* [PATCH v2 1/4] selftests: livepatch: Add initial .gitignore
2024-02-21 17:17 [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Marcos Paulo de Souza
@ 2024-02-21 17:17 ` Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 2/4] selftests: livepatch: Avoid running the tests if kernel-devel is missing Marcos Paulo de Souza
` (3 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: Marcos Paulo de Souza @ 2024-02-21 17:17 UTC (permalink / raw)
To: Shuah Khan, Josh Poimboeuf, Jiri Kosina, Miroslav Benes,
Petr Mladek, Joe Lawrence
Cc: linux-kselftest, linux-kernel, live-patching,
Marcos Paulo de Souza
Ignore the binary used to test livepatching a syscall.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
tools/testing/selftests/livepatch/.gitignore | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/livepatch/.gitignore b/tools/testing/selftests/livepatch/.gitignore
new file mode 100644
index 000000000000..f1e9c2a20e99
--- /dev/null
+++ b/tools/testing/selftests/livepatch/.gitignore
@@ -0,0 +1 @@
+test_klp-call_getpid
--
2.42.1
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 2/4] selftests: livepatch: Avoid running the tests if kernel-devel is missing
2024-02-21 17:17 [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 1/4] selftests: livepatch: Add initial .gitignore Marcos Paulo de Souza
@ 2024-02-21 17:17 ` Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 3/4] selftests: lib.mk: Do not process TEST_GEN_MODS_DIR Marcos Paulo de Souza
` (2 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: Marcos Paulo de Souza @ 2024-02-21 17:17 UTC (permalink / raw)
To: Shuah Khan, Josh Poimboeuf, Jiri Kosina, Miroslav Benes,
Petr Mladek, Joe Lawrence
Cc: linux-kselftest, linux-kernel, live-patching,
Marcos Paulo de Souza, kernel test robot
By checking if KDIR is a valid directory we can safely skip the tests if
kernel-devel isn't installed (default value of KDIR), or if KDIR
variable passed doesn't exists.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402191417.XULH88Ct-lkp@intel.com/
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
tools/testing/selftests/livepatch/functions.sh | 13 +++++++++++++
tools/testing/selftests/livepatch/test_modules/Makefile | 6 ++++++
2 files changed, 19 insertions(+)
diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh
index e60cf09491a6..f0ed148d3c51 100644
--- a/tools/testing/selftests/livepatch/functions.sh
+++ b/tools/testing/selftests/livepatch/functions.sh
@@ -34,6 +34,18 @@ function is_root() {
fi
}
+# Check if we can compile the modules before loading them
+function has_kdir() {
+ if [ -z "$KDIR" ]; then
+ KDIR="/lib/modules/$(uname -r)/build"
+ fi
+
+ if [ ! -d "$KDIR" ]; then
+ echo "skip all tests: KDIR ($KDIR) not available to compile modules."
