1  const builtin = @import("builtin");
 2  const config = @import("options").config;
 3  
 4  const RiscvBootInfo = @import("riscv/BootInfo.zig");
 5  
 6  /// Info provided at boot.
 7  pub const Info = switch (builtin.cpu.arch) {
 8      .riscv64, .riscv32 => if (config.riscv.standard_args) RiscvBootInfo else RiscvBootInfo.Embedded,
 9      else => @compileError("Unsupported architecture"),
10  };
11  
12  const main = @import("main.zig").main;
13  
14  /// Prepare the correct state for the kernel to run.
15  pub fn setup(info: Info) void {
16      var bss_start = @extern([*]u8, .{ .name = "__bss_start" });
17      const bss_end: usize = @intFromPtr(@extern(*u8, .{ .name = "__bss_end" }));
18  
19      const bss = bss_start[0 .. bss_end - (@as(usize, @intFromPtr(bss_start)))];
20  
21      @memset(bss, 0);
22  
23      main(info) catch |err| @panic(@errorName(err));
24  }