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Mon, 14 Oct 2024 05:57:11 -0700 (PDT) Date: Mon, 14 Oct 2024 14:57:05 +0200 In-Reply-To: <20241014125703.2287936-4-ardb+git@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241014125703.2287936-4-ardb+git@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=2118; i=ardb@kernel.org; h=from:subject; bh=MtWmIu/XLANHMVww4WyPFLDlQ8/l/C/DRmC5uEQQzio=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIZ1XVNHwoeS37nPZH8+9jH/hl7bp0+2HPxo3Wze3X9irp 3O/lOVgRykLgxgHg6yYIovA7L/vdp6eKFXrPEsWZg4rE8gQBi5OAZhIpzgjw6WCzw7LSvZtXxIe Jldyg2+rqsRr3031i5gOXjDVZ539rZ+R4Uxopky14DObzLN7jl2QsN2SvWKJyyaVFNYcxV2fhRn P8gEA X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog Message-ID: <20241014125703.2287936-5-ardb+git@google.com> Subject: [PATCH 1/2] codetag: Use dot prefix for section name From: Ard Biesheuvel To: linux-kernel@vger.kernel.org Cc: Ard Biesheuvel , Linus Torvalds , Masahiro Yamada , Nathan Chancellor , Suren Baghdasaryan , Kent Overstreet , Arnd Bergmann , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kbuild@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ard Biesheuvel Sections typically use leading dots in their names, and deviating from this breaks some assumptions in the existing code, e.g., in strip_relocs on x86, which filters out .rela.* and .rela__* sections. [65] alloc_tags PROGBITS 0000000000000000 03a57958 0000000000026340 0000000000000000 WA 0 0 8 [66] .relaalloc_tags RELA 0000000000000000 08dbb868 0000000000044c40 0000000000000018 I 280 65 8 So use a leading dot for the alloc_tags sections. Signed-off-by: Ard Biesheuvel --- include/asm-generic/codetag.lds.h | 2 +- include/linux/alloc_tag.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/asm-generic/codetag.lds.h b/include/asm-generic/codeta= g.lds.h index 64f536b80380..dcd18351ba2f 100644 --- a/include/asm-generic/codetag.lds.h +++ b/include/asm-generic/codetag.lds.h @@ -5,7 +5,7 @@ #define SECTION_WITH_BOUNDARIES(_name) \ . =3D ALIGN(8); \ __start_##_name =3D .; \ - KEEP(*(_name)) \ + KEEP(*(. ## _name)) \ __stop_##_name =3D .; =20 #define CODETAG_SECTIONS() \ diff --git a/include/linux/alloc_tag.h b/include/linux/alloc_tag.h index 1f0a9ff23a2c..d45a8a582970 100644 --- a/include/linux/alloc_tag.h +++ b/include/linux/alloc_tag.h @@ -76,7 +76,7 @@ DECLARE_PER_CPU(struct alloc_tag_counters, _shared_alloc_= tag); =20 #define DEFINE_ALLOC_TAG(_alloc_tag) \ static struct alloc_tag _alloc_tag __used __aligned(8) \ - __section("alloc_tags") =3D { \ + __section(".alloc_tags") =3D { \ .ct =3D CODE_TAG_INIT, \ .counters =3D &_shared_alloc_tag }; =20 @@ -85,7 +85,7 @@ DECLARE_PER_CPU(struct alloc_tag_counters, _shared_alloc_= tag); #define DEFINE_ALLOC_TAG(_alloc_tag) \ static DEFINE_PER_CPU(struct alloc_tag_counters, _alloc_tag_cntr); \ static struct alloc_tag _alloc_tag __used __aligned(8) \ - __section("alloc_tags") =3D { \ + __section(".alloc_tags") =3D { \ .ct =3D CODE_TAG_INIT, \ .counters =3D &_alloc_tag_cntr }; =20 --=20 2.47.0.rc1.288.g06298d1525-goog