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[PATCH 16/22] Implement mincore(2)
From: |
Karim Taha |
Subject: |
[PATCH 16/22] Implement mincore(2) |
Date: |
Sat, 19 Aug 2023 11:48:00 +0200 |
From: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
---
bsd-user/bsd-mem.h | 23 +++++++++++++++++++++++
bsd-user/freebsd/os-syscall.c | 4 ++++
2 files changed, 27 insertions(+)
diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h
index f76881519c..edbccd3111 100644
--- a/bsd-user/bsd-mem.h
+++ b/bsd-user/bsd-mem.h
@@ -144,4 +144,27 @@ static inline abi_long do_bsd_minherit(abi_long addr,
abi_long len,
return get_errno(minherit(g2h_untagged(addr), len, inherit));
}
+/* mincore(2) */
+static inline abi_long do_bsd_mincore(abi_ulong target_addr, abi_ulong len,
+ abi_ulong target_vec)
+{
+ abi_long ret;
+ void *p, *a;
+
+ a = lock_user(VERIFY_WRITE, target_addr, len, 0);
+ if (a == NULL) {
+ return -TARGET_EFAULT;
+ }
+ p = lock_user_string(target_vec);
+ if (p == NULL) {
+ unlock_user(a, target_addr, 0);
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(mincore(a, len, p));
+ unlock_user(p, target_vec, ret);
+ unlock_user(a, target_addr, 0);
+
+ return ret;
+}
+
#endif /* BSD_USER_BSD_MEM_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index 96469f6a63..1db0907504 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -527,6 +527,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num,
abi_long arg1,
ret = do_bsd_minherit(arg1, arg2, arg3);
break;
+ case TARGET_FREEBSD_NR_mincore: /* mincore(2) */
+ ret = do_bsd_mincore(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);
--
2.40.0
- [PATCH 13/22] Implement mprotect(2), (continued)
- [PATCH 13/22] Implement mprotect(2), Karim Taha, 2023/08/19
- [PATCH 14/22] Implement msync(2), Karim Taha, 2023/08/19
- [PATCH 15/22] Implement mlock(2), munlock(2), mlockall(2), munlockall(2), madvise(2), minherit(2), Karim Taha, 2023/08/19
- Re: [PATCH 15/22] Implement mlock(2), munlock(2), mlockall(2), munlockall(2), madvise(2), minherit(2), Warner Losh, 2023/08/20
- Re: [PATCH 15/22] Implement mlock(2), munlock(2), mlockall(2), munlockall(2), madvise(2), minherit(2), Richard Henderson, 2023/08/20
- [PATCH 16/22] Implement mincore(2),
Karim Taha <=
- [PATCH 17/22] Implement do_obreak function, Karim Taha, 2023/08/19
- [PATCH 18/22] Implement shm_open(2), Karim Taha, 2023/08/19
- [PATCH 19/22] Implement shm_unlink(2) and shmget(2), Karim Taha, 2023/08/19
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