diff mbox series

[v2,1/2] perf build: Properly guard libbpf includes

Message ID 20230106142537.607399-1-irogers@google.com
State New
Headers
Series [v2,1/2] perf build: Properly guard libbpf includes |

Commit Message

Ian Rogers Jan. 6, 2023, 2:25 p.m. UTC 
  Including libbpf header files should be guarded by
HAVE_LIBBPF_SUPPORT. In bpf_counter.h, move the skeleton utilities
under HAVE_BPF_SKEL.

Fixes: d6a735ef3277 ("perf bpf_counter: Move common functions to bpf_counter.h")
Reported-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/builtin-trace.c    |  2 +
 tools/perf/util/bpf_counter.h | 85 ++++++++++++++++++-----------------
 2 files changed, 46 insertions(+), 41 deletions(-)

Comments

Arnaldo Carvalho de Melo Jan. 6, 2023, 2:55 p.m. UTC | #1 
Em Fri, Jan 06, 2023 at 06:25:36AM -0800, Ian Rogers escreveu:
> Including libbpf header files should be guarded by
> HAVE_LIBBPF_SUPPORT. In bpf_counter.h, move the skeleton utilities
> under HAVE_BPF_SKEL.
> 
> Fixes: d6a735ef3277 ("perf bpf_counter: Move common functions to bpf_counter.h")
> Reported-by: Mike Leach <mike.leach@linaro.org>
> Signed-off-by: Ian Rogers <irogers@google.com>

Can this be done in a way that reduces patch size?

