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-rw-r--r--src/gallium/auxiliary/util/p_debug_prof.c147
1 files changed, 113 insertions, 34 deletions
diff --git a/src/gallium/auxiliary/util/p_debug_prof.c b/src/gallium/auxiliary/util/p_debug_prof.c
index 958f99c327..69c914c780 100644
--- a/src/gallium/auxiliary/util/p_debug_prof.c
+++ b/src/gallium/auxiliary/util/p_debug_prof.c
@@ -49,12 +49,97 @@
#define PROFILE_FILE_SIZE 4*1024*1024
#define FILE_NAME_SIZE 256
-static WCHAR wFileName[FILE_NAME_SIZE];
+static WCHAR wFileName[FILE_NAME_SIZE] = L"\\??\\c:\\00000000.trace";
static ULONG_PTR iFile = 0;
-static void *pMap = NULL;
-static void *pMapEnd = NULL;
+static BYTE *pMap = NULL;
+static BYTE *pMapBegin = NULL;
+static BYTE *pMapEnd = NULL;
+void __declspec(naked) __cdecl
+debug_profile_close(void)
+{
+ _asm {
+ push eax
+ push ebx
+ push ecx
+ push edx
+ push ebp
+ push edi
+ push esi
+ }
+
+ if(iFile) {
+ EngUnmapFile(iFile);
+ /* Truncate the file */
+ pMap = EngMapFile(wFileName, pMap - pMapBegin, &iFile);
+ if(pMap)
+ EngUnmapFile(iFile);
+ }
+ iFile = 0;
+ pMapBegin = pMapEnd = pMap = NULL;
+
+ _asm {
+ pop esi
+ pop edi
+ pop ebp
+ pop edx
+ pop ecx
+ pop ebx
+ pop eax
+ ret
+ }
+}
+
+
+void __declspec(naked) __cdecl
+debug_profile_open(void)
+{
+ WCHAR *p;
+
+ _asm {
+ push eax
+ push ebx
+ push ecx
+ push edx
+ push ebp
+ push edi
+ push esi
+ }
+
+ debug_profile_close();
+
+ // increment starting from the less significant digit
+ p = &wFileName[14];
+ while(1) {
+ if(*p == '9') {
+ *p-- = '0';
+ }
+ else {
+ *p += 1;
+ break;
+ }
+ }
+
+ pMap = EngMapFile(wFileName, PROFILE_FILE_SIZE, &iFile);
+ if(pMap) {
+ pMapBegin = pMap;
+ pMapEnd = pMap + PROFILE_FILE_SIZE;
+ }
+
+ _asm {
+ pop esi
+ pop edi
+ pop ebp
+ pop edx
+ pop ecx
+ pop ebx
+ pop eax
+ ret
+ }
+}
+
+
/**
* Called at the start of every method or function.
*
@@ -64,11 +149,15 @@ void __declspec(naked) __cdecl
_penter(void) {
_asm {
push ebx
+retry:
mov ebx, [pMap]
test ebx, ebx
jz done
cmp ebx, [pMapEnd]
- je done
+ jne ready
+ call debug_profile_open
+ jmp retry
+ready:
push eax
push edx
mov eax, [esp+12]
@@ -97,11 +186,15 @@ void __declspec(naked) __cdecl
_pexit(void) {
_asm {
push ebx
+retry:
mov ebx, [pMap]
test ebx, ebx
jz done
cmp ebx, [pMapEnd]
- je done
+ jne ready
+ call debug_profile_open
+ jmp retry
+ready:
push eax
push edx
mov eax, [esp+12]
@@ -121,21 +214,13 @@ done:
}
+/**
+ * Reference function for calibration.
+ */
void __declspec(naked)
-__debug_profile_reference1(void) {
- _asm {
- call _penter
- call _pexit
- ret
- }
-}
-
-
-void __declspec(naked)
-__debug_profile_reference2(void) {
+__debug_profile_reference(void) {
_asm {
call _penter
- call __debug_profile_reference1
call _pexit
ret
}
@@ -145,31 +230,25 @@ __debug_profile_reference2(void) {
void
debug_profile_start(void)
{
- static unsigned no = 0;
- char filename[FILE_NAME_SIZE];
- unsigned i;
-
- util_snprintf(filename, sizeof(filename), "\\??\\c:\\%03u.prof", ++no);
- for(i = 0; i < FILE_NAME_SIZE; ++i)
- wFileName[i] = (WCHAR)filename[i];
+ debug_profile_open();
- pMap = EngMapFile(wFileName, PROFILE_FILE_SIZE, &iFile);
if(pMap) {
- pMapEnd = (unsigned char*)pMap + PROFILE_FILE_SIZE;
- /* reference functions for calibration purposes */
- __debug_profile_reference2();
+ unsigned i;
+ for(i = 0; i < 8; ++i) {
+ _asm {
+ call _penter
+ call __debug_profile_reference
+ call _pexit
+ }
+ }
}
}
+
void
debug_profile_stop(void)
{
- if(iFile) {
- EngUnmapFile(iFile);
- /* TODO: truncate file */
- }
- iFile = 0;
- pMapEnd = pMap = NULL;
+ debug_profile_close();
}
#endif /* PROFILE */