579aee9fc5
This is a follow on from commit 0d362be5b142 ("Makefile: link with -z noexecstack --no-warn-rwx-segments") for arch/powerpc/boot to address wanrings like: ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions This fixes issue https://github.com/linuxppc/issues/issues/417 Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20221010165721.106267e6@canb.auug.org.au
To extract the kernel vmlinux, System.map, .config or initrd from the zImage binary: objcopy -j .kernel:vmlinux -O binary zImage vmlinux.gz objcopy -j .kernel:System.map -O binary zImage System.map.gz objcopy -j .kernel:.config -O binary zImage config.gz objcopy -j .kernel:initrd -O binary zImage.initrd initrd.gz Peter