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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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