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Merge branch 'jk/build-with-asan'

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The build procedure has been improved to allow building and testing
Git with address sanitizer more easily.

* jk/build-with-asan:
  Makefile: disable unaligned loads with UBSan
  Makefile: turn off -fomit-frame-pointer with sanitizers
  Makefile: add helper for compiling with -fsanitize
  test-lib: turn on ASan abort_on_error by default
  test-lib: set ASAN_OPTIONS variable before we run git
This commit is contained in:
Junio C Hamano 2017-07-13 16:14:54 -07:00
parent c9c63ee558 566cf0b3bd
commit 757e9874be
2 changed files with 16 additions and 3 deletions
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8
Makefile
View file

@ -1022,6 +1022,14 @@ ifdef DEVELOPER
CFLAGS += $(DEVELOPER_CFLAGS)
endif
ifdef SANITIZE
BASIC_CFLAGS += -fsanitize=$(SANITIZE) -fno-sanitize-recover=$(SANITIZE)
BASIC_CFLAGS += -fno-omit-frame-pointer
ifeq ($(SANITIZE),undefined)
BASIC_CFLAGS += -DNO_UNALIGNED_LOADS
endif
endif
ifndef sysconfdir
ifeq ($(prefix),/usr)
sysconfdir = /etc

11
t/test-lib.sh
View file

@ -36,6 +36,14 @@ then
fi
GIT_BUILD_DIR="$TEST_DIRECTORY"/..
# If we were built with ASAN, it may complain about leaks
# of program-lifetime variables. Disable it by default to lower
# the noise level. This needs to happen at the start of the script,
# before we even do our "did we build git yet" check (since we don't
# want that one to complain to stderr).
: ${ASAN_OPTIONS=detect_leaks=0:abort_on_error=1}
export ASAN_OPTIONS
################################################################
# It appears that people try to run tests without building...
"$GIT_BUILD_DIR/git" >/dev/null
@ -148,9 +156,6 @@ else
}
fi
: ${ASAN_OPTIONS=detect_leaks=0}
export ASAN_OPTIONS
# Protect ourselves from common misconfiguration to export
# CDPATH into the environment
unset CDPATH