This patch prints out all CPU registers after a SIGSEGV. These are available in the signal handler context. Only implemented for Darwin. Can be turned off with the dump_registers flag.
Differential Revision: https://reviews.llvm.org/D11365
llvm-svn: 287957
Summary:
Finish work on PR30351 (last one, after D24551, D24552, and D24554 land)
Also replace the old ReportData structure/variable with the current_error_ static
member of the ScopedInErrorReport class.
This has the following side-effects:
- Move ASAN_ON_ERROR(); call to the start of the destructor, instead
of in StartReporting().
- We only generate the error structure after the
ScopedInErrorReport constructor finishes, so we can't call
ASAN_ON_ERROR() during the constructor. I think this makes more
sense, since we end up never running two of the ASAN_ON_ERROR()
callback. This also works the same way as error reporting, since
we end up having a lock around it. Otherwise we could end up
with the ASAN_ON_ERROR() call for error 1, then the
ASAN_ON_ERROR() call for error 2, and then lock the mutex for
reporting error 1.
- The __asan_get_report_* functions will be able to, in the future,
provide information about other errors that aren't a "generic
error". But we might want to rethink that API, since it's too
restricted. Ideally we teach lldb about the current_error_ member of
ScopedInErrorReport.
Reviewers: vitalybuka, kcc, eugenis
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D24555
llvm-svn: 282107
Summary:
@kcc: I know you've accepted the other revision, but since this is a
non-trivial change, I'm updating it to show why D24029 would help.
This commit sets up the infrastructure to use reified error
descriptions, and moves ReportStackOverflow to the new system.
After we convert all the errors, we'll be able to simplify ScopedInErrorReport
and remove the older debugging mechanism which had some errors partly reified
in some way. We'll be able to maintain the external API.
ScopedInErrorReport will be able to track one of the reified errors at a time.
The purpose of this is so we have its destructor actually print the error and
possibly interface with the debugger (will depend on the platform, of course).
Reviewers: kcc, samsonov, timurrrr
Subscribers: kcc, llvm-commits, kubabrecka
Differential Revision: https://reviews.llvm.org/D24030
llvm-svn: 280111
Summary:
This commit sets up the infrastructure to use reified error
descriptions, and moves ReportStackOverflow to the new system.
After we convert all the errors, we'll be able to simplify ScopedInErrorReport
and remove the older debugging mechanism which had some errors partly reified
in some way. We'll be able to maintain the external API.
ScopedInErrorReport will be able to track one of the reified errors at a time.
The purpose of this is so we have its destructor actually print the error and
possibly interface with the debugger (will depend on the platform, of course).
Reviewers: kcc, samsonov, timurrrr
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23672
llvm-svn: 279931
Summary:
This commit sets up the infrastructure to use reified error
descriptions, and moves ReportStackOverflow to the new system.
After we convert all the errors, we'll be able to simplify ScopedInErrorReport
and remove the older debugging mechanism which had some errors partly reified
in some way. We'll be able to maintain the external API.
ScopedInErrorReport will be able to track one of the reified errors at a time.
The purpose of this is so we have its destructor actually print the error and
possibly interface with the debugger (will depend on the platform, of course).
Reviewers: kcc, samsonov, timurrrr
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23672
llvm-svn: 279862
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