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if regrel32 is marked as being outside the procedure frame, and if it has no type info, it seems that compilers generate that case to encode return variables which exist outside a procedure's frame, in which case we can make up the difference by grabbing the return type from the containing procedure type. this does not break existing valid cases, but may not be the fully correct rule.

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This commit is contained in:
Ryan Fleury
2024-12-29 13:46:44 -08:00
parent aa42d12d0f
commit be45100964
1 changed files with 21 additions and 11 deletions
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src/rdi_from_pdb/rdi_from_pdb.c
+21 -11
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@@ -2560,6 +2560,16 @@ ASYNC_WORK_DEF(p2r_symbol_stream_convert_work)
}
}
// TODO(rjf): is this correct?
// rjf: redirect type, if 0, and if outside frame, to the return type of the
// containing procedure
if(local_kind == RDI_LocalKind_Parameter && regrel32->itype == 0 &&
top_scope_node->scope->symbol != 0 &&
top_scope_node->scope->symbol->type != 0)
{
type = top_scope_node->scope->symbol->type->direct_type;
}
// rjf: build local
RDIM_Scope *scope = top_scope_node->scope;
RDIM_Local *local = rdim_scope_push_local(arena, &sym_scopes, scope);
@@ -5004,9 +5014,9 @@ internal B32
p2r_has_symbol_ref(String8 msf_data, String8List symbol_list, MSF_RawStreamTable *st)
{
Temp scratch = scratch_begin(0,0);
B32 has_ref = 0;
String8 dbi_data = msf_data_from_stream_number(scratch.arena, msf_data, st, PDB_FixedStream_Dbi);
PDB_DbiParsed *dbi = pdb_dbi_from_data(scratch.arena, dbi_data);
if(dbi)
@@ -5016,7 +5026,7 @@ p2r_has_symbol_ref(String8 msf_data, String8List symbol_list, MSF_RawStreamTable
if(gsi_parsed)
{
String8 symbol_data = msf_data_from_stream_number(scratch.arena, msf_data, st, dbi->sym_sn);
for(String8Node *symbol_n = symbol_list.first; symbol_n != 0; symbol_n = symbol_n->next)
{
U64 symbol_off = pdb_gsi_symbol_from_string(gsi_parsed, symbol_data, symbol_n->string);
@@ -5028,7 +5038,7 @@ p2r_has_symbol_ref(String8 msf_data, String8List symbol_list, MSF_RawStreamTable
}
}
}
scratch_end(scratch);
return has_ref;
}
@@ -5037,9 +5047,9 @@ internal B32
p2r_has_file_ref(String8 msf_data, String8List file_list, MSF_RawStreamTable *st)
{
Temp scratch = scratch_begin(0,0);
B32 has_ref = 0;
String8 info_data = msf_data_from_stream_number(scratch.arena, msf_data, st, PDB_FixedStream_Info);
PDB_Info *info = pdb_info_from_data(scratch.arena, info_data);
if(info)
@@ -5064,7 +5074,7 @@ p2r_has_file_ref(String8 msf_data, String8List file_list, MSF_RawStreamTable *st
}
}
}
scratch_end(scratch);
return has_ref;
}
@@ -5073,11 +5083,11 @@ internal B32
p2r_has_symbol_or_file_ref(String8 msf_data, String8List symbol_list, String8List file_list)
{
Temp scratch = scratch_begin(0,0);
B32 has_ref = 0;
MSF_RawStreamTable *st = msf_raw_stream_table_from_data(scratch.arena, msf_data);
if(!has_ref && symbol_list.node_count)
{
has_ref = p2r_has_symbol_ref(msf_data, symbol_list, st);
@@ -5087,7 +5097,7 @@ p2r_has_symbol_or_file_ref(String8 msf_data, String8List symbol_list, String8Lis
{
has_ref = p2r_has_file_ref(msf_data, file_list, st);
}
scratch_end(scratch);
return has_ref;
}