From 934baa3bb14594428427bac31bf98b081c2156e0 Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Mon, 12 Jan 2015 18:19:45 -0800
Subject: [PATCH 1/4] Add tools/run_tests/run_lcov.sh

This is a tool for collecting coverage reports from our tests and
combining them with the open-source tool 'lcov'.
---
 .gitignore                   |  1 +
 Makefile                     |  9 +++++++++
 tools/run_tests/run_lcov.sh  | 18 ++++++++++++++++++
 tools/run_tests/run_tests.py |  1 +
 4 files changed, 29 insertions(+)
 create mode 100755 tools/run_tests/run_lcov.sh

diff --git a/.gitignore b/.gitignore
index 5202b53ad25..192b55fb438 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ deps
 libs
 objs
 *.pyc
+*.gcno
 
diff --git a/Makefile b/Makefile
index 35c2d848003..ae78f8259d0 100644
--- a/Makefile
+++ b/Makefile
@@ -49,6 +49,15 @@ CPPFLAGS_msan = -O1 -fsanitize=memory -fno-omit-frame-pointer
 LDFLAGS_msan = -fsanitize=memory
 DEFINES_msan = NDEBUG
 
+VALID_CONFIG_gcov = 1
+CC_gcov = gcc
+CXX_gcov = g++
+LD_gcov = gcc
+LDXX_gcov = g++
+CPPFLAGS_gcov = -O0 -fprofile-arcs -ftest-coverage
+LDFLAGS_gcov = -fprofile-arcs -ftest-coverage
+DEFINES_gcov = NDEBUG
+
 # General settings.
 # You may want to change these depending on your system.
 
diff --git a/tools/run_tests/run_lcov.sh b/tools/run_tests/run_lcov.sh
new file mode 100755
index 00000000000..6f22b0e8a41
--- /dev/null
+++ b/tools/run_tests/run_lcov.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -ex
+
+out=`realpath ${1:-coverage}`
+
+root=`realpath $(dirname $0)/../..`
+tmp=`mktemp`
+cd $root
+tools/run_tests/run_tests.py -c gcov
+lcov --capture --directory . --output-file $tmp
+genhtml $tmp --output-directory $out
+rm $tmp
+if which xdg-open > /dev/null
+then
+  xdg-open file://$out/index.html
+fi
+
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 7ddf50c4a88..4cf442287a6 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -37,6 +37,7 @@ _CONFIGS = {
   'tsan': SimpleConfig('tsan'),
   'msan': SimpleConfig('msan'),
   'asan': SimpleConfig('asan'),
+  'gcov': SimpleConfig('gcov'),
   'valgrind': ValgrindConfig('dbg'),
   }
 

From 209dc44050578e08786d5c10755ad7a58fea9deb Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Tue, 13 Jan 2015 09:54:30 -0800
Subject: [PATCH 2/4] Add some ignores

---
 .gitignore | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.gitignore b/.gitignore
index 192b55fb438..8087bd6ce5a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 bins
+coverage
 deps
+gens
 libs
 objs
 *.pyc

From d7abc8079ddf9e70e809bb04de4adb4f2485e052 Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Tue, 13 Jan 2015 12:46:02 -0800
Subject: [PATCH 3/4] Sort gitignore

---
 .gitignore | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 8087bd6ce5a..3cae07ed12f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,8 @@
 bins
 coverage
 deps
+*.gcno
 gens
 libs
 objs
 *.pyc
-*.gcno
-

From 699ba2135a4bea55c431f23ab6e3ebd3981b63ca Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Tue, 13 Jan 2015 17:02:20 -0800
Subject: [PATCH 4/4] Fix Makefile.template

---
 templates/Makefile.template | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/templates/Makefile.template b/templates/Makefile.template
index d0ebb102408..b835c337e88 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -66,6 +66,15 @@ CPPFLAGS_msan = -O1 -fsanitize=memory -fno-omit-frame-pointer
 LDFLAGS_msan = -fsanitize=memory
 DEFINES_msan = NDEBUG
 
+VALID_CONFIG_gcov = 1
+CC_gcov = gcc
+CXX_gcov = g++
+LD_gcov = gcc
+LDXX_gcov = g++
+CPPFLAGS_gcov = -O0 -fprofile-arcs -ftest-coverage
+LDFLAGS_gcov = -fprofile-arcs -ftest-coverage
+DEFINES_gcov = NDEBUG
+
 # General settings.
 # You may want to change these depending on your system.