On 6/27/25 2:08 PM, Ben Zong-You Xie wrote:

glibc does not define SYS_futex for 32-bit architectures using 64-bit time_t e.g. riscv32, therefore this test fails to compile since it does not find SYS_futex in C library headers. Define SYS_futex as SYS_futex_time64 in this situation to ensure successful compilation and compatibility.

Signed-off-by: Cynthia Huang cynthia@andestech.com Signed-off-by: Ben Zong-You Xie ben717@andestech.com

Reviewed-by: Muhammad Usama Anjum usama.anjum@collabora.com

---

Changes since v1:

• Fix the SOB chain

v1 : https://lore.kernel.org/all/20250527093536.3646143-1-ben717@andestech.com/

tools/testing/selftests/futex/include/futextest.h | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/tools/testing/selftests/futex/include/futextest.h b/tools/testing/selftests/futex/include/futextest.h index ddbcfc9b7bac..7a5fd1d5355e 100644 --- a/tools/testing/selftests/futex/include/futextest.h +++ b/tools/testing/selftests/futex/include/futextest.h @@ -47,6 +47,17 @@ typedef volatile u_int32_t futex_t; FUTEX_PRIVATE_FLAG) #endif

+/*

• • SYS_futex is expected from system C library, in glibc some 32-bit
• • architectures (e.g. RV32) are using 64-bit time_t, therefore it doesn't have
• • SYS_futex defined but just SYS_futex_time64. Define SYS_futex as
• • SYS_futex_time64 in this situation to ensure the compilation and the
• • compatibility.
• */

+#if !defined(SYS_futex) && defined(SYS_futex_time64) +#define SYS_futex SYS_futex_time64 +#endif

/**

• futex() - SYS_futex syscall wrapper
• @uaddr: address of first futex

-- 2.34.1