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Merge branch 'wip/kalev/gcc-11' into 'master'

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Avoid diagnostics for gcc-11 false positive out of bounds accesses

See merge request GNOME/gtk!3064
This commit is contained in:
Matthias Clasen 2021-01-11 22:04:52 +00:00
commit 5044031b53
2 changed files with 21 additions and 0 deletions
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14
gtk/gtktextchild.c
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@ -169,6 +169,12 @@ const GtkTextLineSegmentClass gtk_text_paintable_type = {
GtkTextLineSegment *
_gtk_paintable_segment_new (GdkPaintable *paintable)
{
/* gcc-11 issues a diagnostic here because the size allocated
for SEG does not cover the entire size of a GtkTextLineSegment
and gcc has no way to know that the union will only be used
for limited types and the additional space is not needed. */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
GtkTextLineSegment *seg;
guint flags;
@ -204,6 +210,7 @@ _gtk_paintable_segment_new (GdkPaintable *paintable)
g_object_ref (paintable);
return seg;
#pragma GCC diagnostic pop
}
@ -280,6 +287,12 @@ const GtkTextLineSegmentClass gtk_text_child_type = {
GtkTextLineSegment *
_gtk_widget_segment_new (GtkTextChildAnchor *anchor)
{
/* gcc-11 issues a diagnostic here because the size allocated
for SEG does not cover the entire size of a GtkTextLineSegment
and gcc has no way to know that the union will only be used
for limited types and the additional space is not needed. */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
GtkTextLineSegment *seg;
seg = g_slice_alloc (WIDGET_SEG_SIZE);
@ -303,6 +316,7 @@ _gtk_widget_segment_new (GtkTextChildAnchor *anchor)
g_object_ref (anchor);
return seg;
#pragma GCC diagnostic pop
}
void

7
gtk/gtktextsegment.c
View File

@ -425,6 +425,12 @@ char_segment_check_func (GtkTextLineSegment *segPtr, GtkTextLine *line)
GtkTextLineSegment*
_gtk_toggle_segment_new (GtkTextTagInfo *info, gboolean on)
{
/* gcc-11 issues a diagnostic here because the size allocated
for SEG does not cover the entire size of a GtkTextLineSegment
and gcc has no way to know that the union will only be used
for limited types and the additional space is not needed. */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
GtkTextLineSegment *seg;
seg = g_slice_alloc (TSEG_SIZE);
@ -440,6 +446,7 @@ _gtk_toggle_segment_new (GtkTextTagInfo *info, gboolean on)
seg->body.toggle.inNodeCounts = 0;
return seg;
#pragma GCC diagnostic pop
}
void