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authorMike Frysinger <vapier@chromium.org>2019-03-02 02:02:12 -0500
committerMike Frysinger <vapier@chromium.org>2019-03-03 17:39:36 +0000
commit59d89be2d67621d818879701dcf8cfcb3291520f (patch)
treeb5abd0507633637d57efff6a884f292296eba805 /src/tools/windows/tools_windows.gyp
parentReplace TYPED_TEST_CASE with TYPED_TEST_SUITE. (diff)
downloadbreakpad-59d89be2d67621d818879701dcf8cfcb3291520f.tar.xz
linux_core_dumper: support NT_SIGINFO for reading crashing address
The current core dumper only parses NT_PRSTATUS notes. With signal details, this note only includes three fields: signo, code, and errno. We set exception_code to signo and exception_flag to code. The errno value isn't set by the kernel, so there's no need to save it. However, we never fill in exception_address which means all converted crashes look like they happen at address 0. This implies a NULL jump which is usually not the case, so it's just confusing. The prstatus structure doesn't offer anything directly that tracks this. Starting with linux-3.7, the kernel writes out the full siginfo structure in the NT_SIGINFO note. So lets support that to pull out si_addr which, for a bunch of common signals, is the value we want in exception_address. The size of the siginfo_t structure should be locked to 128 bytes at build time for all architectures, so this should hopefully be stable. Bug: google-breakpad:790 Change-Id: I458bad4787b1a8b73fad8fe068e9f23bec957599 Reviewed-on: https://chromium-review.googlesource.com/c/1497661 Reviewed-by: Mark Mentovai <mark@chromium.org>
Diffstat (limited to 'src/tools/windows/tools_windows.gyp')
0 files changed, 0 insertions, 0 deletions