NetBSD Problem Report #60362

From martin@duskware.de  Wed Jun 24 10:20:41 2026
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Date: Wed, 24 Jun 2026 12:20:33 +0200 (CEST)
From: martin@NetBSD.org
Reply-To: martin@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: gdb can not insert breakpoints on aarch64
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>Number:         60362
>Category:       toolchain
>Synopsis:       gdb can not insert breakpoints on aarch64
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    skrll
>State:          feedback
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 24 10:25:00 +0000 2026
>Closed-Date:    
>Last-Modified:  Fri Jul 10 17:37:58 +0000 2026
>Originator:     Martin Husemann
>Release:        NetBSD 11.99.6
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD out-of-the-silent-planet.aprisoft.de 11.99.6 NetBSD 11.99.6 (GENERIC64) #558: Wed Jun 10 10:10:05 CEST 2026 martin@seven-days-to-the-wolves.aprisoft.de:/work/src/sys/arch/evbarm/compile/GENERIC64 evbarm
Architecture: aarch64
Machine: evbarm
>Description:

Try to run a program under gdb with breakpoints:

 > gdb ls
gdb: warning: A handler for the OS ABI "NetBSD" is not built into this configuration
of GDB.  Attempting to continue with the default aarch64 settings.

GNU gdb (GDB) 17.1
[..]
Reading symbols from ls...
Reading symbols from /usr/libdata/debug/bin/ls.debug...
(gdb) break main
Breakpoint 1 at 0x4d40: file /work/src/bin/ls/main.c, line 48.
(gdb) run
Starting program: /bin/ls 
Warning:
Cannot insert breakpoint 1.
Cannot access memory at address 0x4d40


>How-To-Repeat:
s/a

>Fix:
n/a

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: toolchain-manager->skrll
Responsible-Changed-By: skrll@NetBSD.org
Responsible-Changed-When: Fri, 10 Jul 2026 10:25:54 +0000
Responsible-Changed-Why:
take


State-Changed-From-To: open->analyzed
State-Changed-By: skrll@NetBSD.org
State-Changed-When: Fri, 10 Jul 2026 10:25:54 +0000
State-Changed-Why:
aarch64_nbsd_tdep isn't being initialized. I have a fix.


From: "Nick Hudson" <skrll@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/60362 CVS commit: src/external/gpl3/gdb
Date: Fri, 10 Jul 2026 10:59:57 +0000

 Module Name:	src
 Committed By:	skrll
 Date:		Fri Jul 10 10:59:56 UTC 2026

 Modified Files:
 	src/external/gpl3/gdb/dist/gdb: aarch64-netbsd-tdep.c
 	src/external/gpl3/gdb/lib/libgdb/arch/aarch64: init.c

 Log Message:
 PR/60362 (gdb can not insert breakpoints on aarch64)

 Update aarch64-netbsd-tdep.c to use modern gdb initialisation method and
 re-gen libgdb/arch/aarch64/init.c


 To generate a diff of this commit:
 cvs rdiff -u -r1.4 -r1.5 src/external/gpl3/gdb/dist/gdb/aarch64-netbsd-tdep.c
 cvs rdiff -u -r1.10 -r1.11 \
     src/external/gpl3/gdb/lib/libgdb/arch/aarch64/init.c

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

State-Changed-From-To: analyzed->feedback
State-Changed-By: skrll@NetBSD.org
State-Changed-When: Fri, 10 Jul 2026 17:37:58 +0000
State-Changed-Why:
cvs rdiff -u -r1.4 -r1.5 src/external/gpl3/gdb/dist/gdb/aarch64-netbsd-tdep.c
cvs rdiff -u -r1.10 -r1.11 \
    src/external/gpl3/gdb/lib/libgdb/arch/aarch64/init.c

should fix it


>Unformatted:

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