diff options
| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2009-03-06 19:21:46 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-06 19:39:04 +0300 |
| commit | 4370aa4aa75391a5e2e06bccb0919109f725ed8e (patch) | |
| tree | 602a6ea4e404d17e610d4a9979d615ff2d0bfd98 /include/linux/string.h | |
| parent | f036be96dd9ce442ffb9ab33e3c165f5178815c0 (diff) | |
| download | linux-4370aa4aa75391a5e2e06bccb0919109f725ed8e.tar.xz | |
vsprintf: add binary printf
Impact: add new APIs for binary trace printk infrastructure
vbin_printf(): write args to binary buffer, string is copied
when "%s" is occurred.
bstr_printf(): read from binary buffer for args and format a string
[fweisbec@gmail.com: rebase]
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1236356510-8381-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/string.h')
| -rw-r--r-- | include/linux/string.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h index d18fc198aa2f..27ac31784ad2 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -10,6 +10,7 @@ #include <linux/compiler.h> /* for inline */ #include <linux/types.h> /* for size_t */ #include <linux/stddef.h> /* for NULL */ +#include <stdarg.h> extern char *strndup_user(const char __user *, long); @@ -111,6 +112,12 @@ extern void argv_free(char **argv); extern bool sysfs_streq(const char *s1, const char *s2); +#ifdef CONFIG_BINARY_PRINTF +int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args); +int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf); +int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4); +#endif + extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, const void *from, size_t available); |