https://sourceware.org/bugzilla/show_bug.cgi?id=27093
Bug ID: 27093
Summary: should BFD not produce `-z norelro ignored` when
target emulation is unsupported?
Product: binutils
Version: 2.35.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: ndesaulniers at google dot com
CC: amodra at gmail dot com, i at maskray dot me, maskray at
google dot com
Target Milestone: ---
Follow up to LKML discussion:
https://lore.kernel.org/lkml/20201214231827.gg8...@bubble.grove.modra.org/
And LLD bug:
https://bugs.llvm.org/show_bug.cgi?id=48549
It looks like BFD and LLD disagree about which aarch64 emulation targets to set
relro program headers for. For the Linux kernel, we'd like to explicitly
disable relro, regardless of target emulation mode (The kernel tries to use
-maarch64elf, but will fall back to -maarch64linux), and linker.
I can understand warning if `-z relro` (enabling) was set, but unsupported. But
warning on `-z norelro` (disabling) feels like a papercut.
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