Merge remote-tracking branch 'stefanha/trivial-patches' into staging

* stefanha/trivial-patches:
  hw/pc.c: Fix converting of ioport_register* to MemoryRegion
  Replace remaining gmtime, localtime by gmtime_r, localtime_r
  savevm: Remove MinGW specific code which is no longer needed
  qga/channel-posix.c: Explicitly include string.h
  configure: Fix comment (copy+paste bug)
  readline: avoid memcpy() of overlapping regions

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

block.c

@@ -3338,11 +3338,7 @@ char *get_human_readable_size(char *buf, int buf_size, int64_t size)
 char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn)
 {
     char buf1[128], date_buf[128], clock_buf[128];
-#ifdef _WIN32
-    struct tm *ptm;
-#else
     struct tm tm;
-#endif
     time_t ti;
     int64_t secs;
 
@@ -3352,15 +3348,9 @@ char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn)
                  "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK");
     } else {
         ti = sn->date_sec;
-#ifdef _WIN32
-        ptm = localtime(&ti);
-        strftime(date_buf, sizeof(date_buf),
-                 "%Y-%m-%d %H:%M:%S", ptm);
-#else
         localtime_r(&ti, &tm);
         strftime(date_buf, sizeof(date_buf),
                  "%Y-%m-%d %H:%M:%S", &tm);
-#endif
         secs = sn->vm_clock_nsec / 1000000000;
         snprintf(clock_buf, sizeof(clock_buf),
                  "%02d:%02d:%02d.%03d",

block/vvfat.c

@@ -529,13 +529,9 @@ static inline uint8_t fat_chksum(const direntry_t* entry)
 /* if return_time==0, this returns the fat_date, else the fat_time */
 static uint16_t fat_datetime(time_t time,int return_time) {
     struct tm* t;
-#ifdef _WIN32
-    t=localtime(&time); /* this is not thread safe */
-#else
     struct tm t1;
     t = &t1;
     localtime_r(&time,t);
-#endif
     if(return_time)
 	return cpu_to_le16((t->tm_sec/2)|(t->tm_min<<5)|(t->tm_hour<<11));
     return cpu_to_le16((t->tm_mday)|((t->tm_mon+1)<<5)|((t->tm_year-80)<<9));

configure

@@ -2705,7 +2705,7 @@ if compile_prog "" "" ; then
   byteswap_h=yes
 fi
 
-# Search for bswap_32 function
+# Search for bswap32 function
 bswap_h=no
 cat > $TMPC << EOF
 #include <sys/endian.h>

hw/omap1.c

@@ -2830,7 +2830,7 @@ static void omap_rtc_tick(void *opaque)
         s->round = 0;
     }
 
-    memcpy(&s->current_tm, localtime(&s->ti), sizeof(s->current_tm));
+    localtime_r(&s->ti, &s->current_tm);
 
     if ((s->interrupts & 0x08) && s->ti == s->alarm_ti) {
         s->status |= 0x40;

hw/pc.c

@@ -103,6 +103,11 @@ static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
 {
 }
 
+static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
+{
+    return 0xffffffffffffffff;
+}
+
 /* MSDOS compatibility mode FPU exception support */
 static qemu_irq ferr_irq;
 
@@ -123,6 +128,11 @@ static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
     qemu_irq_lower(ferr_irq);
 }
 
+static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
+{
+    return 0xffffffffffffffff;
+}
+
 /* TSC handling */
 uint64_t cpu_get_tsc(CPUX86State *env)
 {
@@ -960,6 +970,7 @@ static void cpu_request_exit(void *opaque, int irq, int level)
 
 static const MemoryRegionOps ioport80_io_ops = {
     .write = ioport80_write,
+    .read = ioport80_read,
     .endianness = DEVICE_NATIVE_ENDIAN,
     .impl = {
         .min_access_size = 1,
@@ -969,6 +980,7 @@ static const MemoryRegionOps ioport80_io_ops = {
 
