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[tor-commits] [tor-browser-build/master] Bug 30376: Use Rust 1.34 for Tor Browser 9



commit d4f7c37aefc702fb9a66604cdf05bd8977036fc8
Author: Georg Koppen <gk@xxxxxxxxxxxxxx>
Date:   Wed Aug 7 19:34:23 2019 +0000

    Bug 30376: Use Rust 1.34 for Tor Browser 9
    
    Use 1.34 for tor Rust support on nightly builds as well.
---
 projects/rust/build            |  15 +---
 projects/rust/config           |  19 ++---
 projects/rust/unwind.patch     | 102 +++++++++++++-------------
 projects/rust/unwind_128.patch | 161 -----------------------------------------
 projects/tor/config            |   6 --
 5 files changed, 61 insertions(+), 242 deletions(-)

diff --git a/projects/rust/build b/projects/rust/build
index 0df84a1..633604c 100644
--- a/projects/rust/build
+++ b/projects/rust/build
@@ -59,11 +59,7 @@ cd /var/tmp/build/rustc-[% c('version') %]-src
   # See: https://github.com/rust-lang/rust/issues/12859 for discussion about
   # that and https://github.com/rust-lang/rust/pull/49633 for a newer attempt to
   # fix this problem. We apply the patch from neersighted.
-  [% IF !c("input_file_var/unwind_128") %]
-    patch -p1 < $rootdir/unwind.patch
-  [% ELSE %]
-    patch -p1 < $rootdir/unwind_128.patch
-  [% END %]
+  patch -p1 < $rootdir/unwind.patch
 [% END %]
 
 [% IF c("var/android") %]
@@ -78,15 +74,6 @@ mkdir build
 cd build
 ../configure --prefix=$distdir [% c("var/configure_opt") %]
 
-# We need to disable Thin LTO due to reproducibility issues on macOS and
-# probably Linux. Alas, there is no direct option available in the config.toml
-# in 1.26.1 yet, so we need to toggle this indirectly via `codegen-units`.
-[% IF c("var/osx") || c("var/linux") %]
-  # It seems hard to pass the proper value via ./configure so we resort to our
-  # old friend `sed`.
-  sed -i 's/#codegen-units = 1/codegen-units = 1/' config.toml
-[% END %]
-
 make -j[% c("buildconf/num_procs") %]
 make install
 cd /var/tmp/dist
diff --git a/projects/rust/config b/projects/rust/config
index d784d39..011920b 100644
--- a/projects/rust/config
+++ b/projects/rust/config
@@ -1,15 +1,9 @@
 # vim: filetype=yaml sw=2
 filename: '[% project %]-[% c("version") %]-[% c("var/build_id") %].tar.gz'
-version: '[% c("input_file_var/rust_version") %]'
-
-# those values can be changed from the input_files section of other
-# projects. See projects/tor/config and bug 28260.
-input_file_var:
-  rust_version: 1.26.1
-  prev_version: 1.25.0
+version: 1.34.2
 
 var:
-  prev_version: '[% c("input_file_var/prev_version") %]'
+  prev_version: 1.33.0
   rust_arch: '[% c("arch") %]'
   container:
     use_container: 1
@@ -55,6 +49,9 @@ targets:
       #
       # `--enable-extended` to build not only rustc but cargo as well
       #
+      # `--enable-llvm-static-stdccp` to take a libstdc++ on Wheezy into account
+      # which is too old and if used gives undefined reference errors
+      #
       # `--release-channel=stable` to just include stable features in the
       # compiler
       #
@@ -72,7 +69,7 @@ targets:
       # version mismatch. We avoid that with this configure option. We need to
       # build our own GCC in the first place as 4.7.2 is too old to get all the
       # Rust pieces compiled.
-      configure_opt: --enable-local-rust --enable-vendor --enable-extended --release-channel=stable --sysconfdir=etc --target=x86_64-unknown-linux-gnu,i686-unknown-linux-gnu --set=target.x86_64-unknown-linux-gnu.cc=gcc --set=target.i686-unknown-linux-gnu.cc=gcc
+      configure_opt: --enable-local-rust --enable-vendor --enable-extended --enable-llvm-static-stdcpp --release-channel=stable --sysconfdir=etc --target=x86_64-unknown-linux-gnu,i686-unknown-linux-gnu --set=target.x86_64-unknown-linux-gnu.cc=gcc --set=target.i686-unknown-linux-gnu.cc=gcc
 
