1 files changed, 0 insertions, 428 deletions
diff --git a/Documentation/perf_counter/perf.c b/Documentation/perf_counter/perf.c
deleted file mode 100644
index 4eb725933703..000000000000
--- a/Documentation/perf_counter/perf.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * perf.c
- *
- * Performance analysis utility.
- *
- * This is the main hub from which the sub-commands (perf stat,
- * perf top, perf record, perf report, etc.) are started.
- */
-#include "builtin.h"
-
-#include "util/exec_cmd.h"
-#include "util/cache.h"
-#include "util/quote.h"
-#include "util/run-command.h"
-
-const char perf_usage_string[] =
-	"perf [--version] [--help] COMMAND [ARGS]";
-
-const char perf_more_info_string[] =
-	"See 'perf help COMMAND' for more information on a specific command.";
-
-static int use_pager = -1;
-struct pager_config {
-	const char *cmd;
-	int val;
-};
-
-static int pager_command_config(const char *var, const char *value, void *data)
-{
-	struct pager_config *c = data;
-	if (!prefixcmp(var, "pager.") && !strcmp(var + 6, c->cmd))
-		c->val = perf_config_bool(var, value);
-	return 0;
-}
-
-/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
-int check_pager_config(const char *cmd)
-{
-	struct pager_config c;
-	c.cmd = cmd;
-	c.val = -1;
-	perf_config(pager_command_config, &c);
-	return c.val;
-}
-
-static void commit_pager_choice(void) {
-	switch (use_pager) {
-	case 0:
-		setenv("PERF_PAGER", "cat", 1);
-		break;
-	case 1:
-		/* setup_pager(); */
-		break;
-	default:
-		break;
-	}
-}
-
-static int handle_options(const char*** argv, int* argc, int* envchanged)
-{
-	int handled = 0;
-
-	while (*argc > 0) {
-		const char *cmd = (*argv)[0];
-		if (cmd[0] != '-')
-			break;
-
-		/*
-		 * For legacy reasons, the "version" and "help"
-		 * commands can be written with "--" prepended
-		 * to make them look like flags.
-		 */
-		if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version"))
-			break;
-
-		/*
-		 * Check remaining flags.
-		 */
-		if (!prefixcmp(cmd, "--exec-path")) {
-			cmd += 11;
-			if (*cmd == '=')
-				perf_set_argv_exec_path(cmd + 1);
-			else {
-				puts(perf_exec_path());
-				exit(0);
-			}
-		} else if (!strcmp(cmd, "--html-path")) {
-			puts(system_path(PERF_HTML_PATH));
-			exit(0);
-		} else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
-			use_pager = 1;
-		} else if (!strcmp(cmd, "--no-pager")) {
-			use_pager = 0;
-			if (envchanged)
-				*envchanged = 1;
-		} else if (!strcmp(cmd, "--perf-dir")) {
-			if (*argc < 2) {
-				fprintf(stderr, "No directory given for --perf-dir.\n" );
-				usage(perf_usage_string);
-			}
-			setenv(PERF_DIR_ENVIRONMENT, (*argv)[1], 1);
-			if (envchanged)
-				*envchanged = 1;
-			(*argv)++;
-			(*argc)--;
-			handled++;
-		} else if (!prefixcmp(cmd, "--perf-dir=")) {
-			setenv(PERF_DIR_ENVIRONMENT, cmd + 10, 1);
-			if (envchanged)
-				*envchanged = 1;
-		} else if (!strcmp(cmd, "--work-tree")) {
-			if (*argc < 2) {
-				fprintf(stderr, "No directory given for --work-tree.\n" );
-				usage(perf_usage_string);
-			}
-			setenv(PERF_WORK_TREE_ENVIRONMENT, (*argv)[1], 1);
-			if (envchanged)
-				*envchanged = 1;
-			(*argv)++;
-			(*argc)--;
-		} else if (!prefixcmp(cmd, "--work-tree=")) {
-			setenv(PERF_WORK_TREE_ENVIRONMENT, cmd + 12, 1);
-			if (envchanged)
-				*envchanged = 1;
-		} else {
-			fprintf(stderr, "Unknown option: %s\n", cmd);
-			usage(perf_usage_string);
-		}
-
-		(*argv)++;
-		(*argc)--;
-		handled++;
-	}
-	return handled;
-}
-
-static int handle_alias(int *argcp, const char ***argv)
-{
-	int envchanged = 0, ret = 0, saved_errno = errno;
-	int count, option_count;
-	const char** new_argv;
-	const char *alias_command;
-	char *alias_string;
-
-	alias_command = (*argv)[0];
-	alias_string = alias_lookup(alias_command);
-	if (alias_string) {
-		if (alias_string[0] == '!') {
-			if (*argcp > 1) {
-				struct strbuf buf;
-
-				strbuf_init(&buf, PATH_MAX);
-				strbuf_addstr(&buf, alias_string);
-				sq_quote_argv(&buf, (*argv) + 1, PATH_MAX);
