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-rw-r--r--lib/profile/InstrProfiling.c76
1 files changed, 48 insertions, 28 deletions
diff --git a/lib/profile/InstrProfiling.c b/lib/profile/InstrProfiling.c
index 8d010df28f18..58778aeec16a 100644
--- a/lib/profile/InstrProfiling.c
+++ b/lib/profile/InstrProfiling.c
@@ -8,41 +8,61 @@
\*===----------------------------------------------------------------------===*/
#include "InstrProfiling.h"
+#include "InstrProfilingInternal.h"
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#define INSTR_PROF_VALUE_PROF_DATA
+#include "InstrProfData.inc"
-__attribute__((visibility("hidden")))
-uint64_t __llvm_profile_get_magic(void) {
- /* Magic number to detect file format and endianness.
- *
- * Use 255 at one end, since no UTF-8 file can use that character. Avoid 0,
- * so that utilities, like strings, don't grab it as a string. 129 is also
- * invalid UTF-8, and high enough to be interesting.
- *
- * Use "lprofr" in the centre to stand for "LLVM Profile Raw", or "lprofR"
- * for 32-bit platforms.
- */
- unsigned char R = sizeof(void *) == sizeof(uint64_t) ? 'r' : 'R';
- return
- (uint64_t)255 << 56 |
- (uint64_t)'l' << 48 |
- (uint64_t)'p' << 40 |
- (uint64_t)'r' << 32 |
- (uint64_t)'o' << 24 |
- (uint64_t)'f' << 16 |
- (uint64_t) R << 8 |
- (uint64_t)129;
+char *(*GetEnvHook)(const char *) = 0;
+
+COMPILER_RT_VISIBILITY uint64_t __llvm_profile_get_magic(void) {
+ return sizeof(void *) == sizeof(uint64_t) ? (INSTR_PROF_RAW_MAGIC_64)
+ : (INSTR_PROF_RAW_MAGIC_32);
+}
+
+/* Return the number of bytes needed to add to SizeInBytes to make it
+ * the result a multiple of 8.
+ */
+COMPILER_RT_VISIBILITY uint8_t
+__llvm_profile_get_num_padding_bytes(uint64_t SizeInBytes) {
+ return 7 & (sizeof(uint64_t) - SizeInBytes % sizeof(uint64_t));
}
-__attribute__((visibility("hidden")))
-uint64_t __llvm_profile_get_version(void) {
- /* This should be bumped any time the output format changes. */
- return 1;
+COMPILER_RT_VISIBILITY uint64_t __llvm_profile_get_version(void) {
+ return INSTR_PROF_RAW_VERSION;
}
-__attribute__((visibility("hidden")))
-void __llvm_profile_reset_counters(void) {
+COMPILER_RT_VISIBILITY void __llvm_profile_reset_counters(void) {
uint64_t *I = __llvm_profile_begin_counters();
uint64_t *E = __llvm_profile_end_counters();
- memset(I, 0, sizeof(uint64_t)*(E - I));
+ memset(I, 0, sizeof(uint64_t) * (E - I));
+
+ const __llvm_profile_data *DataBegin = __llvm_profile_begin_data();
+ const __llvm_profile_data *DataEnd = __llvm_profile_end_data();
+ const __llvm_profile_data *DI;
+ for (DI = DataBegin; DI != DataEnd; ++DI) {
+ uint64_t CurrentVSiteCount = 0;
+ uint32_t VKI, i;
+ if (!DI->Values)
+ continue;
+
+ ValueProfNode **ValueCounters = (ValueProfNode **)DI->Values;
+
+ for (VKI = IPVK_First; VKI <= IPVK_Last; ++VKI)
+ CurrentVSiteCount += DI->NumValueSites[VKI];
+
+ for (i = 0; i < CurrentVSiteCount; ++i) {
+ ValueProfNode *CurrentVNode = ValueCounters[i];
+
+ while (CurrentVNode) {
+ CurrentVNode->VData.Count = 0;
+ CurrentVNode = CurrentVNode->Next;
+ }
+ }
+ }
}
+