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test: provide machinery to make and use test_shims

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These can be used e.g. to override return values for functions, in
place of the existing scripting of gdb.

This prepends to LD_PRELOAD rather than clobbering it, thanks to a
suggestion from Tomi Ollila.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
This commit is contained in:
David Bremner 2019-06-26 12:23:36 -04:00
parent 11f7e52651
commit 6544a2e305
1 changed files with 16 additions and 0 deletions
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16
test/test-lib.sh
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@ -95,6 +95,8 @@ TEST_EMACSCLIENT=${TEST_EMACSCLIENT:-emacsclient}
TEST_GDB=${TEST_GDB:-gdb} TEST_GDB=${TEST_GDB:-gdb}
TEST_CC=${TEST_CC:-cc} TEST_CC=${TEST_CC:-cc}
TEST_CFLAGS=${TEST_CFLAGS:-"-g -O0"} TEST_CFLAGS=${TEST_CFLAGS:-"-g -O0"}
TEST_SHIM_CFLAGS=${TEST_SHIM_CFLAGS:-"-fpic -shared"}
TEST_SHIM_LDFLAGS=${TEST_SHIM_LDFLAGS:-"-ldl"}
# Protect ourselves from common misconfiguration to export # Protect ourselves from common misconfiguration to export
# CDPATH into the environment # CDPATH into the environment
@ -1056,6 +1058,20 @@ test_C () {
notmuch_dir_sanitize OUTPUT.stdout OUTPUT.stderr > OUTPUT notmuch_dir_sanitize OUTPUT.stdout OUTPUT.stderr > OUTPUT
} }
make_shim () {
base_name="$1"
test_file="${base_name}.c"
shim_file="${base_name}.so"
cat > ${test_file}
${TEST_CC} ${TEST_CFLAGS} ${TEST_SHIM_CFLAGS} -I${NOTMUCH_SRCDIR}/test -I${NOTMUCH_SRCDIR}/lib -o ${shim_file} ${test_file} ${TEST_SHIM_LDFLAGS}
}
notmuch_with_shim () {
base_name="$1"
shift
shim_file="${base_name}.so"
LD_PRELOAD=./${shim_file}${LD_PRELOAD:+:$LD_PRELOAD} notmuch-shared "$@"
}
# Creates a script that counts how much time it is executed and calls # Creates a script that counts how much time it is executed and calls
# notmuch. $notmuch_counter_command is set to the path to the # notmuch. $notmuch_counter_command is set to the path to the