-				free(alias_string);
-				alias_string = buf.buf;
-			}
-			ret = system(alias_string + 1);
-			if (ret >= 0 && WIFEXITED(ret) &&
-			    WEXITSTATUS(ret) != 127)
-				exit(WEXITSTATUS(ret));
-			die("Failed to run '%s' when expanding alias '%s'",
-			    alias_string + 1, alias_command);
-		}
-		count = split_cmdline(alias_string, &new_argv);
-		if (count < 0)
-			die("Bad alias.%s string", alias_command);
-		option_count = handle_options(&new_argv, &count, &envchanged);
-		if (envchanged)
-			die("alias '%s' changes environment variables\n"
-				 "You can use '!perf' in the alias to do this.",
-				 alias_command);
-		memmove(new_argv - option_count, new_argv,
-				count * sizeof(char *));
-		new_argv -= option_count;
-
-		if (count < 1)
-			die("empty alias for %s", alias_command);
-
-		if (!strcmp(alias_command, new_argv[0]))
-			die("recursive alias: %s", alias_command);
-
-		new_argv = realloc(new_argv, sizeof(char*) *
-				    (count + *argcp + 1));
-		/* insert after command name */
-		memcpy(new_argv + count, *argv + 1, sizeof(char*) * *argcp);
-		new_argv[count+*argcp] = NULL;
-
-		*argv = new_argv;
-		*argcp += count - 1;
-
-		ret = 1;
-	}
-
-	errno = saved_errno;
-
-	return ret;
-}
-
-const char perf_version_string[] = PERF_VERSION;
-
-#define RUN_SETUP	(1<<0)
-#define USE_PAGER	(1<<1)
-/*
- * require working tree to be present -- anything uses this needs
- * RUN_SETUP for reading from the configuration file.
- */
-#define NEED_WORK_TREE	(1<<2)
-
-struct cmd_struct {
-	const char *cmd;
-	int (*fn)(int, const char **, const char *);
-	int option;
-};
-
-static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
-{
-	int status;
-	struct stat st;
-	const char *prefix;
-
-	prefix = NULL;
-	if (p->option & RUN_SETUP)
-		prefix = NULL; /* setup_perf_directory(); */
-
-	if (use_pager == -1 && p->option & RUN_SETUP)
-		use_pager = check_pager_config(p->cmd);
-	if (use_pager == -1 && p->option & USE_PAGER)
-		use_pager = 1;
-	commit_pager_choice();
-
-	if (p->option & NEED_WORK_TREE)
-		/* setup_work_tree() */;
-
-	status = p->fn(argc, argv, prefix);
-	if (status)
-		return status & 0xff;
-
-	/* Somebody closed stdout? */
-	if (fstat(fileno(stdout), &st))
-		return 0;
-	/* Ignore write errors for pipes and sockets.. */
-	if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
-		return 0;
-
-	/* Check for ENOSPC and EIO errors.. */
-	if (fflush(stdout))
-		die("write failure on standard output: %s", strerror(errno));
-	if (ferror(stdout))
-		die("unknown write failure on standard output");
-	if (fclose(stdout))
-		die("close failed on standard output: %s", strerror(errno));
-	return 0;
-}
-
-static void handle_internal_command(int argc, const char **argv)
-{
-	const char *cmd = argv[0];
-	static struct cmd_struct commands[] = {
-		{ "help", cmd_help, 0 },
-		{ "list", cmd_list, 0 },
-		{ "record", cmd_record, 0 },
-		{ "report", cmd_report, 0 },
-		{ "stat", cmd_stat, 0 },
-		{ "top", cmd_top, 0 },
-		{ "annotate", cmd_annotate, 0 },
-		{ "version", cmd_version, 0 },
-	};
-	int i;
-	static const char ext[] = STRIP_EXTENSION;
-
-	if (sizeof(ext) > 1) {
-		i = strlen(argv[0]) - strlen(ext);
-		if (i > 0 && !strcmp(argv[0] + i, ext)) {
-			char *argv0 = strdup(argv[0]);
-			argv[0] = cmd = argv0;
-			argv0[i] = '\0';
-		}
-	}
-
-	/* Turn "perf cmd --help" into "perf help cmd" */
-	if (argc > 1 && !strcmp(argv[1], "--help")) {
-		argv[1] = argv[0];
-		argv[0] = cmd = "help";
-	}
-
-	for (i = 0; i < ARRAY_SIZE(commands); i++) {
-		struct cmd_struct *p = commands+i;
-		if (strcmp(p->cmd, cmd))
-			continue;
-		exit(run_builtin(p, argc, argv));
-	}
-}
-
-static void execv_dashed_external(const char **argv)
-{
-	struct strbuf cmd = STRBUF_INIT;
-	const char *tmp;
-	int status;
-
-	strbuf_addf(&cmd, "perf-%s", argv[0]);
-
-	/*
-	 * argv[0] must be the perf command, but the argv array
-	 * belongs to the caller, and may be reused in
-	 * subsequent loop iterations. Save argv[0] and
-	 * restore it on error.
