Luuk de Gram 3e32a18956
test/link: add test case for function table
Adds 3 linker tests to verify the indirect function table
functionality for importing, exporting and its regular definitions.
2023-01-02 18:36:18 +01:00

64 lines
2.6 KiB
Zig

const std = @import("std");
const Builder = std.build.Builder;
pub fn build(b: *Builder) void {
const mode = b.standardReleaseOptions();
const test_step = b.step("test", "Test");
test_step.dependOn(b.getInstallStep());
const import_table = b.addSharedLibrary("lib", "lib.zig", .unversioned);
import_table.setBuildMode(mode);
import_table.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
import_table.use_llvm = false;
import_table.use_lld = false;
import_table.import_table = true;
const export_table = b.addSharedLibrary("lib", "lib.zig", .unversioned);
export_table.setBuildMode(mode);
export_table.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
export_table.use_llvm = false;
export_table.use_lld = false;
export_table.export_table = true;
const regular_table = b.addSharedLibrary("lib", "lib.zig", .unversioned);
regular_table.setBuildMode(mode);
regular_table.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
regular_table.use_llvm = false;
regular_table.use_lld = false;
const check_import = import_table.checkObject(.wasm);
const check_export = export_table.checkObject(.wasm);
const check_regular = regular_table.checkObject(.wasm);
check_import.checkStart("Section import");
check_import.checkNext("entries 1");
check_import.checkNext("module env");
check_import.checkNext("name __indirect_function_table");
check_import.checkNext("kind table");
check_import.checkNext("type funcref");
check_import.checkNext("min 1"); // 1 function pointer
check_import.checkNotPresent("max"); // when importing, we do not provide a max
check_import.checkNotPresent("Section table"); // we're importing it
check_export.checkStart("Section export");
check_export.checkNext("entries 2");
check_export.checkNext("name __indirect_function_table"); // as per linker specification
check_export.checkNext("kind table");
check_regular.checkStart("Section table");
check_regular.checkNext("entries 1");
check_regular.checkNext("type funcref");
check_regular.checkNext("min 2"); // index starts at 1 & 1 function pointer = 2.
check_regular.checkNext("max 2");
check_regular.checkStart("Section element");
check_regular.checkNext("entries 1");
check_regular.checkNext("table index 0");
check_regular.checkNext("i32.const 1"); // we want to start function indexes at 1
check_regular.checkNext("indexes 1"); // 1 function pointer
test_step.dependOn(&check_import.step);
test_step.dependOn(&check_export.step);
test_step.dependOn(&check_regular.step);
}