Xcode Plugins Code

#import "XCPBuildSystem.h"
#import "XCPDependencyGraph.h"
#import <objc/runtime.h>
#import <sys/sysctl.h>

#define HOOK_CALL_ORIG_NA(hook_name)	__hookorig_##hook_name(self, _sel);

#define HOOK_CALL_ORIG(hook_name,...)	__hookorig_##hook_name(self, _sel, __VA_ARGS__);

#define DECLARE_AND_DEFINE_HOOK_NA(hook_name, return_type) \
	typedef return_type (*__hooktype_##hook_name)(id self, SEL _sel);	\
	__hooktype_##hook_name __hookorig_##hook_name = nil; \
	return_type __hooknew_##hook_name(id self, SEL _sel)

#define DECLARE_AND_DEFINE_HOOK(hook_name, return_type, ...) \
	typedef return_type (*__hooktype_##hook_name)(id self, SEL _sel, __VA_ARGS__);	\
	__hooktype_##hook_name __hookorig_##hook_name = nil; \
	return_type __hooknew_##hook_name(id self, SEL _sel, __VA_ARGS__)

#define HOOK_SETUP(hook_name, class_name, selector_name) { \
	Method __hooked_method = class_getInstanceMethod([class_name class], @selector(selector_name)); \
	(void*)__hookorig_##hook_name = (void*) method_setImplementation(__hooked_method, (IMP)__hooknew_##hook_name); \
}

DECLARE_AND_DEFINE_HOOK_NA(processDependencyGraphEvents, void) {
	HOOK_CALL_ORIG_NA(processDependencyGraphEvents);
	[self writeToGraphVizFileAtPath:[self expandedValueForString:@"$(TEMP_DIR)/depend.dot"]];
}

DECLARE_AND_DEFINE_HOOK(createDependencyGraphWithTargetDGSnapshot_, void, id dgs) {
	HOOK_CALL_ORIG(createDependencyGraphWithTargetDGSnapshot_, dgs);
	[self writeToGraphVizFileAtPath:[self expandedValueForString:@"$(TEMP_DIR)/depend-bis.dot"]];
}

void xcodeprofile_init() {	
	NSAutoreleasePool* pool = [NSAutoreleasePool new];
	
	// Only express us inside the Xcode application
	if(![[[NSProcessInfo processInfo] processName] isEqualToString:@"Xcode"]) goto exit;
		
	// Setup
	HOOK_SETUP(processDependencyGraphEvents, PBXTargetBuildContext, processDependencyGraphEvents);
	HOOK_SETUP(createDependencyGraphWithTargetDGSnapshot_, PBXTargetBuildContext, createDependencyGraphWithTargetDGSnapshot:);
	
	NSLog(@"Xcode Debugging Tools loaded");

exit:
	[pool release];
}