-	 */
-	tmp = argv[0];
-	argv[0] = cmd.buf;
-
-	/*
-	 * if we fail because the command is not found, it is
-	 * OK to return. Otherwise, we just pass along the status code.
-	 */
-	status = run_command_v_opt(argv, 0);
-	if (status != -ERR_RUN_COMMAND_EXEC) {
-		if (IS_RUN_COMMAND_ERR(status))
-			die("unable to run '%s'", argv[0]);
-		exit(-status);
-	}
-	errno = ENOENT; /* as if we called execvp */
-
-	argv[0] = tmp;
-
-	strbuf_release(&cmd);
-}
-
-static int run_argv(int *argcp, const char ***argv)
-{
-	int done_alias = 0;
-
-	while (1) {
-		/* See if it's an internal command */
-		handle_internal_command(*argcp, *argv);
-
-		/* .. then try the external ones */
-		execv_dashed_external(*argv);
-
-		/* It could be an alias -- this works around the insanity
-		 * of overriding "perf log" with "perf show" by having
-		 * alias.log = show
-		 */
-		if (done_alias || !handle_alias(argcp, argv))
-			break;
-		done_alias = 1;
-	}
-
-	return done_alias;
-}
-
-
-int main(int argc, const char **argv)
-{
-	const char *cmd;
-
-	cmd = perf_extract_argv0_path(argv[0]);
-	if (!cmd)
-		cmd = "perf-help";
-
-	/*
-	 * "perf-xxxx" is the same as "perf xxxx", but we obviously:
-	 *
-	 *  - cannot take flags in between the "perf" and the "xxxx".
-	 *  - cannot execute it externally (since it would just do
-	 *    the same thing over again)
-	 *
-	 * So we just directly call the internal command handler, and
-	 * die if that one cannot handle it.
-	 */
-	if (!prefixcmp(cmd, "perf-")) {
-		cmd += 5;
-		argv[0] = cmd;
-		handle_internal_command(argc, argv);
-		die("cannot handle %s internally", cmd);
-	}
-
-	/* Look for flags.. */
-	argv++;
-	argc--;
-	handle_options(&argv, &argc, NULL);
-	commit_pager_choice();
-	if (argc > 0) {
-		if (!prefixcmp(argv[0], "--"))
-			argv[0] += 2;
-	} else {
-		/* The user didn't specify a command; give them help */
-		printf("\n usage: %s\n\n", perf_usage_string);
-		list_common_cmds_help();
-		printf("\n %s\n\n", perf_more_info_string);
-		exit(1);
-	}
-	cmd = argv[0];
-
-	/*
-	 * We use PATH to find perf commands, but we prepend some higher
-	 * precidence paths: the "--exec-path" option, the PERF_EXEC_PATH
-	 * environment, and the $(perfexecdir) from the Makefile at build
-	 * time.
-	 */
-	setup_path();
-
-	while (1) {
-		static int done_help = 0;
-		static int was_alias = 0;
-
-		was_alias = run_argv(&argc, &argv);
-		if (errno != ENOENT)
-			break;
-
-		if (was_alias) {
-			fprintf(stderr, "Expansion of alias '%s' failed; "
-				"'%s' is not a perf-command\n",
-				cmd, argv[0]);
-			exit(1);
-		}
-		if (!done_help) {
-			cmd = argv[0] = help_unknown_cmd(cmd);
-			done_help = 1;
-		} else
-			break;
-	}
-
-	fprintf(stderr, "Failed to run command '%s': %s\n",
-		cmd, strerror(errno));
-
-	return 1;
-}