On Tue, 26 Oct 2021 12:23:09 -0700
Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> On Fri, Oct 08, 2021 at 11:13:36AM +0200, Jiri Olsa wrote:
> > Adding simple module that uses multi direct interface:
> >
> > register_ftrace_direct_multi
> > unregister_ftrace_direct_multi
> >
> > The init function registers trampoline for 2 functions,
> > and exit function unregisters them.
> >
> > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
>
> Building s390:defconfig ... failed
> --------------
> Error log:
> <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
> {standard input}: Assembler messages:
> {standard input}:11: Error: Unrecognized opcode: `pushq'
> {standard input}:12: Error: Unrecognized opcode: `movq'
> {standard input}:13: Error: Unrecognized opcode: `pushq'
> {standard input}:14: Error: Unrecognized opcode: `movq'
> {standard input}:15: Error: Unrecognized opcode: `call'
> {standard input}:16: Error: Unrecognized opcode: `popq'
> {standard input}:17: Error: Unrecognized opcode: `leave'
> {standard input}:18: Error: Unrecognized opcode: `ret'
> make[3]: *** [scripts/Makefile.build:288: samples/ftrace/ftrace-direct-multi.o] Error 1
> make[2]: *** [scripts/Makefile.build:571: samples/ftrace] Error 2
> make[1]: *** [Makefile:1993: samples] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make: *** [Makefile:226: __sub-make] Error 2
>
>
https://lore.kernel.org/all/YXAqZ%2FEszRisunQw@osiris/
-- Steve
