diff options
| author | Ian Rogers <irogers@google.com> | 2020-09-25 02:39:03 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-09-28 14:22:39 +0200 |
| commit | aa98d8482c8397d4087248e1f50d50078b34326d (patch) | |
| tree | 3fdbf54462f75684f255b71e26514e9d2fbf460c | |
| parent | perf test: Add expand cgroup event test (diff) | |
| download | linux-aa98d8482c8397d4087248e1f50d50078b34326d.tar.xz linux-aa98d8482c8397d4087248e1f50d50078b34326d.zip | |
perf parse-events: Reduce casts around bp_addr
perf_event_attr bp_addr is a u64. parse-events.y parses it as a u64, but
casts it to a void* and then parse-events.c casts it back to a u64.
Rather than all the casts, change the type of the address to be a u64.
This removes an issue noted in:
https://lore.kernel.org/lkml/20200903184359.GC3495158@kernel.org/
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200925003903.561568-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/parse-events.c | 4 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.h | 2 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.y | 8 |
3 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 667cbca1547a..f82ef1e840b2 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -940,12 +940,12 @@ do { \ } int parse_events_add_breakpoint(struct list_head *list, int *idx, - void *ptr, char *type, u64 len) + u64 addr, char *type, u64 len) { struct perf_event_attr attr; memset(&attr, 0, sizeof(attr)); - attr.bp_addr = (unsigned long) ptr; + attr.bp_addr = addr; if (parse_breakpoint_type(type, &attr)) return -EINVAL; diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 00cde7d2e30c..e80c9b74f2f2 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -190,7 +190,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, struct parse_events_error *error, struct list_head *head_config); int parse_events_add_breakpoint(struct list_head *list, int *idx, - void *ptr, char *type, u64 len); + u64 addr, char *type, u64 len); int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, char *name, struct list_head *head_config, diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 645bf4f1859f..d5b6aff82f21 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -511,7 +511,7 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc list = alloc_list(); ABORT_ON(!list); err = parse_events_add_breakpoint(list, &parse_state->idx, - (void *)(uintptr_t) $2, $6, $4); + $2, $6, $4); free($6); if (err) { free(list); @@ -528,7 +528,7 @@ PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc list = alloc_list(); ABORT_ON(!list); if (parse_events_add_breakpoint(list, &parse_state->idx, - (void *)(uintptr_t) $2, NULL, $4)) { + $2, NULL, $4)) { free(list); YYABORT; } @@ -544,7 +544,7 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc list = alloc_list(); ABORT_ON(!list); err = parse_events_add_breakpoint(list, &parse_state->idx, - (void *)(uintptr_t) $2, $4, 0); + $2, $4, 0); free($4); if (err) { free(list); @@ -561,7 +561,7 @@ PE_PREFIX_MEM PE_VALUE sep_dc list = alloc_list(); ABORT_ON(!list); if (parse_events_add_breakpoint(list, &parse_state->idx, - (void *)(uintptr_t) $2, NULL, 0)) { + $2, NULL, 0)) { free(list); YYABORT; } |