 static const MemoryRegionOps ioportF0_io_ops = {
     .write = ioportF0_write,
+    .read = ioportF0_read,
     .endianness = DEVICE_NATIVE_ENDIAN,
     .impl = {
         .min_access_size = 1,

qga/channel-posix.c

@@ -4,6 +4,7 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <stdlib.h>
+#include <string.h>
 #include "qemu/osdep.h"
 #include "qemu/sockets.h"
 #include "qga/channel.h"

readline.c

@@ -248,8 +248,8 @@ static void readline_hist_add(ReadLineState *rs, const char *cmdline)
     if (idx == READLINE_MAX_CMDS) {
 	/* Need to get one free slot */
 	free(rs->history[0]);
-	memcpy(rs->history, &rs->history[1],
-	       (READLINE_MAX_CMDS - 1) * sizeof(char *));
+	memmove(rs->history, &rs->history[1],
+	        (READLINE_MAX_CMDS - 1) * sizeof(char *));
 	rs->history[READLINE_MAX_CMDS - 1] = NULL;
 	idx = READLINE_MAX_CMDS - 1;
     }

savevm.c

@@ -23,15 +23,6 @@
  */
 
 #include "config-host.h"
-
-#ifndef _WIN32
-#include <arpa/inet.h>
-#endif
-
-#ifdef _WIN32
-#include <windows.h>
-#endif
-
 #include "qemu-common.h"
 #include "hw/hw.h"
 #include "hw/qdev.h"
@@ -2093,13 +2084,8 @@ void do_savevm(Monitor *mon, const QDict *qdict)
     QEMUFile *f;
     int saved_vm_running;
     uint64_t vm_state_size;
-#ifdef _WIN32
-    struct _timeb tb;
-    struct tm *ptm;
-#else
-    struct timeval tv;
+    qemu_timeval tv;
     struct tm tm;
-#endif
     const char *name = qdict_get_try_str(qdict, "name");
 
     /* Verify if there is a device that doesn't support snapshots and is writable */
@@ -2129,15 +2115,9 @@ void do_savevm(Monitor *mon, const QDict *qdict)
     memset(sn, 0, sizeof(*sn));
 
     /* fill auxiliary fields */
-#ifdef _WIN32
-    _ftime(&tb);
-    sn->date_sec = tb.time;
-    sn->date_nsec = tb.millitm * 1000000;
-#else
-    gettimeofday(&tv, NULL);
+    qemu_gettimeofday(&tv);
     sn->date_sec = tv.tv_sec;
     sn->date_nsec = tv.tv_usec * 1000;
-#endif
     sn->vm_clock_nsec = qemu_get_clock_ns(vm_clock);
 
     if (name) {
@@ -2149,15 +2129,9 @@ void do_savevm(Monitor *mon, const QDict *qdict)
             pstrcpy(sn->name, sizeof(sn->name), name);
         }
     } else {
-#ifdef _WIN32
-        time_t t = tb.time;
-        ptm = localtime(&t);
-        strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", ptm);
-#else
         /* cast below needed for OpenBSD where tv_sec is still 'long' */
         localtime_r((const time_t *)&tv.tv_sec, &tm);
         strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", &tm);
-#endif
     }
 
     /* Delete old snapshots of the same name */

vl.c

@@ -448,21 +448,18 @@ StatusInfo *qmp_query_status(Error **errp)
 void qemu_get_timedate(struct tm *tm, int offset)
 {
     time_t ti;
-    struct tm *ret;
 
     time(&ti);
     ti += offset;
     if (rtc_date_offset == -1) {
         if (rtc_utc)
-            ret = gmtime(&ti);
+            gmtime_r(&ti, tm);
         else
-            ret = localtime(&ti);
+            localtime_r(&ti, tm);
     } else {
         ti -= rtc_date_offset;
-        ret = gmtime(&ti);
+        gmtime_r(&ti, tm);
     }
-
-    memcpy(tm, ret, sizeof(struct tm));
 }
 
 int qemu_timedate_diff(struct tm *tm)