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You need --coverage when linking as well

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2022-12-01 17:41:36 +01:00
parent 749a0d7be8
commit 202b1a07ba
2 changed files with 10 additions and 3 deletions
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5
Makefile
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@ -136,8 +136,9 @@ check: lib tests
test: check
ifndef WINDOWS
# note: for coverage testing, build with:
# make CFLAGS='--coverage -g3 -O0'
# Note: for coverage testing, build with:
# make CFLAGS='--coverage -g3 -O0' LDFLAGS='--coverage -g3 -O0'
# For the reference coverage measurement, see tests/scripts/basic-build-test.sh
covtest:
$(MAKE) check
programs/test/selftest

8
scripts/lcov.sh
View file

@ -6,8 +6,14 @@ Usage: $0 [-r]
Collect coverage statistics of library code into an HTML report.
General instructions:
1. Build the library with CFLAGS="--coverage -O0 -g3".
1. Build the library with CFLAGS="--coverage -O0 -g3" and link the test
programs with LDFLAGS="--coverage".
This can be an out-of-tree build.
For example (in-tree):
make CFLAGS="--coverage -O0 -g3" LDFLAGS="--coverage"
Or (out-of-tree):
mkdir build-coverage && cd build-coverage &&
cmake -D CMAKE_BUILD_TYPE=Coverage .. && make
2. Run whatever tests you want.
3. Run this script from the parent of the directory containing the library
object files and coverage statistics files.