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e1ba69ea51
Having the OS/runtime provide a cryptographic entropy source is the right thing to do, and we need it to initialize the default random number generator.
42 lines
960 B
Odin
42 lines
960 B
Odin
#+build freebsd, openbsd, netbsd
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#+private
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package runtime
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foreign import libc "system:c"
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_HAS_RAND_BYTES :: true
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@(default_calling_convention="c")
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foreign libc {
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@(link_name="write")
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_unix_write :: proc(fd: i32, buf: rawptr, size: int) -> int ---
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when ODIN_OS == .NetBSD || ODIN_OS == .OpenBSD {
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@(link_name="__errno") __error :: proc() -> ^i32 ---
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} else {
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__error :: proc() -> ^i32 ---
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}
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arc4random_buf :: proc(buf: [^]byte, nbytes: uint) ---
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}
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_stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
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ret := _unix_write(2, raw_data(data), len(data))
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if ret < len(data) {
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err := __error()
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return int(ret), _OS_Errno(err^ if err != nil else 0)
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}
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return int(ret), 0
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}
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_rand_bytes :: proc "contextless" (dst: []byte) {
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arc4random_buf(raw_data(dst), len(dst))
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}
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_exit :: proc "contextless" (code: int) -> ! {
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@(default_calling_convention="c")
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foreign libc {
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exit :: proc(status: i32) -> ! ---
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}
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exit(i32(code))
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} |