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libgo patch committed: Get missing function names from symbol table

From: Ian Lance Taylor <iant at golang dot org>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, gofrontend-dev at googlegroups dot com
Date: Thu, 8 Feb 2018 07:37:50 -0800
Subject: libgo patch committed: Get missing function names from symbol table
Authentication-results: sourceware.org; auth=none

This libgo patch changes the traceback code to get missing function
name from the symbol table.  If we trace back through code that has no
debug info, as when calling through C code compiled with -g0, we won't
have a function name.  Try to fetch the function name using the symbol
table.

Adding the test case revealed that gotest failed to use the gccgo tag
when matching files, so add that.

Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.  Committed
to mainline.

Ian

Attachment: patch.txt
Description: Text document

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