Fixes according to Fenrir's review

ctr-std/src/Cargo.toml

@@ -1,51 +0,0 @@
-[package]
-authors = ["The Rust Project Developers"]
-name = "std"
-version = "0.0.0"
-build = "build.rs"
-license = "MIT/Apache-2.0"
-repository = "https://github.com/rust-lang/rust.git"
-description = "The Rust Standard Library"
-
-[lib]
-name = "std"
-path = "lib.rs"
-crate-type = ["dylib", "rlib"]
-
-[dependencies]
-alloc = { path = "../liballoc" }
-alloc_jemalloc = { path = "../liballoc_jemalloc", optional = true }
-alloc_system = { path = "../liballoc_system" }
-panic_unwind = { path = "../libpanic_unwind", optional = true }
-panic_abort = { path = "../libpanic_abort" }
-core = { path = "../libcore" }
-libc = { path = "../rustc/libc_shim" }
-compiler_builtins = { path = "../rustc/compiler_builtins_shim" }
-profiler_builtins = { path = "../libprofiler_builtins", optional = true }
-std_unicode = { path = "../libstd_unicode" }
-unwind = { path = "../libunwind" }
-
-[dev-dependencies]
-rand = "0.4"
-
-[target.x86_64-apple-darwin.dependencies]
-rustc_asan = { path = "../librustc_asan" }
-rustc_tsan = { path = "../librustc_tsan" }
-
-[target.x86_64-unknown-linux-gnu.dependencies]
-rustc_asan = { path = "../librustc_asan" }
-rustc_lsan = { path = "../librustc_lsan" }
-rustc_msan = { path = "../librustc_msan" }
-rustc_tsan = { path = "../librustc_tsan" }
-
-[build-dependencies]
-build_helper = { path = "../build_helper" }
-
-[features]
-backtrace = []
-debug-jemalloc = ["alloc_jemalloc/debug"]
-jemalloc = ["alloc_jemalloc"]
-force_alloc_system = []
-panic-unwind = ["panic_unwind"]
-profiler = ["profiler_builtins"]
-wasm_syscall = []

ctr-std/src/build.rs

@@ -1,109 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![deny(warnings)]
-
-extern crate build_helper;
-
-use std::env;
-use std::process::Command;
-use build_helper::{run, native_lib_boilerplate};
-
-fn main() {
-    let target = env::var("TARGET").expect("TARGET was not set");
-    let host = env::var("HOST").expect("HOST was not set");
-    if cfg!(feature = "backtrace") &&
-        !target.contains("cloudabi") &&
-        !target.contains("emscripten") &&
-        !target.contains("fuchsia") &&
-        !target.contains("msvc") &&
-        !target.contains("wasm32")
-    {
-        let _ = build_libbacktrace(&host, &target);
-    }
-
-    if target.contains("linux") {
-        if target.contains("android") {
-            println!("cargo:rustc-link-lib=dl");
-            println!("cargo:rustc-link-lib=log");
-            println!("cargo:rustc-link-lib=gcc");
-        } else if !target.contains("musl") {
-            println!("cargo:rustc-link-lib=dl");
-            println!("cargo:rustc-link-lib=rt");
-            println!("cargo:rustc-link-lib=pthread");
-        }
-    } else if target.contains("freebsd") {
-        println!("cargo:rustc-link-lib=execinfo");
-        println!("cargo:rustc-link-lib=pthread");
-    } else if target.contains("dragonfly") || target.contains("bitrig") ||
-              target.contains("netbsd") || target.contains("openbsd") {
-        println!("cargo:rustc-link-lib=pthread");
-    } else if target.contains("solaris") {
-        println!("cargo:rustc-link-lib=socket");
-        println!("cargo:rustc-link-lib=posix4");
-        println!("cargo:rustc-link-lib=pthread");
-        println!("cargo:rustc-link-lib=resolv");
-    } else if target.contains("apple-darwin") {
-        println!("cargo:rustc-link-lib=System");
-
-        // res_init and friends require -lresolv on macOS/iOS.
-        // See #41582 and http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
-        println!("cargo:rustc-link-lib=resolv");
-    } else if target.contains("apple-ios") {
-        println!("cargo:rustc-link-lib=System");
-        println!("cargo:rustc-link-lib=objc");
-        println!("cargo:rustc-link-lib=framework=Security");
-        println!("cargo:rustc-link-lib=framework=Foundation");
-        println!("cargo:rustc-link-lib=resolv");
-    } else if target.contains("windows") {
-        println!("cargo:rustc-link-lib=advapi32");
-        println!("cargo:rustc-link-lib=ws2_32");
-        println!("cargo:rustc-link-lib=userenv");
-        println!("cargo:rustc-link-lib=shell32");
-    } else if target.contains("fuchsia") {
-        // use system-provided libbacktrace
-        if cfg!(feature = "backtrace") {
-            println!("cargo:rustc-link-lib=backtrace");
-        }
-        println!("cargo:rustc-link-lib=zircon");
-        println!("cargo:rustc-link-lib=fdio");
-        println!("cargo:rustc-link-lib=launchpad"); // for std::process
-    } else if target.contains("cloudabi") {
-        if cfg!(feature = "backtrace") {
-            println!("cargo:rustc-link-lib=unwind");
-        }
-        println!("cargo:rustc-link-lib=c");
-        println!("cargo:rustc-link-lib=compiler_rt");
-    }
-}
-
-fn build_libbacktrace(host: &str, target: &str) -> Result<(), ()> {
-    let native = native_lib_boilerplate("libbacktrace", "libbacktrace", "backtrace", ".libs")?;
-    let cflags = env::var("CFLAGS").unwrap_or_default() + " -fvisibility=hidden -O2";
-
-    run(Command::new("sh")
-                .current_dir(&native.out_dir)
-                .arg(native.src_dir.join("configure").to_str().unwrap()
-                                   .replace("C:\\", "/c/")
-                                   .replace("\\", "/"))
-                .arg("--with-pic")
-                .arg("--disable-multilib")
-                .arg("--disable-shared")
-                .arg("--disable-host-shared")
-                .arg(format!("--host={}", build_helper::gnu_target(target)))
-                .arg(format!("--build={}", build_helper::gnu_target(host)))
-                .env("CFLAGS", cflags));
-
-    run(Command::new(build_helper::make(host))
-                .current_dir(&native.out_dir)
-                .arg(format!("INCDIR={}", native.src_dir.display()))
-                .arg("-j").arg(env::var("NUM_JOBS").expect("NUM_JOBS was not set")));
-    Ok(())
-}

