Store __builtin_return_address (caller) rather than __func__ in likeliness
struct. 'line' and 'type' are combined in 'label'
+/- now denotes whether expectation fails in less than 5% of the tests - rather
than whether more unexpected than expected were encountered. The function at
the displayed filename & line and the caller are not necessarily the same.
A few more Likely Profiling Results changes were made.
struct seq_operations becomes static, unsigned ints true and false (shadowed)
are replaced by pos and neg.
---
New layout:
Likely Profiling Results
--------------------------------------------------------------------
[+- ]Type | # True | # False | Function@Filename:Line
unlikely | 0| 32082| fget+0xd0/0x1d0@include/asm/arch/atomic_32.h:235
Compiles and runs here. Thanks for previous comments.
include/linux/compiler.h | 16 ++++++++--------
lib/likely_prof.c | 45 +++++++++++++++++++++++++--------------------
2 files changed, 33 insertions(+), 28 deletions(-)
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index d6d9efc..bd31d4c 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -53,25 +53,25 @@ extern void __chk_io_ptr(const volatile void __iomem *);
#if defined(CONFIG_PROFILE_LIKELY) && !(defined(CONFIG_MODULE_UNLOAD) && defined(MODULE))
struct likeliness {
- const char *func;
- char *file;
- int line;
- int type;
+ char *const file;
+ unsigned long caller;
unsigned int count[2];
struct likeliness *next;
+ unsigned int label;
};
-extern int do_check_likely(struct likeliness *likeliness, int exp);
+extern int do_check_likely(struct likeliness *likeliness, unsigned int exp);
+#define LP_IS_EXPECTED 1
#define LP_UNSEEN 4
+#define LP_LINE_SHIFT 3
#define __check_likely(exp, is_likely) \
({ \
static struct likeliness likeliness = { \
- .func = __func__, \
.file = __FILE__, \
- .line = __LINE__, \
- .type = is_likely | ...
