSNCellNameEditor", @"FSNBrowserScroll",
@"FSNBrowserMatrix", @"FSNBrowserColumn", @"FSNBrowser", @"FSNIcon",
@"FSNIconNameEditor", @"FSNIconsView", @"FSNListView",
@"FSNListViewDataSource", @"FSNListViewNameEditor", @"FSNListViewNodeRep",
@"FSNPathComponentView", @"FSNPathComponentsViewer", NULL};
+ (NSString *const*)frameworkClasses { return allClasses; }
@end
Now... as is apparent from the trace above "allClasses" at the time
frameworkClasses is called from NSBundle.m:889 (current SVN revision as of
this date) is returning NULL:
887 /* A NULL terminated list of class names - the classes
contained
888 in the framework. */
889 fmClasses = [frameworkClass frameworkClasses];
890
891 while (*fmClasses != NULL)
892 {
893 NSValue *value;
894 Class class = NSClassFromString(*fmClasses);
895
(gdb) p fmClasses
$6 = (struct NSString **) 0xff31a6c4 <allClasses>
(gdb) p *fmClasses
$7 = (struct NSString *) 0x0
(gdb)
I'm a bit confused as, I thought that the static variable in the global scope
should be initialized before everything else, but, apparently, this is not
something which can be relied on to happen on SOLARIS.
I'm wondering if this is a more generalized issue. Could this happen on other
OSs. Currently I have only seen this on SOLARIS, but that doesn't rule out
the possibility that it could happen elsewhere.
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