Build relibc for macos

Cargo.lock

@@ -238,7 +238,7 @@ version = "0.1.0"
 dependencies = [
  "ralloc 1.0.0",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sc 0.2.2 (git+https://github.com/NilSet/syscall.rs?branch=macos-syscall-class)",
 ]
 
 [[package]]
@@ -369,6 +369,11 @@ dependencies = [
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "sc"
+version = "0.2.2"
+source = "git+https://github.com/NilSet/syscall.rs?branch=macos-syscall-class#0f0ff20bc677d37f44fb980626686d482a28a678"
+
 [[package]]
 name = "sc"
 version = "0.2.2"
@@ -790,6 +795,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "c214e91d3ecf43e9a4e41e578973adeb14b474f2bee858742d127af75a0112b1"
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
+"checksum sc 0.2.2 (git+https://github.com/NilSet/syscall.rs?branch=macos-syscall-class)" = "<none>"
 "checksum sc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4ebbb026ba4a707c25caec2db5ef59ad8b41f7ad77cad06257e06229c891f376"
 "checksum serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)" = "0c3adf19c07af6d186d91dae8927b83b0553d07ca56cbf7f2f32560455c91920"
 "checksum serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)" = "652bc323d694dc925829725ec6c890156d8e70ae5202919869cb00fe2eff3788"

build.rs

@@ -10,6 +10,9 @@ fn main() {
         .flag("-nostdlib")
         .flag("-I")
         .flag(&format!("{}/include", crate_dir))
+        .flag("-I")
+        .flag(&format!("{}/target/include", crate_dir))
+        .define("DARWIN", None)
         .flag("-fno-stack-protector")
         .file("src/c/dlmalloc.c")
         .file("src/c/fcntl.c")

include/fcntl.h

+#ifndef _FCNTL_H
+#define _FCNTL_H
+
+#include <stdarg.h>
+#include <sys/types.h>
+
+#define FD_CLOEXEC 16777216
+
+#define F_DUPFD 0
+
+#define F_GETFD 1
+
+#define F_GETFL 3
+
+#define F_GETLK 5
+
+#define F_RDLCK 0
+
+#define F_SETFD 2
+
+#define F_SETFL 4
+
+#define F_SETLK 6
+
+#define F_SETLKW 7
+
+#define F_UNLCK 2
+
+#define F_WRLCK 1
+
+#if (!defined(__redox__))
+#define O_APPEND 1024
+#endif
+
+#if (defined(__redox__))
+#define O_APPEND 524288
+#endif
+
+#if (defined(__redox__))
+#define O_ASYNC 4194304
+#endif
+
+#if (!defined(__redox__))
+#define O_CLOEXEC 524288
+#endif
+
+#if (defined(__redox__))
+#define O_CLOEXEC 16777216
+#endif
+
+#if (!defined(__redox__))
+#define O_CREAT 64
+#endif
+
+#if (defined(__redox__))
+#define O_CREAT 33554432
+#endif
+
+#if (defined(__redox__))
+#define O_DIRECTORY 268435456
+#endif
+
+#if (!defined(__redox__))
+#define O_EXCL 128
+#endif
+
+#if (defined(__redox__))
+#define O_EXCL 134217728
+#endif
+
+#if (defined(__redox__))
+#define O_EXLOCK 2097152
+#endif
+
+#if (defined(__redox__))
+#define O_FSYNC 8388608
+#endif
+
+#if (defined(__redox__))
+#define O_NOFOLLOW 2147483648
+#endif
+
+#if (defined(__redox__))
+#define O_NONBLOCK 262144
+#endif
+
+#if (!defined(__redox__))
+#define O_RDONLY 0
+#endif
+
+#if (defined(__redox__))
+#define O_RDONLY 65536
+#endif
+
+#if (!defined(__redox__))
+#define O_RDWR 2
+#endif
+
+#if (defined(__redox__))
+#define O_RDWR 196608
+#endif
+
+#if (defined(__redox__))
+#define O_SHLOCK 1048576
+#endif
+
+#if (defined(__redox__))
+#define O_STAT 536870912
+#endif
+
+#if (defined(__redox__))
+#define O_SYMLINK 1073741824
+#endif
+
+#if (!defined(__redox__))
+#define O_TRUNC 512
+#endif
+
+#if (defined(__redox__))
+#define O_TRUNC 67108864
+#endif
+
+#if (!defined(__redox__))
+#define O_WRONLY 1
+#endif
+
+#if (defined(__redox__))
+#define O_WRONLY 131072
+#endif
+
+int creat(const char *path, mode_t mode);
+
+int sys_fcntl(int fildes, int cmd, int arg);
+
+int sys_open(const char *path, int oflag, mode_t mode);
+
+#endif /* _FCNTL_H */
+
+#include <bits/fcntl.h>

