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tools: Adopt __noreturn from kernel sources

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To have a more compact way to specify that a function doesn't return,
instead of the open coded:

	__attribute__((noreturn))

And use it instead of the tools/perf/ specific variation, NORETURN.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-l0y144qzixcy5t4c6i7pdiqj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-06-16 11:39:15 -03:00
parent 36ce565114
commit 6c3466435b
4 changed files with 11 additions and 10 deletions
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6
tools/perf/util/usage.c
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@ -16,13 +16,13 @@ static void report(const char *prefix, const char *err, va_list params)
fprintf(stderr, " %s%s\n", prefix, msg);
}
static NORETURN void usage_builtin(const char *err)
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)
static __noreturn void die_builtin(const char *err, va_list params)
{
report(" Fatal: ", err, params);
exit(128);
@ -40,7 +40,7 @@ static void warn_builtin(const char *warn, va_list 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 (*usage_routine)(const char *err) __noreturn = usage_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;