From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: linux-kernel@vger.kernel.org, Jiri Olsa <jolsa@redhat.com>,
Namhyung Kim <namhyung@kernel.org>
Subject: [PATCH v2 11/14] perf: Move help_unknown_cmd() to its own file
Date: Mon, 7 Dec 2015 22:21:49 -0600 [thread overview]
Message-ID: <cae4d7de8656d239d10fc4e9082f23713ca1eace.1449548395.git.jpoimboe@redhat.com> (raw)
In-Reply-To: <cover.1449548395.git.jpoimboe@redhat.com>
help_unknown_cmd() is quite perf-specific because it relies on some
perf_config*() functions. Move it and its supporting functions out into
a separate file so that help.c can be moved to a library.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
---
tools/perf/util/Build | 1 +
tools/perf/util/help-unknown-cmd.c | 103 +++++++++++++++++++++++++++++++++++
tools/perf/util/help-unknown-cmd.h | 0
tools/perf/util/help.c | 108 ++-----------------------------------
tools/perf/util/help.h | 3 ++
5 files changed, 110 insertions(+), 105 deletions(-)
create mode 100644 tools/perf/util/help-unknown-cmd.c
create mode 100644 tools/perf/util/help-unknown-cmd.h
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 65fef59..99b3dae 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -87,6 +87,7 @@ libperf-$(CONFIG_AUXTRACE) += intel-bts.o
libperf-y += parse-branch-options.o
libperf-y += parse-regs-options.o
libperf-y += term.o
+libperf-y += help-unknown-cmd.o
libperf-$(CONFIG_LIBBPF) += bpf-loader.o
libperf-$(CONFIG_BPF_PROLOGUE) += bpf-prologue.o
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
new file mode 100644
index 0000000..c30ae78
--- /dev/null
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -0,0 +1,103 @@
+#include "util.h"
+#include "help.h"
+#include "../builtin.h"
+#include "levenshtein.h"
+
+static int autocorrect;
+static struct cmdnames aliases;
+
+static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "help.autocorrect"))
+ autocorrect = perf_config_int(var,value);
+ /* Also use aliases for command lookup */
+ if (!prefixcmp(var, "alias."))
+ add_cmdname(&aliases, var + 6, strlen(var + 6));
+
+ return perf_default_config(var, value, cb);
+}
+
+static int levenshtein_compare(const void *p1, const void *p2)
+{
+ const struct cmdname *const *c1 = p1, *const *c2 = p2;
+ const char *s1 = (*c1)->name, *s2 = (*c2)->name;
+ int l1 = (*c1)->len;
+ int l2 = (*c2)->len;
+ return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
+}
+
+static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
+{
+ unsigned int i;
+
+ ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
+
+ for (i = 0; i < old->cnt; i++)
+ cmds->names[cmds->cnt++] = old->names[i];
+ zfree(&old->names);
+ old->cnt = 0;
+}
+
+const char *help_unknown_cmd(const char *cmd)
+{
+ unsigned int i, n = 0, best_similarity = 0;
+ struct cmdnames main_cmds, other_cmds;
+
+ memset(&main_cmds, 0, sizeof(main_cmds));
+ memset(&other_cmds, 0, sizeof(main_cmds));
+ memset(&aliases, 0, sizeof(aliases));
+
+ perf_config(perf_unknown_cmd_config, NULL);
+
+ load_command_list("perf-", &main_cmds, &other_cmds);
+
+ add_cmd_list(&main_cmds, &aliases);
+ add_cmd_list(&main_cmds, &other_cmds);
+ qsort(main_cmds.names, main_cmds.cnt,
+ sizeof(main_cmds.names), cmdname_compare);
+ uniq(&main_cmds);
+
+ if (main_cmds.cnt) {
+ /* This reuses cmdname->len for similarity index */
+ for (i = 0; i < main_cmds.cnt; ++i)
+ main_cmds.names[i]->len =
+ levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
+
+ qsort(main_cmds.names, main_cmds.cnt,
+ sizeof(*main_cmds.names), levenshtein_compare);
+
+ best_similarity = main_cmds.names[0]->len;
+ n = 1;
+ while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
+ ++n;
+ }
+
+ if (autocorrect && n == 1) {
+ const char *assumed = main_cmds.names[0]->name;
+
+ main_cmds.names[0] = NULL;
+ clean_cmdnames(&main_cmds);
+ fprintf(stderr, "WARNING: You called a perf program named '%s', "
+ "which does not exist.\n"
+ "Continuing under the assumption that you meant '%s'\n",
+ cmd, assumed);
+ if (autocorrect > 0) {
