Add SGX C types

ci/style.rs

@@ -72,6 +72,8 @@ fn walk(path: &Path, err: &mut Errors) {
 
             "dox.rs" |
             "lib.rs" |
+            "ctypes.rs" |
+            "libc.rs" |
             "macros.rs" => continue,
 
             _ => {}

libc-test/build.rs

@@ -354,9 +354,10 @@ fn main() {
     cfg.type_name(move |ty, is_struct, is_union| {
         match ty {
             // Just pass all these through, no need for a "struct" prefix
-            "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr" | "Elf64_Phdr" | "Elf32_Shdr"
-            | "Elf64_Shdr" | "Elf32_Sym" | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr"
-            | "Elf32_Chdr" | "Elf64_Chdr" => ty.to_string(),
+            "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr"
+            | "Elf64_Phdr" | "Elf32_Shdr" | "Elf64_Shdr" | "Elf32_Sym"
+            | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr" | "Elf32_Chdr"
+            | "Elf64_Chdr" => ty.to_string(),
 
             // Fixup a few types on windows that don't actually exist.
             "time64_t" if windows => "__time64_t".to_string(),
@@ -391,8 +392,12 @@ fn main() {
     let target2 = target.clone();
     cfg.field_name(move |struct_, field| {
         match field {
-            "st_birthtime" if openbsd && struct_ == "stat" => "__st_birthtime".to_string(),
-            "st_birthtime_nsec" if openbsd && struct_ == "stat" => "__st_birthtimensec".to_string(),
+            "st_birthtime" if openbsd && struct_ == "stat" => {
+                "__st_birthtime".to_string()
+            }
+            "st_birthtime_nsec" if openbsd && struct_ == "stat" => {
+                "__st_birthtimensec".to_string()
+            }
             // Our stat *_nsec fields normally don't actually exist but are part
             // of a timeval struct
             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
@@ -459,8 +464,9 @@ fn main() {
 
             // Present on historical versions of iOS but missing in more recent
             // SDKs
-            "bpf_hdr" | "proc_taskinfo" | "proc_taskallinfo" | "proc_bsdinfo"
-            | "proc_threadinfo" | "sockaddr_inarp" | "sockaddr_ctl" | "arphdr"
+            "bpf_hdr" | "proc_taskinfo" | "proc_taskallinfo"
+            | "proc_bsdinfo" | "proc_threadinfo" | "sockaddr_inarp"
+            | "sockaddr_ctl" | "arphdr"
                 if ios =>
             {
                 true
@@ -472,7 +478,10 @@ fn main() {
 
     cfg.skip_signededness(move |c| {
         match c {
-            "LARGE_INTEGER" | "mach_timebase_info_data_t" | "float" | "double" => true,
+            "LARGE_INTEGER"
+            | "mach_timebase_info_data_t"
+            | "float"
+            | "double" => true,
             // uuid_t is a struct, not an integer.
             "uuid_t" if dragonfly => true,
             n if n.starts_with("pthread") => true,
@@ -512,7 +521,12 @@ fn main() {
 
             // Skip constants not defined in MUSL but just passed down to the
             // kernel regardless
-            "RLIMIT_NLIMITS" | "TCP_COOKIE_TRANSACTIONS" | "RLIMIT_RTTIME" | "MSG_COPY" if musl => {
+            "RLIMIT_NLIMITS"
+            | "TCP_COOKIE_TRANSACTIONS"
+            | "RLIMIT_RTTIME"
+            | "MSG_COPY"
+                if musl =>
+            {
                 true
             }
             // work around super old mips toolchain
@@ -532,11 +546,16 @@ fn main() {
             // These constants were removed in FreeBSD 11 (svn r262489),
             // and they've never had any legitimate use outside of the
             // base system anyway.
-            "CTL_MAXID" | "KERN_MAXID" | "HW_MAXID" | "NET_MAXID" | "USER_MAXID" if freebsd => true,
+            "CTL_MAXID" | "KERN_MAXID" | "HW_MAXID" | "NET_MAXID"
+            | "USER_MAXID"
+                if freebsd =>
+            {
+                true
+            }
 
