linux-user: Fix loaddr computation for some elf files

[qmiga/qemu.git] / block / null.c

diff --git a/block/null.c b/block/null.c
index d442d3e..4808704 100644 (file)
--- a/block/null.c
+++ b/block/null.c
@@ -14,8 +14,11 @@
 #include "qapi/error.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qstring.h"
+#include "qemu/module.h"
 #include "qemu/option.h"
+#include "block/block-io.h"
 #include "block/block_int.h"
+#include "sysemu/replay.h"
 
 #define NULL_OPT_LATENCY "latency-ns"
 #define NULL_OPT_ZEROES  "read-zeroes"
@@ -97,7 +100,7 @@ static int null_file_open(BlockDriverState *bs, QDict *options, int flags,
     return ret;
 }
 
-static int64_t null_getlength(BlockDriverState *bs)
+static int64_t coroutine_fn null_co_getlength(BlockDriverState *bs)
 {
     BDRVNullState *s = bs->opaque;
     return s->length;
@@ -114,8 +117,9 @@ static coroutine_fn int null_co_common(BlockDriverState *bs)
 }
 
 static coroutine_fn int null_co_preadv(BlockDriverState *bs,
-                                       uint64_t offset, uint64_t bytes,
-                                       QEMUIOVector *qiov, int flags)
+                                       int64_t offset, int64_t bytes,
+                                       QEMUIOVector *qiov,
+                                       BdrvRequestFlags flags)
 {
     BDRVNullState *s = bs->opaque;
 
@@ -127,8 +131,9 @@ static coroutine_fn int null_co_preadv(BlockDriverState *bs,
 }
 
 static coroutine_fn int null_co_pwritev(BlockDriverState *bs,
-                                        uint64_t offset, uint64_t bytes,
-                                        QEMUIOVector *qiov, int flags)
+                                        int64_t offset, int64_t bytes,
+                                        QEMUIOVector *qiov,
+                                        BdrvRequestFlags flags)
 {
     return null_co_common(bs);
 }
@@ -178,14 +183,15 @@ static inline BlockAIOCB *null_aio_common(BlockDriverState *bs,
         timer_mod_ns(&acb->timer,
                      qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + s->latency_ns);
     } else {
-        aio_bh_schedule_oneshot(bdrv_get_aio_context(bs), null_bh_cb, acb);
+        replay_bh_schedule_oneshot_event(bdrv_get_aio_context(bs),
+                                         null_bh_cb, acb);
     }
     return &acb->common;
 }
 
 static BlockAIOCB *null_aio_preadv(BlockDriverState *bs,
-                                   uint64_t offset, uint64_t bytes,
-                                   QEMUIOVector *qiov, int flags,
+                                   int64_t offset, int64_t bytes,
+                                   QEMUIOVector *qiov, BdrvRequestFlags flags,
                                    BlockCompletionFunc *cb,
                                    void *opaque)
 {
@@ -199,8 +205,8 @@ static BlockAIOCB *null_aio_preadv(BlockDriverState *bs,
 }
 
 static BlockAIOCB *null_aio_pwritev(BlockDriverState *bs,
-                                    uint64_t offset, uint64_t bytes,
-                                    QEMUIOVector *qiov, int flags,
+                                    int64_t offset, int64_t bytes,
+                                    QEMUIOVector *qiov, BdrvRequestFlags flags,
                                     BlockCompletionFunc *cb,
                                     void *opaque)
 {
@@ -239,19 +245,39 @@ static int coroutine_fn null_co_block_status(BlockDriverState *bs,
     return ret;
 }
 
-static void null_refresh_filename(BlockDriverState *bs, QDict *opts)
+static void null_refresh_filename(BlockDriverState *bs)
 {
-    qdict_del(opts, "filename");
-
-    if (!qdict_size(opts)) {
-        snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s://",
-                 bs->drv->format_name);
+    const QDictEntry *e;
+
+    for (e = qdict_first(bs->full_open_options); e;
+         e = qdict_next(bs->full_open_options, e))
+    {
+        /* These options can be ignored */
+        if (strcmp(qdict_entry_key(e), "filename") &&
+            strcmp(qdict_entry_key(e), "driver") &&
+            strcmp(qdict_entry_key(e), NULL_OPT_LATENCY))
+        {
+            return;
+        }
     }
 
-    qdict_put_str(opts, "driver", bs->drv->format_name);
-    bs->full_open_options = qobject_ref(opts);
+    snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s://",
+             bs->drv->format_name);
 }
 
+static int64_t coroutine_fn
+null_co_get_allocated_file_size(BlockDriverState *bs)
+{
+    return 0;
+}
+
+static const char *const null_strong_runtime_opts[] = {
+    BLOCK_OPT_SIZE,
+    NULL_OPT_ZEROES,
+
+    NULL
+};
+
 static BlockDriver bdrv_null_co = {
     .format_name            = "null-co",
     .protocol_name          = "null-co",
@@ -259,7 +285,8 @@ static BlockDriver bdrv_null_co = {
 
     .bdrv_file_open         = null_file_open,
     .bdrv_parse_filename    = null_co_parse_filename,
-    .bdrv_getlength         = null_getlength,
+    .bdrv_co_getlength      = null_co_getlength,
+    .bdrv_co_get_allocated_file_size = null_co_get_allocated_file_size,
 
     .bdrv_co_preadv         = null_co_preadv,
     .bdrv_co_pwritev        = null_co_pwritev,
@@ -269,6 +296,7 @@ static BlockDriver bdrv_null_co = {
     .bdrv_co_block_status   = null_co_block_status,
 
     .bdrv_refresh_filename  = null_refresh_filename,
+    .strong_runtime_opts    = null_strong_runtime_opts,
 };
 
 static BlockDriver bdrv_null_aio = {
@@ -278,7 +306,8 @@ static BlockDriver bdrv_null_aio = {
 
     .bdrv_file_open         = null_file_open,
     .bdrv_parse_filename    = null_aio_parse_filename,
-    .bdrv_getlength         = null_getlength,
+    .bdrv_co_getlength      = null_co_getlength,
+    .bdrv_co_get_allocated_file_size = null_co_get_allocated_file_size,
 
     .bdrv_aio_preadv        = null_aio_preadv,
     .bdrv_aio_pwritev       = null_aio_pwritev,
@@ -288,6 +317,7 @@ static BlockDriver bdrv_null_aio = {
     .bdrv_co_block_status   = null_co_block_status,
 
     .bdrv_refresh_filename  = null_refresh_filename,
+    .strong_runtime_opts    = null_strong_runtime_opts,
 };
 
 static void bdrv_null_init(void)