We're missing a strace entry for riscv_hwprobe, and using -strace will report it as "Unknown syscall 258".
After this patch we'll have: $ ./build/qemu-riscv64 -strace test_mutex_riscv 110182 riscv_hwprobe(0x7f207efdc700,1,0,0,0,0) = 0 110182 brk(NULL) = 0x0000000000082000 (...) Signed-off-by: Daniel Henrique Barboza <dbarb...@ventanamicro.com> --- linux-user/strace.list | 3 +++ 1 file changed, 3 insertions(+) diff --git a/linux-user/strace.list b/linux-user/strace.list index fdf94ef32a..ab818352a9 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1716,3 +1716,6 @@ { TARGET_NR_clock_gettime64, "clock_gettime64" , NULL, print_clock_gettime64, print_syscall_ret_clock_gettime64 }, #endif +#ifdef TARGET_NR_riscv_hwprobe +{ TARGET_NR_riscv_hwprobe, "riscv_hwprobe" , "%s(%p,%d,%d,%d,%d,%d)", NULL, NULL }, +#endif -- 2.50.1