https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291270
Bug ID: 291270
Summary: mfi_linux.ko fails to load with module loader local
symbol resolution disabled
Product: Base System
Version: 16.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Blocks: 207898
See
https://lists.freebsd.org/archives/freebsd-current/2025-November/009500.html
for background.
To reproduce, set
debug.link_elf_leak_locals=0
debug.link_elf_obj_leak_locals=0
then
# kldload mfi_linux.ko
link_elf_obj: symbol linux_device_register_handler undefined
linker_load_file: /boot/kernel/mfi_linux.ko - unsupported file type
kldload: an error occurred while loading module mfi_linux.ko. Please check
dmesg(8) for more details.
The dependent module's Makefile should have an EXPORT_SYMS= line that lists all
of the symbols that should be intentionally exported. Another option (but not
preferred) is to just set EXPORT_SYMS=YES, unless we explicitly want all
symbols exported.
Referenced Bugs:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207898
[Bug 207898] kernel linker behaves differently on amd64 vs. i386
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