Add SGX C types.

Author: gnzlbg

src/lib.rs

@@ -120,8 +120,6 @@
     )
 )]
 #![cfg_attr(not(feature = "use_std"), no_std)]
-// FIXME: this crate is empty for wasm32-unknown-unknown
-#![cfg(not(all(target_arch = "wasm32", not(target_os = "emscripten"))))]
 
 #[cfg(all(not(cross_platform_docs), feature = "use_std"))]
 extern crate std as core;
@@ -131,206 +129,50 @@ mod macros;
 
 mod dox;
 
-cfg_if! {
-    if #[cfg(core_cvoid)] {
-        pub use core::ffi::c_void;
-    } else {
-        // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help enable
-        // more optimization opportunities around it recognizing things like
-        // malloc/free.
-        #[repr(u8)]
-        pub enum c_void {
-            // Two dummy variants so the #[repr] attribute can be used.
-            #[doc(hidden)]
-            __variant1,
-            #[doc(hidden)]
-            __variant2,
-        }
-    }
-}
-
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
-pub type c_schar = i8;
-pub type c_uchar = u8;
-pub type c_short = i16;
-pub type c_ushort = u16;
-pub type c_int = i32;
-pub type c_uint = u32;
-pub type c_float = f32;
-pub type c_double = f64;
-pub type c_longlong = i64;
-pub type c_ulonglong = u64;
-pub type intmax_t = i64;
-pub type uintmax_t = u64;
-
-pub type size_t = usize;
-pub type ptrdiff_t = isize;
-pub type intptr_t = isize;
-pub type uintptr_t = usize;
-pub type ssize_t = isize;
-
-pub enum FILE {}
-pub enum fpos_t {} // TODO: fill this out with a struct
-
-pub const INT_MIN: c_int = -2147483648;
-pub const INT_MAX: c_int = 2147483647;
-
-extern "C" {
-    pub fn isalnum(c: c_int) -> c_int;
-    pub fn isalpha(c: c_int) -> c_int;
-    pub fn iscntrl(c: c_int) -> c_int;
-    pub fn isdigit(c: c_int) -> c_int;
-    pub fn isgraph(c: c_int) -> c_int;
-    pub fn islower(c: c_int) -> c_int;
-    pub fn isprint(c: c_int) -> c_int;
-    pub fn ispunct(c: c_int) -> c_int;
-    pub fn isspace(c: c_int) -> c_int;
-    pub fn isupper(c: c_int) -> c_int;
-    pub fn isxdigit(c: c_int) -> c_int;
-    pub fn tolower(c: c_int) -> c_int;
-    pub fn toupper(c: c_int) -> c_int;
-
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "fopen$UNIX2003"
-    )]
-    pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "freopen$UNIX2003"
-    )]
-    pub fn freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE;
-    pub fn fflush(file: *mut FILE) -> c_int;
-    pub fn fclose(file: *mut FILE) -> c_int;
-    pub fn remove(filename: *const c_char) -> c_int;
-    pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;
-    pub fn tmpfile() -> *mut FILE;
-    pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int;
-    pub fn setbuf(stream: *mut FILE, buf: *mut c_char);
-    pub fn getchar() -> c_int;
-    pub fn putchar(c: c_int) -> c_int;
-    pub fn fgetc(stream: *mut FILE) -> c_int;
-    pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;
-    pub fn fputc(c: c_int, stream: *mut FILE) -> c_int;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "fputs$UNIX2003"
-    )]
-    pub fn fputs(s: *const c_char, stream: *mut FILE) -> c_int;
-    pub fn puts(s: *const c_char) -> c_int;
-    pub fn ungetc(c: c_int, stream: *mut FILE) -> c_int;
-    pub fn fread(ptr: *mut c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "fwrite$UNIX2003"
-    )]
-    pub fn fwrite(ptr: *const c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
-    pub fn fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int;
-    pub fn ftell(stream: *mut FILE) -> c_long;
-    pub fn rewind(stream: *mut FILE);
-    #[cfg_attr(target_os = "netbsd", link_name = "__fgetpos50")]
-    pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__fsetpos50")]
-    pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int;
-    pub fn feof(stream: *mut FILE) -> c_int;
-    pub fn ferror(stream: *mut FILE) -> c_int;
-    pub fn perror(s: *const c_char);
-    pub fn atoi(s: *const c_char) -> c_int;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "strtod$UNIX2003"
-    )]
-    pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
-    pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
-    pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
-    pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
-    pub fn malloc(size: size_t) -> *mut c_void;
-    pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
-    pub fn free(p: *mut c_void);
-    pub fn abort() -> !;
-    pub fn exit(status: c_int) -> !;
-    pub fn _exit(status: c_int) -> !;
-    pub fn atexit(cb: extern "C" fn()) -> c_int;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "system$UNIX2003"
-    )]
-    pub fn system(s: *const c_char) -> c_int;
-    pub fn getenv(s: *const c_char) -> *mut c_char;
-
-    pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
-    pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
-    pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char;
-    pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char;
-    pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int;
-    pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;
-    pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int;
-    pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char;
-    pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char;
-    pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t;
-    pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t;
-    pub fn strdup(cs: *const c_char) -> *mut c_char;
-    pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;
-    pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
-    pub fn strlen(cs: *const c_char) -> size_t;
-    pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;
-    #[cfg_attr(
-        all(target_os = "macos", target_arch = "x86"),
-        link_name = "strerror$UNIX2003"
-    )]
-    pub fn strerror(n: c_int) -> *mut c_char;
-    pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char;
-    pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;
-    pub fn wcslen(buf: *const wchar_t) -> size_t;
-    pub fn wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> ::size_t;
-
-    pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
-    pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
-    pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
-    pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
-    pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
-}
-
-// These are all inline functions on android, so they end up just being entirely
-// missing on that platform.
-
-#[cfg(not(target_os = "android"))]
-extern "C" {
-    pub fn abs(i: c_int) -> c_int;
-    pub fn atof(s: *const c_char) -> c_double;
-    pub fn labs(i: c_long) -> c_long;
-    pub fn rand() -> c_int;
-    pub fn srand(seed: c_uint);
-}
-
 cfg_if! {
     if #[cfg(windows)] {
+        mod libc;
+        pub use libc::*;
+
         mod windows;
         pub use windows::*;
     } else if #[cfg(target_os = "redox")] {
+        mod libc;
+        pub use libc::*;
+
         mod redox;
         pub use redox::*;
     } else if #[cfg(target_os = "cloudabi")] {
+        mod libc;
+        pub use libc::*;
+
         mod cloudabi;
         pub use cloudabi::*;
     } else if #[cfg(target_os = "fuchsia")] {
+        mod libc;
+        pub use libc::*;
+
         mod fuchsia;
         pub use fuchsia::*;
     } else if #[cfg(target_os = "switch")] {
+        mod libc;
+        pub use libc::*;
+
         mod switch;
         pub use switch::*;
     } else if #[cfg(unix)] {
+        mod libc;
+        pub use libc::*;
+
         mod unix;
         pub use unix::*;
+    } else if #[cfg(target_env = "sgx")] {
+        mod sgx;
+        pub use sgx::*;
+    } else if #[cfg(target_os = "emscripten")] {
+        mod libc;
+        pub use libc::*;
     } else {
-        // Unknown target_family
+        // Unknown target: libc is "empty"
     }
 }