[tip:perf/core] perf symbols: Move fprintf routines to separate object file

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  bfbba189b681c86b9ae380358e5f50ce1e33d240
Gitweb:     http://git.kernel.org/tip/bfbba189b681c86b9ae380358e5f50ce1e33d240
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 14 Apr 2016 15:54:36 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 14 Apr 2016 19:46:53 -0300

perf symbols: Move fprintf routines to separate object file

To disentangle symbol printing from all the code related to symbol
tables, resolution of addresses to symbols, etc.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-eik9g3hbtdc7ddv57f1d4v3p@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/Build              |  1 +
 tools/perf/util/python-ext-sources |  1 +
 tools/perf/util/symbol.c           | 71 --------------------------------------
 tools/perf/util/symbol.h           |  5 +++
 tools/perf/util/symbol_fprintf.c   | 71 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 78 insertions(+), 71 deletions(-)

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index ea4ac03..6102133 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -29,6 +29,7 @@ libperf-y += usage.o
 libperf-y += wrapper.o
 libperf-y += dso.o
 libperf-y += symbol.o
+libperf-y += symbol_fprintf.o
 libperf-y += color.o
 libperf-y += header.o
 libperf-y += callchain.o
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 8162ba0..36c6862 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -23,3 +23,4 @@ util/strlist.c
 util/trace-event.c
 ../lib/rbtree.c
 util/string.c
+util/symbol_fprintf.c
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index bb162ee..a36823c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -255,57 +255,6 @@ void symbol__delete(struct symbol *sym)
 	free(((void *)sym) - symbol_conf.priv_size);
 }
 
-size_t symbol__fprintf(struct symbol *sym, FILE *fp)
-{
-	return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %c %s\n",
-		       sym->start, sym->end,
-		       sym->binding == STB_GLOBAL ? 'g' :
-		       sym->binding == STB_LOCAL  ? 'l' : 'w',
-		       sym->name);
-}
-
-size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
-				      const struct addr_location *al,
-				      bool unknown_as_addr, FILE *fp)
-{
-	unsigned long offset;
-	size_t length;
-
-	if (sym && sym->name) {
-		length = fprintf(fp, "%s", sym->name);
-		if (al) {
-			if (al->addr < sym->end)
-				offset = al->addr - sym->start;
-			else
-				offset = al->addr - al->map->start - sym->start;
-			length += fprintf(fp, "+0x%lx", offset);
-		}
-		return length;
-	} else if (al && unknown_as_addr)
-		return fprintf(fp, "[%#" PRIx64 "]", al->addr);
-	else
-		return fprintf(fp, "[unknown]");
-}
-
-size_t symbol__fprintf_symname_offs(const struct symbol *sym,
-				    const struct addr_location *al,
-				    FILE *fp)
-{
-	return __symbol__fprintf_symname_offs(sym, al, false, fp);
-}
-
-size_t __symbol__fprintf_symname(const struct symbol *sym,
-				 const struct addr_location *al,
-				 bool unknown_as_addr, FILE *fp)
-{
-	return __symbol__fprintf_symname_offs(sym, al, unknown_as_addr, fp);
-}
-
-size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp)
-{
-	return __symbol__fprintf_symname_offs(sym, NULL, false, fp);
-}
-
 void symbols__delete(struct rb_root *symbols)
 {
 	struct symbol *pos;
@@ -381,11 +330,6 @@ static struct symbol *symbols__next(struct symbol *sym)
 	return NULL;
 }
 
-struct symbol_name_rb_node {
-	struct rb_node	rb_node;
-	struct symbol	sym;
-};
-
 static void symbols__insert_by_name(struct rb_root *symbols, struct symbol *sym)
 {
 	struct rb_node **p = &symbols->rb_node;
@@ -514,21 +458,6 @@ void dso__sort_by_name(struct dso *dso, enum map_type type)
 				     &dso->symbols[type]);
 }
 
-size_t dso__fprintf_symbols_by_name(struct dso *dso,
-				    enum map_type type, FILE *fp)
-{
-	size_t ret = 0;
-	struct rb_node *nd;
-	struct symbol_name_rb_node *pos;
-
-	for (nd = rb_first(&dso->symbol_names[type]); nd; nd = rb_next(nd)) {
-		pos = rb_entry(nd, struct symbol_name_rb_node, rb_node);
-		fprintf(fp, "%s\n", pos->sym.name);
-	}
-
-	return ret;
-}
-
 int modules__parse(const char *filename, void *arg,
 		   int (*process_module)(void *arg, const char *name,
 					 u64 start))
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index e256256..1da7b10 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -140,6 +140,11 @@ struct symbol_conf {
 
 extern struct symbol_conf symbol_conf;
 
+struct symbol_name_rb_node {
+	struct rb_node	rb_node;
+	struct symbol	sym;
+};
+
 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
 {
 	return path__join(bf, size, symbol_conf.symfs, path);
diff --git a/tools/perf/util/symbol_fprintf.c b/tools/perf/util/symbol_fprintf.c
new file mode 100644
index 0000000..a680bda
--- /dev/null
+++ b/tools/perf/util/symbol_fprintf.c
@@ -0,0 +1,71 @@
+#include <elf.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+#include "symbol.h"
+
+size_t symbol__fprintf(struct symbol *sym, FILE *fp)
+{
+	return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %c %s\n",
+		       sym->start, sym->end,
+		       sym->binding == STB_GLOBAL ? 'g' :
+		       sym->binding == STB_LOCAL  ? 'l' : 'w',
+		       sym->name);
+}
+
+size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
+				      const struct addr_location *al,
+				      bool unknown_as_addr, FILE *fp)
+{
+	unsigned long offset;
+	size_t length;
+
+	if (sym && sym->name) {
+		length = fprintf(fp, "%s", sym->name);
+		if (al) {
+			if (al->addr < sym->end)
+				offset = al->addr - sym->start;
+			else
+				offset = al->addr - al->map->start - sym->start;
+			length += fprintf(fp, "+0x%lx", offset);
+		}
+		return length;
+	} else if (al && unknown_as_addr)
+		return fprintf(fp, "[%#" PRIx64 "]", al->addr);
+	else
+		return fprintf(fp, "[unknown]");
+}
+
+size_t symbol__fprintf_symname_offs(const struct symbol *sym,
+				    const struct addr_location *al,
+				    FILE *fp)
+{
+	return __symbol__fprintf_symname_offs(sym, al, false, fp);
+}
+
+size_t __symbol__fprintf_symname(const struct symbol *sym,
+				 const struct addr_location *al,
+				 bool unknown_as_addr, FILE *fp)
+{
+	return __symbol__fprintf_symname_offs(sym, al, unknown_as_addr, fp);
+}
+
+size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp)
+{
+	return __symbol__fprintf_symname_offs(sym, NULL, false, fp);
+}
+
+size_t dso__fprintf_symbols_by_name(struct dso *dso,
+				    enum map_type type, FILE *fp)
+{
+	size_t ret = 0;
+	struct rb_node *nd;
+	struct symbol_name_rb_node *pos;
+
+	for (nd = rb_first(&dso->symbol_names[type]); nd; nd = rb_next(nd)) {
+		pos = rb_entry(nd, struct symbol_name_rb_node, rb_node);
+		fprintf(fp, "%s\n", pos->sym.name);
+	}
+
+	return ret;
+}