0746048a00
This also removed the need for `@intCase()` Also move the making directories and copying to a script to the build is simpler. Install qemu earler Added chmod +x Fixed copy elf Added missing switch for qemu binary Spelling Make makeiso.sh executable No longer chmod makeiso.sh Use the cache root to set the output directory
63 lines
2.5 KiB
Zig
63 lines
2.5 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const is_test = builtin.is_test;
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const build_options = @import("build_options");
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const mock_path = build_options.mock_path;
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const arch = @import("arch.zig").internals;
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const multiboot = @import("multiboot.zig");
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const tty = @import("tty.zig");
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const vga = @import("vga.zig");
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const log = @import("log.zig");
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const serial = @import("serial.zig");
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const pmm = @import("pmm.zig");
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const mem = if (is_test) @import(mock_path ++ "mem_mock.zig") else @import("mem.zig");
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const panic_root = if (is_test) @import(mock_path ++ "panic_mock.zig") else @import("panic.zig");
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const options = @import("build_options");
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comptime {
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if (!is_test) {
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switch (builtin.arch) {
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.i386 => _ = @import("arch/x86/boot.zig"),
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else => {},
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}
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}
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}
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// This is for unit testing as we need to export KERNEL_ADDR_OFFSET as it is no longer available
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// from the linker script
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export var KERNEL_ADDR_OFFSET: u32 = if (builtin.is_test) 0xC0000000 else undefined;
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// Just call the panic function, as this need to be in the root source file
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pub fn panic(msg: []const u8, error_return_trace: ?*builtin.StackTrace) noreturn {
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@setCold(true);
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panic_root.panic(error_return_trace, "{}", .{msg});
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}
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export fn kmain(mb_info: *multiboot.multiboot_info_t, mb_magic: u32) void {
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if (mb_magic == multiboot.MULTIBOOT_BOOTLOADER_MAGIC) {
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// Booted with compatible bootloader
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serial.init(serial.DEFAULT_BAUDRATE, serial.Port.COM1) catch |e| {
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panic_root.panic(@errorReturnTrace(), "Failed to initialise serial: {}", .{e});
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};
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if (build_options.rt_test)
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log.runtimeTests();
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const mem_profile = mem.init(mb_info);
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var buffer = mem_profile.vaddr_end[0..mem_profile.fixed_alloc_size];
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var fixed_allocator = std.heap.FixedBufferAllocator.init(buffer);
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pmm.init(&mem_profile, &fixed_allocator.allocator);
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log.logInfo("Init arch " ++ @tagName(builtin.arch) ++ "\n", .{});
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arch.init(mb_info, &mem_profile, &fixed_allocator.allocator);
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log.logInfo("Arch init done\n", .{});
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panic_root.init(&mem_profile, &fixed_allocator.allocator) catch |e| {
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panic_root.panic(@errorReturnTrace(), "Failed to initialise panic: {}", .{e});
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};
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vga.init();
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tty.init();
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log.logInfo("Init done\n", .{});
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tty.print("Hello Pluto from kernel :)\n", .{});
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// The panic runtime tests must run last as they never return
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if (options.rt_test) panic_root.runtimeTests();
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}
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}
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