   osx-x86_64:
     var:
@@ -107,9 +104,7 @@ input_files:
     file_gpg_id: 1
     gpg_keyring: rust.gpg
   - filename: unwind.patch
-    enable: '[% c("var/windows-i686") && !c("input_file_var/unwind_128") %]'
-  - filename: unwind_128.patch
-    enable: '[% c("input_file_var/unwind_128") %]'
+    enable: '[% c("var/windows-i686") %]'
   - filename: replace_pagesize_in_mmap.patch
     enable: '[% c("var/android") %]'
   - filename: 0001-Make-sure-dl_iterate_phdr-is-undefined-on-Android.patch
diff --git a/projects/rust/unwind.patch b/projects/rust/unwind.patch
index 3a191b9..7b22dcb 100644
--- a/projects/rust/unwind.patch
+++ b/projects/rust/unwind.patch
@@ -1,6 +1,6 @@
-From dd808373aefe6247975455006bbfb89aa6410ed9 Mon Sep 17 00:00:00 2001
+From b3bea7008ece7a5bdf9b5a5dcc95e82febad1854 Mon Sep 17 00:00:00 2001
 From: Bjorn Neergaard <bjorn@xxxxxxxxxxxxxxx>
-Date: Tue, 3 Apr 2018 19:01:07 -0600
+Date: Sat, 9 Feb 2019 19:39:23 +0000
 Subject: [PATCH] Fix cross-compiling i686-pc-windows-gnu from Linux
 
 This is still very rough and serves as a proof-of-concept for fixing
@@ -32,49 +32,49 @@ rethinking of how iOS is special-cased above, to avoid further
 duplication. Input on how to best structure this file is requested.
 
 diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs
-index e6aa78fba5..624f2ccfbe 100644
+index 249a183189..df08d6eb0c 100644
 --- a/src/bootstrap/compile.rs
 +++ b/src/bootstrap/compile.rs
-@@ -146,6 +146,11 @@ pub fn std_cargo(build: &Builder,
-         cargo.env("MACOSX_DEPLOYMENT_TARGET", target);
-     }
- 
-+    // FIXME: Temporary detection of SJLJ MinGW compilers.
-+    if build.build.build.contains("linux") && target == "i686-pc-windows-gnu" {
-+        features.push_str(" sjlj_eh");
-+    }
+@@ -162,7 +162,12 @@ pub fn std_cargo(builder: &Builder<'_>,
+             .arg("--features")
+             .arg("compiler-builtins-mem");
+     } else {
+-        let features = builder.std_features();
++        let mut features = builder.std_features();
 +
-     // When doing a local rebuild we tell cargo that we're stage1 rather than
-     // stage0. This works fine if the local rust and being-built rust have the
-     // same view of what the default allocator is, but fails otherwise. Since
++        // FIXME: Temporary detection of SJLJ MinGW compilers.
++        if builder.config.build.contains("linux") && target == "i686-pc-windows-gnu" {
++            features.push_str(" sjlj_eh");
++        }
+ 
+         if compiler.stage != 0 && builder.config.sanitizers {
+             // This variable is used by the sanitizer runtime crates, e.g.
 diff --git a/src/libstd/Cargo.toml b/src/libstd/Cargo.toml
-index 1201759885..a06ef7e0e6 100644
+index 7d60a17042..d876d0b89a 100644
 --- a/src/libstd/Cargo.toml
 +++ b/src/libstd/Cargo.toml
-@@ -49,3 +49,4 @@ force_alloc_system = []
- panic-unwind = ["panic_unwind"]
- profiler = ["profiler_builtins"]
- wasm_syscall = []
+@@ -71,3 +71,4 @@ wasm-bindgen-threads = []
+ # https://github.com/rust-lang-nursery/stdsimd/blob/master/crates/std_detect/Cargo.toml
+ std_detect_file_io = []
+ std_detect_dlsym_getauxval = []
 +sjlj_eh = ["unwind/sjlj_eh"]
 diff --git a/src/libunwind/Cargo.toml b/src/libunwind/Cargo.toml
-index fbd9789d2f..15a20d7ff4 100644
+index 2378b0a315..0b5979ed62 100644
 --- a/src/libunwind/Cargo.toml
 +++ b/src/libunwind/Cargo.toml
-@@ -14,3 +14,7 @@ doc = false
- [dependencies]
+@@ -16,3 +16,6 @@ doc = false
  core = { path = "../libcore" }
- libc = { path = "../rustc/libc_shim" }
+ libc = { version = "0.2.43", features = ['rustc-dep-of-std'], default-features = false }
+ compiler_builtins = "0.1.0"
 +
 +[features]
 +sjlj_eh = []
-+
 diff --git a/src/libunwind/libunwind.rs b/src/libunwind/libunwind.rs
-index aa73b11fb3..16c21be736 100644
+index 339b554ed6..ec2f93ed60 100644
 --- a/src/libunwind/libunwind.rs
 +++ b/src/libunwind/libunwind.rs
-@@ -10,11 +10,6 @@
- 
- #![allow(bad_style)]
+@@ -1,10 +1,5 @@
+ #![allow(nonstandard_style)]
  
