nativity/bootstrap/main.zig
David Gonzalez Martin dfcda18a70 Improve clang integration
LLVM can now be compiled with nat
2024-03-27 16:51:20 -06:00

113 lines
4.0 KiB
Zig

const std = @import("std");
const Allocator = std.mem.Allocator;
const assert = std.debug.assert;
const Compilation = @import("Compilation.zig");
pub const panic = Compilation.panic;
const library = @import("library.zig");
const byte_equal = library.byte_equal;
const MyAllocator = library.MyAllocator;
const PageAllocator = library.PageAllocator;
const env_detecting_libc_paths = "NATIVITY_IS_DETECTING_LIBC_PATHS";
test {
_ = library;
}
fn todo() noreturn {
@setCold(true);
@panic("TODO");
}
var my_allocator = PageAllocator{};
// pub export fn main(c_argc: c_int, c_argv: [*][*:0]c_char, c_envp: [*:null]?[*:0]c_char) callconv(.C) c_int {
// _ = c_envp; // autofix
// // const argument_count: usize = @intCast(c_argc);
// // const argument_values: [*][*:0]u8 = @ptrCast(c_argv);
// if (entry_point(arguments)) |_| {
// return 0;
// } else |err| {
// const print_stack_trace = @import("configuration").print_stack_trace;
// switch (print_stack_trace) {
// true => if (@errorReturnTrace()) |trace| {
// std.debug.dumpStackTrace(trace.*);
// },
// false => {
// const error_name: []const u8 = @errorName(err);
// Compilation.write(.panic, "Error: ") catch {};
// Compilation.write(.panic, error_name) catch {};
// Compilation.write(.panic, "\n") catch {};
// },
// }
//
// return 1;
// }
// }
pub fn main() !void {
var arena_allocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
const allocator = arena_allocator.allocator();
var arg_it = std.process.ArgIterator.init();
var args = library.UnpinnedArray([]const u8){};
const context = try Compilation.createContext(allocator, &my_allocator.allocator);
while (arg_it.next()) |arg| {
try args.append(context.my_allocator, arg);
}
const arguments = args.slice();
const debug_args = true;
if (debug_args) {
assert(arguments.len > 0);
const home_dir = std.posix.getenv("HOME") orelse unreachable;
const timestamp = std.time.milliTimestamp();
var argument_list = std.ArrayList(u8).init(std.heap.page_allocator);
for (arguments) |arg| {
argument_list.appendSlice(arg) catch {};
argument_list.append(' ') catch {};
}
argument_list.append('\n') catch {};
std.fs.cwd().writeFile(std.fmt.allocPrint(std.heap.page_allocator, "{s}/dev/nativity/nat/invocation_log_{}", .{home_dir, timestamp}) catch unreachable, argument_list.items) catch {};
}
if (arguments.len <= 1) {
return error.InvalidInput;
}
if (std.process.can_execv and std.posix.getenvZ(env_detecting_libc_paths) != null) {
todo();
}
const command = arguments[1];
const command_arguments = arguments[2..];
if (byte_equal(command, "build")) {
try Compilation.compileBuildExecutable(context, command_arguments);
} else if (byte_equal(command, "clang") or byte_equal(command, "-cc1") or byte_equal(command, "-cc1as")) {
const exit_code = try Compilation.clangMain(allocator, arguments);
std.process.exit(exit_code);
} else if (byte_equal(command, "cc")) {
try Compilation.compileCSourceFile(context, command_arguments, .c);
} else if (byte_equal(command, "c++")) {
try Compilation.compileCSourceFile(context, command_arguments, .cpp);
} else if (byte_equal(command, "exe")) {
try Compilation.buildExecutable(context, command_arguments, .{
.is_test = false,
});
} else if (byte_equal(command, "lib")) {
todo();
} else if (byte_equal(command, "obj")) {
todo();
} else if (byte_equal(command, "test")) {
try Compilation.buildExecutable(context, command_arguments, .{
.is_test = true,
});
} else {
todo();
}
}
pub const std_options = std.Options{
.enable_segfault_handler = false,
};