- Arnaldo

> ---
>  tools/perf/builtin-trace.c    |  2 +
>  tools/perf/util/bpf_counter.h | 85 ++++++++++++++++++-----------------
>  2 files changed, 46 insertions(+), 41 deletions(-)
> 
> diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> index 86e06f136f40..d21fe0f32a6d 100644
> --- a/tools/perf/builtin-trace.c
> +++ b/tools/perf/builtin-trace.c
> @@ -16,7 +16,9 @@
>  
>  #include "util/record.h"
>  #include <api/fs/tracing_path.h>
> +#ifdef HAVE_LIBBPF_SUPPORT
>  #include <bpf/bpf.h>
> +#endif
>  #include "util/bpf_map.h"
>  #include "util/rlimit.h"
>  #include "builtin.h"
> diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
> index 4dbf26408b69..9113c8bf5cb0 100644
> --- a/tools/perf/util/bpf_counter.h
> +++ b/tools/perf/util/bpf_counter.h
> @@ -4,9 +4,12 @@
>  
>  #include <linux/list.h>
>  #include <sys/resource.h>
> +
> +#ifdef HAVE_LIBBPF_SUPPORT
>  #include <bpf/bpf.h>
>  #include <bpf/btf.h>
>  #include <bpf/libbpf.h>
> +#endif
>  
>  struct evsel;
>  struct target;
> @@ -42,6 +45,47 @@ int bpf_counter__read(struct evsel *evsel);
>  void bpf_counter__destroy(struct evsel *evsel);
>  int bpf_counter__install_pe(struct evsel *evsel, int cpu_map_idx, int fd);
>  
> +static inline __u32 bpf_link_get_id(int fd)
> +{
> +	struct bpf_link_info link_info = { .id = 0, };
> +	__u32 link_info_len = sizeof(link_info);
> +
> +	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> +	return link_info.id;
> +}
> +
> +static inline __u32 bpf_link_get_prog_id(int fd)
> +{
> +	struct bpf_link_info link_info = { .id = 0, };
> +	__u32 link_info_len = sizeof(link_info);
> +
> +	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> +	return link_info.prog_id;
> +}
> +
> +static inline __u32 bpf_map_get_id(int fd)
> +{
> +	struct bpf_map_info map_info = { .id = 0, };
> +	__u32 map_info_len = sizeof(map_info);
> +
> +	bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> +	return map_info.id;
> +}
> +
> +/* trigger the leader program on a cpu */
> +static inline int bperf_trigger_reading(int prog_fd, int cpu)
> +{
> +	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> +			    .ctx_in = NULL,
> +			    .ctx_size_in = 0,
> +			    .flags = BPF_F_TEST_RUN_ON_CPU,
> +			    .cpu = cpu,
> +			    .retval = 0,
> +		);
> +
> +	return bpf_prog_test_run_opts(prog_fd, &opts);
> +}
> +
>  #else /* HAVE_BPF_SKEL */
>  
>  #include <linux/err.h>
> @@ -87,45 +131,4 @@ static inline void set_max_rlimit(void)
>  	setrlimit(RLIMIT_MEMLOCK, &rinf);
>  }
>  
> -static inline __u32 bpf_link_get_id(int fd)
> -{
> -	struct bpf_link_info link_info = { .id = 0, };
> -	__u32 link_info_len = sizeof(link_info);
> -
> -	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> -	return link_info.id;
> -}
> -
> -static inline __u32 bpf_link_get_prog_id(int fd)
> -{
> -	struct bpf_link_info link_info = { .id = 0, };
> -	__u32 link_info_len = sizeof(link_info);
> -
> -	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> -	return link_info.prog_id;
> -}
> -
> -static inline __u32 bpf_map_get_id(int fd)
> -{
> -	struct bpf_map_info map_info = { .id = 0, };
> -	__u32 map_info_len = sizeof(map_info);
> -
> -	bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> -	return map_info.id;
> -}
> -
> -/* trigger the leader program on a cpu */
> -static inline int bperf_trigger_reading(int prog_fd, int cpu)
> -{
> -	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> -			    .ctx_in = NULL,
> -			    .ctx_size_in = 0,
> -			    .flags = BPF_F_TEST_RUN_ON_CPU,
> -			    .cpu = cpu,
> -			    .retval = 0,
> -		);
> -
> -	return bpf_prog_test_run_opts(prog_fd, &opts);
> -}
> -
>  #endif /* __PERF_BPF_COUNTER_H */
> -- 
> 2.39.0.314.g84b9a713c41-goog
Mike Leach Jan. 6, 2023, 3:12 p.m. UTC | #2 
On Fri, 6 Jan 2023 at 14:55, Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>
> Em Fri, Jan 06, 2023 at 06:25:36AM -0800, Ian Rogers escreveu:
> > Including libbpf header files should be guarded by
> > HAVE_LIBBPF_SUPPORT. In bpf_counter.h, move the skeleton utilities
> > under HAVE_BPF_SKEL.
> >
> > Fixes: d6a735ef3277 ("perf bpf_counter: Move common functions to bpf_counter.h")
> > Reported-by: Mike Leach <mike.leach@linaro.org>
> > Signed-off-by: Ian Rogers <irogers@google.com>
>
> Can this be done in a way that reduces patch size?