include/sys/mman.h

+#ifndef _SYS_MMAN_H
+#define _SYS_MMAN_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#define MAP_ANON 4096
+
+#define MAP_FILE 0
+
+#define MAP_FIXED 16
+
+#define MAP_PRIVATE 2
+
+#define MAP_SHARED 1
+
+#define PROT_EXEC 4
+
+#define PROT_NONE 0
+
+#define PROT_READ 1
+
+#define PROT_WRITE 2
+
+void *mmap(void *addr, uintptr_t len, int prot, int flags, int fildes, off_t off);
+
+int munmap(void *addr, uintptr_t len);
+
+#endif /* _SYS_MMAN_H */

src/c/dlmalloc.c

@@ -523,12 +523,9 @@ MAX_RELEASE_CHECK_RATE   default: 4095 unless not HAVE_MMAP
 
 /* Customizations { */
 
-#define HAVE_MMAP 0
 #define LACKS_ERRNO_H
-#define LACKS_FCNTL_H
 #define LACKS_STDLIB_H
 #define LACKS_STRING_H
-#define LACKS_SYS_MMAN_H
 #define LACKS_TIME_H
 #define LACKS_UNISTD_H
 #define NO_MALLOC_STATS 1

src/crt0/src/lib.rs

@@ -19,7 +19,7 @@ use platform::types::*;
 #[no_mangle]
 #[naked]
 pub unsafe extern "C" fn _start() {
-    #[cfg(target_arch = "x86_64")]
+    #[cfg(all(target_arch = "x86_64", not(target_os = "macos")))]
     asm!("mov rdi, rsp
         and rsp, 0xFFFFFFFFFFFFFFF0
         call _start_rust"
@@ -28,6 +28,15 @@ pub unsafe extern "C" fn _start() {
         :
         : "intel", "volatile"
     );
+    #[cfg(all(target_arch = "x86_64", target_os = "macos"))]
+    asm!("mov rdi, rsp
+        and rsp, 0xFFFFFFFFFFFFFFF0
+        call __start_rust"
+        :
+        :
+        :
+        : "intel", "volatile"
+    );
     #[cfg(target_arch = "aarch64")]
     asm!("mov x0, sp
         bl _start_rust"

src/fcntl/src/lib.rs

@@ -8,7 +8,7 @@ use platform::types::*;
 
 pub use sys::*;
 
-#[cfg(target_os = "linux")]
+#[cfg(not(target_os = "redox"))]
 #[path = "linux.rs"]
 pub mod sys;
 

src/platform/Cargo.toml

@@ -8,8 +8,8 @@ path = "../../ralloc"
 default-features = false
 optional = true
 
-[target.'cfg(target_os = "linux")'.dependencies]
-sc = "0.2"
+[target.'cfg(not(target_os = "redox"))'.dependencies]
+sc = { git = "https://github.com/NilSet/syscall.rs", branch = "macos-syscall-class" }
 
 [target.'cfg(target_os = "redox")'.dependencies]
 redox_syscall = "0.1"

src/platform/src/lib.rs

@@ -2,11 +2,12 @@
 #![allow(non_camel_case_types)]
 #![feature(alloc, allocator_api, const_vec_new)]
 #![cfg_attr(target_os = "redox", feature(thread_local))]
+#![cfg_attr(target_os = "macos", feature(asm))]
 
 #[cfg_attr(target_os = "redox", macro_use)]
 extern crate alloc;
 
-#[cfg(all(not(feature = "no_std"), target_os = "linux"))]
+#[cfg(all(not(feature = "no_std"), not(target_os = "redox")))]
 #[macro_use]
 extern crate sc;
 
@@ -29,6 +30,10 @@ pub use sys::*;
 #[path = "linux/mod.rs"]
 mod sys;
 
