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Add intrinsics.c_var_*

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This commit is contained in:
gingerBill
2026-04-28 15:00:53 +01:00
parent bb291cfcd0
commit 7b97530443
8 changed files with 282 additions and 9 deletions
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66
src/checker.cpp
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@@ -1449,6 +1449,72 @@ gb_internal void init_universal(void) {
t_objc_instancetype = add_global_type_name(intrinsics_pkg->scope, str_lit("objc_instancetype"), t_objc_id);
}
// intrinsics types for C stuff
{
Scope *scope = create_scope(nullptr, nullptr);
auto dummy_field = [](Scope *scope, Type *type, i32 field_index, char const *name = nullptr) -> Entity * {
auto token = blank_token;
if (name) {
token.string = make_string_c(name);
}
return alloc_entity_field(scope, token, type, false, 0, EntityState_Resolved);
};
auto fields = array_make<Entity *>(permanent_allocator(), 0, 8);
switch (build_context.metrics.arch) {
case TargetArch_amd64:
switch (build_context.metrics.os) {
case TargetOs_freestanding:
/*check*/
case TargetOs_linux:
case TargetOs_freebsd:
case TargetOs_netbsd:
case TargetOs_openbsd:
array_add(&fields, dummy_field(scope, t_u32, 0, "gp_offset"));
array_add(&fields, dummy_field(scope, t_u32, 1, "fp_offset"));
array_add(&fields, dummy_field(scope, t_rawptr, 2, "overflow_arg_area"));
array_add(&fields, dummy_field(scope, t_rawptr, 3, "reg_save_area"));
break;
}
break;
case TargetArch_arm64:
switch (build_context.metrics.os) {
case TargetOs_darwin:
// AARCH64 architecture is different to other arm64 platforms
array_add(&fields, dummy_field(scope, t_rawptr, 0));
break;
case TargetOs_freestanding:
case TargetOs_linux:
case TargetOs_freebsd:
case TargetOs_netbsd:
case TargetOs_openbsd: // Not sure if this is correct
array_add(&fields, dummy_field(scope, t_rawptr, 0, "__stack"));
array_add(&fields, dummy_field(scope, t_rawptr, 1, "__gr_top"));
array_add(&fields, dummy_field(scope, t_rawptr, 2, "__vr_top"));
array_add(&fields, dummy_field(scope, t_i32, 3, "__gr_offs"));
array_add(&fields, dummy_field(scope, t_i32, 4, "__vr_offs"));
break;
}
break;
}
if (fields.count == 0) {
array_add(&fields, dummy_field(scope, t_rawptr, 0));
}
Type *va_list_struct = alloc_type_struct_complete();
va_list_struct->Struct.scope = scope;
va_list_struct->Struct.fields = slice_from_array(fields);
GB_ASSERT(type_size_of(va_list_struct) > 0);
t_c_va_list = add_global_type_name(intrinsics_pkg->scope, str_lit("c_va_list"), va_list_struct);
t_c_va_list_ptr = alloc_type_pointer(t_c_va_list);
}
}