Commit-ID: b699869285c4f6949f281ea57ac35ea9b9c6f467 Gitweb: http://git.kernel.org/tip/b699869285c4f6949f281ea57ac35ea9b9c6f467 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Tue, 8 Sep 2015 16:58:20 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 14 Sep 2015 12:50:21 -0300
perf env: Adopt perf_header__set_cmdline Move this from two globals to perf_env global, that eventually will be just perf_header->env or something else, to ease the refactoring series, leave it as a global and go on reading more of its fields, not as part of the header writing process but as a perf_env init one that will be used for perf.data-less situations. Tested-by: Wang Nan <wangn...@huawei.com> Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: Borislav Petkov <b...@suse.de> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Jiri Olsa <jo...@redhat.com> Cc: Kan Liang <kan.li...@intel.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/n/tip-2j78tdf8zn1ci0y6ji15b...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/env.c | 39 ++++++++++++++++++++++++++++++++++++ tools/perf/util/env.h | 4 ++++ tools/perf/util/header.c | 44 +++++------------------------------------ tools/perf/util/parse-options.c | 2 +- 4 files changed, 49 insertions(+), 40 deletions(-) diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 0b3e1b2..ca1e33a 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -1,6 +1,8 @@ #include "env.h" #include "util.h" +struct perf_env perf_env; + void perf_env__exit(struct perf_env *env) { zfree(&env->hostname); @@ -17,3 +19,40 @@ void perf_env__exit(struct perf_env *env) zfree(&env->pmu_mappings); zfree(&env->cpu); } + +int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]) +{ + int i; + + /* + * If env->cmdline_argv has already been set, do not override it. This allows + * a command to set the cmdline, parse args and then call another + * builtin function that implements a command -- e.g, cmd_kvm calling + * cmd_record. + */ + if (env->cmdline_argv != NULL) + return 0; + + /* do not include NULL termination */ + env->cmdline_argv = calloc(argc, sizeof(char *)); + if (env->cmdline_argv == NULL) + goto out_enomem; + + /* + * Must copy argv contents because it gets moved around during option + * parsing: + */ + for (i = 0; i < argc ; i++) { + env->cmdline_argv[i] = argv[i]; + if (env->cmdline_argv[i] == NULL) + goto out_free; + } + + env->nr_cmdline = argc; + + return 0; +out_free: + zfree(&env->cmdline_argv); +out_enomem: + return -ENOMEM; +} diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index b137051..70124d9 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -32,6 +32,10 @@ struct perf_env { struct cpu_topology_map *cpu; }; +extern struct perf_env perf_env; + void perf_env__exit(struct perf_env *env); +int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]); + #endif /* __PERF_ENV_H */ diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 8fd7b7d..151b831 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -24,9 +24,6 @@ #include "build-id.h" #include "data.h" -static u32 header_argc; -static const char **header_argv; - /* * magic2 = "PERFILE2" * must be a numerical value to let the endianness @@ -138,37 +135,6 @@ static char *do_read_string(int fd, struct perf_header *ph) return NULL; } -int -perf_header__set_cmdline(int argc, const char **argv) -{ - int i; - - /* - * If header_argv has already been set, do not override it. - * This allows a command to set the cmdline, parse args and - * then call another builtin function that implements a - * command -- e.g, cmd_kvm calling cmd_record. - */ - if (header_argv) - return 0; - - header_argc = (u32)argc; - - /* do not include NULL termination */ - header_argv = calloc(argc, sizeof(char *)); - if (!header_argv) - return -ENOMEM; - - /* - * must copy argv contents because it gets moved - * around during option parsing - */ - for (i = 0; i < argc ; i++) - header_argv[i] = argv[i]; - - return 0; -} - static int write_tracing_data(int fd, struct perf_header *h __maybe_unused, struct perf_evlist *evlist) { @@ -405,8 +371,8 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, { char buf[MAXPATHLEN]; char proc[32]; - u32 i, n; - int ret; + u32 n; + int i, ret; /* * actual atual path to perf binary @@ -420,7 +386,7 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, buf[ret] = '\0'; /* account for binary path */ - n = header_argc + 1; + n = perf_env.nr_cmdline + 1; ret = do_write(fd, &n, sizeof(n)); if (ret < 0) @@ -430,8 +396,8 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, if (ret < 0) return ret; - for (i = 0 ; i < header_argc; i++) { - ret = do_write_string(fd, header_argv[i]); + for (i = 0 ; i < perf_env.nr_cmdline; i++) { + ret = do_write_string(fd, perf_env.cmdline_argv[i]); if (ret < 0) return ret; } diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c index 01626be..9a38b05 100644 --- a/tools/perf/util/parse-options.c +++ b/tools/perf/util/parse-options.c @@ -496,7 +496,7 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o { struct parse_opt_ctx_t ctx; - perf_header__set_cmdline(argc, argv); + perf_env__set_cmdline(&perf_env, argc, argv); /* build usage string if it's not provided */ if (subcommands && !usagestr[0]) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
