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	Add status for BPF skeletons, to see if a build has them enabled:
```
$ perf version --build-options
perf version 6.6.rc1.g0381ae36d1a6
                 dwarf: [ OFF ]  # HAVE_DWARF_SUPPORT
    dwarf_getlocations: [ OFF ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
         syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                libbfd: [ OFF ]  # HAVE_LIBBFD_SUPPORT
            debuginfod: [ OFF ]  # HAVE_DEBUGINFOD_SUPPORT
                libelf: [ OFF ]  # HAVE_LIBELF_SUPPORT
               libnuma: [ OFF ]  # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ OFF ]  # HAVE_LIBNUMA_SUPPORT
               libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
             libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
              libslang: [ on  ]  # HAVE_SLANG_SUPPORT
             libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
             libunwind: [ OFF ]  # HAVE_LIBUNWIND_SUPPORT
    libdw-dwarf-unwind: [ OFF ]  # HAVE_DWARF_SUPPORT
                  zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                  lzma: [ on  ]  # HAVE_LZMA_SUPPORT
             get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                   bpf: [ OFF ]  # HAVE_LIBBPF_SUPPORT
                   aio: [ on  ]  # HAVE_AIO_SUPPORT
                  zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
               libpfm4: [ on  ]  # HAVE_LIBPFM
         libtraceevent: [ on  ]  # HAVE_LIBTRACEEVENT
         bpf_skeletons: [ OFF ]  # HAVE_BPF_SKEL
```
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Patrice Duroux <patrice.duroux@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Tom Rix <trix@redhat.com>
Cc: llvm@lists.linux.dev
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230914211948.814999-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
		
	
			
		
			
				
	
	
		
			98 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0
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#include "builtin.h"
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#include "color.h"
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#include "util/debug.h"
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#include "util/header.h"
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#include <tools/config.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <subcmd/parse-options.h>
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struct version {
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	bool	build_options;
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};
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static struct version version;
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static struct option version_options[] = {
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	OPT_BOOLEAN(0, "build-options", &version.build_options,
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		    "display the build options"),
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	OPT_END(),
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};
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static const char * const version_usage[] = {
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	"perf version [<options>]",
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	NULL
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};
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static void on_off_print(const char *status)
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{
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	printf("[ ");
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	if (!strcmp(status, "OFF"))
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		color_fprintf(stdout, PERF_COLOR_RED, "%-3s", status);
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	else
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		color_fprintf(stdout, PERF_COLOR_GREEN, "%-3s", status);
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	printf(" ]");
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}
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static void status_print(const char *name, const char *macro,
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			 const char *status)
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{
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	printf("%22s: ", name);
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	on_off_print(status);
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	printf("  # %s\n", macro);
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}
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#define STATUS(__d, __m)				\
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do {							\
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	if (IS_BUILTIN(__d))				\
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		status_print(#__m, #__d, "on");		\
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	else						\
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		status_print(#__m, #__d, "OFF");	\
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} while (0)
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static void library_status(void)
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{
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	STATUS(HAVE_DWARF_SUPPORT, dwarf);
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	STATUS(HAVE_DWARF_GETLOCATIONS_SUPPORT, dwarf_getlocations);
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#ifndef HAVE_SYSCALL_TABLE_SUPPORT
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	STATUS(HAVE_LIBAUDIT_SUPPORT, libaudit);
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#endif
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	STATUS(HAVE_SYSCALL_TABLE_SUPPORT, syscall_table);
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	STATUS(HAVE_LIBBFD_SUPPORT, libbfd);
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	STATUS(HAVE_DEBUGINFOD_SUPPORT, debuginfod);
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	STATUS(HAVE_LIBELF_SUPPORT, libelf);
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	STATUS(HAVE_LIBNUMA_SUPPORT, libnuma);
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	STATUS(HAVE_LIBNUMA_SUPPORT, numa_num_possible_cpus);
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	STATUS(HAVE_LIBPERL_SUPPORT, libperl);
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	STATUS(HAVE_LIBPYTHON_SUPPORT, libpython);
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	STATUS(HAVE_SLANG_SUPPORT, libslang);
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	STATUS(HAVE_LIBCRYPTO_SUPPORT, libcrypto);
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	STATUS(HAVE_LIBUNWIND_SUPPORT, libunwind);
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	STATUS(HAVE_DWARF_SUPPORT, libdw-dwarf-unwind);
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	STATUS(HAVE_ZLIB_SUPPORT, zlib);
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	STATUS(HAVE_LZMA_SUPPORT, lzma);
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	STATUS(HAVE_AUXTRACE_SUPPORT, get_cpuid);
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	STATUS(HAVE_LIBBPF_SUPPORT, bpf);
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	STATUS(HAVE_AIO_SUPPORT, aio);
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	STATUS(HAVE_ZSTD_SUPPORT, zstd);
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	STATUS(HAVE_LIBPFM, libpfm4);
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	STATUS(HAVE_LIBTRACEEVENT, libtraceevent);
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	STATUS(HAVE_BPF_SKEL, bpf_skeletons);
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}
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int cmd_version(int argc, const char **argv)
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{
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	argc = parse_options(argc, argv, version_options, version_usage,
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			     PARSE_OPT_STOP_AT_NON_OPTION);
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	printf("perf version %s\n", perf_version_string);
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	if (version.build_options || verbose > 0)
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		library_status();
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	return 0;
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}
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