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authorLai Jiangshan <laijs@cn.fujitsu.com>2009-03-06 19:21:46 +0300
committerIngo Molnar <mingo@elte.hu>2009-03-06 19:39:04 +0300
commit4370aa4aa75391a5e2e06bccb0919109f725ed8e (patch)
tree602a6ea4e404d17e610d4a9979d615ff2d0bfd98 /include/linux/string.h
parentf036be96dd9ce442ffb9ab33e3c165f5178815c0 (diff)
downloadlinux-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.h7
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);