diff options
| author | Stacey Son <sson@FreeBSD.org> | 2023-09-25 21:27:00 +0300 |
|---|---|---|
| committer | Warner Losh <imp@bsdimp.com> | 2023-10-03 17:14:07 -0600 |
| commit | f28a1e4bab4cfdd067bde3d958529575aa8e8f6b (patch) | |
| tree | 698aa4885aac17151ba56a2fc0ade312753a83d3 /bsd-user | |
| parent | ecbe22494d970b7811a1764d2f98e083b02f73d0 (diff) | |
bsd-user: Implement msync(2)
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-15-kariem.taha2.7@gmail.com>
Diffstat (limited to 'bsd-user')
| -rw-r--r-- | bsd-user/bsd-mem.h | 11 | ||||
| -rw-r--r-- | bsd-user/freebsd/os-syscall.c | 4 |
2 files changed, 15 insertions, 0 deletions
diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index 0f9e4a1d4b..5e885823a7 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -88,4 +88,15 @@ static inline abi_long do_bsd_mprotect(abi_long arg1, abi_long arg2, return get_errno(target_mprotect(arg1, arg2, arg3)); } +/* msync(2) */ +static inline abi_long do_bsd_msync(abi_long addr, abi_long len, abi_long flags) +{ + if (!guest_range_valid_untagged(addr, len)) { + /* It seems odd, but POSIX wants this to be ENOMEM */ + return -TARGET_ENOMEM; + } + + return get_errno(msync(g2h_untagged(addr), len, flags)); +} + #endif /* BSD_USER_BSD_MEM_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 2d8f1a953b..2525e0bc31 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -811,6 +811,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_mprotect(arg1, arg2, arg3); break; + case TARGET_FREEBSD_NR_msync: /* msync(2) */ + ret = do_bsd_msync(arg1, arg2, arg3); + break; + #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048 case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */ ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5); |