On Tue, 21 May 2019, Arnaldo Carvalho de Melo wrote: > Em Tue, May 21, 2019 at 06:02:03AM +0300, Vitaly Chikunov escreveu: > > When a host system has kernel headers that are newer than a compiling > > kernel, mksyscalltbl fails with errors such as: > > > > <stdin>: In function 'main': > > <stdin>:271:44: error: '__NR_kexec_file_load' undeclared (first use in > > this function) > > <stdin>:271:44: note: each undeclared identifier is reported only once > > for each function it appears in > > <stdin>:272:46: error: '__NR_pidfd_send_signal' undeclared (first use in > > this function) > > <stdin>:273:43: error: '__NR_io_uring_setup' undeclared (first use in > > this function) > > <stdin>:274:43: error: '__NR_io_uring_enter' undeclared (first use in > > this function) > > <stdin>:275:46: error: '__NR_io_uring_register' undeclared (first use in > > this function) > > tools/perf/arch/arm64/entry/syscalls//mksyscalltbl: line 48: > > /tmp/create-table-xvUQdD: Permission denied > > > > mksyscalltbl is compiled with default host includes, but run with > > It shouldn't :-\ So with this you're making it use the ones shipped in > tools/include? Good, I'll test it, thanks! > > - Arnaldo >
I've hit the issue too, this patch fixes it for me. Tested. Michael > > compiling kernel tree includes, causing some syscall numbers being > > undeclared. > > > > Signed-off-by: Vitaly Chikunov <v...@altlinux.org> > > Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> > > Cc: Arnaldo Carvalho de Melo <a...@kernel.org> > > Cc: Hendrik Brueckner <brueck...@linux.ibm.com> > > Cc: Ingo Molnar <mi...@redhat.com> > > Cc: Jiri Olsa <jo...@redhat.com> > > Cc: Kim Phillips <kim.phill...@arm.com> > > Cc: Namhyung Kim <namhy...@kernel.org> > > Cc: Peter Zijlstra <pet...@infradead.org> > > Cc: Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com> > > --- > > tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl > > b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl > > index c88fd32563eb..459469b7222c 100755 > > --- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl > > +++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl > > @@ -56,7 +56,7 @@ create_table() > > echo "};" > > } > > > > -$gcc -E -dM -x c $input \ > > +$gcc -E -dM -x c -I $incpath/include/uapi $input \ > > |sed -ne 's/^#define __NR_//p' \ > > |sort -t' ' -k2 -nu \ > > |create_table > > -- > > 2.11.0 > > -- > > - Arnaldo >
