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Rao" , Michael Ellerman , linux-trace-kernel@vger.kernel.org, Mark Rutland , Steven Rostedt , Masami Hiramatsu , llvm@lists.linux.dev, Maryam Moghadas Subject: [PATCH 1/3] powerpc64: make clang cross-build friendly Date: Sun, 9 Nov 2025 02:34:03 +0530 Message-ID: <20251108210405.2375472-2-hbathini@linux.ibm.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251108210405.2375472-1-hbathini@linux.ibm.com> References: <20251108210405.2375472-1-hbathini@linux.ibm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=MtZfKmae c=1 sm=1 tr=0 ts=690fb051 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=G_DWyleSnc-e0WChyngA:9 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-GUID: R8RaDF7NQk7DuRfqh39j0lhFdN4Ch9-w X-Proofpoint-ORIG-GUID: R8RaDF7NQk7DuRfqh39j0lhFdN4Ch9-w X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA4MDA3OSBTYWx0ZWRfX1nqKHAlZsKHm 4kn7bJozidBb7w+Ca0WoiEeqkp7S45kAUf8HgHyDMcIQISHQKwLiRltQcQXSGT2RLFBHihWcnxZ aEB8kq4mKg2JunRva1g1U4d2KrM6Ll2+UcRJLE9QEngtpBsBh3O/vYkLxtBxE1zSW8jKxu6CDNi i0eWXPl0dOVIJaXMa6IBzKx/y1JZe9/4AtW2XWqzc0mEJuor4exjDKZ5GNLLj8Yq4/m/TaOSUFb GbSOBhGH9vdtCv3RfiAyyIRa/Bt33OeODrBPFyXej0ubfFTLPQgp4FVvopApuWiZc1hI8erGNY/ yBDGFDFncb53a8+jRKpAQN9cZTt+4mgGb/P3n1kLAOMgQG/PAhFTEYL5Ahp90/lLsEEiYC4XMMa zsnrm5arVoXJQc0kVe/FvM1XS6BCKQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-08_06,2025-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 priorityscore=1501 bulkscore=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1011 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2511080079 ARCH_USING_PATCHABLE_FUNCTION_ENTRY depends on toolchain support for -fpatchable-function-entry option. The current script that checks for this support only handles GCC. Rename the script and extend it to detect support for -fpatchable-function-entry with Clang as well, allowing clean cross-compilation with Clang toolchains. Signed-off-by: Hari Bathini --- arch/powerpc/Kconfig | 5 +++-- ...-function-entry.sh => check-fpatchable-function-entry.sh} | 0 2 files changed, 3 insertions(+), 2 deletions(-) rename arch/powerpc/tools/{gcc-check-fpatchable-function-entry.sh => check-fpatchable-function-entry.sh} (100%) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 325c1171894d..dfb62e211c92 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -568,8 +568,9 @@ config ARCH_USING_PATCHABLE_FUNCTION_ENTRY depends on FUNCTION_TRACER && (PPC32 || PPC64_ELF_ABI_V2) depends on $(cc-option,-fpatchable-function-entry=2) def_bool y if PPC32 - def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh $(CC) -mlittle-endian) if PPC64 && CPU_LITTLE_ENDIAN - def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh $(CC) -mbig-endian) if PPC64 && CPU_BIG_ENDIAN + def_bool $(success,$(srctree)/arch/powerpc/tools/check-fpatchable-function-entry.sh $(CC) -mlittle-endian) if PPC64 && CPU_LITTLE_ENDIAN && CC_IS_GCC + def_bool $(success,$(srctree)/arch/powerpc/tools/check-fpatchable-function-entry.sh $(CC) -target ppc64le -mlittle-endian) if PPC64 && CPU_LITTLE_ENDIAN && CC_IS_CLANG + def_bool $(success,$(srctree)/arch/powerpc/tools/check-fpatchable-function-entry.sh $(CC) -mbig-endian) if PPC64 && CPU_BIG_ENDIAN config PPC_FTRACE_OUT_OF_LINE def_bool PPC64 && ARCH_USING_PATCHABLE_FUNCTION_ENTRY diff --git a/arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh b/arch/powerpc/tools/check-fpatchable-function-entry.sh similarity index 100% rename from arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh rename to arch/powerpc/tools/check-fpatchable-function-entry.sh -- 2.51.1