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 compiling kernel tree includes, causing some syscall numbers being undeclared. Signed-off-by: Vitaly Chikunov <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Hendrik Brueckner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kim Phillips <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ravi Bangoria <[email protected]> --- 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
