From ade89cd31c31d64bdc1232d68a8390f8e66c3f3b Mon Sep 17 00:00:00 2001 From: Vedant Kumar Date: Tue, 14 Jun 2016 00:42:12 +0000 Subject: [PATCH] [docs] Coverage: Document the profile merge pool specifier git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@272604 91177308-0d34-0410-b5e6-96231b3b80d8 --- docs/SourceBasedCodeCoverage.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/docs/SourceBasedCodeCoverage.rst b/docs/SourceBasedCodeCoverage.rst index ff43c931ea..95b2eb692b 100644 --- a/docs/SourceBasedCodeCoverage.rst +++ b/docs/SourceBasedCodeCoverage.rst @@ -78,6 +78,14 @@ directory structure will be created. Additionally, the following special * "%h" expands out to the hostname of the machine running the program. +* "%Nm" expands out to the instrumented binary's signature. When this pattern + is specified, the runtime creates a pool of N raw profiles which are used for + on-line profile merging. The runtime takes care of selecting a raw profile + from the pool, locking it, and updating it before the program exits. If N is + not specified (i.e the pattern is "%m"), it's assumed that ``N = 1``. N must + be between 1 and 9. The merge pool specifier can only occur once per filename + pattern. + .. code-block:: console # Step 2: Run the program. -- 2.40.0