>
> - Arnaldo
>
> > ---
> >  tools/perf/builtin-trace.c    |  2 +
> >  tools/perf/util/bpf_counter.h | 85 ++++++++++++++++++-----------------
> >  2 files changed, 46 insertions(+), 41 deletions(-)
> >
> > diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> > index 86e06f136f40..d21fe0f32a6d 100644
> > --- a/tools/perf/builtin-trace.c
> > +++ b/tools/perf/builtin-trace.c
> > @@ -16,7 +16,9 @@
> >
> >  #include "util/record.h"
> >  #include <api/fs/tracing_path.h>
> > +#ifdef HAVE_LIBBPF_SUPPORT
> >  #include <bpf/bpf.h>
> > +#endif
> >  #include "util/bpf_map.h"
> >  #include "util/rlimit.h"
> >  #include "builtin.h"
> > diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
> > index 4dbf26408b69..9113c8bf5cb0 100644
> > --- a/tools/perf/util/bpf_counter.h
> > +++ b/tools/perf/util/bpf_counter.h
> > @@ -4,9 +4,12 @@
> >
> >  #include <linux/list.h>
> >  #include <sys/resource.h>
> > +
> > +#ifdef HAVE_LIBBPF_SUPPORT
> >  #include <bpf/bpf.h>
> >  #include <bpf/btf.h>
> >  #include <bpf/libbpf.h>
> > +#endif
> >
> >  struct evsel;
> >  struct target;
> > @@ -42,6 +45,47 @@ int bpf_counter__read(struct evsel *evsel);
> >  void bpf_counter__destroy(struct evsel *evsel);
> >  int bpf_counter__install_pe(struct evsel *evsel, int cpu_map_idx, int fd);
> >
> > +static inline __u32 bpf_link_get_id(int fd)
> > +{
> > +     struct bpf_link_info link_info = { .id = 0, };
> > +     __u32 link_info_len = sizeof(link_info);
> > +
> > +     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > +     return link_info.id;
> > +}
> > +
> > +static inline __u32 bpf_link_get_prog_id(int fd)
> > +{
> > +     struct bpf_link_info link_info = { .id = 0, };
> > +     __u32 link_info_len = sizeof(link_info);
> > +
> > +     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > +     return link_info.prog_id;
> > +}
> > +
> > +static inline __u32 bpf_map_get_id(int fd)
> > +{
> > +     struct bpf_map_info map_info = { .id = 0, };
> > +     __u32 map_info_len = sizeof(map_info);
> > +
> > +     bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> > +     return map_info.id;
> > +}
> > +
> > +/* trigger the leader program on a cpu */
> > +static inline int bperf_trigger_reading(int prog_fd, int cpu)
> > +{
> > +     DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> > +                         .ctx_in = NULL,
> > +                         .ctx_size_in = 0,
> > +                         .flags = BPF_F_TEST_RUN_ON_CPU,
> > +                         .cpu = cpu,
> > +                         .retval = 0,
> > +             );
> > +
> > +     return bpf_prog_test_run_opts(prog_fd, &opts);
> > +}
> > +
> >  #else /* HAVE_BPF_SKEL */
> >
> >  #include <linux/err.h>
> > @@ -87,45 +131,4 @@ static inline void set_max_rlimit(void)
> >       setrlimit(RLIMIT_MEMLOCK, &rinf);
> >  }
> >
> > -static inline __u32 bpf_link_get_id(int fd)
> > -{
> > -     struct bpf_link_info link_info = { .id = 0, };
> > -     __u32 link_info_len = sizeof(link_info);
> > -
> > -     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > -     return link_info.id;
> > -}
> > -
> > -static inline __u32 bpf_link_get_prog_id(int fd)
> > -{
> > -     struct bpf_link_info link_info = { .id = 0, };
> > -     __u32 link_info_len = sizeof(link_info);
> > -
> > -     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > -     return link_info.prog_id;
> > -}
> > -
> > -static inline __u32 bpf_map_get_id(int fd)
> > -{
> > -     struct bpf_map_info map_info = { .id = 0, };
> > -     __u32 map_info_len = sizeof(map_info);
> > -
> > -     bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> > -     return map_info.id;
> > -}
> > -
> > -/* trigger the leader program on a cpu */
> > -static inline int bperf_trigger_reading(int prog_fd, int cpu)
> > -{
> > -     DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> > -                         .ctx_in = NULL,
> > -                         .ctx_size_in = 0,
> > -                         .flags = BPF_F_TEST_RUN_ON_CPU,
> > -                         .cpu = cpu,
> > -                         .retval = 0,
> > -             );
> > -
> > -     return bpf_prog_test_run_opts(prog_fd, &opts);
> > -}
> > -
> >  #endif /* __PERF_BPF_COUNTER_H */
> > --
> > 2.39.0.314.g84b9a713c41-goog
>