+#[cfg(all(not(feature = "no_std"), target_os = "macos"))]
+#[path = "macos/mod.rs"]
+mod sys;
+
 #[cfg(all(not(feature = "no_std"), target_os = "redox"))]
 #[path = "redox/mod.rs"]
 mod sys;

src/platform/src/macos/mod.rs

+use types::*;
+use *;
+
+const MAXPATHLEN: usize = 1024;
+
+pub fn e(sys: usize) -> usize {
+    if (sys as isize) < 0 && (sys as isize) >= -256 {
+        unsafe {
+            errno = -(sys as isize) as c_int;
+        }
+        !0
+    } else {
+        sys
+    }
+}
+
+pub unsafe fn accept(socket: c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> c_int {
+    e(syscall!(ACCEPT, socket, address, address_len)) as c_int
+}
+pub unsafe fn bind(socket: c_int, address: *const sockaddr, address_len: socklen_t) -> c_int {
+    e(syscall!(BIND, socket, address, address_len)) as c_int
+}
+pub fn brk(addr: *mut c_void) -> *mut c_void {
+    // mac has no good solution for this
+    e(-38isize as usize) as *mut c_void
+}
+pub fn chdir(path: *const c_char) -> c_int {
+    e(unsafe { syscall!(CHDIR, path) }) as c_int
+}
+pub fn chmod(path: *const c_char, mode: mode_t) -> c_int {
+    e(unsafe { syscall!(CHMOD, path, mode) }) as c_int
+}
+pub fn chown(path: *const c_char, owner: uid_t, group: gid_t) -> c_int {
+    e(unsafe { syscall!(CHOWN, path, owner as u32, group as u32) }) as c_int
+}
+pub fn clock_gettime(clk_id: clockid_t, tp: *mut timespec) -> c_int {
+    // FIXME implement this, no single mac syscall
+    e(-38isize as usize) as c_int
+}
+pub fn close(fildes: c_int) -> c_int {
+    e(unsafe { syscall!(CLOSE, fildes) }) as c_int
+}
+pub unsafe fn connect(socket: c_int, address: *const sockaddr, address_len: socklen_t) -> c_int {
+    e(syscall!(CONNECT, socket, address, address_len)) as c_int
+}
+pub fn dup(fildes: c_int) -> c_int {
+    e(unsafe { syscall!(DUP, fildes) }) as c_int
+}
+pub fn dup2(fildes: c_int, fildes2: c_int) -> c_int {
+    e(unsafe { syscall!(DUP2, fildes, fildes2) }) as c_int
+}
+pub fn execve(path: *const c_char, argv: *const *mut c_char, envp: *const *mut c_char) -> c_int {
+    e(unsafe { syscall!(EXECVE, path, argv, envp) }) as c_int
+}
+pub fn exit(status: c_int) -> ! {
+    unsafe {
+        syscall!(EXIT, status);
+    }
+    loop {}
+}
+pub fn fchdir(fildes: c_int) -> c_int {
+    e(unsafe { syscall!(FCHDIR, fildes) }) as c_int
+}
+pub fn fchmod(fildes: c_int, mode: mode_t) -> c_int {
+    e(unsafe { syscall!(FCHMOD, fildes, mode) }) as c_int
+}
+pub fn fchown(fildes: c_int, owner: uid_t, group: gid_t) -> c_int {
+    e(unsafe { syscall!(FCHOWN, fildes, owner, group) }) as c_int
+}
+pub fn fcntl(fildes: c_int, cmd: c_int, arg: c_int) -> c_int {
+    e(unsafe { syscall!(FCNTL, fildes, cmd, arg) }) as c_int
+}
+pub fn fcntl_ptr(fildes: c_int, cmd: c_int, arg: *mut c_void) -> c_int {
+    e(unsafe { syscall!(FCNTL, fildes, cmd, arg) }) as c_int
+}
+pub fn fork() -> usize {
+    let pid: usize;
+    let is_child: usize;
+    unsafe {
+        asm!("syscall" : "={eax}"(pid), "={edx}"(is_child)
+                       : "{eax}"(sc::platform::syscall_construct_unix(sc::platform::nr::FORK))
+                       : "rcx", "r11", "memory"
+                       : "volatile");
+    }
+    // AFTER FORK SYSCALL
+    // if there was a problem, CF==1 and errno is in %rax
+    // else, if parent, %edx is 0 and %eax contains the child pid
+    // else (child), %edx is nonzero
+    // macos libsyscall adjusts the stack pointer for some reason
+    if (pid as isize) < 0 { // something went wrong
