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tools include: Adopt strstarts() from the kernel

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Replacing prefixcmp(), same purpose, inverted result, so standardize on
the kernel variant, to reduce silly differences among tools/ and the
kernel sources, making it easier for people to work in both codebases.

And then doing:

	if (strstarts(option, "no-"))

Looks clearer than doing:

	if (!prefixcmp(option, "no-"))

To figure out if option starts witn "no-".

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kaei42gi7lpa8subwtv7eug8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-07-20 15:27:39 -03:00
parent 082ab9a18e
commit 8e99b6d453
15 changed files with 50 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

16
tools/perf/perf.c
View file

@ -89,7 +89,7 @@ struct pager_config {
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))
if (strstarts(var, "pager.") && !strcmp(var + 6, c->cmd))
c->val = perf_config_bool(var, value);
return 0;
}
@ -108,9 +108,9 @@ static int check_pager_config(const char *cmd)
static int browser_command_config(const char *var, const char *value, void *data)
{
struct pager_config *c = data;
if (!prefixcmp(var, "tui.") && !strcmp(var + 4, c->cmd))
if (strstarts(var, "tui.") && !strcmp(var + 4, c->cmd))
c->val = perf_config_bool(var, value);
if (!prefixcmp(var, "gtk.") && !strcmp(var + 4, c->cmd))
if (strstarts(var, "gtk.") && !strcmp(var + 4, c->cmd))
c->val = perf_config_bool(var, value) ? 2 : 0;
return 0;
}
@ -192,7 +192,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
/*
* Check remaining flags.
*/
if (!prefixcmp(cmd, CMD_EXEC_PATH)) {
if (strstarts(cmd, CMD_EXEC_PATH)) {
cmd += strlen(CMD_EXEC_PATH);
if (*cmd == '=')
set_argv_exec_path(cmd + 1);
@ -229,7 +229,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
} else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) {
} else if (strstarts(cmd, CMD_DEBUGFS_DIR)) {
tracing_path_set(cmd + strlen(CMD_DEBUGFS_DIR));
fprintf(stderr, "dir: %s\n", tracing_path);
if (envchanged)
@ -470,14 +470,14 @@ int main(int argc, const char **argv)
* So we just directly call the internal command handler, and
* die if that one cannot handle it.
*/
if (!prefixcmp(cmd, "perf-")) {
if (strstarts(cmd, "perf-")) {
cmd += 5;
argv[0] = cmd;
handle_internal_command(argc, argv);
fprintf(stderr, "cannot handle %s internally", cmd);
goto out;
}
if (!prefixcmp(cmd, "trace")) {
if (strstarts(cmd, "trace")) {
#ifdef HAVE_LIBAUDIT_SUPPORT
setup_path();
argv[0] = "trace";
@ -495,7 +495,7 @@ int main(int argc, const char **argv)
commit_pager_choice();
if (argc > 0) {
if (!prefixcmp(argv[0], "--"))
if (strstarts(argv[0], "--"))
argv[0] += 2;
} else {
/* The user didn't specify a command; give them help */