NetBSD Problem Report #59435

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Date: Tue, 20 May 2025 20:38:28 +0000 (UTC)
From: david@gutteridge.ca
Reply-To: david@gutteridge.ca
To: gnats-bugs@NetBSD.org
Subject: lang/rust fails to build on NetBSD 9.x (e.g., 9.4_STABLE) after the llvm 19 update
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>Number:         59435
>Category:       pkg
>Synopsis:       lang/rust fails to build on NetBSD 9.x (e.g., 9.4_STABLE) after the llvm 19 update
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 20 20:40:00 +0000 2025
>Closed-Date:    Mon Jun 23 22:56:10 +0000 2025
>Last-Modified:  Mon Jun 23 22:56:10 +0000 2025
>Originator:     David H. Gutteridge
>Release:        pkgsrc -current
>Organization:
TNF
>Environment:
>Description:
lang/rust fails to build on NetBSD 9.x (e.g., 9.4_STABLE) after the llvm 19 update.

This can be seen in bulk build reports, e.g.,
http://www.ki.nu/pkgsrc/reports/current/NetBSD-9.0/20250517.1036/rust-1.85.1nb3/build.log

   Compiling compiler_builtins v0.1.140
   Compiling rustc-std-workspace-core v1.99.0 (/tmp/lang/rust/work/rustc-1.85.1-src/library/rustc-std-workspace-core)
error: failed to prepare thin LTO module: Invalid alignment value (Producer: 'LLVM19.1.7' Reader: 'LLVM 19.1.7')

   Compiling alloc v0.0.0 (/tmp/lang/rust/work/rustc-1.85.1-src/library/alloc)
   Compiling cfg-if v1.0.0
   Compiling unwind v0.0.0 (/tmp/lang/rust/work/rustc-1.85.1-src/library/unwind)
error: could not compile `core` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: failed to parse bitcode for LTO module: Invalid alignment value (Producer: 'LLVM19.1.7' Reader: 'LLVM 19.1.7')

error: could not compile `compiler_builtins` (lib) due to 1 previous error
error: could not compile `alloc` (lib) due to 1 previous error
Build completed unsuccessfully in 1:06:02

I can reproduce this in my 9.4_STABLE pbulk build environment.
>How-To-Repeat:
Try to build lang/rust.
>Fix:
I'm testing rebuilding using the (non-default) rust-internal-llvm option.

>Release-Note:

>Audit-Trail:
From: Thomas Klausner <wiz@gatalith.at>
To: david@gutteridge.ca
Cc: NetBSD bugtracking <gnats-bugs@NetBSD.org>
Subject: Re: pkg/59435: lang/rust fails to build on NetBSD 9.x (e.g.,
 9.4_STABLE) after the llvm 19 update
Date: Tue, 20 May 2025 23:31:20 +0200

 On Tue, May 20, 2025 at 08:40:01PM +0000, david@gutteridge.ca wrote:
 > >Number:         59435
 > >Category:       pkg
 > >Synopsis:       lang/rust fails to build on NetBSD 9.x (e.g., 9.4_STABLE) after the llvm 19 update

 Can you please also try wip/rust186?

 Thanks,
 Thomas

From: "David H. Gutteridge" <david@gutteridge.ca>
To: Thomas Klausner <wiz@gatalith.at>, Gnats Bugs <gnats-bugs@netbsd.org>
Cc: 
Subject: Re: pkg/59435: lang/rust fails to build on NetBSD 9.x (e.g.,
 9.4_STABLE) after the llvm 19 update
Date: Wed, 21 May 2025 08:33:42 -0400

 On 2025-05-20 17:31, Thomas Klausner wrote:
 > On Tue, May 20, 2025 at 08:40:01PM +0000, david@gutteridge.ca wrote: 
 > Number:         59435
 > Category:       pkg
 > Synopsis:       lang/rust fails to build on NetBSD 9.x (e.g., 
 > 9.4_STABLE) after the llvm 19 update

 > Can you please also try wip/rust186?

 It fails the same way.

     Compiling compiler_builtins v0.1.146
     Compiling rustc-std-workspace-core v1.99.0 
 (/tmp/work/rustc-1.86.0-src/library/rustc-std-workspace-core)
     Compiling alloc v0.0.0 (/tmp/work/rustc-1.86.0-src/library/alloc)
     Compiling cfg-if v1.0.0
     Compiling memchr v2.7.4
     Compiling adler2 v2.0.0
     Compiling rustc-demangle v0.1.24
     Compiling unwind v0.0.0 (/tmp/work/rustc-1.86.0-src/library/unwind)
 error: failed to parse bitcode for LTO module: Invalid alignment value 
 (Producer: 'LLVM19.1.7' Reader: 'LLVM 19.1.7')

 error: could not compile `compiler_builtins` (lib) due to 1 previous 
 error
 warning: build failed, waiting for other jobs to finish...
 error: could not compile `core` (lib) due to 1 previous error
 error: could not compile `rustc-demangle` (lib) due to 1 previous error
 error: could not compile `memchr` (lib) due to 1 previous error
 error: could not compile `alloc` (lib) due to 1 previous error

 Building lang/rust with the rust-internal-llvm option works, as one
 might expect.

 Dave

From: "Havard Eidnes" <he@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/59435 CVS commit: pkgsrc/lang/rust
Date: Sat, 21 Jun 2025 14:53:02 +0000

 Module Name:	pkgsrc
 Committed By:	he
 Date:		Sat Jun 21 14:53:02 UTC 2025

 Modified Files:
 	pkgsrc/lang/rust: options.mk

 Log Message:
 lang/rust: on NetBSD/amd64 9.x, use a newer GCC.

 Apparently, using pkgsrc LLVM 19.x does not work on
 NetBSD/x86_64 9.x unless rust is built with a newer
 gcc than the platform-included 7.5.0.  Ref.
 https://gnats.netbsd.org/59435 (PR#59435) and
 https://mail-index.netbsd.org/pkgsrc-users/2025/05/20/msg041603.html
 and following discussion.


 To generate a diff of this commit:
 cvs rdiff -u -r1.46 -r1.47 pkgsrc/lang/rust/options.mk

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

State-Changed-From-To: open->closed
State-Changed-By: gutteridge@NetBSD.org
State-Changed-When: Mon, 23 Jun 2025 22:56:10 +0000
State-Changed-Why:
Issue resolved by he@, thanks!

>Unformatted:

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