Tested-by: Mike Leach <mike.leach@linaro.org>

> --
>
> - Arnaldo
Ian Rogers Jan. 6, 2023, 3:14 p.m. UTC | #3 
On Fri, Jan 6, 2023 at 7:12 AM Mike Leach <mike.leach@linaro.org> wrote:
>
> On Fri, 6 Jan 2023 at 14:55, Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> >
> > Em Fri, Jan 06, 2023 at 06:25:36AM -0800, Ian Rogers escreveu:
> > > Including libbpf header files should be guarded by
> > > HAVE_LIBBPF_SUPPORT. In bpf_counter.h, move the skeleton utilities
> > > under HAVE_BPF_SKEL.
> > >
> > > Fixes: d6a735ef3277 ("perf bpf_counter: Move common functions to bpf_counter.h")
> > > Reported-by: Mike Leach <mike.leach@linaro.org>
> > > Signed-off-by: Ian Rogers <irogers@google.com>
> >
> > Can this be done in a way that reduces patch size?
> >
> > - Arnaldo

Done in v3. Thanks,

Ian

> >
> > > ---
> > >  tools/perf/builtin-trace.c    |  2 +
> > >  tools/perf/util/bpf_counter.h | 85 ++++++++++++++++++-----------------
> > >  2 files changed, 46 insertions(+), 41 deletions(-)
> > >
> > > diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> > > index 86e06f136f40..d21fe0f32a6d 100644
> > > --- a/tools/perf/builtin-trace.c
> > > +++ b/tools/perf/builtin-trace.c
> > > @@ -16,7 +16,9 @@
> > >
> > >  #include "util/record.h"
> > >  #include <api/fs/tracing_path.h>
> > > +#ifdef HAVE_LIBBPF_SUPPORT
> > >  #include <bpf/bpf.h>
> > > +#endif
> > >  #include "util/bpf_map.h"
> > >  #include "util/rlimit.h"
> > >  #include "builtin.h"
> > > diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
> > > index 4dbf26408b69..9113c8bf5cb0 100644
> > > --- a/tools/perf/util/bpf_counter.h
> > > +++ b/tools/perf/util/bpf_counter.h
> > > @@ -4,9 +4,12 @@
> > >
> > >  #include <linux/list.h>
> > >  #include <sys/resource.h>
> > > +
> > > +#ifdef HAVE_LIBBPF_SUPPORT
> > >  #include <bpf/bpf.h>
> > >  #include <bpf/btf.h>
> > >  #include <bpf/libbpf.h>
> > > +#endif
> > >
> > >  struct evsel;
> > >  struct target;
> > > @@ -42,6 +45,47 @@ int bpf_counter__read(struct evsel *evsel);
> > >  void bpf_counter__destroy(struct evsel *evsel);
> > >  int bpf_counter__install_pe(struct evsel *evsel, int cpu_map_idx, int fd);
> > >
> > > +static inline __u32 bpf_link_get_id(int fd)
> > > +{
> > > +     struct bpf_link_info link_info = { .id = 0, };
> > > +     __u32 link_info_len = sizeof(link_info);
> > > +
> > > +     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > > +     return link_info.id;
> > > +}
> > > +
> > > +static inline __u32 bpf_link_get_prog_id(int fd)
> > > +{
> > > +     struct bpf_link_info link_info = { .id = 0, };
> > > +     __u32 link_info_len = sizeof(link_info);
> > > +
> > > +     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > > +     return link_info.prog_id;
> > > +}
> > > +
> > > +static inline __u32 bpf_map_get_id(int fd)
> > > +{
> > > +     struct bpf_map_info map_info = { .id = 0, };
> > > +     __u32 map_info_len = sizeof(map_info);
> > > +
> > > +     bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> > > +     return map_info.id;
> > > +}
> > > +
> > > +/* trigger the leader program on a cpu */
> > > +static inline int bperf_trigger_reading(int prog_fd, int cpu)
> > > +{
> > > +     DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> > > +                         .ctx_in = NULL,
> > > +                         .ctx_size_in = 0,
> > > +                         .flags = BPF_F_TEST_RUN_ON_CPU,
> > > +                         .cpu = cpu,
> > > +                         .retval = 0,
> > > +             );
> > > +
> > > +     return bpf_prog_test_run_opts(prog_fd, &opts);
> > > +}
> > > +
> > >  #else /* HAVE_BPF_SKEL */
> > >
> > >  #include <linux/err.h>
> > > @@ -87,45 +131,4 @@ static inline void set_max_rlimit(void)
> > >       setrlimit(RLIMIT_MEMLOCK, &rinf);
> > >  }
> > >
> > > -static inline __u32 bpf_link_get_id(int fd)
> > > -{
> > > -     struct bpf_link_info link_info = { .id = 0, };
> > > -     __u32 link_info_len = sizeof(link_info);
> > > -
> > > -     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > > -     return link_info.id;
> > > -}
> > > -
> > > -static inline __u32 bpf_link_get_prog_id(int fd)
> > > -{
> > > -     struct bpf_link_info link_info = { .id = 0, };
> > > -     __u32 link_info_len = sizeof(link_info);
> > > -
> > > -     bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
> > > -     return link_info.prog_id;
> > > -}
> > > -
> > > -static inline __u32 bpf_map_get_id(int fd)
> > > -{
> > > -     struct bpf_map_info map_info = { .id = 0, };
> > > -     __u32 map_info_len = sizeof(map_info);
> > > -
> > > -     bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
> > > -     return map_info.id;
> > > -}
> > > -
> > > -/* trigger the leader program on a cpu */
> > > -static inline int bperf_trigger_reading(int prog_fd, int cpu)
> > > -{
> > > -     DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
> > > -                         .ctx_in = NULL,
> > > -                         .ctx_size_in = 0,
> > > -                         .flags = BPF_F_TEST_RUN_ON_CPU,
> > > -                         .cpu = cpu,
> > > -                         .retval = 0,
> > > -             );
> > > -
> > > -     return bpf_prog_test_run_opts(prog_fd, &opts);
> > > -}
> > > -
> > >  #endif /* __PERF_BPF_COUNTER_H */
> > > --
> > > 2.39.0.314.g84b9a713c41-goog
> >
>
> Tested-by: Mike Leach <mike.leach@linaro.org>
>
> > --
> >
> > - Arnaldo
>
>
> --
> Mike Leach
> Principal Engineer, ARM Ltd.
> Manchester Design Centre. UK
diff mbox series

