[PATCH] perf hashmap: Tidy hashmap dependency

[PATCH] perf hashmap: Tidy hashmap dependency

[Ian Rogers]

When libbpf is present the build uses definitions in libbpf hashmap.c,
however, libbpf's hashmap.h wasn't being used. Switch to using the
correct hashmap.h dependent on the define HAVE_LIBBPF_SUPPORT. This
was the original intent in:
https://lore.kernel.org/lkml/20200515221732.44078-8-irogers@google.com/

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/bpf-loader.c |  6 +++++-
 tools/perf/util/evsel.c      |  6 +++++-
 tools/perf/util/expr.h       | 11 ++++-------
 tools/perf/util/stat.c       |  6 +++++-
 4 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index e2052f4fed33..d657594894cf 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -27,7 +27,11 @@
 #include "util.h"
 #include "llvm-utils.h"
 #include "c++/clang-c.h"
-#include "hashmap.h"
+#ifdef HAVE_LIBBPF_SUPPORT
+#include <bpf/hashmap.h>
+#else
+#include "util/hashmap.h"
+#endif
 #include "asm/bug.h"
 
 #include <internal/xyarray.h>
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 4852089e1d79..14846b7edb17 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -46,7 +46,11 @@
 #include "string2.h"
 #include "memswap.h"
 #include "util.h"
-#include "hashmap.h"
+#ifdef HAVE_LIBBPF_SUPPORT
+#include <bpf/hashmap.h>
+#else
+#include "util/hashmap.h"
+#endif
 #include "pmu-hybrid.h"
 #include "off_cpu.h"
 #include "../perf-sys.h"
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index bd2116983bbb..0403a92d9dcc 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -2,14 +2,11 @@
 #ifndef PARSE_CTX_H
 #define PARSE_CTX_H 1
 
-// There are fixes that need to land upstream before we can use libbpf's headers,
-// for now use our copy unconditionally, since the data structures at this point
-// are exactly the same, no problem.
-//#ifdef HAVE_LIBBPF_SUPPORT
-//#include <bpf/hashmap.h>
-//#else
+#ifdef HAVE_LIBBPF_SUPPORT
+#include <bpf/hashmap.h>
+#else
 #include "util/hashmap.h"
-//#endif
+#endif
 
 struct metric_ref;
 
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 0882b4754fcf..ce5e9e372fc4 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -14,7 +14,11 @@
 #include "evlist.h"
 #include "evsel.h"
 #include "thread_map.h"
-#include "hashmap.h"
+#ifdef HAVE_LIBBPF_SUPPORT
+#include <bpf/hashmap.h>
+#else
+#include "util/hashmap.h"
+#endif
 #include <linux/zalloc.h>
 
 void update_stats(struct stats *stats, u64 val)
-- 
2.37.2.609.g9ff673ca1a-goog

Re: [PATCH] perf hashmap: Tidy hashmap dependency

[Arnaldo Carvalho de Melo]

Em Tue, Aug 23, 2022 at 10:06:04PM -0700, Ian Rogers escreveu:
> When libbpf is present the build uses definitions in libbpf hashmap.c,
> however, libbpf's hashmap.h wasn't being used. Switch to using the
> correct hashmap.h dependent on the define HAVE_LIBBPF_SUPPORT. This
> was the original intent in:
> https://lore.kernel.org/lkml/20200515221732.44078-8-irogers@google.com/

Thanks, applied.

- Arnaldo

 
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
>  tools/perf/util/bpf-loader.c |  6 +++++-
>  tools/perf/util/evsel.c      |  6 +++++-
>  tools/perf/util/expr.h       | 11 ++++-------
>  tools/perf/util/stat.c       |  6 +++++-
>  4 files changed, 19 insertions(+), 10 deletions(-)
> 
> diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
> index e2052f4fed33..d657594894cf 100644
> --- a/tools/perf/util/bpf-loader.c
> +++ b/tools/perf/util/bpf-loader.c
> @@ -27,7 +27,11 @@
>  #include "util.h"
>  #include "llvm-utils.h"
>  #include "c++/clang-c.h"
> -#include "hashmap.h"
> +#ifdef HAVE_LIBBPF_SUPPORT
> +#include <bpf/hashmap.h>
> +#else
> +#include "util/hashmap.h"
> +#endif
>  #include "asm/bug.h"
>  
>  #include <internal/xyarray.h>
> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index 4852089e1d79..14846b7edb17 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -46,7 +46,11 @@
>  #include "string2.h"
>  #include "memswap.h"
>  #include "util.h"
> -#include "hashmap.h"
> +#ifdef HAVE_LIBBPF_SUPPORT
> +#include <bpf/hashmap.h>
> +#else
> +#include "util/hashmap.h"
> +#endif
>  #include "pmu-hybrid.h"
>  #include "off_cpu.h"
>  #include "../perf-sys.h"
> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> index bd2116983bbb..0403a92d9dcc 100644
> --- a/tools/perf/util/expr.h
> +++ b/tools/perf/util/expr.h
> @@ -2,14 +2,11 @@
>  #ifndef PARSE_CTX_H
>  #define PARSE_CTX_H 1
>  
> -// There are fixes that need to land upstream before we can use libbpf's headers,
> -// for now use our copy unconditionally, since the data structures at this point
> -// are exactly the same, no problem.
> -//#ifdef HAVE_LIBBPF_SUPPORT
> -//#include <bpf/hashmap.h>
> -//#else
> +#ifdef HAVE_LIBBPF_SUPPORT
> +#include <bpf/hashmap.h>
> +#else
>  #include "util/hashmap.h"
> -//#endif
> +#endif
>  
>  struct metric_ref;
>  
> diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
> index 0882b4754fcf..ce5e9e372fc4 100644
> --- a/tools/perf/util/stat.c
> +++ b/tools/perf/util/stat.c
> @@ -14,7 +14,11 @@
>  #include "evlist.h"
>  #include "evsel.h"
>  #include "thread_map.h"
> -#include "hashmap.h"
> +#ifdef HAVE_LIBBPF_SUPPORT
> +#include <bpf/hashmap.h>
> +#else
> +#include "util/hashmap.h"
> +#endif
>  #include <linux/zalloc.h>
>  
>  void update_stats(struct stats *stats, u64 val)
> -- 
> 2.37.2.609.g9ff673ca1a-goog

-- 

- Arnaldo