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Diffstat (limited to 'tools/perf/util/parse-options.c')
-rw-r--r--tools/perf/util/parse-options.c276
1 files changed, 184 insertions, 92 deletions
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index 2bc9e70df7e..bf48092983c 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -78,6 +78,8 @@ static int get_value(struct parse_opt_ctx_t *p,
case OPTION_BOOLEAN:
*(bool *)opt->value = unset ? false : true;
+ if (opt->set)
+ *(bool *)opt->set = true;
return 0;
case OPTION_INCR:
@@ -224,6 +226,24 @@ static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
return 0;
}
if (!rest) {
+ if (!prefixcmp(options->long_name, "no-")) {
+ /*
+ * The long name itself starts with "no-", so
+ * accept the option without "no-" so that users
+ * do not have to enter "no-no-" to get the
+ * negation.
+ */
+ rest = skip_prefix(arg, options->long_name + 3);
+ if (rest) {
+ flags |= OPT_UNSET;
+ goto match;
+ }
+ /* Abbreviated case */
+ if (!prefixcmp(options->long_name + 3, arg)) {
+ flags |= OPT_UNSET;
+ goto is_abbreviated;
+ }
+ }
/* abbreviated? */
if (!strncmp(options->long_name, arg, arg_end - arg)) {
is_abbreviated:
@@ -259,6 +279,7 @@ is_abbreviated:
if (!rest)
continue;
}
+match:
if (*rest) {
if (*rest != '=')
continue;
@@ -339,10 +360,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
if (arg[1] != '-') {
ctx->opt = arg + 1;
if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(usagestr, options);
+ return usage_with_options_internal(usagestr, options, 0);
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(usagestr, options);
+ return parse_options_usage(usagestr, options, arg + 1, 1);
case -2:
goto unknown;
default:
@@ -352,10 +373,11 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
check_typos(arg + 1, options);
while (ctx->opt) {
if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(usagestr, options);
+ return usage_with_options_internal(usagestr, options, 0);
+ arg = ctx->opt;
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(usagestr, options);
+ return parse_options_usage(usagestr, options, arg, 1);
case -2:
/* fake a short option thing to hide the fact that we may have
* started to parse aggregated stuff
@@ -383,12 +405,14 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
if (internal_help && !strcmp(arg + 2, "help-all"))
return usage_with_options_internal(usagestr, options, 1);
if (internal_help && !strcmp(arg + 2, "help"))
- return parse_options_usage(usagestr, options);
+ return usage_with_options_internal(usagestr, options, 0);
if (!strcmp(arg + 2, "list-opts"))
- return PARSE_OPT_LIST;
+ return PARSE_OPT_LIST_OPTS;
+ if (!strcmp(arg + 2, "list-cmds"))
+ return PARSE_OPT_LIST_SUBCMDS;
switch (parse_long_opt(ctx, arg + 2, options)) {
case -1:
- return parse_options_usage(usagestr, options);
+ return parse_options_usage(usagestr, options, arg + 2, 0);
case -2:
goto unknown;
default:
@@ -411,25 +435,45 @@ int parse_options_end(struct parse_opt_ctx_t *ctx)
return ctx->cpidx + ctx->argc;
}
-int parse_options(int argc, const char **argv, const struct option *options,
- const char * const usagestr[], int flags)
+int parse_options_subcommand(int argc, const char **argv, const struct option *options,
+ const char *const subcommands[], const char *usagestr[], int flags)
