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From: Tom Tromey <tom@tromey.com>
To: "Schimpe, Christina" <christina.schimpe@intel.com>
Cc: Tom Tromey <tom@tromey.com>,
	 "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>,
	 "thiago.bauermann@linaro.org" <thiago.bauermann@linaro.org>
Subject: Re: [PATCH v2 1/9] gdb: Generalize handling of the shadow stack pointer.
Date: Tue, 14 Apr 2026 11:34:05 -0600	[thread overview]
Message-ID: <87se8xv436.fsf@tromey.com> (raw)
In-Reply-To: <SN7PR11MB76385935DC4D76E3A3F97B2EF9582@SN7PR11MB7638.namprd11.prod.outlook.com> (Christina Schimpe's message of "Thu, 9 Apr 2026 09:49:43 +0000")

>>>>> Schimpe, Christina <christina.schimpe@intel.com> writes:

> Sorry for getting back delayed response. I am seeing the following
> when running check-gdbarch.py:

> ~~~
> $ ./check-gdbarch.py
> never set: shadow_stack_element_size_aligned
> ~~~

> Given that I assign a pre-default I don't have to configure it for amd64 specifically.
> But starting with this patch, this message will always appear when running the script. 

> Should we change the script for this case?

It depends.

This means that no architecture sets this gdbarch parameter.
So:

1. Maybe it's not needed at all and should be removed, or
2. Maybe it's used in some later patch and the warning should be
   ignored, or
3. Maybe it might be used in the future and we don't want to
   hard-code the value and so it should be marked 'unused'
   in gdbarch_components.py

Tom

  reply	other threads:[~2026-04-14 17:34 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-23  8:05 [PATCH v2 0/9] Add new command to print the shadow stack backtrace Christina Schimpe
2026-01-23  8:05 ` [PATCH v2 1/9] gdb: Generalize handling of the shadow stack pointer Christina Schimpe
2026-02-19 17:55   ` Tom Tromey
2026-02-27 18:09     ` Schimpe, Christina
2026-02-27 18:26       ` Tom Tromey
2026-03-02 11:53         ` Schimpe, Christina
2026-04-09  9:49           ` Schimpe, Christina
2026-04-14 17:34             ` Tom Tromey [this message]
2026-04-15  7:35               ` Schimpe, Christina
2026-04-15 15:54                 ` Tom Tromey
2026-02-27 22:54       ` Thiago Jung Bauermann
2026-03-06  3:15   ` Thiago Jung Bauermann
2026-03-06  3:57     ` Thiago Jung Bauermann
2026-04-09 11:57       ` Schimpe, Christina
2026-04-10  5:03         ` Thiago Jung Bauermann
2026-04-10  7:53           ` Schimpe, Christina
2026-04-09 12:06   ` Schimpe, Christina
2026-04-10  5:05     ` Thiago Jung Bauermann
2026-01-23  8:05 ` [PATCH v2 2/9] gdb: Refactor 'stack.c:print_frame' Christina Schimpe
2026-01-23  8:05 ` [PATCH v2 3/9] gdb: Introduce 'stack.c:print_pc' function without frame argument Christina Schimpe
2026-01-23  8:05 ` [PATCH v2 4/9] gdb: Refactor 'find_symbol_funname' and 'info_frame_command_core' in stack.c Christina Schimpe
2026-02-19 17:32   ` Tom Tromey
2026-04-09 12:40     ` Schimpe, Christina
2026-01-23  8:05 ` [PATCH v2 5/9] gdb: Refactor 'stack.c:print_frame_info' Christina Schimpe
2026-01-23  8:05 ` [PATCH v2 6/9] gdb: Add command option 'bt -shadow' to print the shadow stack backtrace Christina Schimpe
2026-01-23  8:52   ` Eli Zaretskii
2026-02-13 16:42     ` Schimpe, Christina
2026-04-14  8:43       ` Schimpe, Christina
2026-04-14 11:53         ` Eli Zaretskii
2026-04-14 13:28           ` Schimpe, Christina
2026-04-14 14:12             ` Eli Zaretskii
2026-04-14 15:05               ` Schimpe, Christina
2026-02-19 18:19   ` Tom Tromey
2026-04-09 16:48     ` Schimpe, Christina
2026-03-06  4:31   ` Thiago Jung Bauermann
2026-03-06  9:39     ` Schimpe, Christina
2026-04-09 15:12     ` Schimpe, Christina
2026-04-10  6:21       ` Thiago Jung Bauermann
2026-04-10 12:12         ` Schimpe, Christina
2026-01-23  8:05 ` [PATCH v2 7/9] gdb: Provide gdbarch hook to distinguish shadow stack backtrace elements Christina Schimpe
2026-01-23  8:47   ` Eli Zaretskii
2026-02-19 17:41   ` Tom Tromey
2026-01-23  8:05 ` [PATCH v2 8/9] gdb: Implement the hook 'is_no_return_shadow_stack_address' for amd64 linux Christina Schimpe
2026-02-19 17:43   ` Tom Tromey
2026-01-23  8:05 ` [PATCH v2 9/9] gdb, mi: Add -shadow-stack-list-frames command Christina Schimpe
2026-01-23  8:46   ` Eli Zaretskii
2026-02-13 19:17     ` Schimpe, Christina
2026-02-19 18:26   ` Tom Tromey
2026-03-02 12:39 ` [PATCH v2 0/9] Add new command to print the shadow stack backtrace Schimpe, Christina

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