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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /tools/perf/builtin-check.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'tools/perf/builtin-check.c')
-rw-r--r--tools/perf/builtin-check.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/tools/perf/builtin-check.c b/tools/perf/builtin-check.c
new file mode 100644
index 000000000..60437650c
--- /dev/null
+++ b/tools/perf/builtin-check.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "builtin.h"
+#include "color.h"
+#include "util/bpf-utils.h"
+#include "util/debug.h"
+#include "util/header.h"
+#include <tools/config.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <subcmd/parse-options.h>
+
+static const char * const check_subcommands[] = { "feature", NULL };
+static struct option check_options[] = {
+ OPT_BOOLEAN('q', "quiet", &quiet, "do not show any warnings or messages"),
+ OPT_END()
+};
+static struct option check_feature_options[] = { OPT_PARENT(check_options) };
+
+static const char *check_usage[] = { NULL, NULL };
+static const char *check_feature_usage[] = {
+ "perf check feature <feature_list>",
+ NULL
+};
+
+#define FEATURE_STATUS(name_, macro_) { \
+ .name = name_, \
+ .macro = #macro_, \
+ .is_builtin = IS_BUILTIN(macro_) }
+
+#define FEATURE_STATUS_TIP(name_, macro_, tip_) { \
+ .name = name_, \
+ .macro = #macro_, \
+ .tip = tip_, \
+ .is_builtin = IS_BUILTIN(macro_) }
+
+struct feature_status supported_features[] = {
+ FEATURE_STATUS("aio", HAVE_AIO_SUPPORT),
+ FEATURE_STATUS("bpf", HAVE_LIBBPF_SUPPORT),
+ FEATURE_STATUS("bpf_skeletons", HAVE_BPF_SKEL),
+ FEATURE_STATUS("debuginfod", HAVE_DEBUGINFOD_SUPPORT),
+ FEATURE_STATUS("dwarf", HAVE_LIBDW_SUPPORT),
+ FEATURE_STATUS("dwarf_getlocations", HAVE_LIBDW_SUPPORT),
+ FEATURE_STATUS("dwarf-unwind", HAVE_DWARF_UNWIND_SUPPORT),
+ FEATURE_STATUS_TIP("libbfd", HAVE_LIBBFD_SUPPORT, "Deprecated, license incompatibility, use BUILD_NONDISTRO=1 and install binutils-dev[el]"),
+ FEATURE_STATUS("babeltrace2-ctf-writer", HAVE_BABELTRACE2_CTF_WRITER_SUPPORT),
+ FEATURE_STATUS("libbpf-strings", HAVE_LIBBPF_STRINGS_SUPPORT),
+ FEATURE_STATUS("libcapstone", HAVE_LIBCAPSTONE_SUPPORT),
+ FEATURE_STATUS("libdw-dwarf-unwind", HAVE_LIBDW_SUPPORT),
+ FEATURE_STATUS("libelf", HAVE_LIBELF_SUPPORT),
+ FEATURE_STATUS("libLLVM", HAVE_LIBLLVM_SUPPORT),
+ FEATURE_STATUS("libnuma", HAVE_LIBNUMA_SUPPORT),
+ FEATURE_STATUS("libopencsd", HAVE_CSTRACE_SUPPORT),
+ FEATURE_STATUS_TIP("libperl", HAVE_LIBPERL_SUPPORT, "Deprecated, use LIBPERL=1 and install perl-ExtUtils-Embed/libperl-dev to build with it"),
+ FEATURE_STATUS("libpfm4", HAVE_LIBPFM),
+ FEATURE_STATUS("libpython", HAVE_LIBPYTHON_SUPPORT),
+ FEATURE_STATUS("libslang", HAVE_SLANG_SUPPORT),
+ FEATURE_STATUS("libtraceevent", HAVE_LIBTRACEEVENT),
+ FEATURE_STATUS_TIP("libunwind", HAVE_LIBUNWIND_SUPPORT, "Deprecated, use LIBUNWIND=1 and install libunwind-dev[el] to build with it"),
+ FEATURE_STATUS("lzma", HAVE_LZMA_SUPPORT),
+ FEATURE_STATUS("numa_num_possible_cpus", HAVE_LIBNUMA_SUPPORT),
+ FEATURE_STATUS("zlib", HAVE_ZLIB_SUPPORT),
+ FEATURE_STATUS("zstd", HAVE_ZSTD_SUPPORT),
+ FEATURE_STATUS("rust", HAVE_RUST_SUPPORT),
+
