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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-08-11 13:10:31 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-08-11 15:33:15 +0300 |
| commit | 988db17932a78d201e826af3df7e89494ee0c037 (patch) | |
| tree | 5c9e7351268dd52c06eae49dc29b06d1f28a0139 /tools/perf/Documentation | |
| parent | c4ad8fabd03f76ed3a2a4c8aef6baf6cd4f24542 (diff) | |
| download | linux-988db17932a78d201e826af3df7e89494ee0c037.tar.xz | |
perf script: Fix documented const'ness of perf_dlfilter_fns
perf_dlfilter_fns must not be const, because it is not.
Declaring it const can result in it being mapped read-only, causing a
segfaullt when it is written. Update documentation accordingly.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: 8defa7147d5572 ("perf script Add API for filtering via dynamically loaded shared object")
Link: https //lore.kernel.org/r/20210811101036.17986-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-dlfilter.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-dlfilter.txt b/tools/perf/Documentation/perf-dlfilter.txt index 02842cb4cf90..ece07509d1f7 100644 --- a/tools/perf/Documentation/perf-dlfilter.txt +++ b/tools/perf/Documentation/perf-dlfilter.txt @@ -32,7 +32,7 @@ The API for filtering consists of the following: ---- #include <perf/perf_dlfilter.h> -const struct perf_dlfilter_fns perf_dlfilter_fns; +struct perf_dlfilter_fns perf_dlfilter_fns; int start(void **data, void *ctx); int stop(void *data, void *ctx); @@ -214,7 +214,7 @@ Filter out everything except branches from "foo" to "bar": #include <perf/perf_dlfilter.h> #include <string.h> -const struct perf_dlfilter_fns perf_dlfilter_fns; +struct perf_dlfilter_fns perf_dlfilter_fns; int filter_event(void *data, const struct perf_dlfilter_sample *sample, void *ctx) { |