diff mbox series

[v3,07/20] build-system: add clean-coverage target

Message ID 20180702143021.18864-8-alex.bennee@linaro.org
State Superseded
Headers show
Series Travis, Code Coverage and Cross Build updates | expand

Commit Message

Alex Bennée July 2, 2018, 2:30 p.m. UTC
This can be used to remove any stale coverage data before any
particular test run. This is useful for analysing individual tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

---

v2
  - s/to any/to delete any/
---
 Makefile               | 11 +++++++++++
 docs/devel/testing.rst | 11 ++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

-- 
2.17.1

Comments

Philippe Mathieu-Daudé July 2, 2018, 3:45 p.m. UTC | #1
Hi Alex,

On 07/02/2018 11:30 AM, Alex Bennée wrote:
> This can be used to remove any stale coverage data before any

> particular test run. This is useful for analysing individual tests.

> 

> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

> ---

> 

> v2

>   - s/to any/to delete any/

> ---

>  Makefile               | 11 +++++++++++

>  docs/devel/testing.rst | 11 ++++++++---

>  2 files changed, 19 insertions(+), 3 deletions(-)

> 

> diff --git a/Makefile b/Makefile

> index 7ed9cc4a21..2b3413a5ba 100644

> --- a/Makefile

> +++ b/Makefile

> @@ -723,6 +723,14 @@ module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak

>  	$(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \

>  	"GEN","$@")

>  

> +ifdef CONFIG_GCOV

> +.PHONY: clean-coverage

> +clean-coverage:

> +	$(call quiet-command, \

> +		find . \( -name '*.gcda' -o -name '*.gcov' \) -type f -exec rm {} +, \

> +		"CLEAN", "coverage files")


Would "find $(BUILD_DIR) ..." be safer?

Regardless:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>


> +endif

> +

>  clean:

>  # avoid old build problems by removing potentially incorrect old files

>  	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h

> @@ -1073,6 +1081,9 @@ endif

>  		echo '')

>  	@echo  'Cleaning targets:'

>  	@echo  '  clean           - Remove most generated files but keep the config'

> +ifdef CONFIG_GCOV

> +	@echo  '  clean-coverage  - Remove coverage files'

> +endif

>  	@echo  '  distclean       - Remove all generated files'

>  	@echo  '  dist            - Build a distributable tarball'

>  	@echo  ''

> diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst

> index 66ef219f69..7f04ca104e 100644

> --- a/docs/devel/testing.rst

> +++ b/docs/devel/testing.rst

> @@ -161,9 +161,14 @@ GCC gcov support

>  ``gcov`` is a GCC tool to analyze the testing coverage by

>  instrumenting the tested code. To use it, configure QEMU with

>  ``--enable-gcov`` option and build. Then run ``make check`` as usual.

> -Reports can be obtained by running ``gcov`` command on the output

> -files under ``$build_dir/tests/``, please read the ``gcov``

> -documentation for more information.

> +

> +If you want to gather coverage information on a single test the ``make

> +clean-coverage`` target can be used to delete any existing coverage

> +information before running a single test.

> +

> +Reports can be obtained by running ``gcov`` command

> +on the output files under ``$build_dir/tests/``, please read the

> +``gcov`` documentation for more information.

>  

>  QEMU iotests

>  ============

>
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index 7ed9cc4a21..2b3413a5ba 100644
--- a/Makefile
+++ b/Makefile
@@ -723,6 +723,14 @@  module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
 	$(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
 	"GEN","$@")
 
+ifdef CONFIG_GCOV
+.PHONY: clean-coverage
+clean-coverage:
+	$(call quiet-command, \
+		find . \( -name '*.gcda' -o -name '*.gcov' \) -type f -exec rm {} +, \
+		"CLEAN", "coverage files")
+endif
+
 clean:
 # avoid old build problems by removing potentially incorrect old files
 	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
@@ -1073,6 +1081,9 @@  endif
 		echo '')
 	@echo  'Cleaning targets:'
 	@echo  '  clean           - Remove most generated files but keep the config'
+ifdef CONFIG_GCOV
+	@echo  '  clean-coverage  - Remove coverage files'
+endif
 	@echo  '  distclean       - Remove all generated files'
 	@echo  '  dist            - Build a distributable tarball'
 	@echo  ''
diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
index 66ef219f69..7f04ca104e 100644
--- a/docs/devel/testing.rst
+++ b/docs/devel/testing.rst
@@ -161,9 +161,14 @@  GCC gcov support
 ``gcov`` is a GCC tool to analyze the testing coverage by
 instrumenting the tested code. To use it, configure QEMU with
 ``--enable-gcov`` option and build. Then run ``make check`` as usual.
-Reports can be obtained by running ``gcov`` command on the output
-files under ``$build_dir/tests/``, please read the ``gcov``
-documentation for more information.
+
+If you want to gather coverage information on a single test the ``make
+clean-coverage`` target can be used to delete any existing coverage
+information before running a single test.
+
+Reports can be obtained by running ``gcov`` command
+on the output files under ``$build_dir/tests/``, please read the
+``gcov`` documentation for more information.
 
 QEMU iotests
 ============