svn commit: r455198 - in head/lang/rust: . files
Jean-Sébastien Pédron
dumbbell at FreeBSD.org
Thu Nov 30 13:33:07 UTC 2017
Author: dumbbell
Date: Thu Nov 30 13:33:05 2017
New Revision: 455198
URL: https://svnweb.freebsd.org/changeset/ports/455198
Log:
lang/rust: Disable "omit frame pointers"
Before the patch, the default behavior of the compiler was to omit frame
pointers. However, even though it looks fine for the code produced
by the compiler, the compiler itself was broken. When there was a
compilation error, rustc panics to report that error. While handling
that panic, it tries to unwind the stack but fails to do so, which
results in an abort(3).
Here is an example:
$ rustc hello.rs
error: invalid reference to argument `0` (no arguments given)
--> hello.rs:2:5
|
2 | println!("Hello {}")
| ^^^^^^^^^^^^^^^^^^^^
|
= note: this error originates in a macro outside of the current crate
error: aborting due to previous error
fatal runtime error: failed to initiate panic, error 5
Abort trap (core dumped)
The problem also exists on other systems such as OpenBSD and
i686-unknown-linux-musl. "omit frame pointers" was already disabled for
i686-unknown-linux-musl:
https://github.com/rust-lang/rust/blob/88a28ff6028cf197ed6b4185d8cd4887f05e3e07/src/librustc_back/target/i686_unknown_linux_musl.rs#L22
The patch does the same for *-unknown-freebsd.
See the upstream bug for more informations:
https://github.com/rust-lang/rust/issues/43575
Modified:
head/lang/rust/Makefile
head/lang/rust/files/patch-src_librustc__back_target_freebsd__base.rs
Modified: head/lang/rust/Makefile
==============================================================================
--- head/lang/rust/Makefile Thu Nov 30 13:00:44 2017 (r455197)
+++ head/lang/rust/Makefile Thu Nov 30 13:33:05 2017 (r455198)
@@ -3,7 +3,7 @@
PORTNAME= rust
PORTVERSION?= 1.22.1
-PORTREVISION?= 1
+PORTREVISION?= 2
CATEGORIES= lang
MASTER_SITES= http://static.rust-lang.org/dist/:src \
LOCAL/dumbbell/rust:rust_bootstrap \
Modified: head/lang/rust/files/patch-src_librustc__back_target_freebsd__base.rs
==============================================================================
--- head/lang/rust/files/patch-src_librustc__back_target_freebsd__base.rs Thu Nov 30 13:00:44 2017 (r455197)
+++ head/lang/rust/files/patch-src_librustc__back_target_freebsd__base.rs Thu Nov 30 13:33:05 2017 (r455198)
@@ -1,12 +1,13 @@
Return struct like OpenBSD, see src/librustc_trans/cabi_x86.rs
---- src/librustc_back/target/freebsd_base.rs.orig 2017-07-17 22:10:50 UTC
+--- src/librustc_back/target/freebsd_base.rs.orig 2017-11-22 21:33:00 UTC
+++ src/librustc_back/target/freebsd_base.rs
-@@ -31,6 +31,7 @@ pub fn opts() -> TargetOptions {
+@@ -31,6 +31,8 @@ pub fn opts() -> TargetOptions {
target_family: Some("unix".to_string()),
linker_is_gnu: true,
has_rpath: true,
+ is_like_openbsd: true,
++ eliminate_frame_pointer: false,
pre_link_args: args,
position_independent_executables: true,
- exe_allocation_crate: super::maybe_jemalloc(),
+ relro_level: RelroLevel::Full,
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