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[2001:b400:e28a:3ac8:97bc:6284:f824:fe38]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8273a081a14sm7194179b3a.64.2026.02.28.04.13.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Feb 2026 04:13:19 -0800 (PST) From: Nick Huang To: macro@orcam.me.uk Cc: linux@armlinux.org.uk, davidgow@google.com, dongsheng.yang@linux.dev, dory85109@gmail.com, ebiggers@kernel.org, idryomov@gmail.com, jlayton@kernel.org, john.g.garry@oracle.com, namhyung@kernel.org, robh@kernel.org, sef1548@gmail.com, kusogame68@gmail.com, wdhh6@aliyun.com, wqu@suse.com, yot4106@gmail.com, likerockman102@hotmail.com, squid@squidspirit.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] arm: Replace ASSEMBLY with ASSEMBLER in uapi headers Date: Sat, 28 Feb 2026 12:13:11 +0000 Message-ID: <20260228121311.3804-1-sef1548@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" While the transition from __ASSEMBLY__ to __ASSEMBLER__ is not a regression, the use of the modern __ASSEMBLER__ macro requires a sufficiently recent compiler (GCC 3.0+). In some environments, userland might still be using ancient tools like GCC 2.95.x, which does not natively define __ASSEMBLER__. To provide a complete fix and prevent silent build issues or header ambiguity, add an #error guard to catch unsupported toolchains. Changes in v2: - Added explicit #error check for GCC versions earlier than 3.0. - Updated commit message to clarify the rationale for legacy toolchain supp= ort. - Link to v1: https://lore.kernel.org/all/20260218133952.5356-1-sef1548@gma= il.com/ Signed-off-by: Nick Huang --- arch/arm/include/uapi/asm/ptrace.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm= /ptrace.h index 8896c23cc..51cfefeae 100644 --- a/arch/arm/include/uapi/asm/ptrace.h +++ b/arch/arm/include/uapi/asm/ptrace.h @@ -119,7 +119,12 @@ #define PT_DATA_ADDR 0x10004 #define PT_TEXT_END_ADDR 0x10008 =20 -#ifndef __ASSEMBLY__ +#if defined(__GNUC__) && (__GNUC__ < 3) +# error "GCC 3.0+ is required for proper __ASSEMBLER__ support. \ +Your compiler is too old to safely handle modern kernel assembly headers." +#endif + +#ifndef __ASSEMBLER__=20 =20 /* * This struct defines the way the registers are stored on the @@ -158,6 +163,6 @@ struct pt_regs { #define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ ) =20 =20 -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ =20 #endif /* _UAPI__ASM_ARM_PTRACE_H */ --=20 2.43.0