Make it compile

Cargo.lock

@@ -8,17 +8,17 @@ dependencies = [
 
 [[package]]
 name = "atty"
-version = "0.2.10"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "bitflags"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -27,9 +27,9 @@ version = "0.5.2"
 dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "standalone-syn 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -37,12 +37,12 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.18"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -51,8 +51,8 @@ version = "2.32.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "atty 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -62,7 +62,7 @@ dependencies = [
 [[package]]
 name = "compiler_builtins"
 version = "0.1.0"
-source = "git+https://github.com/rust-lang-nursery/compiler-builtins.git#5d370bb352c915225981d89b80227afa4836cb93"
+source = "git+https://github.com/rust-lang-nursery/compiler-builtins.git#3caed3c80207fa43ba2963949c5f104a63c4264e"
 
 [[package]]
 name = "crt0"
@@ -71,17 +71,12 @@ dependencies = [
  "relibc 0.1.0",
 ]
 
-[[package]]
-name = "dtoa"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -106,7 +101,7 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.42"
+version = "0.2.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -114,15 +109,15 @@ name = "log"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -156,11 +151,11 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -199,7 +194,7 @@ dependencies = [
 name = "relibc"
 version = "0.1.0"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "compiler_builtins 0.1.0 (git+https://github.com/rust-lang-nursery/compiler-builtins.git)",
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ralloc 1.0.0",
@@ -218,6 +213,11 @@ dependencies = [
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ryu"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "sc"
 version = "0.2.2"
@@ -225,7 +225,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.70"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "serde_derive 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -252,12 +252,12 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.24"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -311,7 +311,7 @@ name = "tempdir"
 version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -320,7 +320,7 @@ name = "termion"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -338,7 +338,7 @@ name = "toml"
 version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -372,7 +372,7 @@ dependencies = [
 name = "va_list-helper"
 version = "0.0.2"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -406,34 +406,34 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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-"checksum atty 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "2fc4a1aa4c24c0718a250f0681885c1af91419d242f29eb8f2ab28502d80dbd1"
-"checksum bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d0c54bb8f454c567f21197eefcdbf5679d0bd99f2ddbe52e84c77061952e6789"
-"checksum cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "2119ea4867bd2b8ed3aecab467709720b2d55b1bcfe09f772fd68066eaf15275"
-"checksum cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "efe5c877e17a9c717a0bf3613b2709f723202c4e4675cc8f12926ded29bcb17e"
+"checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
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src/crt0/src/lib.rs

@@ -1,23 +1,11 @@
 //! crt0
 
 #![no_std]
-#![feature(alloc)]
 #![feature(asm)]
+#![feature(lang_items)]
 #![feature(linkage)]
 #![feature(naked_functions)]
 #![feature(panic_implementation)]
-#![feature(lang_items)]
-
-extern crate alloc;
-extern crate relibc;
-
-use relibc::platform;
-use relibc::header::stdio;
-
-use alloc::Vec;
-use core::ptr;
-use platform::{Pal, Sys};
-use platform::types::*;
 
 #[no_mangle]
 #[naked]
@@ -41,96 +29,15 @@ pub unsafe extern "C" fn _start() {
     );
 }
 
-#[repr(C)]
-pub struct Stack {
-    argc: isize,
-    argv0: *const c_char,
-}
-
-impl Stack {
-    fn argc(&self) -> isize {
-        self.argc
-    }
-
-    fn argv(&self) -> *const *const c_char {
-        &self.argv0 as *const _
-    }
-
-    fn envp(&self) -> *const *const c_char {
-        unsafe { self.argv().offset(self.argc() + 1) }
-    }
-}
-
-#[inline(never)]
+#[panic_implementation]
+#[linkage = "weak"]
 #[no_mangle]
-pub unsafe extern "C" fn _start_rust(sp: &'static Stack) -> ! {
+pub extern "C" fn rust_begin_unwind(_pi: &::core::panic::PanicInfo) -> ! {
     extern "C" {
-        fn main(argc: isize, argv: *const *const c_char, envp: *const *const c_char) -> c_int;
-    }
-
-    let argc = sp.argc();
-    let argv = sp.argv();
-
-    let envp = sp.envp();
-    let mut len = 0;
-    while *envp.offset(len) != ptr::null() {
-        len += 1;
+        fn exit(status: i32) -> !;
     }
-    platform::inner_environ = Vec::with_capacity(len as usize + 1);
-    for i in 0..len {
-        let mut item = *envp.offset(i);
-        let mut len = 0;
-        while *item.offset(len) != 0 {
-            len += 1;
-        }
 
