[PATCH 0/2] x86: Discard .note.gnu.property sections

H.J. Lu
2020-01-24T18:18:29Z

With the command-line option, -mx86-used-note=yes, the x86 assembler
in binutils 2.32 and above generates a program property note in a note
section, .note.gnu.property, to encode used x86 ISAs and features. But
x86 kernel vmlinux and vDSO linker scripts only contain a signle NOTE
segment which may not be incompatible with note.gnu.property sections.
Since note.gnu.property section from kernel are unused, they should be
discarded by adding

/DISCARD/ : {
*(.note.gnu.property)
}

before .notes sections.

H.J. Lu (2):
x86: Discard .note.gnu.property sections in vDSO
x86: Discard .note.gnu.property sections in vmlinux

arch/x86/entry/vdso/vdso-layout.lds.S | 4 ++++
arch/x86/kernel/vmlinux.lds.S | 11 +++++++++++
2 files changed, 15 insertions(+)

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2.24.1