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| author | Mike Frysinger <vapier@gentoo.org> | 2010-01-22 13:35:20 +0100 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-03-09 06:30:50 +0100 |
| commit | aebfef03249819886a7f9c981940cbd48d82ea47 (patch) | |
| tree | 95f436dac29ef51e20d61e2a66ffafdfc6ef1cc7 /arch/blackfin/kernel | |
| parent | Blackfin: implement ndelay() (diff) | |
| download | linux-aebfef03249819886a7f9c981940cbd48d82ea47.tar.xz linux-aebfef03249819886a7f9c981940cbd48d82ea47.zip | |
Blackfin: implement ftrace mcount test
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/kernel')
| -rw-r--r-- | arch/blackfin/kernel/ftrace-entry.S | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/ftrace-entry.S b/arch/blackfin/kernel/ftrace-entry.S index 76dd4fbcd17a..db3a51b0af21 100644 --- a/arch/blackfin/kernel/ftrace-entry.S +++ b/arch/blackfin/kernel/ftrace-entry.S @@ -1,7 +1,7 @@ /* * mcount and friends -- ftrace stuff * - * Copyright (C) 2009 Analog Devices Inc. + * Copyright (C) 2009-2010 Analog Devices Inc. * Licensed under the GPL-2 or later. */ @@ -21,6 +21,15 @@ * function will be waiting there. mmmm pie. */ ENTRY(__mcount) +#ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST + /* optional micro optimization: return if stopped */ + p1.l = _function_trace_stop; + p1.h = _function_trace_stop; + r3 = [p1]; + cc = r3 == 0; + if ! cc jump _ftrace_stub (bp); +#endif + /* save third function arg early so we can do testing below */ [--sp] = r2; |