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60eabc0eca
These functions are problematic in light of dependencies because they run and install, respectively, for the *owner* package rather than for the *user* package. By removing these functions, the build script is forced to provide the *Build object to associate the new step with, making everything less surprising. Unfortunately, this is a widely breaking change. see #15079
51 lines
1.9 KiB
Zig
51 lines
1.9 KiB
Zig
const std = @import("std");
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pub const requires_stage2 = true;
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pub fn build(b: *std.Build) void {
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const test_step = b.step("test", "Test it");
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b.default_step = test_step;
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add(b, test_step, .Debug);
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add(b, test_step, .ReleaseFast);
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add(b, test_step, .ReleaseSmall);
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add(b, test_step, .ReleaseSafe);
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}
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fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
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const lib = b.addSharedLibrary(.{
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.name = "lib",
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.root_source_file = .{ .path = "lib.zig" },
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.target = .{ .cpu_arch = .wasm32, .os_tag = .freestanding },
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.optimize = optimize,
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});
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lib.use_llvm = false;
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lib.use_lld = false;
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lib.strip = false;
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lib.stack_size = std.wasm.page_size * 2; // set an explicit stack size
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b.installArtifact(lib);
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const check_lib = lib.checkObject();
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// ensure global exists and its initial value is equal to explitic stack size
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check_lib.checkStart("Section global");
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check_lib.checkNext("entries 1");
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check_lib.checkNext("type i32"); // on wasm32 the stack pointer must be i32
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check_lib.checkNext("mutable true"); // must be able to mutate the stack pointer
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check_lib.checkNext("i32.const {stack_pointer}");
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check_lib.checkComputeCompare("stack_pointer", .{ .op = .eq, .value = .{ .literal = lib.stack_size.? } });
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// validate memory section starts after virtual stack
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check_lib.checkNext("Section data");
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check_lib.checkNext("i32.const {data_start}");
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check_lib.checkComputeCompare("data_start", .{ .op = .eq, .value = .{ .variable = "stack_pointer" } });
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// validate the name of the stack pointer
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check_lib.checkStart("Section custom");
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check_lib.checkNext("type global");
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check_lib.checkNext("names 1");
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check_lib.checkNext("index 0");
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check_lib.checkNext("name __stack_pointer");
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test_step.dependOn(&check_lib.step);
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}
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