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Thu, 13 Feb 2025 05:16:26 -0800 (PST) Received: from krava ([173.38.220.37]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-aba53376abbsm130283666b.93.2025.02.13.05.16.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Feb 2025 05:16:26 -0800 (PST) From: Jiri Olsa X-Google-Original-From: Jiri Olsa Date: Thu, 13 Feb 2025 14:16:24 +0100 To: Ihor Solodrai Cc: dwarves@vger.kernel.org, bpf@vger.kernel.org, acme@kernel.org, alan.maguire@oracle.com, ast@kernel.org, andrii@kernel.org, eddyz87@gmail.com, mykolal@fb.com, kernel-team@meta.com Subject: Re: [PATCH v2 dwarves 0/4] btf_encoder: emit type tags for bpf_arena pointers Message-ID: References: <20250212201552.1431219-1-ihor.solodrai@linux.dev> Precedence: bulk X-Mailing-List: dwarves@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250212201552.1431219-1-ihor.solodrai@linux.dev> On Wed, Feb 12, 2025 at 12:15:48PM -0800, Ihor Solodrai wrote: > This patch series implements emitting appropriate BTF type tags for > argument and return types of kfuncs marked with KF_ARENA_* flags. > > For additional context see the description of BPF patch > "bpf: define KF_ARENA_* flags for bpf_arena kfuncs" [1]. > > The feature depends on recent changes in libbpf [2]. > > [1] https://lore.kernel.org/bpf/20250206003148.2308659-1-ihor.solodrai@linux.dev/ > [2] https://lore.kernel.org/bpf/20250130201239.1429648-1-ihor.solodrai@linux.dev/ > > v1->v2: > * Rewrite patch #1 refactoring btf_encoder__tag_kfuncs(): now the > post-processing step is removed entirely, and kfuncs are tagged in > btf_encoder__add_func(). > * Nits and renames in patch #2 > * Add patch #4 editing man pages lgtm Reviewed-by: Jiri Olsa thanks, jirka > > v1: https://lore.kernel.org/dwarves/20250207021442.155703-1-ihor.solodrai@linux.dev/ > > Ihor Solodrai (4): > btf_encoder: refactor btf_encoder__tag_kfuncs() > btf_encoder: emit type tags for bpf_arena pointers > pahole: introduce --btf_feature=attributes > man-pages: describe attributes and remove reproducible_build > > btf_encoder.c | 282 +++++++++++++++++++++++---------------------- > dwarves.h | 1 + > man-pages/pahole.1 | 7 +- > pahole.c | 11 ++ > 4 files changed, 161 insertions(+), 140 deletions(-) > > -- > 2.48.1 > >