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This patch adds support to the "Last Exception Backtrace" to the
`crashlog` command.
This metadata is homologous to the "Application Specific Backtrace",
however the format is closer to a regular stack frame.
Since the thread that "contains" the "Last Exception Backtrace" doesn't
really exist, this information is displayed when requesting an extended
backtrace of the crashed thread, similarly to the "Application Specific
Backtrace".
To achieve that, this patch includes some refactors and fixes to the
existing "Application Specific Backtrace" handling.
rdar://113046509
Differential Revision: https://reviews.llvm.org/D157851
Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
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This patch changes app_specific_backtrace_crashlog.test's crashlog file
extension from `ips` to `txt. This should prevent the test from opening
Console.app when being run.
This should also fix a test failure caused by missing symbols.
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
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For an exception crashlog, the thread backtraces aren't usually very helpful
and instead, developpers look at the "Application Specific Backtrace" that
was generated by `objc_exception_throw`.
LLDB could already parse and symbolicate these Application Specific Backtraces
for regular textual-based crashlog, so this patch adds support to parse them
in JSON crashlogs, and materialize them a HistoryThread extending the
crashed ScriptedThread.
This patch also includes the Application Specific Information messages
as part of the process extended crash information log. To do so, the
ScriptedProcess Python interface has a new GetMetadata method that
returns an arbitrary dictionary with data related to the process.
rdar://93207586
Differential Revision: https://reviews.llvm.org/D126260
Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
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