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Update coverage instructions

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Nick Mathewson 2013-08-06 12:00:16 -04:00
parent 920f5aba1a
commit ad49ceba1f
1 changed files with 10 additions and 14 deletions
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doc/HACKING
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@ -118,25 +118,21 @@ Running gcov for unit test coverage
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----
make clean
make CFLAGS='-g -fprofile-arcs -ftest-coverage'
./configure --enable-coverage
make
./src/test/test
gcov -o src/common src/common/*.[ch]
gcov -o src/or src/or/*.[ch]
cd ../or; gcov *.[ch]
mkdir coverage-output
./contrib/coverage coverage-output
-----
Then, look at the .gcov files. '-' before a line means that the
compiler generated no code for that line. '######' means that the
line was never reached. Lines with numbers were called that number
of times.
(On OSX, you'll need to start with "--enable-coverage CC=clang".)
Then, look at the .gcov files in coverage-output. '-' before a line means
that the compiler generated no code for that line. '######' means that the
line was never reached. Lines with numbers were called that number of times.
If that doesn't work:
* Try configuring Tor with --disable-gcc-hardening
* On recent OSX versions, you might need to add CC=clang to your
build line, as in:
make CFLAGS='-g -fprofile-arcs -ftest-coverage' CC=clang
Their llvm-gcc doesn't work so great for me.
Profiling Tor with oprofile
~~~~~~~~~~~~~~~~~~~~~~~~~~~