{
struct parse_opt_ctx_t ctx;
perf_header__set_cmdline(argc, argv);
+ /* build usage string if it's not provided */
+ if (subcommands && !usagestr[0]) {
+ struct strbuf buf = STRBUF_INIT;
+
+ strbuf_addf(&buf, "perf %s [<options>] {", argv[0]);
+ for (int i = 0; subcommands[i]; i++) {
+ if (i)
+ strbuf_addstr(&buf, "|");
+ strbuf_addstr(&buf, subcommands[i]);
+ }
+ strbuf_addstr(&buf, "}");
+
+ usagestr[0] = strdup(buf.buf);
+ strbuf_release(&buf);
+ }
+
parse_options_start(&ctx, argc, argv, flags);
switch (parse_options_step(&ctx, options, usagestr)) {
case PARSE_OPT_HELP:
exit(129);
case PARSE_OPT_DONE:
break;
- case PARSE_OPT_LIST:
+ case PARSE_OPT_LIST_OPTS:
while (options->type != OPTION_END) {
printf("--%s ", options->long_name);
options++;
}
exit(130);
+ case PARSE_OPT_LIST_SUBCMDS:
+ for (int i = 0; subcommands[i]; i++)
+ printf("%s ", subcommands[i]);
+ exit(130);
default: /* PARSE_OPT_UNKNOWN */
if (ctx.argv[0][1] == '-') {
error("unknown option `%s'", ctx.argv[0] + 2);
@@ -442,9 +486,99 @@ int parse_options(int argc, const char **argv, const struct option *options,
return parse_options_end(&ctx);
}
+int parse_options(int argc, const char **argv, const struct option *options,
+ const char * const usagestr[], int flags)
+{
+ return parse_options_subcommand(argc, argv, options, NULL,
+ (const char **) usagestr, flags);
+}
+
#define USAGE_OPTS_WIDTH 24
#define USAGE_GAP 2
+static void print_option_help(const struct option *opts, int full)
+{
+ size_t pos;
+ int pad;
+
+ if (opts->type == OPTION_GROUP) {
+ fputc('\n', stderr);
+ if (*opts->help)
+ fprintf(stderr, "%s\n", opts->help);
+ return;
+ }
+ if (!full && (opts->flags & PARSE_OPT_HIDDEN))
+ return;
+
+ pos = fprintf(stderr, " ");
+ if (opts->short_name)
+ pos += fprintf(stderr, "-%c", opts->short_name);
+ else
+ pos += fprintf(stderr, " ");
+
+ if (opts->long_name && opts->short_name)
+ pos += fprintf(stderr, ", ");
+ if (opts->long_name)
+ pos += fprintf(stderr, "--%s", opts->long_name);
+
+ switch (opts->type) {
+ case OPTION_ARGUMENT:
+ break;
+ case OPTION_LONG:
+ case OPTION_U64:
+ case OPTION_INTEGER:
+ case OPTION_UINTEGER:
+ if (opts->flags & PARSE_OPT_OPTARG)
+ if (opts->long_name)
+ pos += fprintf(stderr, "[=<n>]");
+ else
+ pos += fprintf(stderr, "[<n>]");
+ else
+ pos += fprintf(stderr, " <n>");
+ break;
+ case OPTION_CALLBACK:
+ if (opts->flags & PARSE_OPT_NOARG)
+ break;
+ /* FALLTHROUGH */
+ case OPTION_STRING:
+ if (opts->argh) {
+ if (opts->flags & PARSE_OPT_OPTARG)
+ if (opts->long_name)
+ pos += fprintf(stderr, "[=<%s>]", opts->argh);
+ else
+ pos += fprintf(stderr, "[<%s>]", opts->argh);
+ else
+ pos += fprintf(stderr, " <%s>", opts->argh);
+ } else {
+ if (opts->flags & PARSE_OPT_OPTARG)
+ if (opts->long_name)
+ pos += fprintf(stderr, "[=...]");
+ else
+ pos += fprintf(stderr, "[...]");
+ else
+ pos += fprintf(stderr, " ...");
+ }
+ break;
+ default: /* OPTION_{BIT,BOOLEAN,SET_UINT,SET_PTR} */
+ case OPTION_END:
+ case OPTION_GROUP:
+ case OPTION_BIT:
+ case OPTION_BOOLEAN:
+ case OPTION_INCR:
+ case OPTION_SET_UINT:
+ case OPTION_SET_PTR:
+ break;
+ }
+
+ if (pos <= USAGE_OPTS_WIDTH)
+ pad = USAGE_OPTS_WIDTH - pos;
+ else {
+ fputc('\n', stderr);
+ pad = USAGE_OPTS_WIDTH;
+ }
+ fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
