From: sashiko-bot@kernel.org
To: "Tengda Wu" <wutengda@huaweicloud.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v8 11/15] perf annotate-arm64: Support 'mov' instruction tracking
Date: Tue, 20 Oct 2026 15:01:53 +0000 [thread overview]
Message-ID: <sashiko-outbox-179209@kernel.org> (raw)
In-Reply-To: <8e38e27fa8806e3355e579bddfb7739c9619cb07.1792411435.git.wutengda@huaweicloud.com>
> Extend update_insn_state_arm64() to support register-to-register and
> immediate-to-register 'mov' instructions.
>
> For register-to-register 'mov' (e.g., mov dreg, sreg), propagate data type
> information from the source register to the destination register.
>
> For immediate-to-register 'mov' (e.g., mov dreg, #imm), store the immediate
> value in the destination register's imm_value field and set its kind to
> TSR_KIND_CONST, allowing subsequent instructions to resolve it as a
> constant.
>
> A real-world example is shown below:
>
> ffff8000803eebf8 <get_vma_policy>:
> ffff8000803eec20: mov x21, x0 // x0 (struct vm_area_struct*) -> x21
> [ ... ]
> final result: type='struct vm_area_struct' size=0xb0
>
> Reviewed-by: Ian Rogers <irogers@google.com>
> Reviewed-by: Namhyung Kim <namhyung@kernel.org>
> Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1792411435.git.wutengda@huaweicloud.com?part=11
next prev parent reply other threads:[~2026-10-20 15:01 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 13:44 [PATCH v8 00/15] perf annotate arm64: Support instruction tracking for data type profiling Tengda Wu
2026-10-20 13:44 ` [PATCH v8 01/15] perf annotate-data: Extract invalidate_reg_state() as a common helper Tengda Wu
2026-10-20 13:57 ` sashiko-bot
2026-10-20 13:44 ` [PATCH v8 02/15] perf annotate-arm64: Enable instruction tracking support Tengda Wu
2026-10-20 14:05 ` sashiko-bot
2026-10-20 13:44 ` [PATCH v8 03/15] perf annotate-data: Add arch_get_reg_offset helper Tengda Wu
2026-10-20 14:13 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 04/15] perf annotate-arm64: Track return type after call instructions Tengda Wu
2026-10-20 14:15 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 05/15] perf annotate-arm64: Support load instruction tracking Tengda Wu
2026-10-20 14:36 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 06/15] perf annotate-arm64: Support store " Tengda Wu
2026-10-20 14:39 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 07/15] perf annotate-data: Expand type_state_reg imm_value to u64 Tengda Wu
2026-10-20 14:43 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 08/15] perf annotate-data: Track imm_value for stack variables Tengda Wu
2026-10-20 14:46 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 09/15] perf annotate-x86: Delete stale stack state on store of untracked register Tengda Wu
2026-10-20 14:50 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 10/15] perf annotate-arm64: Support stack variable tracking Tengda Wu
2026-10-20 14:59 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 11/15] perf annotate-arm64: Support 'mov' instruction tracking Tengda Wu
2026-10-20 15:01 ` sashiko-bot [this message]
2026-10-20 13:45 ` [PATCH v8 12/15] perf annotate-arm64: Support 'add' " Tengda Wu
2026-10-20 15:05 ` sashiko-bot
2026-10-20 13:45 ` [PATCH v8 13/15] perf annotate-arm64: Support 'adrp' instruction to track global variables Tengda Wu
2026-10-20 13:45 ` [PATCH v8 14/15] perf annotate-arm64: Support per-cpu variable access tracking Tengda Wu
2026-10-20 13:45 ` [PATCH v8 15/15] perf annotate-arm64: Support 'mrs' instruction to track 'current' pointer Tengda Wu
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