Messages in this thread | | | Date | Thu, 24 Nov 2022 12:31:31 +0000 | From | Vincent Donnefort <> | Subject | Bug: MODPOST mismatch ignored due to LTO |
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Hi all,
It seems that enabling LTO breaks the check for section mismatch in modpost.
If I create on purpose a mismatch here's the output without LTO
check_section_mismatch() fromsec=.text tosec=.init.text sym=kvm_arch_vcpu_create
=> section mismatch in reference: kvm_vm_ioctl_create_vcpu (section: .text) -> kvm_arch_vcpu_create (section: .init.text)
While with LTO:
check_section_mismatch() fromsec=.text.kvm_vm_ioctl_create_vcpu tosec=.init.text sym=kvm_arch_vcpu_create
=> mismatch ignored, the section ".text.kvm_vm_ioctl_create_vcpu" is unsurprisingly unknown
LTO seems to append the symbol name to the section which is a problem for modpost.
Is that a known issue?
Thanks, Vincent
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