kernel-fxtec-pro1x/tools/perf/util/usage.c
Ingo Molnar 864709302a perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/
Several people have suggested that 'perf' has become a full-fledged
tool that should be moved out of Documentation/. Move it to the
(new) tools/ directory.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 20:33:43 +02:00

80 lines
1.6 KiB
C

/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "util.h"
static void report(const char *prefix, const char *err, va_list params)
{
char msg[1024];
vsnprintf(msg, sizeof(msg), err, params);
fprintf(stderr, "%s%s\n", prefix, msg);
}
static NORETURN void usage_builtin(const char *err)
{
fprintf(stderr, "\n usage: %s\n", err);
exit(129);
}
static NORETURN void die_builtin(const char *err, va_list params)
{
report("fatal: ", err, params);
exit(128);
}
static void error_builtin(const char *err, va_list params)
{
report("error: ", err, params);
}
static void warn_builtin(const char *warn, va_list params)
{
report("warning: ", warn, params);
}
/* If we are in a dlopen()ed .so write to a global variable would segfault
* (ugh), so keep things static. */
static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
static void (*error_routine)(const char *err, va_list params) = error_builtin;
static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
{
die_routine = routine;
}
void usage(const char *err)
{
usage_routine(err);
}
void die(const char *err, ...)
{
va_list params;
va_start(params, err);
die_routine(err, params);
va_end(params);
}
int error(const char *err, ...)
{
va_list params;
va_start(params, err);
error_routine(err, params);
va_end(params);
return -1;
}
void warning(const char *warn, ...)
{
va_list params;
va_start(params, warn);
warn_routine(warn, params);
va_end(params);
}