 -macro_rules! cfg_if {
 -    ( $( if #[cfg( $meta:meta )] { $($it1:item)* } else { $($it2:item)* } )* ) =>
@@ -84,15 +84,18 @@ index aa73b11fb3..16c21be736 100644
  use libc::{c_int, c_void, uintptr_t};
  
  #[repr(C)]
-@@ -85,7 +80,6 @@ pub type _Unwind_Exception_Cleanup_Fn = extern "C" fn(unwind_code: _Unwind_Reaso
+@@ -73,8 +68,8 @@ pub enum _Unwind_Context {}
+ pub type _Unwind_Exception_Cleanup_Fn = extern "C" fn(unwind_code: _Unwind_Reason_Code,
+                                                       exception: *mut _Unwind_Exception);
  extern "C" {
-     #[cfg_attr(stage0, unwind)]
-     #[cfg_attr(not(stage0), unwind(allowed))]
+-    #[unwind(allowed)]
 -    pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
++    #[cfg_attr(stage0, unwind)]
++    #[cfg_attr(not(stage0), unwind(allowed))]
      pub fn _Unwind_DeleteException(exception: *mut _Unwind_Exception);
      pub fn _Unwind_GetLanguageSpecificData(ctx: *mut _Unwind_Context) -> *mut c_void;
      pub fn _Unwind_GetRegionStart(ctx: *mut _Unwind_Context) -> _Unwind_Ptr;
-@@ -217,28 +211,52 @@ if #[cfg(all(any(target_os = "ios", not(target_arch = "arm"))))] {
+@@ -206,26 +201,52 @@ if #[cfg(all(any(target_os = "ios", target_os = "netbsd", not(target_arch = "arm
          pc
      }
  }
@@ -104,17 +107,13 @@ index aa73b11fb3..16c21be736 100644
 +if #[cfg(all(target_os = "ios", target_arch = "arm"))] {
 +    // 32-bit iOS uses SjLj and does not provide _Unwind_Backtrace()
      extern "C" {
-         #[cfg_attr(stage0, unwind)]
-         #[cfg_attr(not(stage0), unwind(allowed))]
+-        #[unwind(allowed)]
 -        pub fn _Unwind_RaiseException(exception: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
--        pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
--                                 trace_argument: *mut c_void)
--                                 -> _Unwind_Reason_Code;
++        #[cfg_attr(stage0, unwind)]
++        #[cfg_attr(not(stage0), unwind(allowed))]
 +        pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
 +        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-     }
--} else {
--    // 32-bit iOS uses SjLj and does not provide _Unwind_Backtrace()
++    }
 +
 +    #[inline]
 +    pub unsafe fn _Unwind_RaiseException(exc: *mut _Unwind_Exception) -> _Unwind_Reason_Code {
@@ -122,15 +121,20 @@ index aa73b11fb3..16c21be736 100644
 +    }
 +
 +} else if #[cfg(feature = "sjlj_eh")] {
-     extern "C" {
-         #[cfg_attr(stage0, unwind)]
-         #[cfg_attr(not(stage0), unwind(allowed))]
++    extern "C" {
++        #[cfg_attr(stage0, unwind)]
++        #[cfg_attr(not(stage0), unwind(allowed))]
 +        pub fn _Unwind_SjLj_Resume(e: *mut _Unwind_Exception) -> !;
-         pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-+        pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
-+                                 trace_argument: *mut c_void)
-+                                 -> _Unwind_Reason_Code;
-+    }
++        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
+         pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
+                                  trace_argument: *mut c_void)
+                                  -> _Unwind_Reason_Code;
+     }
+-} else {
+-    // 32-bit iOS uses SjLj and does not provide _Unwind_Backtrace()
+-    extern "C" {
+-        #[unwind(allowed)]
+-        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
 +
 +    #[inline]
 +    pub unsafe fn _Unwind_Resume(exc: *mut _Unwind_Exception) -> ! {
@@ -154,5 +158,5 @@ index aa73b11fb3..16c21be736 100644
  }
  } // cfg_if!
 -- 
-2.17.1
+2.23.0.rc0
 
