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nixpkgs/pkgs/development/tools/rust/rustup/0001-use-hardcoded-dynamic-linker.patch
2017-04-17 15:53:36 +02:00

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From 36c053f37670c6003f9e8dc001741f7c49e9526a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Sat, 15 Apr 2017 20:42:10 +0200
Subject: [PATCH] use hardcoded dynamic-linker
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Jörg Thalheim <joerg@thalheim.io>
---
src/rustup-cli/common.rs | 3 ++-
src/rustup/toolchain.rs | 22 ++++++++++++++++++++--
2 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/src/rustup-cli/common.rs b/src/rustup-cli/common.rs
index 1abf345..21096e7 100644
--- a/src/rustup-cli/common.rs
+++ b/src/rustup-cli/common.rs
@@ -220,7 +220,8 @@ pub fn rustc_version(toolchain: &Toolchain) -> String {
if toolchain.exists() {
let rustc_path = toolchain.binary_file("rustc");
if utils::is_file(&rustc_path) {
- let mut cmd = Command::new(&rustc_path);
+ let mut cmd = Command::new("@dynamicLinker@");
+ cmd.arg(&rustc_path);
cmd.arg("--version");
toolchain.set_ldpath(&mut cmd);
diff --git a/src/rustup/toolchain.rs b/src/rustup/toolchain.rs
index dc29c32..212a4ab 100644
--- a/src/rustup/toolchain.rs
+++ b/src/rustup/toolchain.rs
@@ -315,7 +315,7 @@ impl<'a> Toolchain<'a> {
}
Path::new(&binary)
};
- let mut cmd = Command::new(&path);
+ let mut cmd = wrap_elf_interpreter(&path);
self.set_env(&mut cmd);
Ok(cmd)
}
@@ -363,7 +363,7 @@ impl<'a> Toolchain<'a> {
} else {
src_file
};
- let mut cmd = Command::new(exe_path);
+ let mut cmd = wrap_elf_interpreter(exe_path);
self.set_env(&mut cmd);
cmd.env("RUSTUP_TOOLCHAIN", &primary_toolchain.name);
Ok(cmd)
@@ -648,3 +648,21 @@ impl<'a> Toolchain<'a> {
path
}
}
+
+fn wrap_elf_interpreter<S: AsRef<OsStr>>(p: S) -> Command {
+ use std::fs::File;
+ use std::io::Read;
+ let path = Path::new(&p);
+ let is_elf = File::open(path).map(|mut f| {
+ let mut buf = [0; 4];
+ let _ = f.read(&mut buf);
+ buf == b"\x7fELF"[..]
+ }).unwrap_or(false);
+ if is_elf {
+ let mut cmd = Command::new("@dynamicLinker@");
+ cmd.arg(&path);
+ cmd
+ } else {
+ Command::new(&path)
+ }
+}
--
2.12.2