Re: [PATCH v2 5/6] powerpc/64: Add support for out-of-line static calls

Le 27/09/2022 à 07:18, Benjamin Gray a écrit :

On Mon, 2022-09-26 at 13:16 +0000, Christophe Leroy wrote:

quoted

Build failure with GCC 5.5 (ppc64le_defconfig):

    CC      arch/powerpc/kernel/ptrace/ptrace.o
{standard input}: Assembler messages:
{standard input}:10: Error: .localentry expression for
`__SCT__tp_func_sys_enter' is not a valid power of 2
{standard input}:29: Error: .localentry expression for
`__SCT__tp_func_sys_exit' is not a valid power of 2

Looks support for a literal st_other value in `.localentry` is added in
binutils 2.32 . I'll change the config entry as follows for v3:

   select HAVE_STATIC_CALL if
       PPC32 || (PPC64_ELF_ABI_V2 && LD_VERSION >= 23200)

What about Clang ?