diff --git a/projects/rust/unwind_128.patch b/projects/rust/unwind_128.patch
deleted file mode 100644
index 93528c9..0000000
--- a/projects/rust/unwind_128.patch
+++ /dev/null
@@ -1,161 +0,0 @@
-From 0a186eafebf26ca01879827a4cc95cc274791334 Mon Sep 17 00:00:00 2001
-From: Bjorn Neergaard <bjorn@xxxxxxxxxxxxxxx>
-Date: Sat, 9 Feb 2019 19:39:23 +0000
-Subject: [PATCH] Fix cross-compiling i686-pc-windows-gnu from Linux
-
-This is still very rough and serves as a proof-of-concept for fixing
-Linux -> 32-bit MinGW cross compilation workflow. Currently, clang and
-GCC's MinGW targets both only support DW2 (DWARF) or SJLJ (Set Jump Long
-Jump) unwinding on 32-bit Windows.
-
-The default for GCC (and the way it is shipped on every major distro) is
-to use SJLJ on Windows, as DWARF cannot traverse non-DWARF frames. This
-would work fine, except for the fact that libgcc (our C runtime on the
-MinGW platform) exports symbols under a different name when configured
-to use SJLJ-style unwinding, and uses a preprocessor macro internally to
-alias them.
-
-Because of this, we have to detect this scenario and link to the correct
-symbols ourselves. Linking has been tested with a full bootstrap on both
-x86_64-unknown-linux-gnu and i686-pc-windows-gnu, as well as
-cross-compilation of some of my own projects.
-
-Obviously, the detection is a bit unrefined. Right now we
-unconditionally use SJLJ when compiling Linux -> MinGW. I'd like to add
-feature detection using compiler build flags or autotools-style
-compilation and object analysis. Input on the best way to proceed here
-is welcome.
-
-Also, currently there is copy-pasted/duplicated code in libunwind.
-Ideally, this could be reduced, but this would likely require a
-rethinking of how iOS is special-cased above, to avoid further
-duplication. Input on how to best structure this file is requested.
-
-diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs
-index 11d9154ba6..bd8ff844f7 100644
---- a/src/bootstrap/compile.rs
-+++ b/src/bootstrap/compile.rs
-@@ -154,6 +154,11 @@ pub fn std_cargo(builder: &Builder,
-     } else {
-         let mut features = builder.std_features();
- 
-+        // FIXME: Temporary detection of SJLJ MinGW compilers.
-+        if builder.config.build.contains("linux") && target == "i686-pc-windows-gnu" {
-+            features.push_str(" sjlj_eh");
-+        }
-+
-         // When doing a local rebuild we tell cargo that we're stage1 rather than
-         // stage0. This works fine if the local rust and being-built rust have the
-         // same view of what the default allocator is, but fails otherwise. Since
-diff --git a/src/libstd/Cargo.toml b/src/libstd/Cargo.toml
-index 5a2dce5930..e1c876f503 100644
---- a/src/libstd/Cargo.toml
-+++ b/src/libstd/Cargo.toml
-@@ -50,3 +50,4 @@ force_alloc_system = []
- panic-unwind = ["panic_unwind"]
- profiler = ["profiler_builtins"]
- wasm_syscall = []
-+sjlj_eh = ["unwind/sjlj_eh"]
-diff --git a/src/libunwind/Cargo.toml b/src/libunwind/Cargo.toml
-index 4760461df6..27c7303604 100644
---- a/src/libunwind/Cargo.toml
-+++ b/src/libunwind/Cargo.toml
-@@ -15,3 +15,6 @@ doc = false
- core = { path = "../libcore" }
- libc = { path = "../rustc/libc_shim" }
- compiler_builtins = { path = "../rustc/compiler_builtins_shim" }
-+
-+[features]
-+sjlj_eh = []
-diff --git a/src/libunwind/libunwind.rs b/src/libunwind/libunwind.rs
-index 73a259bd44..ff3404864f 100644
---- a/src/libunwind/libunwind.rs
-+++ b/src/libunwind/libunwind.rs
-@@ -10,11 +10,6 @@
- 
- #![allow(bad_style)]
- 
--macro_rules! cfg_if {
--    ( $( if #[cfg( $meta:meta )] { $($it1:item)* } else { $($it2:item)* } )* ) =>
--        ( $( $( #[cfg($meta)] $it1)* $( #[cfg(not($meta))] $it2)* )* )
