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[PULL 06/11] bsd-user: Implement link, linkat, unlink and unlinkat
From: |
Warner Losh |
Subject: |
[PULL 06/11] bsd-user: Implement link, linkat, unlink and unlinkat |
Date: |
Sun, 19 Jun 2022 12:05:26 -0600 |
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/bsd-file.h | 54 +++++++++++++++++++++++++++++++++++
bsd-user/freebsd/os-syscall.c | 16 +++++++++++
2 files changed, 70 insertions(+)
diff --git a/bsd-user/bsd-file.h b/bsd-user/bsd-file.h
index fd8aba96180..93e142d46e7 100644
--- a/bsd-user/bsd-file.h
+++ b/bsd-user/bsd-file.h
@@ -375,4 +375,58 @@ static abi_long do_bsd_renameat(abi_long arg1, abi_long
arg2,
return ret;
}
+/* link(2) */
+static abi_long do_bsd_link(abi_long arg1, abi_long arg2)
+{
+ abi_long ret;
+ void *p1, *p2;
+
+ LOCK_PATH2(p1, arg1, p2, arg2);
+ ret = get_errno(link(p1, p2)); /* XXX path(p1), path(p2) */
+ UNLOCK_PATH2(p1, arg1, p2, arg2);
+
+ return ret;
+}
+
+/* linkat(2) */
+static abi_long do_bsd_linkat(abi_long arg1, abi_long arg2,
+ abi_long arg3, abi_long arg4, abi_long arg5)
+{
+ abi_long ret;
+ void *p1, *p2;
+
+ LOCK_PATH2(p1, arg2, p2, arg4);
+ ret = get_errno(linkat(arg1, p1, arg3, p2, arg5));
+ UNLOCK_PATH2(p1, arg2, p2, arg4);
+
+ return ret;
+}
+
+/* unlink(2) */
+static abi_long do_bsd_unlink(abi_long arg1)
+{
+ abi_long ret;
+ void *p;
+
+ LOCK_PATH(p, arg1);
+ ret = get_errno(unlink(p)); /* XXX path(p) */
+ UNLOCK_PATH(p, arg1);
+
+ return ret;
+}
+
+/* unlinkat(2) */
+static abi_long do_bsd_unlinkat(abi_long arg1, abi_long arg2,
+ abi_long arg3)
+{
+ abi_long ret;
+ void *p;
+
+ LOCK_PATH(p, arg2);
+ ret = get_errno(unlinkat(arg1, p, arg3)); /* XXX path(p) */
+ UNLOCK_PATH(p, arg2);
+
+ return ret;
+}
+
#endif /* BSD_FILE_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index 2d62a546328..c847e4d20c6 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -317,6 +317,22 @@ static abi_long freebsd_syscall(void *cpu_env, int num,
abi_long arg1,
ret = do_bsd_renameat(arg1, arg2, arg3, arg4);
break;
+ case TARGET_FREEBSD_NR_link: /* link(2) */
+ ret = do_bsd_link(arg1, arg2);
+ break;
+
+ case TARGET_FREEBSD_NR_linkat: /* linkat(2) */
+ ret = do_bsd_linkat(arg1, arg2, arg3, arg4, arg5);
+ break;
+
+ case TARGET_FREEBSD_NR_unlink: /* unlink(2) */
+ ret = do_bsd_unlink(arg1);
+ break;
+
+ case TARGET_FREEBSD_NR_unlinkat: /* unlinkat(2) */
+ ret = do_bsd_unlinkat(arg1, arg2, arg3);
+ break;
+
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;
--
2.33.1
- [PULL 00/11] Bsd user syscall 2022q2 patches, Warner Losh, 2022/06/19
- [PULL 02/11] bsd-user: Implement fdatasync, fsync and close_from, Warner Losh, 2022/06/19
- [PULL 01/11] bsd-user: Implement open, openat and close, Warner Losh, 2022/06/19
- [PULL 04/11] bsd-user: Implement chdir and fchdir, Warner Losh, 2022/06/19
- [PULL 05/11] bsd-user: Implement rename and renameat, Warner Losh, 2022/06/19
- [PULL 03/11] bsd-user: Implement revoke, access, eaccess and faccessat, Warner Losh, 2022/06/19
- [PULL 07/11] bsd-user: Implement mkdir and mkdirat, Warner Losh, 2022/06/19
- [PULL 09/11] bsd-user: Implement dup and dup2, Warner Losh, 2022/06/19
- [PULL 11/11] bsd-user: Implement acct and sync, Warner Losh, 2022/06/19
- [PULL 06/11] bsd-user: Implement link, linkat, unlink and unlinkat,
Warner Losh <=
- [PULL 08/11] bsd-user: Implement rmdir and undocumented __getcwd, Warner Losh, 2022/06/19
- [PULL 10/11] bsd-user: Implement trunctate and ftruncate, Warner Losh, 2022/06/19
- Re: [PULL 00/11] Bsd user syscall 2022q2 patches, Richard Henderson, 2022/06/19