// lib/c/libc — minimal libc bindings. Each declaration is body-less,
// imported from the C side at link time. The @symbol attribute pins
// the linker name; without it, the binding name itself is used.
//
// These declarations cover the small surface the bootstrap wants:
// process exit, three io syscalls, and the malloc/free pair. Higher
// ergonomics live in sibling pure-ww packages.

@symbol("malloc") fn malloc(n: u64) *void;
@symbol("free")   fn free(p: *void) void;
@symbol("calloc") fn calloc(n: u64, sz: u64) *void;

@symbol("read")   fn read(fd: i32, buf: *u8, n: u64) i64;
@symbol("write")  fn write(fd: i32, buf: *u8, n: u64) i64;
@symbol("open")   fn open(path: *u8, flags: i32, mode: i32) i32;
@symbol("close")  fn close(fd: i32) i32;

@symbol("exit")   fn exit(code: i32) void;

@symbol("strlen") fn strlen(s: *u8) u64;
@symbol("memcpy") fn memcpy(dst: *void, src: *void, n: u64) *void;
@symbol("memset") fn memset(p: *void, b: i32, n: u64) *void;