--}
--
- use libc::{c_int, c_void, uintptr_t};
- 
- #[repr(C)]
-@@ -83,8 +78,8 @@ pub enum _Unwind_Context {}
- pub type _Unwind_Exception_Cleanup_Fn = extern "C" fn(unwind_code: _Unwind_Reason_Code,
-                                                       exception: *mut _Unwind_Exception);
- extern "C" {
--    #[unwind(allowed)]
--    pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
-+    #[cfg_attr(stage0, unwind)]
-+    #[cfg_attr(not(stage0), unwind(allowed))]
-     pub fn _Unwind_DeleteException(exception: *mut _Unwind_Exception);
-     pub fn _Unwind_GetLanguageSpecificData(ctx: *mut _Unwind_Context) -> *mut c_void;
-     pub fn _Unwind_GetRegionStart(ctx: *mut _Unwind_Context) -> _Unwind_Ptr;
-@@ -216,26 +211,52 @@ if #[cfg(all(any(target_os = "ios", target_os = "netbsd", not(target_arch = "arm
-         pc
-     }
- }
-+} // cfg_if!
- 
--if #[cfg(not(all(target_os = "ios", target_arch = "arm")))] {
--    // Not 32-bit iOS
-+cfg_if! {
-+if #[cfg(all(target_os = "ios", target_arch = "arm"))] {
-+    // 32-bit iOS uses SjLj and does not provide _Unwind_Backtrace()
-     extern "C" {
--        #[unwind(allowed)]
--        pub fn _Unwind_RaiseException(exception: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-+        #[cfg_attr(stage0, unwind)]
-+        #[cfg_attr(not(stage0), unwind(allowed))]
-+        pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
-+        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-+    }
-+
-+    #[inline]
-+    pub unsafe fn _Unwind_RaiseException(exc: *mut _Unwind_Exception) -> _Unwind_Reason_Code {
-+        _Unwind_SjLj_RaiseException(exc)
-+    }
-+
-+} else if #[cfg(feature = "sjlj_eh")] {
-+    extern "C" {
-+        #[cfg_attr(stage0, unwind)]
-+        #[cfg_attr(not(stage0), unwind(allowed))]
-+        pub fn _Unwind_SjLj_Resume(e: *mut _Unwind_Exception) -> !;
-+        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-         pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
-                                  trace_argument: *mut c_void)
-                                  -> _Unwind_Reason_Code;
-     }
--} else {
--    // 32-bit iOS uses SjLj and does not provide _Unwind_Backtrace()
--    extern "C" {
--        #[unwind(allowed)]
--        pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-+
-+    #[inline]
-+    pub unsafe fn _Unwind_Resume(exc: *mut _Unwind_Exception) -> ! {
-+        _Unwind_SjLj_Resume(exc)
-     }
- 
-     #[inline]
-     pub unsafe fn _Unwind_RaiseException(exc: *mut _Unwind_Exception) -> _Unwind_Reason_Code {
-         _Unwind_SjLj_RaiseException(exc)
-     }
-+} else {
-+    extern "C" {
-+        #[cfg_attr(stage0, unwind)]
-+        #[cfg_attr(not(stage0), unwind(allowed))]
-+        pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
-+        pub fn _Unwind_RaiseException(exception: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
-+        pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
-+                                 trace_argument: *mut c_void)
-+                                 -> _Unwind_Reason_Code;
-+    }
- }
- } // cfg_if!
--- 
-2.20.1
-
diff --git a/projects/tor/config b/projects/tor/config
index 35b37ce..682cfd3 100644
--- a/projects/tor/config
+++ b/projects/tor/config
@@ -59,10 +59,4 @@ input_files:
     project: '[% c("var/compiler") %]'
   - name: rust
     project: rust
-    # Tor needs rust >= 1.28.0
-    # See bug 28260
-    input_file_var:
-      rust_version: 1.28.0
-      prev_version: 1.27.2
-      unwind_128: '[% c("var/windows-i686") %]'
     enable: '[% !c("var/android") && c("var/nightly") %]'

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