ed/raddebugger
1
0
Fork 0
mirror of https://github.com/Ed94/raddebugger.git synced 2026-06-18 18:12:23 -07:00
Code Issues Packages Projects Releases Wiki Activity

fix crash when relocation points to an undefined section symbol

Browse Source
This commit is contained in:
Nikita Smith
2025-08-07 22:40:14 -07:00
parent 4f6f9d61ed
commit 137eb6403a
1 changed files with 16 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/linker/lnk.c
+16 -12
View File
@@ -1101,7 +1101,7 @@ lnk_find_refs(Arena *arena,
}
//
// walk relocations and unset the remove flag on visited sections
// walk relocations and mark referenced sections as live
//
for (; task_stack; ) {
struct Task *t = task_stack; SLLStackPop(task_stack);
@@ -1160,7 +1160,6 @@ lnk_find_refs(Arena *arena,
default: { NotImplemented; } break;
}
member_symbol = lnk_symbol_table_search(symtab, LNK_SymbolScope_Lib, ref_parsed.name);
if (member_symbol) {
lnk_queue_lib_member_input(arena, config, member_symbol, imports_out, objs_out);
MemoryZeroStruct(&ref_symbol);
@@ -1173,18 +1172,23 @@ lnk_find_refs(Arena *arena,
}
}
else if (ref_interp == COFF_SymbolValueInterp_Undefined) {
LNK_Symbol *defn = lnk_symbol_table_search(symtab, LNK_SymbolScope_Defined, ref_parsed.name);
COFF_ParsedSymbol defn_parsed = lnk_parsed_symbol_from_defined(defn);
COFF_SymbolValueInterpType defn_interp = coff_interp_from_parsed_symbol(defn_parsed);
if (defn_interp == COFF_SymbolValueInterp_Undefined) {
LNK_Symbol *member_symbol = lnk_symbol_table_search(symtab, LNK_SymbolScope_Lib, ref_parsed.name);
if (member_symbol) {
lnk_queue_lib_member_input(arena, config, member_symbol, imports_out, objs_out);
MemoryZeroStruct(&ref_symbol);
if (ref_parsed.storage_class == COFF_SymStorageClass_External) {
LNK_Symbol *defn = lnk_symbol_table_search(symtab, LNK_SymbolScope_Defined, ref_parsed.name);
COFF_ParsedSymbol defn_parsed = lnk_parsed_symbol_from_defined(defn);
COFF_SymbolValueInterpType defn_interp = coff_interp_from_parsed_symbol(defn_parsed);
if (defn_interp == COFF_SymbolValueInterp_Undefined) {
LNK_Symbol *member_symbol = lnk_symbol_table_search(symtab, LNK_SymbolScope_Lib, ref_parsed.name);
if (member_symbol) {
lnk_queue_lib_member_input(arena, config, member_symbol, imports_out, objs_out);
}
break;
} else {
ref_symbol = defn->u.defined;
}
MemoryZeroStruct(&ref_symbol);
break;
} else {
ref_symbol = defn->u.defined;
break;
}
} else if (ref_interp == COFF_SymbolValueInterp_Regular) {
LNK_Symbol *symlink = lnk_obj_get_comdat_symlink(ref_symbol.obj, ref_parsed.section_number);