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collapse obj directive directive code paths

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This commit is contained in:
Nikita Smith
2025-07-28 20:07:56 -07:00
parent 18f83521e4
commit 92e6069104
4 changed files with 117 additions and 208 deletions
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src/linker/lnk_config.c
+45 -6
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@@ -609,6 +609,7 @@ lnk_parse_alt_name_directive(String8 string, String8 obj_path, String8 lib_path,
if (pair.node_count == 2) {
alt_out->from = pair.first->string;
alt_out->to = pair.last->string;
is_parse_ok = 1;
} else {
lnk_error_cmd_switch(LNK_Error_Cmdl, obj_path, lib_path, LNK_CmdSwitch_AlternateName, "syntax error in \"%S\", expected format \"FROM=TO\"", string);
}
@@ -1163,7 +1164,11 @@ lnk_apply_cmd_option_to_config(Arena *arena, LNK_Config *config, String8 cmd_nam
case LNK_CmdSwitch_DefaultLib: {
String8List default_lib_list = str8_list_copy(arena, &value_strings);
str8_list_concat_in_place(&config->input_default_lib_list, &default_lib_list);
if (obj_path.size) {
str8_list_concat_in_place(&config->input_obj_lib_list, &default_lib_list);
} else {
str8_list_concat_in_place(&config->input_default_lib_list, &default_lib_list);
}
} break;
case LNK_CmdSwitch_Delay: {
@@ -1190,10 +1195,6 @@ lnk_apply_cmd_option_to_config(Arena *arena, LNK_Config *config, String8 cmd_nam
config->file_characteristics |= PE_ImageFileCharacteristic_FILE_DLL;
} break;
case LNK_CmdSwitch_DisallowLib: {
lnk_not_implemented("TODO: how is this switch different from /nodefaultlib?");
} break;
case LNK_CmdSwitch_DynamicBase: {
lnk_cmd_switch_set_flag_16(obj_path, lib_path, cmd_switch, value_strings, &config->dll_characteristics, PE_DllCharacteristic_DYNAMIC_BASE);
} break;
@@ -1217,7 +1218,43 @@ lnk_apply_cmd_option_to_config(Arena *arena, LNK_Config *config, String8 cmd_nam
case LNK_CmdSwitch_Export: {
PE_ExportParse export_parse = {0};
if (lnk_parse_export_directive_ex(arena, value_strings, obj_path, lib_path, &export_parse)) {
pe_export_parse_list_push(arena, &config->export_symbol_list, export_parse);
PE_ExportParseNode *exp_n = 0;
String8 export_name = pe_name_from_export_parse(&export_parse);
hash_table_search_string_raw(config->export_ht, export_name, &exp_n);
if (exp_n == 0) {
// make sure export is defined
if (!export_parse.is_forwarder) {
str8_list_push(arena, &config->include_symbol_list, export_parse.name);
}
// push new export
exp_n = pe_export_parse_list_push(arena, &config->export_symbol_list, export_parse);
hash_table_push_string_raw(arena, config->export_ht, export_name, exp_n);
} else {
B32 is_ambiguous = 1;
PE_ExportParse *extant_export = &exp_n->data;
if (extant_export->alias.size && export_parse.alias.size && !str8_match(extant_export->alias, export_parse.alias, 0)) {
goto report;
}
if (extant_export->ordinal != export_parse.ordinal) {
goto report;
}
is_ambiguous = 0;
if (extant_export->alias.size == 0 && export_parse.alias.size != 0) {
extant_export->alias = export_parse.alias;
}
report:;
if (is_ambiguous) {
lnk_error_with_loc(LNK_Error_IllExport, export_parse.obj_path, export_parse.lib_path, "ambiguous symbol export %S", export_parse.name);
}
}
}
} break;
@@ -1485,6 +1522,7 @@ lnk_apply_cmd_option_to_config(Arena *arena, LNK_Config *config, String8 cmd_nam
str8_list_concat_in_place(&config->natvis_list, &natvis_list);
} break;
case LNK_CmdSwitch_DisallowLib:
case LNK_CmdSwitch_NoDefaultLib: {
if (value_strings.node_count == 0) {
config->no_default_libs = 1;
@@ -1939,6 +1977,7 @@ lnk_config_from_cmd_line(Arena *arena, String8List raw_cmd_line, LNK_CmdLine cmd
config->pdb_hash_type_names = LNK_TypeNameHashMode_None;
config->pdb_hash_type_name_length = 8;
config->data_dir_count = PE_DataDirectoryIndex_COUNT;
config->export_ht = hash_table_init(scratch.arena, max_U16/2);
// process command line switches
for (LNK_CmdOption *cmd = cmd_line.first_option; cmd != 0; cmd = cmd->next) {