diff mbox series

[V6,2/4] Force MAPPING_TYPE__IDENTIY for PIE

Message ID 47f46f008dad63a8685345fabc2701d50c7b47c3.1725493961.git.scclevenger@os.amperecomputing.com (mailing list archive)
State New, archived
Headers show
Series arm-cs-trace-disasm.py/perf must accommodate non-zero DSO text offset | expand

Commit Message

Steve Clevenger Sept. 5, 2024, 12:11 a.m. UTC 
Use dso__is_pie() to check whether the DSO file is a Position
Independent Executable (PIE). If PIE, change the MAPPING_TYPE to
MAPPING_TYPE__IDENTITY so a zero map pgoff (text offset) is passed
into the script.

Signed-off-by: Steve Clevenger <scclevenger@os.amperecomputing.com>
Reviewed-by: Leo Yan <leo.yan@arm.com>
---
 tools/perf/util/map.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index e781c8d56a9a..c846faec177b 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -173,8 +173,8 @@  struct map *map__new(struct machine *machine, u64 start, u64 len,
 		assert(!dso__kernel(dso));
 		map__init(result, start, start + len, pgoff, dso, prot, flags);
 
-		if (anon || no_dso) {
-			map->mapping_type = MAPPING_TYPE__IDENTITY;
+		if (anon || no_dso || dso__is_pie(dso)) {
+			map__set_mapping_type(map, MAPPING_TYPE__IDENTITY);
 
 			/*
 			 * Set memory without DSO as loaded. All map__find_*