From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ian Rogers <irogers@google.com>,
James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org
Subject: [PATCH v3 08/10] perf symbol: Do not set binary type from symtab type
Date: Sun, 11 Oct 2026 22:25:59 -0700 [thread overview]
Message-ID: <20261012052601.13920-9-namhyung@kernel.org> (raw)
In-Reply-To: <20261012052601.13920-1-namhyung@kernel.org>
The DSO binary type is to access the binary (e.g. instruction) data
while symtab type is for the symbol table. They may or may not be in
the same file. We should track them separately and correctly.
As special binaries already set their type before loading symbols, leave
the binary type info and only update it when actually opening the DSO.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/dso.c | 3 ++-
tools/perf/util/symbol.c | 13 -------------
2 files changed, 2 insertions(+), 14 deletions(-)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 851b39c63ec861e7..a8e531766f1b5c09 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1485,9 +1485,10 @@ uint16_t dso__e_machine_endian(struct dso *dso, struct machine *machine, uint32_
bool *is_big_endian)
{
uint16_t e_machine = EM_NONE;
+ enum dso_binary_type dbt = dso__find_binary_type(dso);
int fd;
- switch (dso__binary_type(dso)) {
+ switch (dbt) {
case DSO_BINARY_TYPE__KALLSYMS:
case DSO_BINARY_TYPE__GUEST_KALLSYMS:
case DSO_BINARY_TYPE__VMLINUX:
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 4a8c298039447cec..116870595f75c7dd 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1943,19 +1943,6 @@ int dso__load(struct dso *dso, struct map *map)
if (next_slot) {
ss_pos++;
-
- /*
- * The binary type is used to find the file containing
- * the executed instructions, so prefer the types that
- * refer to the actual object over debug-only files such
- * as DSO_BINARY_TYPE__DEBUGLINK.
- */
- if (dso__binary_type(dso) == DSO_BINARY_TYPE__NOT_FOUND ||
- symtab_type == DSO_BINARY_TYPE__BUILD_ID_CACHE ||
- (symtab_type == DSO_BINARY_TYPE__SYSTEM_PATH_DSO &&
- dso__binary_type(dso) != DSO_BINARY_TYPE__BUILD_ID_CACHE))
- dso__set_binary_type(dso, symtab_type);
-
if (syms_ss && runtime_ss)
break;
} else {
--
2.55.0
next prev parent reply other threads:[~2026-10-12 5:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-12 5:25 [PATCH v3 00/10] perf symbol: Properly set DSO binary/symtab types Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 01/10] perf tools: Remove redundant dso data init Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 02/10] perf tools: Try linked debug files for DSO debug info Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 03/10] perf symbol: Update symtab type of vmlinux from build-id cache Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 04/10] perf symbol: Set binary/symtab type for split kallsyms Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 05/10] perf symbol: Get rid of machine_or_dso_e_machine() Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 06/10] perf tools: Factor out dso__find_binary_type() Namhyung Kim
2026-10-12 5:25 ` [PATCH v3 07/10] perf symbol: Set binary type for JIT map DSOs Namhyung Kim
2026-10-12 5:25 ` Namhyung Kim [this message]
2026-10-12 5:26 ` [PATCH v3 09/10] perf annotate: Simplify symbol__disassemble() with dso binary_type Namhyung Kim
2026-10-12 5:26 ` [PATCH v3 10/10] perf test: Fix dso data tests Namhyung Kim
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