qemu-timer: move commonly used timer code to qemu-timer-common

Move timer init functions to a new file, qemu-timer-common.c. Make other
critical timer functions inlined to preserve performance in
qemu-timer.c, also move muldiv64() (used by the inline functions)
to qemu-timer.h.

Adjust block/raw-posix.c and simpletrace.c to use get_clock() directly.
Remove a similar/duplicate definition in qemu-tool.c.

Adjust hw/omap_clk.c to include qemu-timer.h because muldiv64() is used
there.

After this change, tracing can be used also for user code and
simpletrace on Win32.

Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 2 insertions, 8 deletions

diff --git a/simpletrace.c b/simpletrace.c
index b488d5176..9ea0d1f98 100644
--- a/simpletrace.c
+++ b/simpletrace.c
@@ -12,6 +12,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <time.h>
+#include "qemu-timer.h"
 #include "trace.h"
 
 /** Trace file header event ID */
@@ -140,20 +141,13 @@ static void trace(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3,
                   uint64_t x4, uint64_t x5, uint64_t x6)
 {
     TraceRecord *rec = &trace_buf[trace_idx];
-    struct timespec ts;
-
-    /* TODO Windows?  It would be good to use qemu-timer here but that isn't
-     * linked into qemu-tools.  Also we should avoid recursion in the tracing
-     * code, therefore it is useful to be self-contained.
-     */
-    clock_gettime(CLOCK_MONOTONIC, &ts);
 
     if (!trace_list[event].state) {
         return;
     }
 
     rec->event = event;
-    rec->timestamp_ns = ts.tv_sec * 1000000000LL + ts.tv_nsec;
+    rec->timestamp_ns = get_clock();
     rec->x1 = x1;
     rec->x2 = x2;
     rec->x3 = x3;