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Keith Randall c96e94e69d cmd/compile: generate frame pointers for otherwise frameless functions
func f() {
    g()
}

We mistakenly don't add a frame pointer for f.  This means f
isn't seen when walking the frame pointer linked list.  That
matters for kernel-gathered profiles, and is an impediment for
issues like #16638.

To fix, allocate a stack frame even for otherwise frameless functions
like f.  It is a bit tricky because we need to avoid some runtime
internals that really, really don't want one.

No test at the moment, as only kernel CPU profiles would catch it.
Tests will come with the implementation of #16638.

Fixes #18103

Change-Id: I411206cc9de4c8fdd265bee2e4fa61d161ad1847
Reviewed-on: https://go-review.googlesource.com/33754
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2016-12-01 19:25:17 +00:00
.github doc: improve issue template 2016-08-29 03:33:28 +00:00
api cmd/objdump: copy gosym.PCValue into internal package 2016-12-01 18:20:04 +00:00
doc doc: remove space in "Go 1. 8" 2016-12-01 16:30:38 +00:00
lib/time lib/time: update tzdata to 2016i 2016-11-10 19:14:51 +00:00
misc Revert "runtime: handle SIGPIPE in c-archive and c-shared programs" 2016-12-01 11:23:17 +00:00
src cmd/compile: generate frame pointers for otherwise frameless functions 2016-12-01 19:25:17 +00:00
test cmd/compile: generate code that type checks when inlining variadic functions 2016-11-30 19:46:00 +00:00
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