| From 0a3222338efc108c831fbdd719a47d35f4b0adcd Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Wed, 18 Aug 2021 06:49:25 +0000 |
| Subject: [PATCH] aio_linux: Check if syscall exists before using it |
| |
| Return -ENOSYS if not implememented, fixes build on arches like RISCV32 |
| Fixes |
| tpool/aio_linux.cc:63:20: error: '__NR_io_getevents' was not declared in this scope; did you mean 'io_getevents'? |
| 63 | int ret= syscall(__NR_io_getevents, reinterpret_cast<long>(ctx), |
| | ^~~~~~~~~~~~~~~~~ |
| | io_getevents |
| |
| Upstream-Staus: Pending |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| Upstream-Status: Pending |
| |
| tpool/aio_linux.cc | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| diff --git a/tpool/aio_linux.cc b/tpool/aio_linux.cc |
| index 4abc213..da75411 100644 |
| --- a/tpool/aio_linux.cc |
| +++ b/tpool/aio_linux.cc |
| @@ -58,6 +58,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 - 1301 USA*/ |
| */ |
| static int my_getevents(io_context_t ctx, long min_nr, long nr, io_event *ev) |
| { |
| +#ifdef __NR_io_getevents |
| int saved_errno= errno; |
| int ret= syscall(__NR_io_getevents, reinterpret_cast<long>(ctx), |
| min_nr, nr, ev, 0); |
| @@ -67,6 +68,9 @@ static int my_getevents(io_context_t ctx, long min_nr, long nr, io_event *ev) |
| errno= saved_errno; |
| } |
| return ret; |
| +#else |
| + return -ENOSYS; |
| +#endif |
| } |
| |
| |
| -- |
| 2.29.2 |
| |