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Groups > linux.kernel > #1399142

[PATCH perf/core v7 03/21] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE

From Masami Hiramatsu <mhiramat@kernel.org>
Newsgroups linux.kernel
Subject [PATCH perf/core v7 03/21] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
Date 2016-05-11 16:10 +0200
Message-ID <rxCZP-1jh-3@gated-at.bofh.it> (permalink)
References <rxCQa-UH-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Instead of using raw string, use DSO__NAME_KALLSYMS and DSO__NAME_KCORE
macros for kallsyms and kcore.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 tools/perf/builtin-buildid-cache.c |    8 ++++----
 tools/perf/util/annotate.c         |    2 +-
 tools/perf/util/build-id.c         |    2 +-
 tools/perf/util/machine.c          |    2 +-
 tools/perf/util/symbol.c           |   10 +++++-----
 tools/perf/util/symbol.h           |    3 +++
 6 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 632efc6..d75bded 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -119,8 +119,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
-		  buildid_dir, sbuildid);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid);
 
 	if (!force &&
 	    !build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
@@ -131,8 +131,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
-		  buildid_dir, sbuildid, dir);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid, dir);
 
 	if (mkdir_p(to_dir, 0755))
 		return -1;
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index d4b3d03..1168442 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1122,7 +1122,7 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 	} else if (dso__is_kcore(dso)) {
 		goto fallback;
 	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
-		   strstr(command, "[kernel.kallsyms]") ||
+		   strstr(command, DSO__NAME_KALLSYMS) ||
 		   access(symfs_filename, R_OK)) {
 		free(filename);
 fallback:
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 234d8a1..53df9aa 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -354,7 +354,7 @@ static char *build_id_cache__dirname_from_path(const char *name,
 	} else if (is_vdso)
 		realname = DSO__NAME_VDSO;
 	else
-		realname = "[kernel.kallsyms]";
+		realname = DSO__NAME_KALLSYMS;
 
 	if (asprintf(&filename, "%s%s%s", buildid_dir, slash ? "/" : "",
 		     realname) < 0)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 639a290..18dd96b 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -709,7 +709,7 @@ static struct dso *machine__get_kernel(struct machine *machine)
 	if (machine__is_host(machine)) {
 		vmlinux_name = symbol_conf.vmlinux_name;
 		if (!vmlinux_name)
-			vmlinux_name = "[kernel.kallsyms]";
+			vmlinux_name = DSO__NAME_KALLSYMS;
 
 		kernel = machine__findnew_kernel(machine, vmlinux_name,
 						 "[kernel]", DSO_TYPE_KERNEL);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 2946295..49caa91 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1648,8 +1648,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 
 	build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kcore]/%s", buildid_dir,
-		  sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s", buildid_dir,
+		  DSO__NAME_KCORE, sbuild_id);
 
 	/* Use /proc/kallsyms if possible */
 	if (is_host) {
@@ -1685,8 +1685,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 	if (!find_matching_kcore(map, path, sizeof(path)))
 		return strdup(path);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kallsyms]/%s",
-		  buildid_dir, sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KALLSYMS, sbuild_id);
 
 	if (access(path, F_OK)) {
 		pr_err("No kallsyms or vmlinux with build-id %s was found\n",
@@ -1755,7 +1755,7 @@ do_kallsyms:
 
 	if (err > 0 && !dso__is_kcore(dso)) {
 		dso->binary_type = DSO_BINARY_TYPE__KALLSYMS;
-		dso__set_long_name(dso, "[kernel.kallsyms]", false);
+		dso__set_long_name(dso, DSO__NAME_KALLSYMS, false);
 		map__fixup_start(map);
 		map__fixup_end(map);
 	}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 07211c2..78e3bbf 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -44,6 +44,9 @@ Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
 #endif
 
+#define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
+#define DSO__NAME_KCORE		"[kernel.kcore]"
+
 /** struct symbol - symtab entry
  *
  * @ignore - resolvable but tools ignore it (e.g. idle routines)

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[PATCH perf/core v7 00/21] perf-probe --cache and SDT support Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 18/21] perf-list: Skip SDTs placed in invalid binaries Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 07/21] perf symbol: Cleanup the code flow of dso__find_kallsyms Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
    Re: [PATCH perf/core v7 07/21] perf symbol: Cleanup the code flow of  dso__find_kallsyms Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-11 18:00 +0200
      Re: [PATCH perf/core v7 07/21] perf symbol: Cleanup the code flow  of dso__find_kallsyms Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-12 03:50 +0200
  [PATCH perf/core v7 17/21] perf-list: Show SDT and pre-cached events Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 16/21] perf probe: Accept %sdt and %cached event name Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 10/21] perf probe: Use cache entry if possible Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 15/21] perf buildid-cache: Scan and import user SDT events to probe cache Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 01/21] tools/perf: Fix lsdir to set errno correctly Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
    [tip:perf/core] perf tools: Fix lsdir to set errno correctly tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2016-05-12 12:30 +0200
  [PATCH perf/core v7 20/21] perf probe: Support @BUILDID or @FILE suffix for SDT events Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 19/21] perf probe: Allow wildcard for cached events Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 02/21] perf buildid: Fix to set correct dso name for kallsyms Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
    Re: [PATCH perf/core v7 02/21] perf buildid: Fix to set correct dso  name for kallsyms Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-11 17:50 +0200
      Re: [PATCH perf/core v7 02/21] perf buildid: Fix to set correct dso  name for kallsyms Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-12 04:10 +0200
        Re: [PATCH perf/core v7 02/21] perf buildid: Fix to set correct dso  name for kallsyms Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-12 11:00 +0200
  [PATCH perf/core v7 09/21] perf probe: Add --cache option to cache the probe definitions Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:00 +0200
  [PATCH perf/core v7 03/21] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-11 16:10 +0200
    Re: [PATCH perf/core v7 03/21] perf buildid: Introduce  DSO__NAME_KALLSYMS and DSO__NAME_KCORE Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-11 17:50 +0200

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