+        e(pid)
+    } else if is_child == 0 { // in parent
+        pid
+    } else { // in child
+        // TODO clear cached getpid
+        0
+    }
+}
+pub fn fstat(fildes: c_int, buf: *mut stat) -> c_int {
+    e(unsafe { syscall!(FSTAT, fildes, buf) }) as c_int
+}
+pub fn fsync(fildes: c_int) -> c_int {
+    e(unsafe { syscall!(FSYNC, fildes) }) as c_int
+}
+pub fn ftruncate(fildes: c_int, length: off_t) -> c_int {
+    e(unsafe { syscall!(FTRUNCATE, fildes, length) }) as c_int
+}
+pub fn getcwd(buf: *mut c_char, size: size_t) -> *mut c_char {
+    const F_GETPATH: c_int = 50;
+    let mut dotpath = [0u8; 1024];
+    let dot = open(b".\0".as_ptr() as *const i8, 0, 0);
+    let res = fcntl_ptr(dot, F_GETPATH, dotpath.as_mut_ptr() as *mut c_void);
+    if res == -1 {
+        ptr::null_mut()
+    } else if let Some(index) =
+        dotpath
+            .iter()
+            .position(|x| *x == 0)
+            .and_then(|x| if x < size { Some(x) } else { None })
+    {
+        let mut out = unsafe { core::slice::from_raw_parts_mut(buf as *mut u8, index + 1) };
+        out.copy_from_slice(&dotpath[..index + 1]);
+        buf
+    } else {
+        unsafe { errno = 34 };
+        ptr::null_mut()
+    }
+}
+pub fn getegid() -> gid_t {
+    e(unsafe { syscall!(GETEGID) })
+}
+pub fn geteuid() -> uid_t {
+    e(unsafe { syscall!(GETEUID) })
+}
+pub fn getgid() -> gid_t {
+    e(unsafe { syscall!(GETGID) })
+}
+pub unsafe fn getpeername(
+    socket: c_int,
+    address: *mut sockaddr,
+    address_len: *mut socklen_t,
+) -> c_int {
+    e(syscall!(GETPEERNAME, socket, address, address_len)) as c_int
+}
+pub fn getpgid(pid: pid_t) -> pid_t {
+    e(unsafe { syscall!(GETPGID, pid) })
+}
+pub fn getpid() -> pid_t {
+    e(unsafe { syscall!(GETPID) })
+}
+pub fn getppid() -> pid_t {
+    e(unsafe { syscall!(GETPPID) })
+}
+pub unsafe fn getsockname(
+    socket: c_int,
+    address: *mut sockaddr,
+    address_len: *mut socklen_t,
+) -> c_int {
+    e(syscall!(GETSOCKNAME, socket, address, address_len)) as c_int
+}
+pub fn getsockopt(
+    socket: c_int,
+    level: c_int,
+    option_name: c_int,
+    option_value: *mut c_void,
+    option_len: *mut socklen_t,
+) -> c_int {
+    e(unsafe {
+        syscall!(
+            GETSOCKOPT,
+            socket,
+            level,
+            option_name,
+            option_value,
+            option_len
+        )
+    }) as c_int
+}
+pub fn getuid() -> uid_t {
+    e(unsafe { syscall!(GETUID) })
+}
+pub fn kill(pid: pid_t, sig: c_int) -> c_int {
+    e(unsafe { syscall!(KILL, pid, sig) }) as c_int
+}
+pub fn killpg(pgrp: pid_t, sig: c_int) -> c_int {
+    e(unsafe { syscall!(KILL, -(pgrp as isize) as pid_t, sig) }) as c_int
+}
+pub fn link(path1: *const c_char, path2: *const c_char) -> c_int {
+    e(unsafe { syscall!(LINK, path1, path2) }) as c_int
+}
+pub fn listen(socket: c_int, backlog: c_int) -> c_int {
+    e(unsafe { syscall!(LISTEN, socket, backlog) }) as c_int
+}
+pub fn lseek(fildes: c_int, offset: off_t, whence: c_int) -> off_t {
+    e(unsafe { syscall!(LSEEK, fildes, offset, whence) }) as off_t
+}
+pub fn lstat(file: *const c_char, buf: *mut stat) -> c_int {
+    e(unsafe { syscall!(LSTAT, file, buf) }) as c_int
+}
+pub fn mkdir(path: *const c_char, mode: mode_t) -> c_int {
+    e(unsafe { syscall!(MKDIR, path, mode) }) as c_int
+}
+pub fn mkfifo(path: *const c_char, mode: mode_t) -> c_int {
+    e(unsafe { syscall!(MKFIFO, path, mode) }) as c_int
+}
