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| author | Mark Harmstone <mark@harmstone.com> | 2024-07-26 20:46:33 +0100 |
|---|---|---|
| committer | Mark Harmstone <mark@harmstone.com> | 2024-08-01 02:36:54 +0100 |
| commit | 4c88b4e635f6025a897c5d059628e63ec5ba948f (patch) | |
| tree | 4358c34733a9784df98b0ca6f19acdd2cf0a5fc7 /gcc/dwarf2codeview.cc | |
| parent | 64fbaf36a3834c394422cdf86985c7cc45179925 (diff) | |
| download | gcc-4c88b4e635f6025a897c5d059628e63ec5ba948f.zip gcc-4c88b4e635f6025a897c5d059628e63ec5ba948f.tar.gz gcc-4c88b4e635f6025a897c5d059628e63ec5ba948f.tar.bz2 | |
Fix ICE when using -gcodeview with empty struct
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.
Diffstat (limited to 'gcc/dwarf2codeview.cc')
| -rw-r--r-- | gcc/dwarf2codeview.cc | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/dwarf2codeview.cc b/gcc/dwarf2codeview.cc index b16c696..470cbae 100644 --- a/gcc/dwarf2codeview.cc +++ b/gcc/dwarf2codeview.cc @@ -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; |