+ fprintf(stderr, "in %0.1f seconds automatically...\n",
+ (float)autocorrect/10.0);
+ poll(NULL, 0, autocorrect * 100);
+ }
+ return assumed;
+ }
+
+ fprintf(stderr, "perf: '%s' is not a perf-command. See 'perf --help'.\n", cmd);
+
+ if (main_cmds.cnt && best_similarity < 6) {
+ fprintf(stderr, "\nDid you mean %s?\n",
+ n < 2 ? "this": "one of these");
+
+ for (i = 0; i < n; i++)
+ fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
+ }
+
+ exit(1);
+}
diff --git a/tools/perf/util/help-unknown-cmd.h b/tools/perf/util/help-unknown-cmd.h
new file mode 100644
index 0000000..e69de29
diff --git a/tools/perf/util/help.c b/tools/perf/util/help.c
index 573ce05..dfe9c5f 100644
--- a/tools/perf/util/help.c
+++ b/tools/perf/util/help.c
@@ -1,9 +1,6 @@
#include "util.h"
-#include "../builtin.h"
#include "exec_cmd.h"
-#include "levenshtein.h"
#include "help.h"
-#include <termios.h>
void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
{
@@ -17,7 +14,7 @@ void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
cmds->names[cmds->cnt++] = ent;
}
-static void clean_cmdnames(struct cmdnames *cmds)
+void clean_cmdnames(struct cmdnames *cmds)
{
unsigned int i;
@@ -28,14 +25,14 @@ static void clean_cmdnames(struct cmdnames *cmds)
cmds->alloc = 0;
}
-static int cmdname_compare(const void *a_, const void *b_)
+int cmdname_compare(const void *a_, const void *b_)
{
struct cmdname *a = *(struct cmdname **)a_;
struct cmdname *b = *(struct cmdname **)b_;
return strcmp(a->name, b->name);
}
-static void uniq(struct cmdnames *cmds)
+void uniq(struct cmdnames *cmds)
{
unsigned int i, j;
@@ -241,102 +238,3 @@ int is_in_cmdlist(struct cmdnames *c, const char *s)
return 1;
return 0;
}
-
-static int autocorrect;
-static struct cmdnames aliases;
-
-static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
-{
- if (!strcmp(var, "help.autocorrect"))
- autocorrect = perf_config_int(var,value);
- /* Also use aliases for command lookup */
- if (!prefixcmp(var, "alias."))
- add_cmdname(&aliases, var + 6, strlen(var + 6));
-
- return perf_default_config(var, value, cb);
-}
-
-static int levenshtein_compare(const void *p1, const void *p2)
-{
- const struct cmdname *const *c1 = p1, *const *c2 = p2;
- const char *s1 = (*c1)->name, *s2 = (*c2)->name;
- int l1 = (*c1)->len;
- int l2 = (*c2)->len;
- return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
-}
-
-static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
-{
- unsigned int i;
-
- ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
-
- for (i = 0; i < old->cnt; i++)
- cmds->names[cmds->cnt++] = old->names[i];
- zfree(&old->names);
- old->cnt = 0;
-}
-
-const char *help_unknown_cmd(const char *cmd)
-{
- unsigned int i, n = 0, best_similarity = 0;
- struct cmdnames main_cmds, other_cmds;
-
- memset(&main_cmds, 0, sizeof(main_cmds));
- memset(&other_cmds, 0, sizeof(main_cmds));
- memset(&aliases, 0, sizeof(aliases));
-
- perf_config(perf_unknown_cmd_config, NULL);
-
- load_command_list("perf-", &main_cmds, &other_cmds);
-
- add_cmd_list(&main_cmds, &aliases);
- add_cmd_list(&main_cmds, &other_cmds);
- qsort(main_cmds.names, main_cmds.cnt,
- sizeof(main_cmds.names), cmdname_compare);
- uniq(&main_cmds);
-
- if (main_cmds.cnt) {
- /* This reuses cmdname->len for similarity index */
- for (i = 0; i < main_cmds.cnt; ++i)
- main_cmds.names[i]->len =
- levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
-
- qsort(main_cmds.names, main_cmds.cnt,
- sizeof(*main_cmds.names), levenshtein_compare);
-
- best_similarity = main_cmds.names[0]->len;
- n = 1;
- while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
- ++n;
- }
-
- if (autocorrect && n == 1) {
- const char *assumed = main_cmds.names[0]->name;
-
- main_cmds.names[0] = NULL;
- clean_cmdnames(&main_cmds);
- fprintf(stderr, "WARNING: You called a perf program named '%s', "
- "which does not exist.\n"
- "Continuing under the assumption that you meant '%s'\n",
- cmd, assumed);
- if (autocorrect > 0) {
- fprintf(stderr, "in %0.1f seconds automatically...\n",
