Commit 67eb26054d84566d477cd05ab0b4dcccc8a8ca48
2020-11-12T17:16:05
Faster stack traces on Linux Previously addr2line was called for every symbol separately. This was glacially slow as every module's debug info was repeatedly reloaded. With this change, contiguous symbols from the same module are batched together and one call to addr2line is done. Potential future optimization is to batch every symbol from the same module, but capture the output of addr2line calls and interleave them to match the stack. For example, currently 4 calls to addr2line are made for the following stack trace: moduleA(+addr1) moduleA(+addr2) moduleB(+addr3) moduleB(+addr4) moduleA(+addr5) moduleA(+addr6) moduleB(+addr7) moduleB(+addr8) while technically only two calls are necessary. Bug: angleproject:5239 Change-Id: I58742b85409b0b74bb87272bc63e251a2d0fe0e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2535682 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>