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From: "dajiang0055 at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug rust/31082] rust-parse infers `0xffffffd00000009a` and other addresses as i128, preventing `as *mut _` coercions in `print`
Date: Fri, 01 Nov 2024 07:36:16 +0000	[thread overview]
Message-ID: <bug-31082-4717-mixSolKDp9@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-31082-4717@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=31082

dajiang0055 at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dajiang0055 at gmail dot com

--- Comment #5 from dajiang0055 at gmail dot com ---
(In reply to Tom Tromey from comment #4)
> Fixed.

Hi, this fix will break mips target. For mips target, the address 0x80ffffac
will 
sign extended to 0xffffffff80ffffac 
see also https://sourceware.org/pipermail/binutils/2002-September/021970.html

Breakpoint 1, main () at gdb/testsuite/gdb.base/advance.c:43
43        c = 5;
(gdb) watch -l b
warning: value truncated
Hardware watchpoint 3: -location b
(gdb) p/x &b
$1 = 0x80ffffac

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  parent reply	other threads:[~2024-11-01  7:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-23 17:26 [Bug rust/31082] New: " tpzker at thepuzzlemaker dot info
2023-11-23 17:37 ` [Bug rust/31082] " tpzker at thepuzzlemaker dot info
2023-11-24 16:37 ` tromey at sourceware dot org
2023-11-24 16:56 ` tromey at sourceware dot org
2023-11-25  2:26 ` tromey at sourceware dot org
2023-12-08 15:39 ` cvs-commit at gcc dot gnu.org
2023-12-08 15:39 ` tromey at sourceware dot org
2024-11-01  7:36 ` dajiang0055 at gmail dot com [this message]
2024-11-01 23:34 ` tromey at sourceware dot org

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