+pub fn mmap(addr: *mut c_void, len: size_t, prot: c_int, flags: c_int, fd: c_int, offset: off_t) -> *mut c_void {
+    e(unsafe { syscall!(MMAP, addr, len, prot, flags, fd, offset) }) as *mut c_void
+}
+pub fn munmap(addr: *mut c_void, len: size_t) -> c_int {
+    e(unsafe { syscall!(MUNMAP, addr, len) }) as c_int
+}
+pub fn nanosleep(rqtp: *const timespec, rmtp: *mut timespec) -> c_int {
+    // FIXME implement this
+    e(-38isize as usize) as c_int
+}
+pub fn open(path: *const c_char, oflag: c_int, mode: mode_t) -> c_int {
+    e(unsafe { syscall!(OPEN, path, oflag, mode) }) as c_int
+}
+pub fn pipe(fildes: &mut [c_int]) -> c_int {
+    // PIPE is "special", it places a second return value in %edx
+    // thus we need custom asm
+    let ret: usize;
+    unsafe {
+        asm!("syscall" : "={eax}"(fildes[0]), "={edx}"(fildes[1]), "={rax}"(ret)
+                       : "{rax}"(sc::platform::syscall_construct_unix(sc::platform::nr::PIPE))
+                       : "rcx", "r11", "memory"
+                       : "volatile");
+    }
+    let err = e(ret);
+    if err == !0 {
+        err as c_int
+    } else {
+        0
+    }
+}
+pub fn read(fildes: c_int, buf: &mut [u8]) -> ssize_t {
+    e(unsafe { syscall!(READ, fildes, buf.as_mut_ptr(), buf.len()) }) as ssize_t
+}
+pub unsafe fn recvfrom(
+    socket: c_int,
+    buf: *mut c_void,
+    len: size_t,
+    flags: c_int,
+    address: *mut sockaddr,
+    address_len: *mut socklen_t,
+) -> ssize_t {
+    e(syscall!(
+        RECVFROM,
+        socket,
+        buf,
+        len,
+        flags,
+        address,
+        address_len
+    )) as ssize_t
+}
+pub fn rename(old: *const c_char, new: *const c_char) -> c_int {
+    e(unsafe { syscall!(RENAME, old, new) }) as c_int
+}
+pub fn rmdir(path: *const c_char) -> c_int {
+    e(unsafe { syscall!(RMDIR, path) }) as c_int
+}
+pub unsafe fn sendto(
+    socket: c_int,
+    buf: *const c_void,
+    len: size_t,
+    flags: c_int,
+    dest_addr: *const sockaddr,
+    dest_len: socklen_t,
+) -> ssize_t {
+    e(syscall!(
+        SENDTO, socket, buf, len, flags, dest_addr, dest_len
+    )) as ssize_t
+}
+pub fn setpgid(pid: pid_t, pgid: pid_t) -> c_int {
+    e(unsafe { syscall!(SETPGID, pid, pgid) }) as c_int
+}
+pub fn setregid(rgid: gid_t, egid: gid_t) -> c_int {
+    e(unsafe { syscall!(SETREGID, rgid, egid) }) as c_int
+}
+pub fn setreuid(ruid: uid_t, euid: uid_t) -> c_int {
+    e(unsafe { syscall!(SETREUID, ruid, euid) }) as c_int
+}
+pub fn setsockopt(
+    socket: c_int,
+    level: c_int,
+    option_name: c_int,
+    option_value: *const c_void,
+    option_len: socklen_t,
+) -> c_int {
+    e(unsafe {
+        syscall!(
+            SETSOCKOPT,
+            socket,
+            level,
+            option_name,
+            option_value,
+            option_len
+        )
+    }) as c_int
+}
+pub fn shutdown(socket: c_int, how: c_int) -> c_int {
+    e(unsafe { syscall!(SHUTDOWN, socket, how) }) as c_int
+}
+pub fn stat(file: *const c_char, buf: *mut stat) -> c_int {
+    e(unsafe { syscall!(STAT, file, buf) }) as c_int
+}
+pub fn socket(domain: c_int, kind: c_int, protocol: c_int) -> c_int {
+    e(unsafe { syscall!(SOCKET, domain, kind, protocol) }) as c_int
+}
+pub fn socketpair(domain: c_int, kind: c_int, protocol: c_int, socket_vector: *mut c_int) -> c_int {
+    e(unsafe { syscall!(SOCKETPAIR, domain, kind, protocol, socket_vector) }) as c_int
+}
+pub fn uname(utsname: usize) -> c_int {
+    // FIXME implement this
+    e(-38isize as usize) as c_int
+}
+pub fn unlink(