Fangrui Song <maskray@xxxxxxxxxx> writes: > The actual intention is that no dynamic relocation exists. However, some > GNU ld ports produce unneeded R_*_NONE. (If a port fails to determine > the exact .rel[a].dyn size, the trailing zeros become R_*_NONE > relocations. E.g. ld's powerpc port recently fixed > https://sourceware.org/bugzilla/show_bug.cgi?id=29540) R_*_NONE are > generally no-op in the dynamic loaders. So just ignore them. > > With the change, we can remove ARCH_REL_TYPE_ABS. ARCH_REL_TYPE_ABS is a > bit misnomer as ports may check RELAVETIVE/GLOB_DAT/JUMP_SLOT which are > not called "absolute relocations". (The patch is motivated by the arm64 > port missing R_AARCH64_RELATIVE.) > > Signed-off-by: Fangrui Song <maskray@xxxxxxxxxx> > Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx> > Reviewed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> # for vDSO, aarch64 > Tested-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> # for aarch64 > --- > Changes from v2: > * rebase > > Changes from v3: > * Add a comment before `include $(srctree)/lib/vdso/Makefile` in every touched arch Makefile > --- > arch/arm/vdso/Makefile | 4 +--- > arch/arm64/kernel/vdso/Makefile | 4 +--- > arch/arm64/kernel/vdso32/Makefile | 3 --- > arch/csky/kernel/vdso/Makefile | 4 +--- > arch/loongarch/vdso/Makefile | 4 +--- > arch/mips/vdso/Makefile | 4 +--- > arch/powerpc/kernel/vdso/Makefile | 2 +- Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc) cheers
