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From: "dmitry.neverov at jetbrains dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/30446] New: Wrong raw v0 register value on aarch64
Date: Mon, 15 May 2023 07:28:00 +0000 [thread overview]
Message-ID: <bug-30446-4717@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=30446
Bug ID: 30446
Summary: Wrong raw v0 register value on aarch64
Product: gdb
Version: 13.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gdb
Assignee: unassigned at sourceware dot org
Reporter: dmitry.neverov at jetbrains dot com
Target Milestone: ---
When evaluating $v0, gdb/mi returns:
-data-list-register-values --thread 1 --frame 0 --skip-unavailable r 34
^done,register-values=[{number="34",value="{d = {f = {0x0000000000000000,
0x0000000000000000}, u = {0x2f2f2f2f2f2f2f2f, 0x2f2f2f2f2f2f2f2f}, s =
{0x2f2f2f2f2f2f2f2f, 0x2f2f2f2f2f2f2f2f}}, s = {f = {0x00000000, 0x00000000,
0x00000000, 0x00000000}, u = {0x2f2f2f2f, 0x2f2f2f2f, 0x2f2f2f2f, 0x2f2f2f2f},
s = {0x2f2f2f2f, 0x2f2f2f2f, 0x2f2f2f2f, 0x2f2f2f2f}}, h = {f = {0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, u = {0x2f2f, 0x2f2f,
0x2f2f, 0x2f2f, 0x2f2f, 0x2f2f, 0x2f2f, 0x2f2f}, s = {0x2f2f, 0x2f2f, 0x2f2f,
0x2f2f, 0x2f2f, 0x2f2f, 0x2f2f, 0x2f2f}}, b = {u = {0x2f, 0x2f, 0x2f, 0x2f,
0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f}, s =
{0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
0x2f, 0x2f, 0x2f}}, q = {u = {0x2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f}, s =
{0x2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f}}}"}]
The first member in the union is itself a union with 3 members:
d = {f = {0x0000000000000000, 0x0000000000000000}, u = {0x2f2f2f2f2f2f2f2f,
0x2f2f2f2f2f2f2f2f}, s = {0x2f2f2f2f2f2f2f2f, 0x2f2f2f2f2f2f2f2f}}
The first member (f) has a different raw value comparing to 'u' and 's'. This
seems to be a bug, since the command asked for a raw value which should be the
same for all union members.
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next reply other threads:[~2023-05-15 7:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-15 7:28 dmitry.neverov at jetbrains dot com [this message]
2023-05-31 9:46 ` [Bug gdb/30446] " luis.machado at arm dot com
2023-06-01 8:18 ` dmitry.neverov at jetbrains dot com
2023-06-02 5:35 ` luis.machado at arm dot com
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