+ exit $ksft_skip
+ fi
+}
+
# die(msg) - game over, man
# msg - dying words
function die() {
@@ -108,6 +120,7 @@ function cleanup() {
# the ftrace_enabled sysctl.
function setup_config() {
is_root
+ has_kdir
push_config
set_dynamic_debug
set_ftrace_enabled 1
diff --git a/tools/testing/selftests/livepatch/test_modules/Makefile b/tools/testing/selftests/livepatch/test_modules/Makefile
index f5e880269bff..e6e638c4bcba 100644
--- a/tools/testing/selftests/livepatch/test_modules/Makefile
+++ b/tools/testing/selftests/livepatch/test_modules/Makefile
@@ -13,8 +13,14 @@ obj-m += test_klp_atomic_replace.o \
test_klp_shadow_vars.o \
test_klp_syscall.o
+# Ensure that KDIR exists, otherwise skip the compilation
modules:
+ifneq ("$(wildcard $(KDIR))", "")
$(Q)$(MAKE) -C $(KDIR) modules KBUILD_EXTMOD=$(TESTMODS_DIR)
+endif
+# Ensure that KDIR exists, otherwise skip the clean target
clean:
+ifneq ("$(wildcard $(KDIR))", "")
$(Q)$(MAKE) -C $(KDIR) clean KBUILD_EXTMOD=$(TESTMODS_DIR)
+endif
--
2.42.1
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 3/4] selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
2024-02-21 17:17 [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 1/4] selftests: livepatch: Add initial .gitignore Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 2/4] selftests: livepatch: Avoid running the tests if kernel-devel is missing Marcos Paulo de Souza
@ 2024-02-21 17:17 ` Marcos Paulo de Souza
2024-02-21 17:17 ` [PATCH v2 4/4] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling Marcos Paulo de Souza
2024-02-28 0:10 ` [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Shuah Khan
4 siblings, 0 replies; 7+ messages in thread
From: Marcos Paulo de Souza @ 2024-02-21 17:17 UTC (permalink / raw)
To: Shuah Khan, Josh Poimboeuf, Jiri Kosina, Miroslav Benes,
Petr Mladek, Joe Lawrence
Cc: linux-kselftest, linux-kernel, live-patching,
Marcos Paulo de Souza
The directory itself doesn't need have path handling, since it's only to
mean where is the directory that contains modules to be built.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
tools/testing/selftests/lib.mk | 3 ---
1 file changed, 3 deletions(-)
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 0d8b7db92715..286ce0ee102b 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -54,12 +54,9 @@ endif
# TEST_PROGS are for test shell scripts.
# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
# and install targets. Common clean doesn't touch them.
-# TEST_GEN_MODS_DIR is used to specify a directory with modules to be built
-# before the test executes. These modules are cleaned on the clean target as well.
TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
-TEST_GEN_MODS_DIR := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_MODS_DIR))
all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
$(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
--
2.42.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v2 4/4] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling
2024-02-21 17:17 [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Marcos Paulo de Souza
` (2 preceding siblings ...)
2024-02-21 17:17 ` [PATCH v2 3/4] selftests: lib.mk: Do not process TEST_GEN_MODS_DIR Marcos Paulo de Souza
@ 2024-02-21 17:17 ` Marcos Paulo de Souza
2024-02-23 22:33 ` Marcos Paulo de Souza
2024-02-28 0:10 ` [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Shuah Khan
4 siblings, 1 reply; 7+ messages in thread
From: Marcos Paulo de Souza @ 2024-02-21 17:17 UTC (permalink / raw)
To: Shuah Khan, Josh Poimboeuf, Jiri Kosina, Miroslav Benes,
Petr Mladek, Joe Lawrence
Cc: linux-kselftest, linux-kernel, live-patching,
Marcos Paulo de Souza
We don't need new targets only to run two make modules and make clean.
We can test if TEST_GEN_MODS_DIR is specified, and then run the
commands.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
tools/testing/selftests/lib.mk | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 286ce0ee102b..eddcd4a849dc 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -58,8 +58,9 @@ TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
-all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
- $(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
+all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
+ $(if $(TEST_GEN_MODS_DIR), \
+ $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR))
define RUN_TESTS
BASE_DIR="$(selfdir)"; \
@@ -85,11 +86,6 @@ else
@$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
endif
-gen_mods_dir:
- $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
-
-clean_mods_dir:
- $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
define INSTALL_SINGLE_RULE
$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
@@ -133,9 +129,11 @@ endif
define CLEAN
$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
+ $(if $(TEST_GEN_MODS_DIR), \
+ $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean)
endef
-clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
+clean:
$(CLEAN)
# Enables to extend CFLAGS and LDFLAGS from command line, e.g.
@@ -166,4 +164,4 @@ $(OUTPUT)/%:%.S
$(LINK.S) $^ $(LDLIBS) -o $@
endif
-.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir
+.PHONY: run_tests all clean install emit_tests
--
2.42.1
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH v2 4/4] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling
2024-02-21 17:17 ` [PATCH v2 4/4] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling Marcos Paulo de Souza
@ 2024-02-23 22:33 ` Marcos Paulo de Souza
0 siblings, 0 replies; 7+ messages in thread
From: Marcos Paulo de Souza @ 2024-02-23 22:33 UTC (permalink / raw)
To: Marcos Paulo de Souza
Cc: Shuah Khan, Josh Poimboeuf, Jiri Kosina, Miroslav Benes,
Petr Mladek, Joe Lawrence, linux-kselftest, linux-kernel,
live-patching
On Wed, 21 Feb 2024 14:17:06 -0300 Marcos Paulo de Souza <mpdesouza@suse.com> wrote:
Shuah, please skip this one. The simplification is not worthy if it causes a new
warning. This reply[1] explains what's going on.
