Implement new sys/unix package

examples/all/all_linux.odin

@@ -0,0 +1,6 @@
+//+build linux
+package all
+
+import linux "core:sys/linux"
+
+_ :: linux

examples/all/all_vendor.odin

@@ -39,10 +39,13 @@ import TTF        "vendor:sdl2/ttf"
 
 import vk         "vendor:vulkan"
 
-import NS         "vendor:darwin/Foundation"
-import MTL        "vendor:darwin/Metal"
-import MTK        "vendor:darwin/MetalKit"
-import CA         "vendor:darwin/QuartzCore"
+// NOTE(flysand): Since conditional imports are disabled for now I'll have to just disable these
+// when ODIN_OS == "darwin" {
+//     import NS         "vendor:darwin/Foundation"
+//     import MTL        "vendor:darwin/Metal"
+//     import MTK        "vendor:darwin/MetalKit"
+//     import CA         "vendor:darwin/QuartzCore"
+// }
 
 // NOTE(bill): only one can be checked at a time
 import lua_5_4    "vendor:lua/5.4"
@@ -91,10 +94,10 @@ _ :: TTF
 
 _ :: vk
 
-_ :: NS
-_ :: MTL
-_ :: MTK
-_ :: CA
+// _ :: NS
+// _ :: MTL
+// _ :: MTK
+// _ :: CA
 
 _ :: lua_5_4
 

examples/test-freestanding/main.odin

@@ -1,30 +0,0 @@
-package main
-
-import "core:intrinsics"
-
-SUS_exit :: uintptr(60)
-SUS_write ::uintptr(1)
-STDOUT_FILENO :: int(1)
-
-sus_write :: proc "contextless" (fd: int, buf: cstring, size: uint) -> int {
-    return int(intrinsics.syscall(
-        SUS_write,
-        cast(uintptr) fd,
-        cast(uintptr) cast(rawptr) buf,
-        cast(uintptr) size
-    ))
-}
-
-@(link_name = "sussy_baka")
-sus_exit :: proc "contextless" (code: $T)->! {
-    intrinsics.syscall(SUS_exit, uintptr(code))
-    unreachable()
-}
-
-sus :: proc {sus_write, sus_exit}
-
-@(link_name="_start", export) _start :: proc "c" ()->! {
-    str :: cstring("Hello, world!\n")
-    sus_write(STDOUT_FILENO, str, uint(14));
-    sus_exit(0)
-}