On 2022-12-05 15:11, Michael Jeanson wrote:
Michael Jeanson <mjeanson@xxxxxxxxxxxx> writes:
In v5.7 the powerpc syscall entry/exit logic was rewritten in C, on
PPC64_ELF_ABI_V1 this resulted in the symbols in the syscall table
changing from their dot prefixed variant to the non-prefixed ones.
Since ftrace prefixes a dot to the syscall names when matching them to
build its syscall event list, this resulted in no syscall events being
available.
Remove the PPC64_ELF_ABI_V1 specific version of
arch_syscall_match_sym_name to have the same behavior across all powerpc
variants.
This doesn't seem to work for me.
Event with it applied I still don't see anything in
/sys/kernel/debug/tracing/events/syscalls
Did we break it in some other way recently?
cheers
I did some further testing, my config also enabled KALLSYMS_ALL, when I remove
it there is indeed no syscall events.
