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memory: Move FlatView allocation to a helper
This moves a FlatView allocation and initialization to a helper. While we are nere, replace g_new with g_new0 to not to bother if we add new fields in the future. This should cause no behavioural change. Backports commit de7e6815b84c797cbda56dc96fcacaf5f37d3a20 from qemu
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@ -288,12 +288,14 @@ static bool flatrange_equal(FlatRange *a, FlatRange *b)
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&& a->readonly == b->readonly;
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}
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static void flatview_init(FlatView *view)
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static FlatView *flatview_new(void)
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{
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FlatView *view;
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view = g_new0(FlatView, 1);
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view->ref = 1;
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view->ranges = NULL;
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view->nr = 0;
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view->nr_allocated = 0;
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return view;
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}
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/* Insert a range into a given position. Caller is responsible for maintaining
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@ -664,8 +666,7 @@ static FlatView *generate_memory_topology(MemoryRegion *mr)
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{
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FlatView *view;
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view = g_new(FlatView, 1);
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flatview_init(view);
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view = flatview_new();
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if (mr) {
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render_memory_region(view, mr, int128_zero(),
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@ -1804,8 +1805,7 @@ void address_space_init(struct uc_struct *uc, AddressSpace *as, MemoryRegion *ro
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as->uc = uc;
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as->root = root;
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as->malloced = false;
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as->current_map = g_new(FlatView, 1);
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flatview_init(as->current_map);
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as->current_map = flatview_new();
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QTAILQ_INIT(&as->listeners);
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QTAILQ_INSERT_TAIL(&uc->address_spaces, as, address_spaces_link);
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as->name = g_strdup(name ? name : "anonymous");
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