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From: Tom Tromey <tom@tromey.com>
To: Hannes Domani <ssbssa@yahoo.de>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH v3 2/8] Windows gdb: Use allocated buffer for CONTEXT
Date: Tue, 01 Sep 2026 11:22:54 -0600	[thread overview]
Message-ID: <87a4q07uoh.fsf@tromey.com> (raw)
In-Reply-To: <20260829145823.1034821-2-ssbssa@yahoo.de> (Hannes Domani's message of "Sat, 29 Aug 2026 16:48:59 +0200")

>>>>> "Hannes" == Hannes Domani <ssbssa@yahoo.de> writes:

Hannes> This is done in preparation for the XState functions, because the
Hannes> extended registers are stored directly after the CONTEXT, and its actual
Hannes> size depends on the available XState features.

Looks good, thanks.  I have one note but it's not really super
important.

Approved-By: Tom Tromey <tom@tromey.com>

Hannes> +windows_thread_info::windows_thread_info (windows_process_info *proc_,
Hannes> +					  DWORD tid_, HANDLE h_, CORE_ADDR tlb)
Hannes> +  : proc (proc_),
Hannes> +    tid (tid_),
Hannes> +    h (h_),
Hannes> +    thread_local_base (tlb)
Hannes> +{
Hannes> +#ifdef __x86_64__
Hannes> +  if (proc->wow64_process)
Hannes> +    {
Hannes> +      context_buffer.reset (xmalloc (sizeof (WOW64_CONTEXT)));
Hannes> +      wow64_context = (WOW64_CONTEXT *) context_buffer.get ();
Hannes> +    }
Hannes> +  else
Hannes> +#endif
Hannes> +    {
Hannes> +      context_buffer.reset (xmalloc (sizeof (CONTEXT)));
Hannes> +      context = (CONTEXT *) context_buffer.get ();
Hannes> +    }
Hannes> +  *proc->context_flags_ptr (this) = 0;

I guess this is because the memory isn't initialized?
You could use XCNEW instead of xmalloc to fix this.

Tom

  reply	other threads:[~2026-09-01 17:23 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260829145823.1034821-1-ssbssa.ref@yahoo.de>
2026-08-29 14:48 ` [PATCH v3 1/8] gdb/testsuite: Add Windows replacement for aligned_alloc Hannes Domani
2026-08-29 14:48   ` [PATCH v3 2/8] Windows gdb: Use allocated buffer for CONTEXT Hannes Domani
2026-09-01 17:22     ` Tom Tromey [this message]
2026-09-01 17:30       ` Hannes Domani
2026-08-29 14:49   ` [PATCH v3 3/8] Windows gdb: Remove mappings member from windows_per_inferior Hannes Domani
2026-08-29 14:49   ` [PATCH v3 4/8] Windows gdb: Refactor getting pointer to register inside context Hannes Domani
2026-08-29 14:49   ` [PATCH v3 5/8] Windows gdb: Prepare XState functions Hannes Domani
2026-08-29 14:49   ` [PATCH v3 6/8] Windows gdb: Get available XState features Hannes Domani
2026-09-01 17:38     ` Tom Tromey
2026-09-01 17:44       ` Hannes Domani
2026-09-01 17:51         ` Tom Tromey
2026-08-29 14:49   ` [PATCH v3 7/8] Windows gdb: Implement AVX register support Hannes Domani
2026-09-01 17:48     ` Tom Tromey
2026-09-01 18:00       ` Hannes Domani
2026-09-08 15:27         ` Joos, Christina
2026-09-04 16:33       ` Joos, Christina
2026-09-08 13:04     ` Rohr, Stephan
2026-09-10 11:33       ` Joos, Christina
2026-08-29 14:49   ` [PATCH v3 8/8] Windows gdb: Implement AVX-512 " Hannes Domani
2026-08-29 15:40     ` Eli Zaretskii
2026-09-01 17:49     ` Tom Tromey
2026-09-08 13:05     ` Rohr, Stephan
2026-09-10 12:08       ` Joos, Christina
2026-09-10 14:39         ` Hannes Domani
2026-09-13 21:18           ` Joos, Christina
2026-09-10 16:54         ` Hannes Domani
2026-09-13 21:37           ` Joos, Christina

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