dfdd898862
Sometimes, crash reports come with inlined symbols. These provide the exact stacktrace from the user binary. However, when investigating a crash, it's very likely that the images related to the crashed thread are not available on the debugging user system or that the versions don't match. This causes interactive crashlog to show a degraded backtrace in lldb. This patch aims to address that issue, by parsing the inlined symbols from the crash report and load them into lldb's target. This patch is a follow-up to 27f27d1, focusing on inlined symbols loading from legacy (non-json) crash reports. To do so, it updates the stack frame regular expression to make the capture groups more granular, to be able to extract the symbol name, the offset and the source location if available, while making it more maintainable. So now, when parsing the crash report, we build a data structure containing all the symbol information for each stackframe. Then, after launching the scripted process for interactive mode, we write a JSON symbol file for each module, only containing the symbols that it contains. Finally, we load the json symbol file into lldb, before showing the user the process status and backtrace. rdar://97345586 Differential Revision: https://reviews.llvm.org/D146765 Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
44 lines
2.5 KiB
Plaintext
44 lines
2.5 KiB
Plaintext
# REQUIRES: python, native && target-aarch64 && system-darwin
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# RUN: mkdir -p %t.dir
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# RUN: yaml2obj %S/Inputs/interactive_crashlog/multithread-test.yaml > %t.dir/multithread-test
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# RUN: %lldb -o 'command script import lldb.macosx.crashlog' \
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# RUN: -o 'crashlog -a -i -t %t.dir/multithread-test %S/Inputs/interactive_crashlog/multithread-test.ips' \
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# RUN: -o "thread list" -o "bt all" 2>&1 | FileCheck %s
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# CHECK: "crashlog" {{.*}} commands have been installed, use the "--help" options on these commands
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# CHECK: (lldb) process status
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# CHECK-NEXT: Process 22511 stopped
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# CHECK-NEXT: * thread #3, stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
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# CHECK-NEXT: frame #0: 0x0000000100ec58f4 multithread-test`bar
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# CHECK: (lldb) thread backtrace
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# CHECK-NEXT: * thread #3, stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
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# CHECK-NEXT: * frame #0: 0x0000000100ec58f4 multithread-test`bar{{.*}} [artificial]
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# CHECK-NEXT: frame #1: 0x0000000100ec591b multithread-test`foo{{.*}} [artificial]
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# CHECK-NEXT: frame #2: 0x0000000100ec5a87 multithread-test`compute_pow{{.*}} [artificial]
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# CHECK: (lldb) thread list
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# CHECK-NEXT: Process 22511 stopped
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# CHECK-NEXT: thread #1: tid = 0x23c7fe, 0x000000019cc40b84{{.*}}, queue = 'com.apple.main-thread'
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# CHECK-NEXT: thread #2: tid = 0x23c800, 0x000000019cc42c9c{{.*}}
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# CHECK-NEXT: * thread #3: tid = 0x23c801, 0x0000000100ec58f4 multithread-test`bar{{.*}}, stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
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# CHECK: (lldb) bt all
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# CHECK: thread #1, queue = 'com.apple.main-thread'
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# CHECK: frame #{{[0-9]+}}: 0x000000019cc40b84{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x0000000100ec5b3b multithread-test`main{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x00000002230f8da7{{.*}} [artificial]
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# CHECK-NEXT: thread #2
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# CHECK-NEXT: frame #0: 0x000000019cc42c9c{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x0000000100ec5957 multithread-test`call_and_wait{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x000000019cc7e06b{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x000000019cc78e2b{{.*}} [artificial]
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# CHECK-NEXT:* thread #3, stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
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# CHECK-NEXT: * frame #0: 0x0000000100ec58f4 multithread-test`bar{{.*}} [artificial]
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# CHECK-NEXT: frame #1: 0x0000000100ec591b multithread-test`foo{{.*}} [artificial]
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# CHECK-NEXT: frame #2: 0x0000000100ec5a87 multithread-test`compute_pow{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x000000019cc7e06b{{.*}} [artificial]
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# CHECK: frame #{{[0-9]+}}: 0x000000019cc78e2b{{.*}} [artificial]
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