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ftrace: Mark function tracer test functions noinline/noclone 

The ftrace function tracer self tests calls some functions to verify
the get traced. This relies on them not being inlined. Previously
this was ensured by putting them into another file, but with LTO
the compiler can inline across files, which makes the tests fail.

Mark these functions as noinline and noclone.

Link: http://lkml.kernel.org/r/20171221233732.31896-1-andi@firstfloor.org

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
hifive-unleashed-5.1
Andi Kleen 2017-12-21 15:37:32 -08:00 committed by Steven Rostedt (VMware)
parent 0e4d819d08
commit dd3dad0d71
1 changed files with 3 additions and 2 deletions
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5
kernel/trace/trace_selftest_dynamic.c
View File

@ -1,13 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include "trace.h"
int DYN_FTRACE_TEST_NAME(void)
noinline __noclone int DYN_FTRACE_TEST_NAME(void)
{
/* used to call mcount */
return 0;
}
int DYN_FTRACE_TEST_NAME2(void)
noinline __noclone int DYN_FTRACE_TEST_NAME2(void)
{
/* used to call mcount */
return 0;