From ff84b9403504ae9eaefbc1eafe58da87dd590e39 Mon Sep 17 00:00:00 2001 From: Vedant Kumar Date: Mon, 19 Jun 2017 21:22:05 +0000 Subject: [PATCH] [docs] Coverage: document issue with the BFD linker git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@305743 91177308-0d34-0410-b5e6-96231b3b80d8 --- docs/SourceBasedCodeCoverage.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/SourceBasedCodeCoverage.rst b/docs/SourceBasedCodeCoverage.rst index 474af30ae3..c38a00386d 100644 --- a/docs/SourceBasedCodeCoverage.rst +++ b/docs/SourceBasedCodeCoverage.rst @@ -274,6 +274,11 @@ To specify an alternate directory for raw profiles, use Drawbacks and limitations ========================= +* Prior to version 2.26, the GNU binutils BFD linker is not able link programs + with coverage enabled when the ``--gc-sections`` is enabled. The suggested + workaround is to either upgrade to a newer version of BFD, or to use the Gold + linker. + * Code coverage does not handle unpredictable changes in control flow or stack unwinding in the presence of exceptions precisely. Consider the following function: -- 2.40.0