From: Peter Maydell <peter.mayd...@linaro.org> The fchmodat2 syscall is new from Linux 6.6; it is like the existing fchmodat syscall except that it takes a flags parameter.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3019 Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Richard Henderson <richard.hender...@linaro.org> Message-ID: <20250710113123.1109461-1-peter.mayd...@linaro.org> (cherry picked from commit 6a3e132a1be8c9e649967a4eb341d00731be7f51) Signed-off-by: Michael Tokarev <m...@tls.msk.ru> diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 8bfe4912e1..9b397bac7e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -789,6 +789,10 @@ safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff, int, outfd, loff_t *, poutoff, size_t, length, unsigned int, flags) #endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) +safe_syscall4(int, fchmodat2, int, dfd, const char *, filename, + unsigned short, mode, unsigned int, flags) +#endif /* We do ioctl like this rather than via safe_syscall3 to preserve the * "third argument might be integer or pointer or not present" behaviour of @@ -10709,6 +10713,15 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1, ret = get_errno(fchmodat(arg1, p, arg3, 0)); unlock_user(p, arg2, 0); return ret; +#endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) + case TARGET_NR_fchmodat2: + if (!(p = lock_user_string(arg2))) { + return -TARGET_EFAULT; + } + ret = get_errno(safe_fchmodat2(arg1, p, arg3, arg4)); + unlock_user(p, arg2, 0); + return ret; #endif case TARGET_NR_getpriority: /* Note that negative values are valid for getpriority, so we must -- 2.47.2