-        let buf = platform::alloc(len as usize + 1) as *mut c_char;
-        for i in 0..=len {
-            *buf.offset(i) = *item.offset(i);
-        }
-        platform::inner_environ.push(buf);
+    unsafe {
+        exit(1)
     }
-    platform::inner_environ.push(ptr::null_mut());
-    platform::environ = platform::inner_environ.as_mut_ptr();
-
-    // Initialize stdin/stdout/stderr, see https://github.com/rust-lang/rust/issues/51718
-    stdio::stdin = stdio::default_stdin.get();
-    stdio::stdout = stdio::default_stdout.get();
-    stdio::stderr = stdio::default_stderr.get();
-
-    Sys::exit(main(
-        argc,
-        argv,
-        // not envp, because programs like bash try to modify this *const*
-        // pointer :|
-        platform::environ as *const *const c_char
-    ));
-}
-
-#[panic_implementation]
-#[linkage = "weak"]
-#[no_mangle]
-pub extern "C" fn rust_begin_unwind(pi: &::core::panic::PanicInfo) -> ! {
-    use core::fmt::Write;
-
-    let mut w = platform::FileWriter(2);
-    let _ = w.write_fmt(format_args!("RELIBC CRT0 PANIC: {}\n", pi));
-
-    Sys::exit(1);
-}
-
-#[lang = "oom"]
-#[linkage = "weak"]
-#[no_mangle]
-pub extern "C" fn rust_oom(layout: ::core::alloc::Layout) -> ! {
-    use core::fmt::Write;
-
-    let mut w = platform::FileWriter(2);
-    let _ = w.write_fmt(format_args!(
-        "RELIBC OOM: {} bytes aligned to {} bytes\n",
-        layout.size(),
-        layout.align()
-    ));
-
-    Sys::exit(1);
 }

src/start.rs

@@ -0,0 +1,70 @@
+use alloc::Vec;
+use core::ptr;
+
+use platform::types::*;
+
+#[repr(C)]
+pub struct Stack {
+    argc: isize,
+    argv0: *const c_char,
+}
+
+impl Stack {
+    fn argc(&self) -> isize {
+        self.argc
+    }
+
+    fn argv(&self) -> *const *const c_char {
+        &self.argv0 as *const _
+    }
+
+    fn envp(&self) -> *const *const c_char {
+        unsafe { self.argv().offset(self.argc() + 1) }
+    }
+}
+
+#[inline(never)]
+#[no_mangle]
+pub unsafe extern "C" fn _start_rust(sp: &'static Stack) -> ! {
+    extern "C" {
+        fn main(argc: isize, argv: *const *const c_char, envp: *const *const c_char) -> c_int;
+    }
+
+    let argc = sp.argc();
+    let argv = sp.argv();
+
+    let envp = sp.envp();
+    let mut len = 0;
+    while *envp.offset(len) != ptr::null() {
+        len += 1;
+    }
+    platform::inner_environ = Vec::with_capacity(len as usize + 1);
+    for i in 0..len {
+        let mut item = *envp.offset(i);
+        let mut len = 0;
+        while *item.offset(len) != 0 {
+            len += 1;
+        }
+
+        let buf = platform::alloc(len as usize + 1) as *mut c_char;
+        for i in 0..=len {
+            *buf.offset(i) = *item.offset(i);
+        }
+        platform::inner_environ.push(buf);
+    }
+    platform::inner_environ.push(ptr::null_mut());
+    platform::environ = platform::inner_environ.as_mut_ptr();
+
+    // Initialize stdin/stdout/stderr, see https://github.com/rust-lang/rust/issues/51718
+    stdio::stdin = stdio::default_stdin.get();
+    stdio::stdout = stdio::default_stdout.get();
+    stdio::stderr = stdio::default_stderr.get();
+
+    Sys::exit(main(
+        argc,
+        argv,
+        // not envp, because programs like bash try to modify this *const*
+        // pointer :|
+        platform::environ as *const *const c_char
+    ));
+}