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[PATCH v5 14/23] bsd-user: Implement msync(2)
From: |
Karim Taha |
Subject: |
[PATCH v5 14/23] bsd-user: Implement msync(2) |
Date: |
Thu, 14 Sep 2023 23:40:58 +0300 |
From: Stacey Son <sson@FreeBSD.org>
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>
---
bsd-user/bsd-mem.h | 11 +++++++++++
bsd-user/freebsd/os-syscall.c | 4 ++++
2 files changed, 15 insertions(+)
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 74c0624637..5aebb18805 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -607,6 +607,10 @@ 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);
--
2.42.0
- [PATCH v5 00/23] bsd-user: Implement mmap related system calls for FreeBSD., Karim Taha, 2023/09/14
- [PATCH v5 01/23] bsd-user: Implement struct target_ipc_perm, Karim Taha, 2023/09/14
- [PATCH v5 03/23] bsd-user: Declarations for ipc_perm and shmid_ds conversion functions, Karim Taha, 2023/09/14
- [PATCH v5 06/23] bsd-user: Implement shm_rename(2) system call, Karim Taha, 2023/09/14
- [PATCH v5 05/23] bsd-user: Implement shm_open2(2) system call, Karim Taha, 2023/09/14
- [PATCH v5 04/23] bsd-user: Introduce freebsd/os-misc.h to the source tree, Karim Taha, 2023/09/14
- [PATCH v5 07/23] bsd-user: Add bsd-mem.c to meson.build, Karim Taha, 2023/09/14
- [PATCH v5 02/23] bsd-user: Implement struct target_shmid_ds, Karim Taha, 2023/09/14
- [PATCH v5 13/23] bsd-user: Implement mprotect(2), Karim Taha, 2023/09/14
- [PATCH v5 14/23] bsd-user: Implement msync(2),
Karim Taha <=
- [PATCH v5 08/23] bsd-user: Implement target_set_brk function in bsd-mem.c instead of os-syscall.c, Karim Taha, 2023/09/14
- [PATCH v5 10/23] bsd-user: Implement shmid_ds conversion between host and target., Karim Taha, 2023/09/14
- [PATCH v5 11/23] bsd-user: Introduce bsd-mem.h to the source tree, Karim Taha, 2023/09/14
- [PATCH v5 12/23] bsd-user: Implement mmap(2) and munmap(2), Karim Taha, 2023/09/14
- [PATCH v5 18/23] bsd-user: Implement do_obreak function, Karim Taha, 2023/09/14
- [PATCH v5 09/23] bsd-user: Implement ipc_perm conversion between host and target., Karim Taha, 2023/09/14
- [PATCH v5 16/23] bsd-user: Implment madvise(2) to match the linux-user implementation., Karim Taha, 2023/09/14