2020-01-22 12:47:43 +00:00
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const std = @import("std");
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const Builder = std.build.Builder;
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pub fn build(b: *Builder) void {
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b.setPreferredReleaseMode(.ReleaseSmall);
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const mode = b.standardReleaseOptions();
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const elf = b.addExecutable("riscv-zig-blink", "src/main.zig");
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2020-04-26 15:07:55 +00:00
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elf.setTarget(.{
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.os_tag = .freestanding,
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.abi = .none,
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.cpu_arch = .riscv32,
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.cpu_model = .{
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.explicit = &std.Target.riscv.cpu.generic_rv32,
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2020-01-22 12:47:43 +00:00
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},
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});
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elf.setLinkerScriptPath("ld/linker.ld");
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elf.setBuildMode(mode);
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// The ELF file contains debug symbols and can be passed to gdb for remote debugging
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if (b.option(bool, "emit-elf", "Should an ELF file be emitted in the current directory?") orelse false) {
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elf.setOutputDir(".");
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}
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const binary = b.addSystemCommand(&[_][]const u8{
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b.option([]const u8, "objcopy", "objcopy executable to use (defaults to riscv64-unknown-elf-objcopy)") orelse "riscv64-unknown-elf-objcopy",
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"-I",
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"elf32-littleriscv",
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"-O",
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"binary",
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});
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binary.addArtifactArg(elf);
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binary.addArg("riscv-zig-blink.bin");
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b.default_step.dependOn(&binary.step);
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const run_cmd = b.addSystemCommand(&[_][]const u8{
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"dfu-util",
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"-D",
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"riscv-zig-blink.bin",
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});
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run_cmd.step.dependOn(&binary.step);
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const run_step = b.step("run", "Upload and run the app on your FOMU");
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run_step.dependOn(&run_cmd.step);
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}
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