From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Andi Kleen <ak@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Namhyung Kim <namhyung@kernel.org>, Leo Yan <leo.yan@linaro.org>,
Kan Liang <kan.liang@linux.intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH V2 08/10] perf dlfilter: Add srcline() to perf_dlfilter_fns
Date: Sun, 27 Jun 2021 16:18:16 +0300 [thread overview]
Message-ID: <20210627131818.810-9-adrian.hunter@intel.com> (raw)
In-Reply-To: <20210627131818.810-1-adrian.hunter@intel.com>
Add a function, for use by dlfilters, to return source code file name and
line number.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/Documentation/perf-dlfilter.txt | 5 +++-
tools/perf/util/dlfilter.c | 28 ++++++++++++++++++++++
tools/perf/util/perf_dlfilter.h | 4 +++-
3 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-dlfilter.txt b/tools/perf/Documentation/perf-dlfilter.txt
index bc4dba0995d8..df118ddcd7f4 100644
--- a/tools/perf/Documentation/perf-dlfilter.txt
+++ b/tools/perf/Documentation/perf-dlfilter.txt
@@ -125,7 +125,8 @@ struct perf_dlfilter_fns {
char **(*args)(void *ctx, int *dlargc);
__s32 (*resolve_address)(void *ctx, __u64 address, struct perf_dlfilter_al *al);
const __u8 *(*insn)(void *ctx, __u32 *length);
- void *(*reserved[123])(void *);
+ const char *(*srcline)(void *ctx, __u32 *line_number);
+ void *(*reserved[122])(void *);
};
----
@@ -140,6 +141,8 @@ before calling. Returns 0 on success, -1 otherwise.
'insn' returns instruction bytes and length.
+'srcline' return source file name and line number.
+
The perf_dlfilter_al structure
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/tools/perf/util/dlfilter.c b/tools/perf/util/dlfilter.c
index 79a899255c01..f4ce1a80bddc 100644
--- a/tools/perf/util/dlfilter.c
+++ b/tools/perf/util/dlfilter.c
@@ -19,6 +19,7 @@
#include "thread.h"
#include "trace-event.h"
#include "symbol.h"
+#include "srcline.h"
#include "dlfilter.h"
#include "perf_dlfilter.h"
@@ -208,12 +209,39 @@ static const __u8 *dlfilter__insn(void *ctx, __u32 *len)
return (__u8 *)d->sample->insn;
}
+static const char *dlfilter__srcline(void *ctx, __u32 *line_no)
+{
+ struct dlfilter *d = (struct dlfilter *)ctx;
+ struct addr_location *al;
+ unsigned int line = 0;
+ char *srcfile = NULL;
+ struct map *map;
+ u64 addr;
+
+ if (!d->ctx_valid || !line_no)
+ return NULL;
+
+ al = get_al(d);
+ if (!al)
+ return NULL;
+
+ map = al->map;
+ addr = al->addr;
+
+ if (map && map->dso)
+ srcfile = get_srcline_split(map->dso, map__rip_2objdump(map, addr), &line);
+
+ *line_no = line;
+ return srcfile;
+}
+
static const struct perf_dlfilter_fns perf_dlfilter_fns = {
.resolve_ip = dlfilter__resolve_ip,
.resolve_addr = dlfilter__resolve_addr,
.args = dlfilter__args,
.resolve_address = dlfilter__resolve_address,
.insn = dlfilter__insn,
+ .srcline = dlfilter__srcline,
};
static char *find_dlfilter(const char *file)
diff --git a/tools/perf/util/perf_dlfilter.h b/tools/perf/util/perf_dlfilter.h
index 763c5af3c5f7..b989918056e2 100644
--- a/tools/perf/util/perf_dlfilter.h
+++ b/tools/perf/util/perf_dlfilter.h
@@ -99,8 +99,10 @@ struct perf_dlfilter_fns {
__s32 (*resolve_address)(void *ctx, __u64 address, struct perf_dlfilter_al *al);
/* Return instruction bytes and length */
const __u8 *(*insn)(void *ctx, __u32 *length);
+ /* Return source file name and line number */
+ const char *(*srcline)(void *ctx, __u32 *line_number);
/* Reserved */
- void *(*reserved[123])(void *);
+ void *(*reserved[122])(void *);
};
/*
--
2.17.1
next prev parent reply other threads:[~2021-06-27 13:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-27 13:18 [PATCH V2 00/10] perf script: Add API for filtering via dynamically loaded shared object Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 01/10] " Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 02/10] perf script: Add dlfilter__filter_event_early() Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 03/10] perf script: Add option to list dlfilters Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 04/10] perf script: Add option to pass arguments to dlfilters Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 05/10] perf build: Install perf_dlfilter.h Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 06/10] perf dlfilter: Add resolve_address() to perf_dlfilter_fns Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 07/10] perf dlfilter: Add insn() " Adrian Hunter
2021-06-27 13:18 ` Adrian Hunter [this message]
2021-06-27 13:18 ` [PATCH V2 09/10] perf dlfilter: Add attr() " Adrian Hunter
2021-06-27 13:18 ` [PATCH V2 10/10] perf dlfilter: Add object_code() " Adrian Hunter
2021-06-27 16:13 ` [PATCH V2 00/10] perf script: Add API for filtering via dynamically loaded shared object Andi Kleen
2021-06-28 7:23 ` Adrian Hunter
2021-06-28 14:57 ` Andi Kleen
2021-06-28 19:30 ` Adrian Hunter
2021-06-29 19:28 ` Namhyung Kim
2021-07-01 17:40 ` Arnaldo Carvalho de Melo
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