Improve backtrace formating while panicking.

- `RUST_BACKTRACE=full` prints all the informations (old behaviour)
- `RUST_BACKTRACE=(0|no)` disables the backtrace.
- `RUST_BACKTRACE=<everything else>` (including `1`) shows a simplified
  backtrace, without the function addresses and with cleaned filenames
  and symbols. Also removes some unneded frames at the beginning and the
  end.

Fixes #37783.

PR is #38165.

1 files changed, 0 insertions, 26 deletions

diff --git a/src/libstd/sys/windows/printing/gnu.rs b/src/libstd/sys/windows/printing/gnu.rs
deleted file mode 100644
index be2d5273c07..00000000000
--- a/src/libstd/sys/windows/printing/gnu.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2014 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.
-
-use io::prelude::*;
-use io;
-use libc::c_void;
-use sys::c;
-use sys::dynamic_lib::DynamicLibrary;
-use sys_common::gnu::libbacktrace;
-
-pub fn print(w: &mut Write,
-             i: isize,
-             addr: u64,
-             _process: c::HANDLE,
-             _dbghelp: &DynamicLibrary)
-              -> io::Result<()> {
-    let addr = addr as usize as *mut c_void;
-    libbacktrace::print(w, i, addr, addr)
-}