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1 //
2 // simulate_crash
3 // utilities
4 //
5 // Copyright (c) 2014 Apple Inc. All Rights Reserved.
6 //
7
8 #include "debugging.h"
9
10 #include <dispatch/dispatch.h>
11 #include <dlfcn.h>
12 #include <mach/mach.h>
13
14 /// Type to represent a boolean value.
15 #if TARGET_OS_IPHONE && __LP64__
16 typedef bool BOOL;
17 #else
18 typedef signed char BOOL;
19 // BOOL is explicitly signed so @encode(BOOL) == "c" rather than "C"
20 // even if -funsigned-char is used.
21 #endif
22
23 static void __security_simulatecrash_link(CFStringRef reason, uint32_t code)
24 {
25 #if !TARGET_IPHONE_SIMULATOR
26 // Prototype defined in <CrashReporterSupport/CrashReporterSupport.h>, but objC only.
27 // Soft linking here so we don't link unless we hit this.
28 static BOOL (*__SimulateCrash)(pid_t pid, mach_exception_data_type_t exceptionCode, CFStringRef description);
29
30 static dispatch_once_t once = 0;
31 dispatch_once(&once, ^{
32 void *image = dlopen("/System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport", RTLD_NOW);
33 if (image)
34 __SimulateCrash = dlsym(image, "SimulateCrash");
35 else
36 __SimulateCrash = NULL;
37 });
38
39 if (__SimulateCrash)
40 __SimulateCrash(getpid(), code, reason);
41 else
42 secerror("SimulateCrash not available");
43 #else
44 secerror("SimulateCrash not available in iOS simulator");
45 #endif
46 }
47
48
49 void __security_simulatecrash(CFStringRef reason, uint32_t code)
50 {
51 secerror("Simulating crash, reason: %@, code=%08x", reason, code);
52 __security_simulatecrash_link(reason, code);
53 }