Thanks in advance,
Marcos
[1]: https://lore.kernel.org/linux-kselftest/20240223161244.17709-1-mpdesouza@suse.com/
> We don't need new targets only to run two make modules and make clean.
> We can test if TEST_GEN_MODS_DIR is specified, and then run the
> commands.
>
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> ---
> tools/testing/selftests/lib.mk | 16 +++++++---------
> 1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 286ce0ee102b..eddcd4a849dc 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -58,8 +58,9 @@ TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
> TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
> TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
>
> -all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
> - $(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
> +all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
> + $(if $(TEST_GEN_MODS_DIR), \
> + $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR))
>
> define RUN_TESTS
> BASE_DIR="$(selfdir)"; \
> @@ -85,11 +86,6 @@ else
> @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
> endif
>
> -gen_mods_dir:
> - $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
> -
> -clean_mods_dir:
> - $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
>
> define INSTALL_SINGLE_RULE
> $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
> @@ -133,9 +129,11 @@ endif
>
> define CLEAN
> $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
> + $(if $(TEST_GEN_MODS_DIR), \
> + $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean)
> endef
>
> -clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
> +clean:
> $(CLEAN)
>
> # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
> @@ -166,4 +164,4 @@ $(OUTPUT)/%:%.S
> $(LINK.S) $^ $(LDLIBS) -o $@
> endif
>
> -.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir
> +.PHONY: run_tests all clean install emit_tests
>
> --
> 2.42.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next
2024-02-21 17:17 [PATCH v2 0/4] Improvements to livepatch kselftests on top of kselftest-next Marcos Paulo de Souza
` (3 preceding siblings ...)
2024-02-21 17:17 ` [PATCH v2 4/4] selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling Marcos Paulo de Souza
@ 2024-02-28 0:10 ` Shuah Khan
4 siblings, 0 replies; 7+ messages in thread
From: Shuah Khan @ 2024-02-28 0:10 UTC (permalink / raw)
To: Marcos Paulo de Souza, Shuah Khan, Josh Poimboeuf, Jiri Kosina,
Miroslav Benes, Petr Mladek, Joe Lawrence
Cc: linux-kselftest, linux-kernel, live-patching, kernel test robot,
Shuah Khan
On 2/21/24 10:17, Marcos Paulo de Souza wrote:
> The changes on lib.mk are both for simplification and also
> clarification, like in the case of not handling TEST_GEN_MODS_DIR
> directly. There is a new patch to solve one issue reported by build bot.
>
> These changes apply on top of the current kselftest-next branch. Please
> review!
>
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> ---
> Changes in v2:
> - Added a new patch to avoid building the modules/running the tests if
> kernel-devel is not installed. Resolving an issue reported by the
> build bot.
> - Reordered the patches, showing the more simple ones first. Besides
> patch 0002, all the other three didn't changed since v1.
> - Link to v1: https://lore.kernel.org/r/20240215-lp-selftests-fixes-v1-0-89f4a6f5cddc@suse.com
>
> ---
> Marcos Paulo de Souza (4):
> selftests: livepatch: Add initial .gitignore
> selftests: livepatch: Avoid running the tests if kernel-devel is missing
> selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
> selftests: lib.mk: Simplify TEST_GEN_MODS_DIR handling
>
> tools/testing/selftests/lib.mk | 19 +++++++------------
> tools/testing/selftests/livepatch/.gitignore | 1 +
> tools/testing/selftests/livepatch/functions.sh | 13 +++++++++++++
> .../testing/selftests/livepatch/test_modules/Makefile | 6 ++++++
> 4 files changed, 27 insertions(+), 12 deletions(-)
> ---
> base-commit: 6f1a214d446b2f2f9c8c4b96755a8f0316ba4436
> change-id: 20240215-lp-selftests-fixes-7d4bab3c0712
>
> Best regards,
Applied all except the last patch to linux-kelftest next for Linux 6.9-rc1
thanks,
-- Shuah
^ permalink raw reply [flat|nested] 7+ messages in thread