• Russ Cox's avatar
    build: enable framepointer mode by default · 7fdec621
    Russ Cox authored
    This has a minor performance cost, but far less than is being gained by SSA.
    As an experiment, enable it during the Go 1.7 beta.
    Having frame pointers on by default makes Linux's perf, Intel VTune,
    and other profilers much more useful, because it lets them gather a
    stack trace efficiently on profiling events.
    (It doesn't help us that much, since when we walk the stack we usually
    need to look up PC-specific information as well.)
    
    Fixes #15840.
    
    Change-Id: I4efd38412a0de4a9c87b1b6e5d11c301e63f1a2a
    Reviewed-on: https://go-review.googlesource.com/23451
    Run-TryBot: Russ Cox <rsc@golang.org>
    Reviewed-by: 's avatarAustin Clements <austin@google.com>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    7fdec621
galign.go 2.37 KB