57bf5c8659
LLDB evaluates some utility expression to update the Objective-C class list that ends up calling function such as `free` or `objc_copyRealizedClassList_nolock`. This adds a test that just tries to define our own bogus version of `objc_copyRealizedClassList_nolock`. It just tests that LLDB doesn't crash as we currently don't have a way to tell LLDB to look for the function in a specific library. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D107778
28 lines
824 B
Objective-C
28 lines
824 B
Objective-C
#import <Foundation/Foundation.h>
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#include <stdlib.h>
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// A function with this signature will be called by LLDB to retrieve the
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// Objective-C class list. We shouldn't call this function that is defined
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// by the user if possible.
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Class *objc_copyRealizedClassList_nolock(unsigned int *outCount) {
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// Don't try to implement this properly but just abort.
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abort();
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}
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// Define some custom class that makes LLDB read the Objective-C class list.
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@interface CustomClass : NSObject {
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};
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@end
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@implementation CustomClass
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@end
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int main(int argc, char **argv) {
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id custom_class = [[CustomClass alloc] init];
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// Make sure our trap function is emitted but never called (the test doesn't
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// launch the executable with any args).
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if (argc == 123) {
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objc_copyRealizedClassList_nolock(0);
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}
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return 0; // break here
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}
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