Le 14/09/2022 à 17:47, Nicholas Piggin a écrit : > Const function pointers live in .data.rel.ro rather than .rodata because > they must be relocated. This change prevents powerpc/32 from generating > R_PPC_UADDR32 relocations (which are not handled). The sys_call_table is > moved to writeable memory, but a later change will move it back.
Aren't you missing commit c7acee3d2f12 ("powerpc: align syscall table for ppc32") ? I can't see any R_PPC_UADDR32 relocations generated by ppc4xx_defconfig + CONFIG_RELOCATABLE unless I revert that commit. > > After this patch, 44x_defconfig + CONFIG_RELOCATABLE boots to busybox. > > Signed-off-by: Nicholas Piggin <npig...@gmail.com> > --- > arch/powerpc/kernel/systbl.S | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S > index cb3358886203..0bec33e86f50 100644 > --- a/arch/powerpc/kernel/systbl.S > +++ b/arch/powerpc/kernel/systbl.S > @@ -12,7 +12,11 @@ > > #include <asm/ppc_asm.h> > > +#ifdef CONFIG_RELOCATABLE > +.section .data.rel.ro,"aw" > +#else > .section .rodata,"a" > +#endif > > #ifdef CONFIG_PPC64 > .p2align 3