+ /* this should remain at end, to know the array end */
+ FEATURE_STATUS(NULL, _)
+};
+
+static void on_off_print(const char *status)
+{
+ printf("[ ");
+
+ if (!strcmp(status, "OFF"))
+ color_fprintf(stdout, PERF_COLOR_RED, "%-3s", status);
+ else
+ color_fprintf(stdout, PERF_COLOR_GREEN, "%-3s", status);
+
+ printf(" ]");
+}
+
+/* Helper function to print status of a feature along with name/macro */
+void feature_status__printf(const struct feature_status *feature)
+{
+ const char *name = feature->name, *macro = feature->macro,
+ *status = feature->is_builtin ? "on" : "OFF";
+
+ printf("%22s: ", name);
+ on_off_print(status);
+ printf(" # %s", macro);
+
+ if (!feature->is_builtin && feature->tip)
+ printf(" ( tip: %s )", feature->tip);
+
+ putchar('\n');
+}
+
+/**
+ * check whether "feature" is built-in with perf
+ *
+ * returns:
+ * 0: NOT built-in or Feature not known
+ * 1: Built-in
+ */
+static int has_support(const char *feature)
+{
+ for (int i = 0; supported_features[i].name; ++i) {
+ if ((strcasecmp(feature, supported_features[i].name) == 0) ||
+ (strcasecmp(feature, supported_features[i].macro) == 0)) {
+ if (!quiet)
+ feature_status__printf(&supported_features[i]);
+ return supported_features[i].is_builtin;
+ }
+ }
+
+ if (!quiet)
+ pr_err("Unknown feature '%s', please use 'perf version --build-options' to see which ones are available.\n", feature);
+
+ return 0;
+}
+
+
+/**
+ * Usage: 'perf check feature <feature_list>'
+ *
+ * <feature_list> can be a single feature name/macro, or a comma-separated list
+ * of feature names/macros
+ * eg. argument can be "libtraceevent" or "libtraceevent,bpf" etc
+ *
+ * In case of a comma-separated list, feature_enabled will be 1, only if
+ * all features passed in the string are supported
+ *
+ * Note that argv will get modified
+ */
+static int subcommand_feature(int argc, const char **argv)
+{
+ char *feature_list;
+ char *feature_name;
+ int feature_enabled;
+
+ argc = parse_options(argc, argv, check_feature_options,
+ check_feature_usage, 0);
+
+ if (!argc)
+ usage_with_options(check_feature_usage, check_feature_options);
+
+ if (argc > 1) {
+ pr_err("Too many arguments passed to 'perf check feature'\n");
+ return -1;
+ }
+
+ feature_enabled = 1;
+ /* feature_list is a non-const copy of 'argv[0]' */
+ feature_list = strdup(argv[0]);
+ if (!feature_list) {
+ pr_err("ERROR: failed to allocate memory for feature list\n");
+ return -1;
+ }
+
+ feature_name = strtok(feature_list, ",");
+
+ while (feature_name) {
+ feature_enabled &= has_support(feature_name);
+ feature_name = strtok(NULL, ",");
+ }
+
+ free(feature_list);
+
+ return !feature_enabled;
+}
+
+int cmd_check(int argc, const char **argv)
+{
+ argc = parse_options_subcommand(argc, argv, check_options,
+ check_subcommands, check_usage, 0);
+
+ if (!argc)
+ usage_with_options(check_usage, check_options);
+
+ if (strcmp(argv[0], "feature") == 0)
+ return subcommand_feature(argc, argv);
+
+ /* If no subcommand matched above, print usage help */
+ pr_err("Unknown subcommand: %s\n", argv[0]);
+ usage_with_options(check_usage, check_options);
+
+ /* free usage string allocated by parse_options_subcommand */
+ free((void *)check_usage[0]);
+
+ return 0;
+}