Patch

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 86e06f136f40..d21fe0f32a6d 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -16,7 +16,9 @@ 
 
 #include "util/record.h"
 #include <api/fs/tracing_path.h>
+#ifdef HAVE_LIBBPF_SUPPORT
 #include <bpf/bpf.h>
+#endif
 #include "util/bpf_map.h"
 #include "util/rlimit.h"
 #include "builtin.h"
diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
index 4dbf26408b69..9113c8bf5cb0 100644
--- a/tools/perf/util/bpf_counter.h
+++ b/tools/perf/util/bpf_counter.h
@@ -4,9 +4,12 @@ 
 
 #include <linux/list.h>
 #include <sys/resource.h>
+
+#ifdef HAVE_LIBBPF_SUPPORT
 #include <bpf/bpf.h>
 #include <bpf/btf.h>
 #include <bpf/libbpf.h>
+#endif
 
 struct evsel;
 struct target;
@@ -42,6 +45,47 @@  int bpf_counter__read(struct evsel *evsel);
 void bpf_counter__destroy(struct evsel *evsel);
 int bpf_counter__install_pe(struct evsel *evsel, int cpu_map_idx, int fd);
 
+static inline __u32 bpf_link_get_id(int fd)
+{
+	struct bpf_link_info link_info = { .id = 0, };
+	__u32 link_info_len = sizeof(link_info);
+
+	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
+	return link_info.id;
+}
+
+static inline __u32 bpf_link_get_prog_id(int fd)
+{
+	struct bpf_link_info link_info = { .id = 0, };
+	__u32 link_info_len = sizeof(link_info);
+
+	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
+	return link_info.prog_id;
+}
+
+static inline __u32 bpf_map_get_id(int fd)
+{
+	struct bpf_map_info map_info = { .id = 0, };
+	__u32 map_info_len = sizeof(map_info);
+
+	bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
+	return map_info.id;
+}
+
+/* trigger the leader program on a cpu */
+static inline int bperf_trigger_reading(int prog_fd, int cpu)
+{
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .ctx_in = NULL,
+			    .ctx_size_in = 0,
+			    .flags = BPF_F_TEST_RUN_ON_CPU,
+			    .cpu = cpu,
+			    .retval = 0,
+		);
+
+	return bpf_prog_test_run_opts(prog_fd, &opts);
+}
+
 #else /* HAVE_BPF_SKEL */
 
 #include <linux/err.h>
@@ -87,45 +131,4 @@  static inline void set_max_rlimit(void)
 	setrlimit(RLIMIT_MEMLOCK, &rinf);
 }
 
-static inline __u32 bpf_link_get_id(int fd)
-{
-	struct bpf_link_info link_info = { .id = 0, };
-	__u32 link_info_len = sizeof(link_info);
-
-	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
-	return link_info.id;
-}
-
-static inline __u32 bpf_link_get_prog_id(int fd)
-{
-	struct bpf_link_info link_info = { .id = 0, };
-	__u32 link_info_len = sizeof(link_info);
-
-	bpf_obj_get_info_by_fd(fd, &link_info, &link_info_len);
-	return link_info.prog_id;
-}
-
-static inline __u32 bpf_map_get_id(int fd)
-{
-	struct bpf_map_info map_info = { .id = 0, };
-	__u32 map_info_len = sizeof(map_info);
-
-	bpf_obj_get_info_by_fd(fd, &map_info, &map_info_len);
-	return map_info.id;
-}
-
-/* trigger the leader program on a cpu */
-static inline int bperf_trigger_reading(int prog_fd, int cpu)
-{
-	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
-			    .ctx_in = NULL,
-			    .ctx_size_in = 0,
-			    .flags = BPF_F_TEST_RUN_ON_CPU,
-			    .cpu = cpu,
-			    .retval = 0,
-		);
-
-	return bpf_prog_test_run_opts(prog_fd, &opts);
-}
-
 #endif /* __PERF_BPF_COUNTER_H */