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Kaoru0822andClaude Opus 5.5
9837203234
Add observe_native_calls (CLI: observe-native-calls <path> <input-json>). It launches the active Mach-O as an owned process under `lldb --batch`, stops at caller-selected functions or Objective-C methods, records each entry and auto-continues: - thread, image, symbol, load and file address; - raw integer argument registers and optional caller frames; - for methods, the selector read from _cmd and the receiver's dynamic class, from LLDB's runtime reader without running target code. No expression is evaluated and no existing process is attached. The run ends on exit, max_events or duration_ms; REA then kills the process and confirms that it is gone. The result also carries exit status, bounded stdout/stderr, breakpoint resolution with partial coverage for unresolved requests, and limitations. A target LLDB may not debug fails with a debugger-attach-denied reason and remediation. verify:native-calls checks the tool through the CLI and stdio MCP against a compiled fixture, compares breakpoint addresses with nm, exercises every outcome, and checks hardened-runtime targets with and without get-task-allow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
34 lines
995 B
Objective-C
34 lines
995 B
Objective-C
#import <Foundation/Foundation.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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// Observed by verify:native-calls; `--wait` keeps the process running.
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@interface ReaCallGreeter : NSObject
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- (NSString *)greet:(NSString *)name times:(long)count;
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@end
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@implementation ReaCallGreeter
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- (NSString *)greet:(NSString *)name times:(long)count {
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return [NSString stringWithFormat:@"%@ x%ld", name, count];
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}
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@end
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__attribute__((noinline)) int rea_call_add(int left, int right) {
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return left + right;
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}
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int main(int argc, char **argv) {
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@autoreleasepool {
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if (argc > 1 && strcmp(argv[1], "--wait") == 0)
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for (;;) sleep(1);
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ReaCallGreeter *greeter = [ReaCallGreeter new];
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for (long index = 0; index < 3; index++)
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printf("%s %d\n", [[greeter greet:@"world" times:index] UTF8String],
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rea_call_add((int)index, 40));
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const char *marker = getenv("REA_CALLS_MARKER");
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if (marker != NULL)
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printf("marker %s\n", marker);
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}
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return 0;
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}
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