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* [Bug tdep/31666] New: Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*)
@ 2024-04-22  4:11 thiago.bauermann at linaro dot org
  2024-04-22  4:12 ` [Bug tdep/31666] " thiago.bauermann at linaro dot org
  2024-05-04  0:09 ` thiago.bauermann at linaro dot org
  0 siblings, 2 replies; 3+ messages in thread
From: thiago.bauermann at linaro dot org @ 2024-04-22  4:11 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=31666

            Bug ID: 31666
           Summary: Support aarch64 mops feature ops ( CPYF*, CPY*, SET*
                    and SETG*)
           Product: gdb
           Version: HEAD
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tdep
          Assignee: unassigned at sourceware dot org
          Reporter: thiago.bauermann at linaro dot org
  Target Milestone: ---

Starting with Arm v8.8/v9.3, a new architectural feature (FEAT_MOPS) provides
new instructions to perform memory copy and memory set operations in a
standardized way. There are specialized versions of memcpy, memmove and memset
using them in glibc 2.39.

These instructions appear as a sequence of 3: one prologue, one main and one
epilogue instruction. The AArch64 target of GDB needs two things to support
them:

1. Recognize the trio of instructions as one atomic sequence.
2. Recognize the instructions for record/replay.

Patches for both are being finalized and will be posted in the next few days.

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* [Bug tdep/31666] Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*)
  2024-04-22  4:11 [Bug tdep/31666] New: Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*) thiago.bauermann at linaro dot org
@ 2024-04-22  4:12 ` thiago.bauermann at linaro dot org
  2024-05-04  0:09 ` thiago.bauermann at linaro dot org
  1 sibling, 0 replies; 3+ messages in thread
From: thiago.bauermann at linaro dot org @ 2024-04-22  4:12 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=31666

Thiago Jung Bauermann <thiago.bauermann at linaro dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |aarch64

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* [Bug tdep/31666] Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*)
  2024-04-22  4:11 [Bug tdep/31666] New: Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*) thiago.bauermann at linaro dot org
  2024-04-22  4:12 ` [Bug tdep/31666] " thiago.bauermann at linaro dot org
@ 2024-05-04  0:09 ` thiago.bauermann at linaro dot org
  1 sibling, 0 replies; 3+ messages in thread
From: thiago.bauermann at linaro dot org @ 2024-05-04  0:09 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=31666

--- Comment #1 from Thiago Jung Bauermann <thiago.bauermann at linaro dot org> ---
Hello,

Posted the patch series here:

https://inbox.sourceware.org/gdb-patches/20240504000521.314531-1-thiago.bauermann@linaro.org/

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2024-04-22  4:11 [Bug tdep/31666] New: Support aarch64 mops feature ops ( CPYF*, CPY*, SET* and SETG*) thiago.bauermann at linaro dot org
2024-04-22  4:12 ` [Bug tdep/31666] " thiago.bauermann at linaro dot org
2024-05-04  0:09 ` thiago.bauermann at linaro dot org

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