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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Clark Williams <williams@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Wang Nan <wangnan0@huawei.com>
Subject: [PATCH 35/52] perf thread: Ditch __thread__find_symbol()
Date: Wed,  2 May 2018 12:19:25 -0300	[thread overview]
Message-ID: <20180502151942.20542-36-acme@kernel.org> (raw)
In-Reply-To: <20180502151942.20542-1-acme@kernel.org>

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Simulate having all symbols in just one tree by searching the still
existing two trees.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-uss70e8tvzzbzs326330t83q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c |  2 +-
 tools/perf/util/event.c    |  8 ++++----
 tools/perf/util/machine.c  | 10 +---------
 tools/perf/util/thread.h   | 10 ++--------
 4 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index afec6f9ffd89..c7effcfc40ed 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2036,7 +2036,7 @@ static int trace__pgfault(struct trace *trace,
 
 	fprintf(trace->output, "] => ");
 
-	__thread__find_symbol(thread, sample->cpumode, MAP__VARIABLE, sample->addr, &al);
+	thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
 
 	if (!al.map) {
 		thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 241d3c827fae..7b67771cd478 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1565,12 +1565,12 @@ struct map *__thread__find_map(struct thread *thread, u8 cpumode, enum map_type
 	return al->map;
 }
 
-struct symbol *__thread__find_symbol(struct thread *thread, u8 cpumode,
-				     enum map_type type, u64 addr,
-				     struct addr_location *al)
+struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
+				   u64 addr, struct addr_location *al)
 {
 	al->sym = NULL;
-	if (__thread__find_map(thread, cpumode, type, addr, al))
+	if (__thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al) ||
+	    __thread__find_map(thread, cpumode, MAP__VARIABLE, addr, al))
 		al->sym = map__find_symbol(al->map, al->addr);
 	return al->sym;
 }
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index a00e82b83e0a..3422ef67ec21 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1677,15 +1677,7 @@ static void ip__resolve_data(struct thread *thread,
 
 	memset(&al, 0, sizeof(al));
 
-	__thread__find_symbol(thread, m, MAP__VARIABLE, addr, &al);
-	if (al.map == NULL) {
-		/*
-		 * some shared data regions have execute bit set which puts
-		 * their mapping in the MAP__FUNCTION type array.
-		 * Check there as a fallback option before dropping the sample.
-		 */
-		thread__find_symbol(thread, m, addr, &al);
-	}
+	thread__find_symbol(thread, m, addr, &al);
 
 	ams->addr = addr;
 	ams->al_addr = al.addr;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index d6209c73f32d..54aa24d6151e 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -101,14 +101,8 @@ static inline struct map *thread__find_map(struct thread *thread, u8 cpumode,
 	return __thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al);
 }
 
-struct symbol *__thread__find_symbol(struct thread *thread, u8 cpumode, enum map_type type,
-				     u64 addr, struct addr_location *al);
-
-static inline struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
-						 u64 addr, struct addr_location *al)
-{
-	return __thread__find_symbol(thread, cpumode, MAP__FUNCTION, addr, al);
-}
+struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
+				   u64 addr, struct addr_location *al);
 
 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
 					struct addr_location *al);
-- 
2.14.3

  parent reply	other threads:[~2018-05-02 15:21 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-02 15:18 [GIT PULL 00/52] perf/core improvements and fixes Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 01/52] perf buildid-cache: Support --list option Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 02/52] perf buildid-cache: Support --purge-all option Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 03/52] perf check-headers.sh: Simplify arguments passing Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 04/52] perf check-headers.sh: Add support to check 2 independent files Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 05/52] perf stat: Display time in precision based on std deviation Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 06/52] perf stat: Add --table option to display time of each run Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 07/52] perf stat: Display length strings of each run for --table option Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 08/52] perf top: Use __map__is_kernel() Arnaldo Carvalho de Melo
2018-05-02 15:18 ` [PATCH 09/52] perf symbols: Use __map__is_kernel() instead of ad-hoc equivalent code Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 10/52] perf dso: Add dso__has_symbols() method Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 11/52] perf map: Introduce map__has_symbols() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 12/52] perf thread: Introduce thread__find_map() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 13/52] perf tests: Let 'perf test list' display subtests Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 14/52] perf thread: Introduce thread__find_symbol() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 15/52] perf script: Use thread__find_symbol() instead of ad-hoc equivalent Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 16/52] perf thread: Make thread__find_map() return the map Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 17/52] perf thread: Make thread__find_symbol() return the symbol searched Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 18/52] perf map: Shorten map_groups__find_by_name() signature Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 19/52] perf Documentation: Support for asciidoctor Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 20/52] perf machine: Introduce machine__kernel_maps() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 21/52] perf machine: Shorten machine__load_kallsyms() signature Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 22/52] perf machine: Remove needless map_type from machine__load_vmlinux_path() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 23/52] perf tests vmlinux-kallsyms: Use machine__find_kernel_function(_by_name) Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 24/52] perf tests vmlinux-kallsyms: Use map__for_each_symbol() instead of open coded equivalent Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 25/52] perf map: Shorten map_groups__find() signature Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 26/52] perf ui stdio: Use map_groups__fprintf() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 27/52] perf symbols: Shorten dso__(first|last)_symbol() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 28/52] tools lib symbols: Introduce kallsyms__is_function() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 29/52] perf tools: Use kallsyms__is_function() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 30/52] perf symbols: Unexport symbol_type__is_a() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 31/52] perf map: Remove enum_type arg to map_groups__first() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 32/52] perf symbols: Remove map_type arg from dso__find_symbol() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 33/52] perf thread: Remove addr_type arg from thread__find_cpumode_addr_location() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 34/52] perf machine: Use machine__find_kernel_function() instead of open coded version Arnaldo Carvalho de Melo
2018-05-02 15:19 ` Arnaldo Carvalho de Melo [this message]
2018-05-02 15:19 ` [PATCH 36/52] perf thread: Make thread__find_map() search all maps Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 37/52] perf map: Remove map_type arg from map_groups__find() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 38/52] perf symbols: Store the ELF symbol type in the symbol struct Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 39/52] perf machine: Set PROT_EXEC for executable PERF_RECORD_MMAP records Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 40/52] perf sort: Use mmap->prot on "dcacheline" formatting Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 41/52] perf symbols: No need to special case MAP__FUNCTION in fixup Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 42/52] perf symbols: Use symbol type instead of map->type Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 43/52] perf map: Use map->prot in place of type==MAP__FUNCTION Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 44/52] perf symbols: " Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 45/52] perf symbols: Unify symbol maps Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 46/52] perf symbols: Remove needless goto Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 47/52] perf symbols: Split kernel symbol processing from dso__load_sym() Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 48/52] perf symbols: Remove unused dso__load_all_kallsyms() 'map' parameter Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 49/52] perf symbols: kallsyms__delta() needs the kmap, not the map Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 50/52] perf symbols: Move split_kallsyms to struct map_groups Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 51/52] perf tools: Fix spelling mistake: "builid" -> "buildid" Arnaldo Carvalho de Melo
2018-05-02 15:19 ` [PATCH 52/52] perf machine: Ditch find_kernel_function variants Arnaldo Carvalho de Melo

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