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a working prototype

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This commit is contained in:
Folkert 2021-08-15 23:20:05 +02:00
parent d8e38ef2ac
commit a0a0896622
11 changed files with 443 additions and 144 deletions
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12
compiler/builtins/bitcode/src/main.zig
View file

@ -101,6 +101,14 @@ comptime {
exportStrFn(str.fromUtf8RangeC, "from_utf8_range");
}
// Utils
const utils = @import("utils.zig");
comptime {
exportUtilsFn(utils.test_panic, "test_panic");
@export(utils.panic, .{ .name = "roc_builtins.utils." ++ "panic", .linkage = .Weak });
}
// Export helpers - Must be run inside a comptime
fn exportBuiltinFn(comptime func: anytype, comptime func_name: []const u8) void {
@export(func, .{ .name = "roc_builtins." ++ func_name, .linkage = .Strong });
@ -121,6 +129,10 @@ fn exportDecFn(comptime func: anytype, comptime func_name: []const u8) void {
exportBuiltinFn(func, "dec." ++ func_name);
}
fn exportUtilsFn(comptime func: anytype, comptime func_name: []const u8) void {
exportBuiltinFn(func, "utils." ++ func_name);
}
// Custom panic function, as builtin Zig version errors during LLVM verification
pub fn panic(message: []const u8, stacktrace: ?*std.builtin.StackTrace) noreturn {
std.debug.print("{s}: {?}", .{ message, stacktrace });

13
compiler/builtins/bitcode/src/utils.zig
View file

@ -62,10 +62,21 @@ pub fn dealloc(c_ptr: [*]u8, alignment: u32) void {
}
// must export this explicitly because right now it is not used from zig code
pub export fn panic(c_ptr: *c_void, alignment: u32) void {
pub fn panic(c_ptr: *c_void, alignment: u32) callconv(.C) void {
return @call(.{ .modifier = always_inline }, roc_panic, .{ c_ptr, alignment });
}
// indirection because otherwise zig creats an alias to the panic function which our LLVM code
// does not know how to deal with
pub fn test_panic(c_ptr: *c_void, alignment: u32) callconv(.C) void {
const cstr = @ptrCast([*:0]u8, c_ptr);
// const stderr = std.io.getStdErr().writer();
// stderr.print("Roc panicked: {s}!\n", .{cstr}) catch unreachable;
std.c.exit(1);
}
pub const Inc = fn (?[*]u8) callconv(.C) void;
pub const IncN = fn (?[*]u8, u64) callconv(.C) void;
pub const Dec = fn (?[*]u8) callconv(.C) void;