ctr-std/src/panicking.rs

@@ -76,9 +76,7 @@ static mut HOOK: Hook = Hook::Default;
 /// is invoked. As such, the hook will run with both the aborting and unwinding
 /// runtimes. The default hook prints a message to standard error and generates
 /// a backtrace if requested, but this behavior can be customized with the
-/// `set_hook` and [`take_hook`] functions.
+/// `set_hook` and `take_hook` functions.
-///
-/// [`take_hook`]: ./fn.take_hook.html
 ///
 /// The hook is provided with a `PanicInfo` struct which contains information
 /// about the origin of the panic, including the payload passed to `panic!` and
@@ -123,10 +121,6 @@ pub fn set_hook(hook: Box<Fn(&PanicInfo) + 'static + Sync + Send>) {
 
 /// Unregisters the current panic hook, returning it.
 ///
-/// *See also the function [`set_hook`].*
-///
-/// [`set_hook`]: ./fn.set_hook.html
-///
 /// If no custom hook is registered, the default hook will be returned.
 ///
 /// # Panics
@@ -197,9 +191,33 @@ fn default_hook(info: &PanicInfo) {
     let thread = thread_info::current_thread();
     let name = thread.as_ref().and_then(|t| t.name()).unwrap_or("<unnamed>");
 
+    // 3DS-specific code begins here to display panics via the Error applet
+    use libctru::{errorInit, errorText, errorDisp, errorConf, ERROR_TEXT_WORD_WRAP,
+                  CFG_LANGUAGE_EN, consoleDebugInit, debugDevice_SVC};
+
+    let error_text = format!("thread '{}' panicked at '{}', {}", name, msg, location);
+
+    unsafe {
+        // Prepare error message for display
+        let mut error_conf: errorConf = mem::uninitialized();
+        errorInit(&mut error_conf,
+                  ERROR_TEXT_WORD_WRAP,
+                  CFG_LANGUAGE_EN);
+        errorText(&mut error_conf, error_text.as_ptr() as *const ::libc::c_char);
+
+        // Display the error
+        errorDisp(&mut error_conf);
+    }
+
+    // Let's also write to stderr using the debug console. The output will be
+    // visible in Citra if a custom logging filter such as `Debug.Emulated:Debug`
+    // is enabled in the logging section of `~/.config/citra-emu/sdl2-config.ini`
+    unsafe {
+        consoleDebugInit(debugDevice_SVC);
+    }
+
     let write = |err: &mut ::io::Write| {
-        let _ = writeln!(err, "thread '{}' panicked at '{}', {}",
+        let _ = write!(err, "{}", error_text);
-                         name, msg, location);
 
         #[cfg(feature = "backtrace")]
         {

ctr-std/src/path.rs

@@ -201,6 +201,9 @@ impl<'a> Prefix<'a> {
             os_str_as_u8_slice(s).len()
         }
         match *self {
+	    #[cfg(target_os = "horizon")]
+            Verbatim(x) => 1 + os_str_len(x),
+            #[cfg(target_os = "windows")]
             Verbatim(x) => 4 + os_str_len(x),
             VerbatimUNC(x, y) => {
                 8 + os_str_len(x) +