Re: [PATCH v5 00/10] x86/asm: Compile-time asm code validation

From: Josh Poimboeuf
Date: Wed Jun 10 2015 - 08:16:41 EST

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On Wed, Jun 10, 2015 at 07:06:08AM -0500, Josh Poimboeuf wrote:
> There are still a lot of outstanding warnings (which I'll paste as a
> reply to this email). Once those are all cleaned up, we can change the
> warnings to build errors and change the default to
> CONFIG_ASM_VALIDATION=y so the asm code stays clean.

Here are the 194 outstanding warnings I'm seeing with my Fedora kernel
config. I'll keep chipping away at them.

asmvalidate: arch/x86/crypto/crc32c-pcl-intel-asm_64.o: crc_pcl()+0x84: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/crc32c-pcl-intel-asm_64.o: crc_pcl(): unsupported fallthrough at end of function
asmvalidate: arch/x86/crypto/sha1_avx2_x86_64_asm.o: sha1_transform_avx2()+0x645: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/sha1_avx2_x86_64_asm.o: sha1_transform_avx2()+0x1418: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/sha1_avx2_x86_64_asm.o: sha1_transform_avx2()+0x16e4: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/sha1_avx2_x86_64_asm.o: sha1_transform_avx2()+0x1a22: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: __camellia_enc_blk16(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: __camellia_dec_blk16(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_ecb_enc_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_ecb_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_cbc_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_ctr_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_xts_crypt_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_xts_enc_16way()+0xb: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_xts_enc_16way(): unsupported fallthrough at end of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_xts_dec_16way()+0x1e: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx-asm_64.o: camellia_xts_dec_16way(): unsupported fallthrough at end of function
asmvalidate: arch/x86/crypto/cast5-avx-x86_64-asm_64.o: cast5_ecb_enc_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast5-avx-x86_64-asm_64.o: cast5_ecb_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast5-avx-x86_64-asm_64.o: cast5_cbc_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast5-avx-x86_64-asm_64.o: cast5_ctr_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_ecb_enc_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_ecb_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_cbc_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_ctr_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_xts_enc_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/cast6-avx-x86_64-asm_64.o: cast6_xts_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_ecb_enc_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_ecb_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_cbc_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_ctr_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_xts_enc_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/twofish-avx-x86_64-asm_64.o: twofish_xts_dec_8way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_ecb_enc_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_ecb_dec_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_cbc_dec_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_ctr_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_xts_enc_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx-x86_64-asm_64.o: serpent_xts_dec_8way_avx(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: __camellia_enc_blk32(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: __camellia_dec_blk32(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_ecb_enc_32way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_ecb_dec_32way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_cbc_dec_32way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_ctr_32way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_xts_crypt_32way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_xts_enc_32way()+0xb: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_xts_enc_32way(): unsupported fallthrough at end of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_xts_dec_32way()+0x1e: unsupported jump to outside of function
asmvalidate: arch/x86/crypto/camellia-aesni-avx2-asm_64.o: camellia_xts_dec_32way(): unsupported fallthrough at end of function
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_ecb_enc_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_ecb_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_cbc_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_ctr_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_xts_enc_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/crypto/serpent-avx2-asm_64.o: serpent_xts_dec_16way(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/entry/entry_64.o: native_usergs_sysret64(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/entry_64.o: .entry.text+0x399: return instruction outside of a function
asmvalidate: arch/x86/entry/entry_64.o: .entry.text+0x1ba9: return instruction outside of a function
asmvalidate: arch/x86/entry/entry_64.o: .entry.text+0x1bd5: return instruction outside of a function
asmvalidate: arch/x86/entry/entry_64.o: .entry.text+0x20e4: return instruction outside of a function
asmvalidate: arch/x86/entry/entry_64.o: .entry.text+0x21be: return instruction outside of a function
asmvalidate: arch/x86/entry/vdso/vdso32/int80.o: __kernel_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/vdso/vdso32/int80.o: __kernel_rt_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/vdso/vdso32/syscall.o: __kernel_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/vdso/vdso32/syscall.o: __kernel_rt_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/vdso/vdso32/sysenter.o: __kernel_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/entry/vdso/vdso32/sysenter.o: __kernel_rt_sigreturn(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/mcount_64.o: .entry.text+0x0: return instruction outside of a function
asmvalidate: arch/x86/kernel/mcount_64.o: .entry.text+0xbb: return instruction outside of a function
asmvalidate: arch/x86/kernel/mcount_64.o: .entry.text+0x2b7: return instruction outside of a function
asmvalidate: arch/x86/kernel/relocate_kernel_64.o: .text+0x6b: return instruction outside of a function
asmvalidate: arch/x86/kernel/relocate_kernel_64.o: .text+0xc7: return instruction outside of a function
asmvalidate: arch/x86/kernel/relocate_kernel_64.o: .text+0x110: return instruction outside of a function
asmvalidate: arch/x86/kernel/relocate_kernel_64.o: .text+0x145: return instruction outside of a function
asmvalidate: arch/x86/kernel/relocate_kernel_64.o: .text+0x1c4: return instruction outside of a function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_trap_table(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_mmu_update(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_gdt(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_stack_switch(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_callbacks(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_fpu_taskswitch(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_sched_op_compat(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_dom0_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_debugreg(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_get_debugreg(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_update_descriptor(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_memory_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_multicall(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_update_va_mapping(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_timer_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_event_channel_op_compat(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_xen_version(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_console_io(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_physdev_op_compat(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_grant_table_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_vm_assist(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_update_va_mapping_otherdomain(