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autogen: add shortcut for running scan-build

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scan-build is a static analyzer in llvm. As ususal static analyzers
tend to mostly find theoretical bugs in software that has been in
production for a while. For in-development code it can be useful to
check if new issues is added as there is a chance to spot real problems
before release. For systemd we are now down to 297 issues - the vast
majority are false positives because the tool does not understand the
cleanup attribute.

Running clang's static analyzer scan-build is a bit messy. You have to
run both configure and make "inside" the build-scan tool. To have an
easy shortcut from autogen.sh I thus call both directly from it. This
makes it different from the other options in autogen.sh. I chose 's'
for static analysis.

scan-build is in the package clang-analyzer on fedora.
This commit is contained in:
Thomas Hindoe Paaboel Andersen 2013-12-27 21:57:12 +01:00
parent bd3539b222
commit a8c78decf0
1 changed files with 3 additions and 0 deletions
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3
autogen.sh
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@ -65,6 +65,9 @@ elif [ "x$1" = "xa" ]; then
elif [ "x$1" = "xl" ]; then
./configure CC=clang CFLAGS='-g -O0 -ftrapv -Wno-cast-align -Wno-gnu' --enable-kdbus $args
make clean
elif [ "x$1" = "xs" ]; then
scan-build ./configure CFLAGS='-g -O0 -ftrapv' --enable-kdbus $args
scan-build make
else
echo
echo "----------------------------------------------------------------"