Le 07/12/2022 à 16:18, Mathieu Desnoyers a écrit : > On 2022-12-06 21:09, Michael Ellerman wrote: >> Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> writes: >>> On 2022-12-05 17:50, Michael Ellerman wrote: >>> IMHO the second option would be better because it does not increase the >>> kernel image size as much as KALLSYMS_ALL. >> >> Yes I agree. >> >> Even if that did break something, any breakage would be limited to >> arches which uses function descriptors, which are now all rare. > > Yes, it would only impact those arches using function descriptors, which > are broken today with respect to system call tracing. Are you aware of > other architectures other than PPC64 ELF ABI v1 supported by the Linux > kernel that use function descriptors ? $ git grep "select HAVE_FUNCTION_DESCRIPTORS" arch/ arch/ia64/Kconfig: select HAVE_FUNCTION_DESCRIPTORS arch/parisc/Kconfig: select HAVE_FUNCTION_DESCRIPTORS if 64BIT arch/powerpc/Kconfig: select HAVE_FUNCTION_DESCRIPTORS if PPC64_ELF_ABI_V1 Christophe
