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perf version: Print the compiled-in status of libraries

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This patch checks the values passed by CFLAGS (-DHAVE_XXX) and then
print the status of libraries.

For example, if HAVE_DWARF_SUPPORT is defined, that means the library
"dwarf" is compiled-in. The patch will print the status "on" for this
library otherwise it print the status "OFF".

A new option '--build-options' created for 'perf version' supports the
printing of library status.

For example:

$ ./perf version --build-options
    or
  ./perf --version --build-options
    or
  ./perf -v --build-options

perf version 4.13.rc5.g6727c5
                 dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
    dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                 glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                  gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
              libaudit: [ OFF ]  # HAVE_LIBAUDIT_SUPPORT
                libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
               libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
               libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
             libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
              libslang: [ on  ]  # HAVE_SLANG_SUPPORT
             libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
             libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
    libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                  zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                  lzma: [ on  ]  # HAVE_LZMA_SUPPORT
             get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                   bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT

v4:

1. Also print the macro name. That would make it easier
   to grep around in the source looking for where code
   related a particular features is located.

2. Update since HAVE_DWARF_GETLOCATIONS is renamed to
   HAVE_DWARF_GETLOCATIONS_SUPPORT

v3:

Remove following unnecessary help message.

1. [ on  ]: library is compiled-in
   [ OFF ]: library is disabled in make configuration
            OR library is not installed in build environment

2. Create '--build-options' option.

3. Use standard option parsing API 'parse_options'.

v2:

1. Use IS_BUILTIN macro to replace #ifdef/#endif block.

2. Print color for on/OFF.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1522402036-22915-5-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao 2018-03-30 17:27:14 +08:00 committed by Arnaldo Carvalho de Melo
parent a36ebe4e24
commit 9ff2a64708
1 changed files with 81 additions and 1 deletions
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82
tools/perf/builtin-version.c
View File

@ -1,11 +1,91 @@
// SPDX-License-Identifier: GPL-2.0
#include "builtin.h"
#include "perf.h"
#include "color.h"
#include <linux/compiler.h>
#include <tools/config.h>
#include <stdio.h>
#include <string.h>
#include <subcmd/parse-options.h>
int cmd_version(int argc __maybe_unused, const char **argv __maybe_unused)
int version_verbose;
struct version {
bool build_options;
};
static struct version version;
static struct option version_options[] = {
OPT_BOOLEAN(0, "build-options", &version.build_options,
"display the build options"),
};
static const char * const version_usage[] = {
"perf version [<options>]",
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(" ]");
}
static void status_print(const char *name, const char *macro,
const char *status)
{
printf("%22s: ", name);
on_off_print(status);
printf(" # %s\n", macro);
}
#define STATUS(__d, __m) \
do { \
if (IS_BUILTIN(__d)) \
status_print(#__m, #__d, "on"); \
else \
status_print(#__m, #__d, "OFF"); \
} while (0)
static void library_status(void)
{
STATUS(HAVE_DWARF_SUPPORT, dwarf);
STATUS(HAVE_DWARF_GETLOCATIONS_SUPPORT, dwarf_getlocations);
STATUS(HAVE_GLIBC_SUPPORT, glibc);
STATUS(HAVE_GTK2_SUPPORT, gtk2);
STATUS(HAVE_LIBAUDIT_SUPPORT, libaudit);
STATUS(HAVE_LIBBFD_SUPPORT, libbfd);
STATUS(HAVE_LIBELF_SUPPORT, libelf);
STATUS(HAVE_LIBNUMA_SUPPORT, libnuma);
STATUS(HAVE_LIBNUMA_SUPPORT, numa_num_possible_cpus);
STATUS(HAVE_LIBPERL_SUPPORT, libperl);
STATUS(HAVE_LIBPYTHON_SUPPORT, libpython);
STATUS(HAVE_SLANG_SUPPORT, libslang);
STATUS(HAVE_LIBCRYPTO_SUPPORT, libcrypto);
STATUS(HAVE_LIBUNWIND_SUPPORT, libunwind);
STATUS(HAVE_DWARF_SUPPORT, libdw-dwarf-unwind);
STATUS(HAVE_ZLIB_SUPPORT, zlib);
STATUS(HAVE_LZMA_SUPPORT, lzma);
STATUS(HAVE_AUXTRACE_SUPPORT, get_cpuid);
STATUS(HAVE_LIBBPF_SUPPORT, bpf);
}
int cmd_version(int argc, const char **argv)
{
argc = parse_options(argc, argv, version_options, version_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
printf("perf version %s\n", perf_version_string);
if (version.build_options || version_verbose == 1)
library_status();
return 0;
}