Module: ppl/ppl Branch: master Commit: 6a1b3b278146ed990e74b338c1608471d3314be8 URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=6a1b3b278146e...
Author: Enea Zaffanella zaffanella@cs.unipr.it Date: Thu Sep 10 15:24:16 2009 +0200
Suggest using -fno-elide-constructors when configuring for coverage.
---
STANDARDS | 17 +++++++++++------ 1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/STANDARDS b/STANDARDS index 43654aa..e0096c7 100644 --- a/STANDARDS +++ b/STANDARDS @@ -566,12 +566,17 @@ o Ideally the tests should exercise every line of code in the library. Here we summarize the steps needed to produce coverage information using `lcov' (see below for a few hints on the direct use of `gcov'). The build tree under test must be configured with the - `--enable-coverage' and `--disable-optimization options' (and possibly - also with --enable-profiling). For example: - - $ configure --enable-coverage --disable-optimization \ - --enable-profiling \ - --enable-assertions --enable-more-assertions + `--enable-coverage' and `--disable-optimization' options (and possibly + also with --enable-profiling). Furthermore, according to this thread + http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12076 + GCC performs NRV (Named Return Value) transformations even when + optimizations are turned off; hence, to avoid spurious zero counts + in return statements, the compilation flag `-fno-elide-constructors' + is recommended. For example: + + $ configure --enable-coverage --enable-profiling \ + --disable-optimization --with-cxxflags='-fno-elide-constructors' \ + --enable-assertions --enable-more-assertions
Running the tests (with `make check') produces many .gcno and .gcda files in src/.libs and in the test directories. These are data