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Message-ID: <YHXnu2xRzPpaI3cn@kernel.org>
Date: Tue, 13 Apr 2021 15:49:31 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Rob Herring <robh@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...hat.com>,
linux-kernel@...r.kernel.org, Will Deacon <will@...nel.org>,
Catalin Marinas <catalin.marinas@....com>,
Mark Rutland <mark.rutland@....com>,
Namhyung Kim <namhyung@...nel.org>,
Itaru Kitayama <itaru.kitayama@...il.com>
Subject: Re: [PATCH v7 3/4] libperf: tests: Add support for verbose printing
Em Tue, Apr 13, 2021 at 12:16:05PM -0500, Rob Herring escreveu:
> Add __T_VERBOSE() so tests can add verbose output. The verbose output is
> enabled with the '-v' command line option.
You forgot to show how this is used, I'm trying:
# cd tools/lib/perf
# sudo make tests
So how from the command line one asks for verbose output from the tests?
Should be:
# sudo make tests V=1
?
The default output, non-verbose, is:
[acme@...e perf]$ sudo make tests
LINK test-cpumap-a
LINK test-threadmap-a
LINK test-evlist-a
LINK test-evsel-a
LINK test-cpumap-so
LINK test-threadmap-so
LINK test-evlist-so
LINK test-evsel-so
running static:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
running dynamic:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
[acme@...e perf]$
Trying a verbose mode:
[acme@...e perf]$ sudo make tests V=1
make -f /home/acme/git/perf/tools/build/Makefile.build dir=. obj=libperf
make -C /home/acme/git/perf/tools/lib/api/ O= libapi.a
make -f /home/acme/git/perf/tools/build/Makefile.build dir=./fd obj=libapi
make -f /home/acme/git/perf/tools/build/Makefile.build dir=./fs obj=libapi
make -C tests
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -o test-cpumap-a test-cpumap.c ../libperf.a /home/acme/git/perf/tools/lib/api/libapi.a
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -o test-threadmap-a test-threadmap.c ../libperf.a /home/acme/git/perf/tools/lib/api/libapi.a
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -o test-evlist-a test-evlist.c ../libperf.a /home/acme/git/perf/tools/lib/api/libapi.a
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -o test-evsel-a test-evsel.c ../libperf.a /home/acme/git/perf/tools/lib/api/libapi.a
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -L.. -o test-cpumap-so test-cpumap.c /home/acme/git/perf/tools/lib/api/libapi.a -lperf
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -L.. -o test-threadmap-so test-threadmap.c /home/acme/git/perf/tools/lib/api/libapi.a -lperf
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -L.. -o test-evlist-so test-evlist.c /home/acme/git/perf/tools/lib/api/libapi.a -lperf
gcc -I/home/acme/git/perf/tools/lib/perf/include -I/home/acme/git/perf/tools/include -I/home/acme/git/perf/tools/lib -g -Wall -L.. -o test-evsel-so test-evsel.c /home/acme/git/perf/tools/lib/api/libapi.a -lperf
make -C tests run
running static:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
running dynamic:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
[acme@...e perf]$
I'm only getting a move verbose output for the Makefile steps, not from
the actual tests.
Perhaps if I read the last cset... will do that now.
- Arnaldo
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> v5:
> - Pass verbose flag to static tests
> - Fix getopt loop with unsigned char (arm64)
> v3:
> - New patch
> ---
> tools/lib/perf/include/internal/tests.h | 32 +++++++++++++++++++++++++
> tools/lib/perf/tests/Makefile | 6 +++--
> 2 files changed, 36 insertions(+), 2 deletions(-)
>
> diff --git a/tools/lib/perf/include/internal/tests.h b/tools/lib/perf/include/internal/tests.h
> index 2093e8868a67..29425c2dabe1 100644
> --- a/tools/lib/perf/include/internal/tests.h
> +++ b/tools/lib/perf/include/internal/tests.h
> @@ -3,11 +3,32 @@
> #define __LIBPERF_INTERNAL_TESTS_H
>
> #include <stdio.h>
> +#include <unistd.h>
>
> int tests_failed;
> +int tests_verbose;
> +
> +static inline int get_verbose(char **argv, int argc)
> +{
> + int c;
> + int verbose = 0;
> +
> + while ((c = getopt(argc, argv, "v")) != -1) {
> + switch (c)
> + {
> + case 'v':
> + verbose = 1;
> + break;
> + default:
> + break;
> + }
> + }
> + return verbose;
> +}
>
> #define __T_START \
> do { \
> + tests_verbose = get_verbose(argv, argc); \
> fprintf(stdout, "- running %s...", __FILE__); \
> fflush(NULL); \
> tests_failed = 0; \
> @@ -30,4 +51,15 @@ do {
> } \
> } while (0)
>
> +#define __T_VERBOSE(...) \
> +do { \
> + if (tests_verbose) { \
> + if (tests_verbose == 1) { \
> + fputc('\n', stderr); \
> + tests_verbose++; \
> + } \
> + fprintf(stderr, ##__VA_ARGS__); \
> + } \
> +} while (0)
> +
> #endif /* __LIBPERF_INTERNAL_TESTS_H */
> diff --git a/tools/lib/perf/tests/Makefile b/tools/lib/perf/tests/Makefile
> index 96841775feaf..b536cc9a26dd 100644
> --- a/tools/lib/perf/tests/Makefile
> +++ b/tools/lib/perf/tests/Makefile
> @@ -5,6 +5,8 @@ TESTS = test-cpumap test-threadmap test-evlist test-evsel
> TESTS_SO := $(addsuffix -so,$(TESTS))
> TESTS_A := $(addsuffix -a,$(TESTS))
>
> +TEST_ARGS := $(if $(V),-v)
> +
> # Set compile option CFLAGS
> ifdef EXTRA_CFLAGS
> CFLAGS := $(EXTRA_CFLAGS)
> @@ -28,9 +30,9 @@ all: $(TESTS_A) $(TESTS_SO)
>
> run:
> @echo "running static:"
> - @for i in $(TESTS_A); do ./$$i; done
> + @for i in $(TESTS_A); do ./$$i $(TEST_ARGS); done
> @echo "running dynamic:"
> - @for i in $(TESTS_SO); do LD_LIBRARY_PATH=../ ./$$i; done
> + @for i in $(TESTS_SO); do LD_LIBRARY_PATH=../ ./$$i $(TEST_ARGS); done
>
> clean:
> $(call QUIET_CLEAN, tests)$(RM) $(TESTS_A) $(TESTS_SO)
> --
> 2.27.0
>
--
- Arnaldo
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