             // These constants were added in FreeBSD 11
-            "EVFILT_PROCDESC" | "EVFILT_SENDFILE" | "EVFILT_EMPTY" | "PD_CLOEXEC"
-            | "PD_ALLOWED_AT_FORK"
+            "EVFILT_PROCDESC" | "EVFILT_SENDFILE" | "EVFILT_EMPTY"
+            | "PD_CLOEXEC" | "PD_ALLOWED_AT_FORK"
                 if freebsd =>
             {
                 true
@@ -613,13 +632,19 @@ fn main() {
             // These constants are tested in a separate test program generated below because there
             // are header conflicts if we try to include the headers that define them here.
             "F_CANCELLK" | "F_ADD_SEALS" | "F_GET_SEALS" => true,
-            "F_SEAL_SEAL" | "F_SEAL_SHRINK" | "F_SEAL_GROW" | "F_SEAL_WRITE" => true,
-            "QFMT_VFS_OLD" | "QFMT_VFS_V0" | "QFMT_VFS_V1" if mips && linux => true, // Only on MIPS
+            "F_SEAL_SEAL" | "F_SEAL_SHRINK" | "F_SEAL_GROW"
+            | "F_SEAL_WRITE" => true,
+            "QFMT_VFS_OLD" | "QFMT_VFS_V0" | "QFMT_VFS_V1"
+                if mips && linux =>
+            {
+                true
+            } // Only on MIPS
             "BOTHER" => true,
 
             "MFD_CLOEXEC" | "MFD_ALLOW_SEALING" if !mips && musl => true,
 
-            "DT_FIFO" | "DT_CHR" | "DT_DIR" | "DT_BLK" | "DT_REG" | "DT_LNK" | "DT_SOCK"
+            "DT_FIFO" | "DT_CHR" | "DT_DIR" | "DT_BLK" | "DT_REG"
+            | "DT_LNK" | "DT_SOCK"
                 if solaris =>
             {
                 true
@@ -628,7 +653,10 @@ fn main() {
             "PRIO_MIN" | "PRIO_MAX" if solaris => true,
 
             // These are defined for Solaris 11, but the crate is tested on illumos, where they are currently not defined
-            "EADI" | "PORT_SOURCE_POSTWAIT" | "PORT_SOURCE_SIGNAL" | "PTHREAD_STACK_MIN" => true,
+            "EADI"
+            | "PORT_SOURCE_POSTWAIT"
+            | "PORT_SOURCE_SIGNAL"
+            | "PTHREAD_STACK_MIN" => true,
 
             // These change all the time from release to release of linux
             // distros, let's just not bother trying to verify them. They
@@ -899,8 +927,13 @@ fn main() {
         cfg.header("asm/termbits.h");
         cfg.skip_const(move |name| match name {
             "F_CANCELLK" | "F_ADD_SEALS" | "F_GET_SEALS" => false,
-            "F_SEAL_SEAL" | "F_SEAL_SHRINK" | "F_SEAL_GROW" | "F_SEAL_WRITE" => false,
-            "QFMT_VFS_OLD" | "QFMT_VFS_V0" | "QFMT_VFS_V1" if mips && linux => false,
+            "F_SEAL_SEAL" | "F_SEAL_SHRINK" | "F_SEAL_GROW"
+            | "F_SEAL_WRITE" => false,
+            "QFMT_VFS_OLD" | "QFMT_VFS_V0" | "QFMT_VFS_V1"
+                if mips && linux =>
+            {
+                false
+            }
             "BOTHER" => false,
             _ => true,
         });

src/cloudabi/mod.rs

@@ -1,3 +1,32 @@
+
+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 type in_addr_t = u32;
 pub type in_port_t = u16;
 pub type pthread_key_t = usize;
@@ -56,6 +85,9 @@ s! {
     }
 }
 
+pub const INT_MIN: c_int = -2147483648;
+pub const INT_MAX: c_int = 2147483647;
+
 pub const _SC_NPROCESSORS_ONLN: ::c_int = 52;
 pub const _SC_PAGESIZE: ::c_int = 54;
 
@@ -89,7 +121,109 @@ pub const PTHREAD_STACK_MIN: ::size_t = 1024;
 pub const SOCK_DGRAM: ::c_int = 128;
 pub const SOCK_STREAM: ::c_int = 130;
 
+pub enum FILE {}
+pub enum fpos_t {} // TODO: fill this out with a struct
+
 extern {
+    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;
+    pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
+    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;
+    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;
+    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);
+    pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
+    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;
+    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 fn()) -> c_int;
+    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;
+    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;
+
+    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);
+
     pub fn arc4random_buf(buf: *const ::c_void, len: ::size_t);
     pub fn freeaddrinfo(res: *mut addrinfo);
     pub fn gai_strerror(errcode: ::c_int) -> *const ::c_char;
@@ -164,3 +298,21 @@ cfg_if! {
         // Unknown target_arch
     }
 }
+
+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,
+        }
+    }
+}