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Utilities: Add support for testing null deferencing a RefPtr

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This adds the new flag -R for the crash utility which tests what
happens when we dereference a null RefPtr. This is useful for testing
the output of the assertion message.
This commit is contained in:
Gunnar Beutner 2021-06-06 17:40:48 +02:00 • committed by Andreas Kling
parent 89a38b72b7
commit 64754ba985
Notes: sideshowbarker 2024-07-18 12:43:54 +09:00
1 changed files with 11 additions and 0 deletions
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11
Userland/Utilities/crash.cpp
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@ -10,6 +10,7 @@
#include <AK/String.h>
#include <Kernel/IO.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/Object.h>
#include <LibTest/CrashTest.h>
#include <stdio.h>
#include <stdlib.h>
@ -43,6 +44,7 @@ int main(int argc, char** argv)
bool do_read_cpu_counter = false;
bool do_pledge_violation = false;
bool do_failing_assertion = false;
bool do_deref_null_refptr = false;
auto args_parser = Core::ArgsParser();
args_parser.set_general_help(
@ -67,6 +69,7 @@ int main(int argc, char** argv)
args_parser.add_option(do_read_cpu_counter, "Read the x86 TSC (Time Stamp Counter) directly", nullptr, 'c');
args_parser.add_option(do_pledge_violation, "Violate pledge()'d promises", nullptr, 'p');
args_parser.add_option(do_failing_assertion, "Perform a failing assertion", nullptr, 'n');
args_parser.add_option(do_deref_null_refptr, "Dereference a null RefPtr", nullptr, 'R');
if (argc != 2) {
args_parser.print_usage(stderr, argv[0]);
@ -279,5 +282,13 @@ int main(int argc, char** argv)
}).run(run_type);
}
if (do_deref_null_refptr || do_all_crash_types) {
Crash("Dereference a null RefPtr", [] {
RefPtr<Core::Object> p;
*p;
return Crash::Failure::DidNotCrash;
}).run(run_type);
}
return 0;
}