linux-kernel - [tip:perfcounters/urgent] perf report: Output more symbol related debug data

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Message-ID: <tip-520f2c346af463fa00924b236e092da482b344cc@git.kernel.org>
Date:	Mon, 22 Jun 2009 15:03:33 GMT
From:	tip-bot for Peter Zijlstra <peterz@...radead.org>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, efault@....de,
	peterz@...radead.org, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perfcounters/urgent] perf report: Output more symbol related debug data

Commit-ID:  520f2c346af463fa00924b236e092da482b344cc
Gitweb:     http://git.kernel.org/tip/520f2c346af463fa00924b236e092da482b344cc
Author:     Peter Zijlstra <peterz@...radead.org>
AuthorDate: Mon, 22 Jun 2009 16:52:51 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Mon, 22 Jun 2009 17:02:07 +0200

perf report: Output more symbol related debug data

Print more symbol relocation related info under -vv.

Signed-off-by: Peter Zijlstra <peterz@...radead.org>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 tools/perf/builtin-report.c |    5 +++--
 tools/perf/util/symbol.c    |    4 ++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5eb5566..ec230a0 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -797,7 +797,7 @@ resolve_symbol(struct thread *thread, struct map **mapp,
 {
 	struct dso *dso = dsop ? *dsop : NULL;
 	struct map *map = mapp ? *mapp : NULL;
-	uint64_t ip = *ipp;
+	u64 ip = *ipp;
 
 	if (!thread)
 		return NULL;
@@ -814,7 +814,6 @@ resolve_symbol(struct thread *thread, struct map **mapp,
 			*mapp = map;
 got_map:
 		ip = map->map_ip(map, ip);
-		*ipp  = ip;
 
 		dso = map->dso;
 	} else {
@@ -828,6 +827,8 @@ got_map:
 		dso = kernel_dso;
 	}
 	dprintf(" ...... dso: %s\n", dso ? dso->name : "<not found>");
+	dprintf(" ...... map: %Lx -> %Lx\n", *ipp, ip);
+	*ipp  = ip;
 
 	if (dsop)
 		*dsop = dso;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 01b62fa..9c659ef 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -535,6 +535,10 @@ static int dso__load_sym(struct dso *self, int fd, const char *name,
 		gelf_getshdr(sec, &shdr);
 		obj_start = sym.st_value;
 
+		if (verbose >= 2)
+			printf("adjusting symbol: st_value: %Lx sh_addr: %Lx sh_offset: %Lx\n",
+				(u64)sym.st_value, (u64)shdr.sh_addr, (u64)shdr.sh_offset);
+
 		sym.st_value -= shdr.sh_addr - shdr.sh_offset;
 
 		f = symbol__new(sym.st_value, sym.st_size,
--
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