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Fix ICE when using -gcodeview with empty struct

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Empty structs result in empty LF_FIELDLIST types, which are valid, but
we weren't accounting for this and assuming they had to contain
subtypes.

gcc/
	* dwarf2codeview.cc (get_type_num_struct): Fix NULL pointer dereference.
This commit is contained in:
Mark Harmstone 2024-07-26 20:46:33 +01:00
parent 64fbaf36a3
commit 4c88b4e635
1 changed files with 5 additions and 2 deletions
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7
gcc/dwarf2codeview.cc
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@ -2858,8 +2858,11 @@ get_type_num_struct (dw_die_ref type, bool in_struct, bool *is_fwd_ref)
ct2 = ct->next;
ct->next = NULL;
if (ct->lf_fieldlist.last_subtype->kind == LF_INDEX)
ct->lf_fieldlist.last_subtype->lf_index.type_num = last_type;
if (ct->lf_fieldlist.last_subtype
&& ct->lf_fieldlist.last_subtype->kind == LF_INDEX)
{
ct->lf_fieldlist.last_subtype->lf_index.type_num = last_type;
}
add_custom_type (ct);
last_type = ct->num;