424199 – sys-devel/llvm-3.1 does not generate line information usable by gdb

Bug 424199 - sys-devel/llvm-3.1 does not generate line information usable by gdb

Summary: sys-devel/llvm-3.1 does not generate line information usable by gdb

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Development (show other bugs)
Hardware:	All Linux

Importance:	Normal major
Assignee:	Bernard Cafarelli

URL:
Whiteboard:
Keywords:	PATCH

Depends on:
Blocks:

Reported:	2012-06-30 04:55 UTC by Ben Longbons
Modified:	2012-07-05 22:27 UTC (History)
CC List:	1 user (show)

See Also:	http://llvm.org/bugs/show_bug.cgi?id=13211
Package list:
Runtime testing required:	---

Attachments
make debug information usable again (0001-Revert-Patch-to-set-is_stmt-a-little-better-for-prol.patch,2.56 KB, patch) 2012-06-30 04:56 UTC, Ben Longbons	Details \| Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description Ben Longbons 2012-06-30 04:55:06 UTC

Building anything with clang -g associates symbols to addresses, but not to file/line, which is necessary to do anything useful in a debugger. (Except when it does)

Reproducible: Always

Steps to Reproduce:
example:
$ clang -o main -g -x c - <<< 'int main(){}'
$ gdb ./main
(gdb) start
(gdb) step




Attached is a patch to revert the faulty commit.

Comment 1 Ben Longbons 2012-06-30 04:56:03 UTC

Created attachment 316731 [details, diff]
make debug information usable again

Comment 2 Bernard Cafarelli gentoo-dev

2012-07-05 22:27:35 UTC

Thanks for the report/test case/upstream link/patch! I've added the patch to 3.1-r1 ebuild (-9999 should get a fix upstream by itself)