diff options
| author | Robin Getz <robin.getz@analog.com> | 2009-07-06 18:53:19 +0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-09-17 05:31:43 +0400 |
| commit | 3f871feaf3390c6d6e578818f867917c2e4738a2 (patch) | |
| tree | 3b7ebc72793903361bb4b108bd829b21ede3fc01 /arch/blackfin/include/asm/early_printk.h | |
| parent | 53e18df745b6f833df07ead62ded09ebae3b0303 (diff) | |
| download | linux-3f871feaf3390c6d6e578818f867917c2e4738a2.tar.xz | |
Blackfin: add an early shadow console
Add a memory based shadow console to keep a copy of the printk buffer in a
location which can be found externally. This allows bootloaders to locate
and utilize the log buffer in case of silent (early/resume/etc...) crashes.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/include/asm/early_printk.h')
| -rw-r--r-- | arch/blackfin/include/asm/early_printk.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/early_printk.h b/arch/blackfin/include/asm/early_printk.h index 110f1c1f845c..f5b6b7d972e8 100644 --- a/arch/blackfin/include/asm/early_printk.h +++ b/arch/blackfin/include/asm/early_printk.h @@ -23,6 +23,8 @@ #ifdef CONFIG_EARLY_PRINTK extern int setup_early_printk(char *); +extern void enable_shadow_console(void); #else #define setup_early_printk(fmt) do { } while (0) +#define enable_shadow_console(fmt) do { } while (0) #endif /* CONFIG_EARLY_PRINTK */ |