[PATCH v4 02/11] perf dso: kernel-doc for enum dso_binary_type

Ian Rogers
2025-03-04T05:04:25Z

There are many and non-obvious meanings to the dso_binary_type enum
values. Add kernel-doc to speed interpretting their meanings.

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/dso.h | 53 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)

diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index dfd763a0bd9d..f3ca2a5e7670 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -20,30 +20,83 @@ struct perf_env;
#define DSO__NAME_KALLSYMS "[kernel.kallsyms]"
#define DSO__NAME_KCORE "[kernel.kcore]"

+/**
+ * enum dso_binary_type - The kind of DSO generally associated with a memory
+ * region (struct map).
+ */
enum dso_binary_type {
+ /** @DSO_BINARY_TYPE__KALLSYMS: Symbols from /proc/kallsyms file. */
DSO_BINARY_TYPE__KALLSYMS = 0,
+ /** @DSO_BINARY_TYPE__GUEST_KALLSYMS: Guest /proc/kallsyms file. */
DSO_BINARY_TYPE__GUEST_KALLSYMS,
+ /** @DSO_BINARY_TYPE__VMLINUX: Path to guest kernel /boot/vmlinux file. */
DSO_BINARY_TYPE__VMLINUX,
+ /** @DSO_BINARY_TYPE__GUEST_VMLINUX: Path to kernel /boot/vmlinux file. */
DSO_BINARY_TYPE__GUEST_VMLINUX,
+ /** @DSO_BINARY_TYPE__JAVA_JIT: Symbols from /tmp/perf.map file. */
DSO_BINARY_TYPE__JAVA_JIT,
+ /**
+ * @DSO_BINARY_TYPE__DEBUGLINK: Debug file readable from the file path
+ * in the .gnu_debuglink ELF section of the dso.
+ */
DSO_BINARY_TYPE__DEBUGLINK,
+ /**
+ * @DSO_BINARY_TYPE__BUILD_ID_CACHE: File named after buildid located in
+ * the buildid cache with an elf filename.
+ */
DSO_BINARY_TYPE__BUILD_ID_CACHE,
+ /**
+ * @DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO: File named after buildid
+ * located in the buildid cache with a debug filename.
+ */
DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
+ /**
+ * @DSO_BINARY_TYPE__FEDORA_DEBUGINFO: Debug file in /usr/lib/debug
+ * with .debug suffix.
+ */
DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
+ /** @DSO_BINARY_TYPE__UBUNTU_DEBUGINFO: Debug file in /usr/lib/debug. */
DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
+ /**
+ * @DSO_BINARY_TYPE__MIXEDUP_UBUNTU_DEBUGINFO: dso__long_name debuginfo
+ * file in /usr/lib/debug/lib rather than the expected
+ * /usr/lib/debug/usr/lib.
+ */
DSO_BINARY_TYPE__MIXEDUP_UBUNTU_DEBUGINFO,
+ /**
+ * @DSO_BINARY_TYPE__BUILDID_DEBUGINFO: File named after buildid located
+ * in /usr/lib/debug/.build-id/.
+ */
DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
+ /** @DSO_BINARY_TYPE__SYSTEM_PATH_DSO: A regular executable/shared-object file. */
DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
+ /** @DSO_BINARY_TYPE__GUEST_KMODULE: Guest kernel module .ko file. */
DSO_BINARY_TYPE__GUEST_KMODULE,
+ /** @DSO_BINARY_TYPE__GUEST_KMODULE_COMP: Guest kernel module .ko.gz file. */
DSO_BINARY_TYPE__GUEST_KMODULE_COMP,
+ /** @DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE: Kernel module .ko file. */
DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
+ /** @DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP: Kernel module .ko.gz file. */
DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP,
+ /** @DSO_BINARY_TYPE__KCORE: /proc/kcore file. */
DSO_BINARY_TYPE__KCORE,
+ /** @DSO_BINARY_TYPE__GUEST_KCORE: Guest /proc/kcore file. */
DSO_BINARY_TYPE__GUEST_KCORE,
+ /**
+ * @DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO: Openembedded/Yocto -dbg
+ * package debug info.
+ */
DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
+ /** @DSO_BINARY_TYPE__BPF_PROG_INFO: jitted BPF code. */
DSO_BINARY_TYPE__BPF_PROG_INFO,
+ /** @DSO_BINARY_TYPE__BPF_IMAGE: jitted BPF trampoline or dispatcher code. */
DSO_BINARY_TYPE__BPF_IMAGE,
+ /**
+ * @DSO_BINARY_TYPE__OOL: out of line code such as kprobe-replaced
+ * instructions or optimized kprobes or ftrace trampolines.
+ */
DSO_BINARY_TYPE__OOL,
+ /** @DSO_BINARY_TYPE__NOT_FOUND: Unknown DSO kind. */
DSO_BINARY_TYPE__NOT_FOUND,
};