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linux/arch/arm64/kernel
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Nathan Chancellor 4e5a36ab66 arm64: Handle .ARM.attributes section in linker scripts 
commit ca0f4fe7cf upstream.

A recent LLVM commit [1] started generating an .ARM.attributes section
similar to the one that exists for 32-bit, which results in orphan
section warnings (or errors if CONFIG_WERROR is enabled) from the linker
because it is not handled in the arm64 linker scripts.

  ld.lld: error: arch/arm64/kernel/vdso/vgettimeofday.o:(.ARM.attributes) is being placed in '.ARM.attributes'
  ld.lld: error: arch/arm64/kernel/vdso/vgetrandom.o:(.ARM.attributes) is being placed in '.ARM.attributes'

  ld.lld: error: vmlinux.a(lib/vsprintf.o):(.ARM.attributes) is being placed in '.ARM.attributes'
  ld.lld: error: vmlinux.a(lib/win_minmax.o):(.ARM.attributes) is being placed in '.ARM.attributes'
  ld.lld: error: vmlinux.a(lib/xarray.o):(.ARM.attributes) is being placed in '.ARM.attributes'

Discard the new sections in the necessary linker scripts to resolve the
warnings, as the kernel and vDSO do not need to retain it, similar to
the .note.gnu.property section.

