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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/31453] [gdb/tdep, arm] FAIL: gdb.arch/pr25124.exp: disassemble thumb instruction (1st try)
Date: Wed, 20 Mar 2024 08:56:47 +0000 [thread overview]
Message-ID: <bug-31453-4717-hs7HuvkMMw@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-31453-4717@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=31453
--- Comment #3 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8a61ee551ce3059f602fee1e576af08c03f991bc
commit 8a61ee551ce3059f602fee1e576af08c03f991bc
Author: Tom de Vries <tdevries@suse.de>
Date: Wed Mar 20 09:57:49 2024 +0100
[gdb/symtab] Workaround PR gas/31115
On arm-linux, with gas 2.40, I run into:
...
(gdb) x /i main+8^M
0x4e1 <main+7>: vrhadd.u16 d14, d14, d31^M
(gdb) FAIL: gdb.arch/pr25124.exp: disassemble thumb instruction (1st try)
...
This is a regression due to PR gas/31115, which makes gas produce a low_pc
with the thumb bit set (0x4d8 & 0x1):
...
<1><24>: Abbrev Number: 2 (DW_TAG_subprogram)
<25> DW_AT_name : main
<29> DW_AT_external : 1
<29> DW_AT_type : <0x2f>
<2a> DW_AT_low_pc : 0x4d9
<2e> DW_AT_high_pc : 12
...
The regression was introduced in 2.39, and is also present in 2.40 and
2.41,
and hasn't been fixed yet.
Work around this in read_func_scope, by using gdbarch_addr_bits_remove on
low_pc and high_pc.
Tested on arm-linux and x86_64-linux.
PR tdep/31453
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31453
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next prev parent reply other threads:[~2024-03-20 8:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-06 10:52 [Bug tdep/31453] New: " vries at gcc dot gnu.org
2024-03-06 13:06 ` [Bug tdep/31453] " vries at gcc dot gnu.org
2024-03-06 15:53 ` vries at gcc dot gnu.org
2024-03-06 15:55 ` sam at gentoo dot org
2024-03-20 8:56 ` cvs-commit at gcc dot gnu.org [this message]
2024-03-20 8:57 ` vries at gcc dot gnu.org
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