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selftests/landlock: Fix out-of-tree builds

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These changes simplify the Makefile and handle these 5 ways to build
Landlock tests:
- make -C tools/testing/selftests/landlock
- make -C tools/testing/selftests TARGETS=landlock gen_tar
- make TARGETS=landlock kselftest-gen_tar
- make TARGETS=landlock O=build kselftest-gen_tar
- make -C /tmp/linux TARGETS=landlock O=/tmp/build kselftest-gen_tar

This also makes $(KHDR_INCLUDES) available to other test collections
when building in their directory.

Fixes: f1227dc7d0 ("selftests/landlock: fix broken include of linux/landlock.h")
Fixes: 3bb267a361 ("selftests: drop khdr make target")
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20220909103402.1501802-1-mic@digikod.net
This commit is contained in:
Mickaël Salaün 2022-09-09 12:34:02 +02:00
parent 80e78fcce8
commit a52540522c
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GPG key ID: E5E3D0E88C82F6D2
2 changed files with 14 additions and 9 deletions
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19
tools/testing/selftests/landlock/Makefile
View file

@ -1,6 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
#
# First run: make -C ../../../.. headers_install
CFLAGS += -Wall -O2 $(KHDR_INCLUDES)
LDLIBS += -lcap
LOCAL_HDRS += common.h
src_test := $(wildcard *_test.c)
@ -8,14 +13,10 @@ TEST_GEN_PROGS := $(src_test:.c=)
TEST_GEN_PROGS_EXTENDED := true
OVERRIDE_TARGETS := 1
top_srcdir := ../../../..
# Static linking for short targets:
$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static
include ../lib.mk
khdr_dir = $(top_srcdir)/usr/include
$(OUTPUT)/true: true.c
$(LINK.c) $< $(LDLIBS) -o $@ -static
$(OUTPUT)/%_test: %_test.c $(khdr_dir)/linux/landlock.h ../kselftest_harness.h common.h
$(LINK.c) $< $(LDLIBS) -o $@ -lcap -I$(khdr_dir)
# Static linking for targets with $(OUTPUT)/ prefix:
$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static

4
tools/testing/selftests/lib.mk
View file

@ -42,6 +42,10 @@ endif
selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
top_srcdir = $(selfdir)/../../..
ifeq ($(KHDR_INCLUDES),)
KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
endif
# The following are built by lib.mk common compile rules.
# TEST_CUSTOM_PROGS should be used by tests that require
# custom build rule and prevent common build rule use.