Cc: stable@vger.kernel.org
Fixes: b3e5d80d0c ("arm64/build: Warn on orphan section placement")
Link: ee99c4d484 [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250206-arm64-handle-arm-attributes-in-linker-script-v3-1-d53d169913eb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-02-21 13:50:05 +01:00
..
pi arm64: adjust KASLR relocation after ARCH_RANDOM removal 2022-08-17 14:52:50 +01:00
probes arm64: probes: Fix uprobes for big-endian kernels 2024-11-01 01:56:01 +01:00
vdso arm64: Handle .ARM.attributes section in linker scripts 2025-02-21 13:50:05 +01:00
vdso32 kbuild: Drop -Wdeclaration-after-statement 2024-02-23 09:12:52 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acpi.c arm64: mm: Convert to GENERIC_IOREMAP 2022-06-27 12:22:31 +01:00
acpi_numa.c arm64: acpi: Move get_cpu_for_acpi_id() to a header 2024-09-12 11:10:28 +02:00
acpi_parking_protocol.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
alternative.c arm64 updates for 6.1: 2022-10-06 11:51:49 -07:00
armv8_deprecated.c arm64: fix oops in concurrently setting insn_emulation sysctls 2022-07-04 12:18:47 +01:00
asm-offsets.c KVM: arm64: Drop unused workaround_flags vcpu field 2021-12-08 14:54:07 +00:00
cacheinfo.c arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array 2025-02-21 13:49:57 +01:00
compat_alignment.c arm64: compat: Work around uninitialized variable warning 2023-04-13 16:55:24 +02:00
cpu-reset.S arm64: Add types to indirect called assembly functions 2022-09-26 10:13:13 -07:00
cpu_errata.c arm64: errata: Expand speculative SSBS workaround once more 2024-10-17 15:22:05 +02:00
cpu_ops.c arm64: Introduce get_cpu_ops() helper function 2020-03-24 17:24:19 +00:00
cpufeature.c arm64: errata: Add workaround for Arm errata 3194386 and 3312417 2024-08-14 13:52:51 +02:00
cpuidle.c arm64: cpuidle: remove generic cpuidle support 2022-06-23 14:19:33 +01:00
cpuinfo.c arm64/sysreg: Add hwcap for SVE EBF16 2022-09-06 18:53:52 +01:00
crash_core.c arm64: crash_core: Export MODULES, VMALLOC, and VMEMMAP ranges 2022-03-07 21:25:47 +00:00
crash_dump.c vmcore: convert copy_oldmem_page() to take an iov_iter 2022-04-29 14:37:59 -07:00
debug-monitors.c arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step 2023-05-11 23:03:16 +09:00
efi-entry.S arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
efi-header.S arm64: efi: Set NX compat flag in PE/COFF header 2023-04-06 12:10:37 +02:00
efi-rt-wrapper.S arm64: efi: Avoid workqueue to check whether EFI runtime is live 2023-02-01 08:34:34 +01:00
efi.c arm64: efi: Make efi_rt_lock a raw_spinlock 2023-03-11 13:55:43 +01:00
elfcore.c arm64: mte: Fix/clarify the PG_mte_tagged semantics 2023-03-11 13:55:44 +01:00
entry-common.c arm64: entry: avoid kprobe recursion 2022-11-01 17:43:31 +00:00
entry-fpsimd.S arm64/sme: Implement ZA context switching 2022-04-22 18:51:02 +01:00
entry-ftrace.S arm64: ftrace: Define ftrace_stub_graph only with FUNCTION_GRAPH_TRACER 2022-11-14 12:28:52 +00:00
entry.S arm64: Rename ARM64_WORKAROUND_2966298 2024-01-31 16:17:01 -08:00
fpsimd.c arm64/sve: Discard stale CPU state when handling SVE traps 2024-12-14 19:54:53 +01:00
ftrace.c arm64 updates for 6.1: 2022-10-06 11:51:49 -07:00
head.S arm64: Always load shadow stack pointer directly from the task struct 2023-05-11 23:02:59 +09:00
hibernate-asm.S arm64: kexec: install a copy of the linear-map 2021-10-01 13:31:00 +01:00
hibernate.c arm64: mte: Fix/clarify the PG_mte_tagged semantics 2023-03-11 13:55:44 +01:00
hw_breakpoint.c hw_breakpoint: fix single-stepping when using bpf_overflow_handler 2023-09-23 11:11:00 +02:00
hyp-stub.S arm64/sysreg: Standardise naming for ID_AA64MMFR1_EL1 fields 2022-09-09 10:59:03 +01:00
idle.c Merge branch 'for-next/entry' into for-next/core 2021-06-24 14:01:55 +01:00
idreg-override.c arm64/sysreg: Standardise naming for ID_AA64MMFR1_EL1 fields 2022-09-09 10:59:03 +01:00
image-vars.h EFI updates for v6.1 2022-10-09 08:56:54 -07:00
image.h arm64: get rid of TEXT_OFFSET 2020-09-07 15:00:52 +01:00
io.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
irq.c arm64: irq: set the correct node for shadow call stack 2024-02-05 20:13:02 +00:00
jump_label.c arm64: jump_label: Ensure patched jump_labels are visible to all CPUs 2024-08-11 12:35:59 +02:00
kaslr.c random: handle archrandom with multiple longs 2022-07-25 13:26:14 +02:00
kexec_image.c arm64: kexec_file: use more system keyrings to verify kernel image signature 2022-07-15 12:21:16 -04:00
kgdb.c arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step 2023-05-11 23:03:16 +09:00
kuser32.S arm64: compat: Move kuser32.S to .rodata section 2022-06-23 16:01:42 +01:00
machine_kexec.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
machine_kexec_file.c arm64/kexec: Fix missing extra range for crashkres_low. 2022-09-01 11:50:00 +01:00
Makefile Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
module-plts.c arm64: module: Use module_init_layout_section() to spot init sections 2023-09-02 09:16:19 +02:00
module.c arm64: module: move find_section to header 2022-09-09 12:27:25 +01:00
mte.c arm64: mte: Do not set PG_mte_tagged if tags were not initialized 2023-05-24 17:32:52 +01:00
paravirt.c arm64: paravirt: Use RCU read locks to guard stolen_time 2022-05-17 14:23:37 +01:00
patching.c arm64: patch_text: Fixup last cpu should be master 2022-04-08 11:43:46 +01:00
pci.c arm64: PCI: Support root bridge preparation for Hyper-V 2021-08-23 10:59:26 +01:00
perf_callchain.c Peter Zijlstra says: 2022-01-12 16:26:58 -08:00
perf_event.c drivers/perf: pmuv3: don't expose SW_INCR event in sysfs 2024-02-05 20:12:46 +00:00
perf_regs.c perf: arm64: Add SVE vector granule register to user regs 2022-09-22 15:06:02 +01:00
pointer_auth.c arm64: move preemption disablement to prctl handlers 2021-07-28 18:33:49 +01:00
process.c arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled 2024-12-14 19:54:03 +01:00
proton-pack.c arm64: errata: Unify speculative SSBS errata logic 2024-08-14 13:52:52 +02:00
psci.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
ptrace.c arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL 2024-12-14 19:54:33 +01:00
reloc_test_core.c ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs 2022-09-29 18:04:25 +01:00
reloc_test_syms.S arm64: kernel: Convert to modern annotations for assembly functions 2020-05-04 12:46:03 +01:00
relocate_kernel.S arm64: kexec: load from kimage prior to clobbering 2022-05-17 14:25:35 +01:00
return_address.c arm64: Make return_address() use arch_stack_walk() 2021-12-10 14:06:04 +00:00
sdei.c arm64: sdei: abort running SDEI handlers during crash 2023-09-13 09:43:03 +02:00
setup.c arm64: Fix KASAN random tag seed initialization 2024-08-29 17:30:33 +02:00
signal.c arm64/ptrace: Ensure that SME is set up for target when writing SSVE state 2023-08-23 17:52:41 +02:00
signal32.c signal: Deliver SIGTRAP on perf event asynchronously if blocked 2022-04-22 12:14:05 +02:00
sigreturn32.S arm64: compat: Move sigreturn32.S to .rodata section 2022-07-01 12:05:45 +01:00
sleep.S arm64: mm: fix resume for 52-bit enabled builds 2022-09-10 14:46:28 +01:00
smccc-call.S arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint 2024-12-14 19:54:53 +01:00
smp.c arm64: Fix KASAN random tag seed initialization 2024-08-29 17:30:33 +02:00
smp_spin_table.c treewide: Drop function_nocfi 2022-09-26 10:13:14 -07:00
stacktrace.c arm64: efi: Account for the EFI runtime stack in stack unwinder 2023-02-01 08:34:35 +01:00
suspend.c arm64/sme: Restore SME registers on exit from suspend 2024-03-01 13:26:37 +01:00
sys.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
sys32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452 2019-06-19 17:09:08 +02:00
sys_compat.c arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall 2022-04-29 19:26:27 +01:00
syscall.c randomize_kstack: Remove non-functional per-arch entropy filtering 2024-07-05 09:31:51 +02:00
time.c arm64: Make profile_pc() use arch_stack_walk() 2021-12-10 14:06:04 +00:00
topology.c RISC-V Patches for the 6.1 Merge Window, Part 1 2022-10-09 13:24:01 -07:00
trace-events-emulation.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
traps.c arm64 updates for 6.1: 2022-10-06 11:51:49 -07:00
vdso-wrap.S arm64: do not descend to vdso directories twice 2021-01-20 12:18:46 +00:00
vdso.c arm64: vdso: Pass (void *) to virt_to_page() 2023-06-09 10:34:14 +02:00
vdso32-wrap.S arm64: do not descend to vdso directories twice 2021-01-20 12:18:46 +00:00
vmlinux.lds.S arm64: Handle .ARM.attributes section in linker scripts 2025-02-21 13:50:05 +01:00