- (float)autocorrect/10.0);
- poll(NULL, 0, autocorrect * 100);
- }
- return assumed;
- }
-
- fprintf(stderr, "perf: '%s' is not a perf-command. See 'perf --help'.\n", cmd);
-
- if (main_cmds.cnt && best_similarity < 6) {
- fprintf(stderr, "\nDid you mean %s?\n",
- n < 2 ? "this": "one of these");
-
- for (i = 0; i < n; i++)
- fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
- }
-
- exit(1);
-}
diff --git a/tools/perf/util/help.h b/tools/perf/util/help.h
index 7f5c6de..14851b0 100644
--- a/tools/perf/util/help.h
+++ b/tools/perf/util/help.h
@@ -20,6 +20,9 @@ void load_command_list(const char *prefix,
struct cmdnames *main_cmds,
struct cmdnames *other_cmds);
void add_cmdname(struct cmdnames *cmds, const char *name, size_t len);
+void clean_cmdnames(struct cmdnames *cmds);
+int cmdname_compare(const void *a, const void *b);
+void uniq(struct cmdnames *cmds);
/* Here we require that excludes is a sorted list. */
void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes);
int is_in_cmdlist(struct cmdnames *c, const char *s);
--
2.4.3
next prev parent reply other threads:[~2015-12-08 4:25 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-08 4:21 [PATCH v2 00/14] perf tools: Move perf subcommand framework into lib/tools Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 01/14] perf: Fix 'make clean' Josh Poimboeuf
2015-12-08 17:40 ` Jiri Olsa
2015-12-08 18:40 ` Jiri Olsa
2015-12-08 18:49 ` Josh Poimboeuf
2015-12-08 18:46 ` Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 02/14] perf: Use -iquote for local include paths Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 03/14] perf: Split up util.h Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 04/14] perf: Move term functions out of util.c Josh Poimboeuf
2015-12-09 15:53 ` Arnaldo Carvalho de Melo
2015-12-10 8:18 ` [tip:perf/core] perf tools: " tip-bot for Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 05/14] perf: Remove unused pager_use_color variable Josh Poimboeuf
2015-12-09 15:43 ` Arnaldo Carvalho de Melo
2015-12-10 8:18 ` [tip:perf/core] perf tools: " tip-bot for Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 06/14] perf: Split up cache.h Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 07/14] perf: Remove cache.h Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 08/14] perf: Save cmdline arguments earlier Josh Poimboeuf
2015-12-10 8:18 ` [tip:perf/core] perf tools: " tip-bot for Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 09/14] perf: Remove check for unused PERF_PAGER_IN_USE Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 10/14] perf: Move cmd_version() to builtin-version.c Josh Poimboeuf
2015-12-10 8:19 ` [tip:perf/core] perf tools: " tip-bot for Josh Poimboeuf
2015-12-08 4:21 ` Josh Poimboeuf [this message]
2015-12-08 4:21 ` [PATCH v2 12/14] perf tools: Move strlcpy() to tools/lib/string.c Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 13/14] perf tools: Move tools/lib/string.c to libapi Josh Poimboeuf
2015-12-08 4:21 ` [PATCH v2 14/14] perf tools: Move subcommand framework and related utils " Josh Poimboeuf
2015-12-08 18:16 ` Jiri Olsa
2015-12-08 18:49 ` Josh Poimboeuf
2015-12-08 19:09 ` Arnaldo Carvalho de Melo
2015-12-08 19:17 ` Josh Poimboeuf
2015-12-08 19:40 ` Arnaldo Carvalho de Melo
2015-12-08 21:48 ` Josh Poimboeuf
2015-12-08 22:27 ` Arnaldo Carvalho de Melo
2015-12-08 23:07 ` Josh Poimboeuf
2015-12-09 8:03 ` Ingo Molnar
2015-12-09 12:33 ` Josh Poimboeuf
2015-12-09 15:58 ` Arnaldo Carvalho de Melo
2015-12-09 18:59 ` Josh Poimboeuf
2015-12-10 1:40 ` Namhyung Kim
2015-12-10 14:54 ` Josh Poimboeuf
2015-12-10 21:35 ` Josh Poimboeuf
2015-12-11 11:21 ` Arnaldo Carvalho de Melo
2015-12-10 12:55 ` Arnaldo Carvalho de Melo
2015-12-10 15:15 ` Josh Poimboeuf
2015-12-10 1:58 ` Namhyung Kim
2015-12-10 2:00 ` [PATCH v2 00/14] perf tools: Move perf subcommand framework into lib/tools Namhyung Kim
2015-12-10 15:11 ` Josh Poimboeuf
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