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_iret(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_vcpu_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_set_segment_base(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_mmuext_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_xsm_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_nmi_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_sched_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_callback_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_xenoprof_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_event_channel_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_physdev_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_hvm_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_sysctl(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_domctl(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_kexec_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_tmem_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_xc_reserved_op(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_mca(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_1(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_2(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_3(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_4(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_5(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_6(): unsupported fallthrough at end of function
asmvalidate: arch/x86/kernel/head_64.o: xen_hypercall_arch_7(): unsupported fallthrough at end of function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x18: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x34: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x47: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x74: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0xa7: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0xd3: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0xfa: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x127: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x14d: return instruction outside of a function
asmvalidate: arch/x86/net/bpf_jit.o: .text+0x16d: return instruction outside of a function
asmvalidate: arch/x86/platform/efi/efi_thunk_64.o: efi64_thunk(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/platform/efi/efi_thunk_64.o: efi_enter32(): unsupported fallthrough at end of function
asmvalidate: arch/x86/platform/efi/efi_thunk_64.o: efi_enter32(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/xen/xen-asm.o: xen_irq_enable_direct(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/xen/xen-asm.o: xen_restore_fl_direct(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/xen/xen-asm.o: .text+0x7f: return instruction outside of a function
asmvalidate: arch/x86/xen/xen-asm_64.o: .text+0xa: return instruction outside of a function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_syscall_target()+0xe: unsupported jump to outside of function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_syscall_target(): unsupported fallthrough at end of function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_syscall32_target()+0xe: unsupported jump to outside of function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_syscall32_target(): unsupported fallthrough at end of function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_sysenter_target()+0xe: unsupported jump to outside of function
asmvalidate: arch/x86/xen/xen-asm_64.o: xen_sysenter_target(): unsupported fallthrough at end of function
asmvalidate: arch/x86/power/hibernate_asm_64.o: .text+0x69: return instruction outside of a function
asmvalidate: arch/x86/power/hibernate_asm_64.o: .text+0x16d: return instruction outside of a function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_to_user()+0x15: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_to_user()+0x1f: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_to_user()+0x25: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_to_user(): unsupported fallthrough at end of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_from_user()+0x15: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_from_user()+0x1f: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_from_user()+0x25: unsupported jump to outside of function
asmvalidate: arch/x86/lib/copy_user_64.o: _copy_from_user(): unsupported fallthrough at end of function
asmvalidate: arch/x86/lib/copy_user_64.o: alternative jump to outside the scope of original function _copy_to_user
asmvalidate: arch/x86/lib/copy_user_64.o: alternative jump to outside the scope of original function _copy_to_user
asmvalidate: arch/x86/lib/copy_user_64.o: alternative jump to outside the scope of original function _copy_from_user
asmvalidate: arch/x86/lib/copy_user_64.o: alternative jump to outside the scope of original function _copy_from_user
asmvalidate: arch/x86/lib/csum-copy_64.o: csum_partial_copy_generic()+0x6: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_1()+0x14: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_2()+0x4: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_2()+0x1e: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_4()+0x4: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_4()+0x1a: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_8()+0x4: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: __get_user_8()+0x1a: unsupported jump to outside of function
asmvalidate: arch/x86/lib/getuser.o: .text+0xc5: return instruction outside of a function
asmvalidate: arch/x86/lib/putuser.o: __put_user_1()+0x14: unsupported jump to outside of function
asmvalidate: arch/x86/lib/putuser.o: __put_user_2()+0x1b: unsupported jump to outside of function
asmvalidate: arch/x86/lib/putuser.o: __put_user_4()+0x1b: unsupported jump to outside of function
asmvalidate: arch/x86/lib/putuser.o: __put_user_8()+0x1b: unsupported jump to outside of function
asmvalidate: arch/x86/lib/putuser.o: .text+0xc1: return instruction outside of a function
asmvalidate: arch/x86/boot/copy.o: copy_from_fs(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/boot/copy.o: copy_to_fs(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/boot/compressed/head_64.o: .text+0x16e: return instruction outside of a function
asmvalidate: arch/x86/boot/compressed/head_64.o: .text+0x172: return instruction outside of a function
asmvalidate: arch/x86/boot/compressed/head_64.o: startup_32()+0x38: unsupported jump to outside of function
asmvalidate: arch/x86/boot/compressed/head_64.o: startup_32(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/compressed/head_64.o: startup_32(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/boot/compressed/head_64.o: efi32_stub_entry()+0x37: unsupported jump to outside of function
asmvalidate: arch/x86/boot/compressed/head_64.o: efi32_stub_entry(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/compressed/head_64.o: efi32_stub_entry(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/boot/compressed/head_64.o: efi64_stub_entry()+0x1f: unsupported jump to outside of function
asmvalidate: arch/x86/boot/compressed/head_64.o: efi64_stub_entry(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/compressed/efi_thunk_64.o: efi_enter32(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/compressed/efi_thunk_64.o: efi_enter32(): missing FP_SAVE/RESTORE macros
asmvalidate: arch/x86/boot/header.o: die()+0x1: unsupported jump to outside of function
asmvalidate: arch/x86/boot/header.o: die(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/pmjump.o: protected_mode_jump()+0x11: unsupported jump to outside of function
asmvalidate: arch/x86/boot/pmjump.o: protected_mode_jump(): unsupported fallthrough at end of function
asmvalidate: arch/x86/boot/pmjump.o: in_pm32()+0x1c: unsupported jump to outside of function
asmvalidate: arch/x86/boot/pmjump.o: in_pm32(): unsupported fallthrough at end of function

--
Josh
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Next message: Tetsuo Handa: "Re: [RFC] panic_on_oom_timeout"
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In reply to: Josh Poimboeuf: "Re: [PATCH v5 01/10] x86/asm: Add FP_SAVE/RESTORE frame pointer macros"
Next in thread: Andi Kleen: "Re: [PATCH v5 00/10] x86/asm: Compile-time asm code validation"
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