| From 692abb6d751a41c7f0206771ecd454933750256e Mon Sep 17 00:00:00 2001 |
| From: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| Date: Wed, 2 Nov 2022 13:28:02 +0100 |
| Subject: [PATCH] link with -latomic if needed (again ...) |
| |
| numactl unconditionally uses __atomic_fetch_and but some architectures |
| (e.g. sparc) needs to link with -latomic to be able to use it. So check |
| if -latomic is needed and update numa.pc accordingly. |
| |
| This linking was made by e0de0d9e981ddb53bdeb4a4b9dc43046c9ff4ff9 but |
| wrongly reverted by 10c277c20768be9a563f75265bcd7e73954763ad resulting |
| in the following build failure on sparc or microblaze: |
| |
| /nvmedata/autobuild/instance-7/output-1/per-package/numactl/host/bin/../lib/gcc/sparc-buildroot-linux-uclibc/10.4.0/../../../../sparc-buildroot-linux-uclibc/bin/ld: ./.libs/libnuma.a(libnuma.o): in function `numa_police_memory': |
| libnuma.c:(.text+0xe28): undefined reference to `__atomic_fetch_and_1' |
| |
| Fixes: |
| - http://autobuild.buildroot.org/results/54b7567d804d9abff56f47cd26bae774c1e38669 |
| |
| Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| [Upstream status: https://github.com/numactl/numactl/pull/144] |
| --- |
| configure.ac | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| diff --git a/configure.ac b/configure.ac |
| index 8510fc5..ebf9917 100644 |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -27,6 +27,8 @@ AM_CONDITIONAL([RISCV64], [test x"${target_cpu}" = x"riscv64"]) |
| |
| AC_CONFIG_FILES([Makefile]) |
| |
| +AC_SEARCH_LIBS([__atomic_fetch_and_1], [atomic]) |
| + |
| # GCC tries to be "helpful" and only issue a warning for unrecognized |
| # attributes. So we compile the test with Werror, so that if the |
| # attribute is not recognized the compilation fails |
| -- |
| 2.35.1 |
| |