+}
+
int usage_with_options_internal(const char * const *usagestr,
const struct option *opts, int full)
{
@@ -464,87 +598,9 @@ int usage_with_options_internal(const char * const *usagestr,
if (opts->type != OPTION_GROUP)
fputc('\n', stderr);
- for (; opts->type != OPTION_END; opts++) {
- size_t pos;
- int pad;
-
- if (opts->type == OPTION_GROUP) {
- fputc('\n', stderr);
- if (*opts->help)
- fprintf(stderr, "%s\n", opts->help);
- continue;
- }
- if (!full && (opts->flags & PARSE_OPT_HIDDEN))
- continue;
-
- pos = fprintf(stderr, " ");
- if (opts->short_name)
- pos += fprintf(stderr, "-%c", opts->short_name);
- else
- pos += fprintf(stderr, " ");
-
- if (opts->long_name && opts->short_name)
- pos += fprintf(stderr, ", ");
- if (opts->long_name)
- pos += fprintf(stderr, "--%s", opts->long_name);
+ for ( ; opts->type != OPTION_END; opts++)
+ print_option_help(opts, full);
- switch (opts->type) {
- case OPTION_ARGUMENT:
- break;
- case OPTION_LONG:
- case OPTION_U64:
- case OPTION_INTEGER:
- case OPTION_UINTEGER:
- if (opts->flags & PARSE_OPT_OPTARG)
- if (opts->long_name)
- pos += fprintf(stderr, "[=<n>]");
- else
- pos += fprintf(stderr, "[<n>]");
- else
- pos += fprintf(stderr, " <n>");
- break;
- case OPTION_CALLBACK:
- if (opts->flags & PARSE_OPT_NOARG)
- break;
- /* FALLTHROUGH */
- case OPTION_STRING:
- if (opts->argh) {
- if (opts->flags & PARSE_OPT_OPTARG)
- if (opts->long_name)
- pos += fprintf(stderr, "[=<%s>]", opts->argh);
- else
- pos += fprintf(stderr, "[<%s>]", opts->argh);
- else
- pos += fprintf(stderr, " <%s>", opts->argh);
- } else {
- if (opts->flags & PARSE_OPT_OPTARG)
- if (opts->long_name)
- pos += fprintf(stderr, "[=...]");
- else
- pos += fprintf(stderr, "[...]");
- else
- pos += fprintf(stderr, " ...");
- }
- break;
- default: /* OPTION_{BIT,BOOLEAN,SET_UINT,SET_PTR} */
- case OPTION_END:
- case OPTION_GROUP:
- case OPTION_BIT:
- case OPTION_BOOLEAN:
- case OPTION_INCR:
- case OPTION_SET_UINT:
- case OPTION_SET_PTR:
- break;
- }
-
- if (pos <= USAGE_OPTS_WIDTH)
- pad = USAGE_OPTS_WIDTH - pos;
- else {
- fputc('\n', stderr);
- pad = USAGE_OPTS_WIDTH;
- }
- fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
- }
fputc('\n', stderr);
return PARSE_OPT_HELP;
@@ -559,9 +615,45 @@ void usage_with_options(const char * const *usagestr,
}
int parse_options_usage(const char * const *usagestr,
- const struct option *opts)
+ const struct option *opts,
+ const char *optstr, bool short_opt)
{
- return usage_with_options_internal(usagestr, opts, 0);
+ if (!usagestr)
+ goto opt;
+
+ fprintf(stderr, "\n usage: %s\n", *usagestr++);
+ while (*usagestr && **usagestr)
+ fprintf(stderr, " or: %s\n", *usagestr++);
+ while (*usagestr) {
+ fprintf(stderr, "%s%s\n",
+ **usagestr ? " " : "",
+ *usagestr);
+ usagestr++;
+ }
+ fputc('\n', stderr);
+
+opt:
+ for ( ; opts->type != OPTION_END; opts++) {
+ if (short_opt) {
+ if (opts->short_name == *optstr)
+ break;
+ continue;
+ }
+
+ if (opts->long_name == NULL)
+ continue;
+
+ if (!prefixcmp(optstr, opts->long_name))
+ break;
+ if (!prefixcmp(optstr, "no-") &&
+ !prefixcmp(optstr + 3, opts->long_name))
+ break;
+ }
+
+ if (opts->type != OPTION_END)
+ print_option_help(opts, 0);
+
+ return PARSE_OPT_HELP;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-03 18:16:25 +0000