496474 - Make objc_msgSend the first part of a "compound signature"

Status: RESOLVED FIXED

(Socorro :: General, task)

Description

[Smokey Ardisson (offline for a while; not following bugs - do not email)]

objc_msgSend is a very common frame 0 in crashing stats on Mac OS X, but it's a catch-all and doesn't tell us very much.  Reports would be much more useful if objc_msgSend were treated like other "common frames" and made into the first part of a "compound signature" like "objc_msgSend | -[NSWindow makeKeyWindow]" instead.

This seems to have already been done for objc_msgSend's hex equivalents (libobjc.A.dylib@0x15688 and libobjc.A.dylib@0x1568c), so it would be nice to have it for the symbolized frame, too.

Comment 1

[(not currently active) Ted Mielczarek]

This was implemented in bug 411349 for the other frames, you can see the lists there. I believe there are two lists, one of frames to skip entirely, and one of frames to prepend to the signature.

Comment 2

[K Lars Lohn [:lars] [:klohn]]

this is just a configuration change to the processor.  I have submitted Bug 496596 to IT to make this change happen

Comment 3

[Smokey Ardisson (offline for a while; not following bugs - do not email)]

Er, so I was mistaken; libobjc.A.dylib@0x1568c wasn't already being made into a compound signature, just libobjc.A.dylib@0x15688 (and now the symbolized objc_msgSend itself, since bug 496596 is FIXED).

Lars, would you prefer I opened a new bug about libobjc.A.dylib@0x1568c, or do you want to hang another processor config change bug off of this bug?

Comment 4

[Smokey Ardisson (offline for a while; not following bugs - do not email)]

Setting this to FIXED because the original request is long-since fixed by bug 496596.  I spun comment 3/libobjc.A.dylib@0x1568c off into bug 514124.