Your message dated Sat, 24 Feb 2018 19:50:33 +0000
with message-id <[email protected]>
and subject line Bug#890401: fixed in llvm-toolchain-6.0 1:6.0~+rc3-1
has caused the Debian Bug report #890401,
regarding llvm-toolchain-4.0: Please include patch to fix code generation on
sparc64
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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immediately.)
--
890401: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=890401
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: llvm-toolchain-4.0
Version: 1:4.0.1-10
Severity: normal
Tags: patch
User: [email protected]
Usertags: sparc64
Hello!
In order to get the Rust compiler work on sparc64, we need another
LLVM patch which is currently being upstreamed [1] which fixes the
code generation on sparc64.
Without the patch, LLVM generates invalid code that binutils stumbles
over and crashes with an internal error [2]. With the patch merged,
LLVM is working properly and allows a full native build of the Rust
compiler on sparc64 :).
Since Rust upstream is currently still on LLVM 4.0, even for Rust
1.24, it would be nice to have the patch merged for the 4.0 version
as well as the 6.0 version of the llvm-toolchain package. Although
we are going to convince upstream to backport the patch for 6.0.
Thanks,
Adrian
> [1] https://reviews.llvm.org/D43271
> [2] https://sourceware.org/bugzilla/show_bug.cgi?id=22832
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - [email protected]
`. `' Freie Universitaet Berlin - [email protected]
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
Description: [Sparc] Include __tls_get_addr in symbol table for TLS calls to it
Global Dynamic and Local Dynamic call relocations only implicitly
reference __tls_get_addr, but it still needs to be in the symbol table
to be bound at link time otherwise it fails to link. For details, see
https://sourceware.org/bugzilla/show_bug.cgi?id=22832.
Author: James Clarke <[email protected]>
Last-Update: 2018-02-14
--- llvm-toolchain-4.0-4.0.1.orig/lib/Target/Sparc/MCTargetDesc/SparcMCExpr.cpp
+++ llvm-toolchain-4.0-4.0.1/lib/Target/Sparc/MCTargetDesc/SparcMCExpr.cpp
@@ -194,14 +194,30 @@ static void fixELFSymbolsInTLSFixupsImpl
void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
switch(getKind()) {
default: return;
+ case VK_Sparc_TLS_GD_CALL:
+ case VK_Sparc_TLS_LDM_CALL: {
+ // The corresponding relocations reference __tls_get_addr, as they call it,
+ // but this is only implicit; there is no connection in the ELF file
+ // between the relocation and the symbol, other than the specification for
+ // the semantics of the relocations. However, the symbol must be included
+ // in our symbol table despite the lack of references to it, since it needs
+ // to be bound during linking for these relocations. For details see
+ // https://sourceware.org/bugzilla/show_bug.cgi?id=22832.
+ MCSymbol *Symbol = Asm.getContext().getOrCreateSymbol("__tls_get_addr");
+ Asm.registerSymbol(*Symbol);
+ auto ELFSymbol = cast<MCSymbolELF>(Symbol);
+ if (!ELFSymbol->isBindingSet()) {
+ ELFSymbol->setBinding(ELF::STB_GLOBAL);
+ ELFSymbol->setExternal(true);
+ }
+ LLVM_FALLTHROUGH;
+ }
case VK_Sparc_TLS_GD_HI22:
case VK_Sparc_TLS_GD_LO10:
case VK_Sparc_TLS_GD_ADD:
- case VK_Sparc_TLS_GD_CALL:
case VK_Sparc_TLS_LDM_HI22:
case VK_Sparc_TLS_LDM_LO10:
case VK_Sparc_TLS_LDM_ADD:
- case VK_Sparc_TLS_LDM_CALL:
case VK_Sparc_TLS_LDO_HIX22:
case VK_Sparc_TLS_LDO_LOX10:
case VK_Sparc_TLS_LDO_ADD:
--- End Message ---
--- Begin Message ---
Source: llvm-toolchain-6.0
Source-Version: 1:6.0~+rc3-1
We believe that the bug you reported is fixed in the latest version of
llvm-toolchain-6.0, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Sylvestre Ledru <[email protected]> (supplier of updated llvm-toolchain-6.0
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Sat, 24 Feb 2018 16:57:42 +0100
Source: llvm-toolchain-6.0
Binary: clang-6.0 clang-tools-6.0 clang-format-6.0 clang-tidy-6.0 clang-6.0-doc
libclang1-6.0 libclang1-6.0-dbg libclang-6.0-dev libclang-common-6.0-dev
libfuzzer-6.0-dev python-clang-6.0 clang-6.0-examples libllvm6.0 libllvm6.0-dbg
llvm-6.0 llvm-6.0-runtime llvm-6.0-dev llvm-6.0-tools llvm-6.0-doc
llvm-6.0-examples lld-6.0 liblld-6.0 liblld-6.0-dev lldb-6.0 liblldb-6.0
liblldb-6.0-dbg python-lldb-6.0 liblldb-6.0-dev
Architecture: source
Version: 1:6.0~+rc3-1
Distribution: unstable
Urgency: medium
Maintainer: LLVM Packaging Team <[email protected]>
Changed-By: Sylvestre Ledru <[email protected]>
Description:
clang-6.0 - C, C++ and Objective-C compiler
clang-6.0-doc - C, C++ and Objective-C compiler - Documentation
clang-6.0-examples - Clang examples
clang-format-6.0 - Tool to format C/C++/Obj-C code
clang-tidy-6.0 - clang-based C++ linter tool
clang-tools-6.0 - clang-based tools for C/C++ developments
libclang-6.0-dev - clang library - Development package
libclang-common-6.0-dev - clang library - Common development package
libclang1-6.0 - C interface to the clang library
libclang1-6.0-dbg - clang library (debug)
libfuzzer-6.0-dev - Library for coverage-guided fuzz testing
liblld-6.0 - LLVM-based linker, library
liblld-6.0-dev - LLVM-based linker, header files
liblldb-6.0 - Next generation, high-performance debugger, library
liblldb-6.0-dbg - Next generation, high-performance debugger, debugging
libraries
liblldb-6.0-dev - Next generation, high-performance debugger, header files
libllvm6.0 - Modular compiler and toolchain technologies, runtime library
libllvm6.0-dbg - Modular compiler and toolchain technologies, debugging
libraries
lld-6.0 - LLVM-based linker
lldb-6.0 - Next generation, high-performance debugger
llvm-6.0 - Modular compiler and toolchain technologies
llvm-6.0-dev - Modular compiler and toolchain technologies, libraries and
header
llvm-6.0-doc - Modular compiler and toolchain technologies, documentation
llvm-6.0-examples - Modular compiler and toolchain technologies, examples
llvm-6.0-runtime - Modular compiler and toolchain technologies, IR interpreter
llvm-6.0-tools - Modular compiler and toolchain technologies, tools
python-clang-6.0 - Clang Python Bindings
python-lldb-6.0 - Next generation, high-performance debugger, python lib
Closes: 890401
Changes:
llvm-toolchain-6.0 (1:6.0~+rc3-1) unstable; urgency=medium
.
* New snapshot release
* Move the VCS to git.
Many thanks to James Clarke for doing the conversion
.
[ John Paul Adrian Glaubitz ]
* Add proposed upstream patch by James Clarke to add the
missing __tls_get_addr symbol to the symbol table for
TLS calls on SPARC (Closes: #890401)
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