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[Qemu-devel] [PATCH v7 25/74] linux-user: Split out chdir
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v7 25/74] linux-user: Split out chdir |
Date: |
Sun, 19 May 2019 13:36:37 -0700 |
Note that chdir is universally provided.
Signed-off-by: Richard Henderson <address@hidden>
---
linux-user/syscall-defs.h | 1 +
linux-user/strace.c | 12 ------------
linux-user/syscall-file.inc.c | 14 ++++++++++++++
linux-user/syscall.c | 6 ------
linux-user/strace.list | 3 ---
5 files changed, 15 insertions(+), 21 deletions(-)
diff --git a/linux-user/syscall-defs.h b/linux-user/syscall-defs.h
index 392bd1579c..3fad9d51f0 100644
--- a/linux-user/syscall-defs.h
+++ b/linux-user/syscall-defs.h
@@ -19,6 +19,7 @@
SYSCALL_DEF_FULL(brk, .impl = impl_brk,
.print_ret = print_syscall_ptr_ret,
.arg_type = { ARG_PTR });
+SYSCALL_DEF(chdir, ARG_STR);
SYSCALL_DEF_ARGS(clone, ARG_CLONEFLAG, ARG_PTR, ARG_PTR, ARG_PTR, ARG_PTR);
SYSCALL_DEF(close, ARG_DEC);
#ifdef TARGET_NR_creat
diff --git a/linux-user/strace.c b/linux-user/strace.c
index 9d6c765715..b234274034 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1113,18 +1113,6 @@ print_access(const struct syscallname *name,
}
#endif
-#ifdef TARGET_NR_chdir
-static void
-print_chdir(const struct syscallname *name,
- abi_long arg0, abi_long arg1, abi_long arg2,
- abi_long arg3, abi_long arg4, abi_long arg5)
-{
- print_syscall_prologue(name);
- print_string(arg0, 1);
- print_syscall_epilogue(name);
-}
-#endif
-
#ifdef TARGET_NR_chroot
static void
print_chroot(const struct syscallname *name,
diff --git a/linux-user/syscall-file.inc.c b/linux-user/syscall-file.inc.c
index 5acd8ecc10..76637fe71b 100644
--- a/linux-user/syscall-file.inc.c
+++ b/linux-user/syscall-file.inc.c
@@ -16,6 +16,20 @@
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+SYSCALL_IMPL(chdir)
+{
+ abi_ulong target_path = arg1;
+ char *p = lock_user_string(target_path);
+ abi_long ret;
+
+ if (!p) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(chdir(p));
+ unlock_user(p, target_path, 0);
+ return ret;
+}
+
SYSCALL_IMPL(close)
{
int fd = arg1;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index affcd81273..0bf5901014 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5384,12 +5384,6 @@ static abi_long do_syscall1(void *cpu_env, int num,
abi_long arg1,
void *p;
switch(num) {
- case TARGET_NR_chdir:
- if (!(p = lock_user_string(arg1)))
- return -TARGET_EFAULT;
- ret = get_errno(chdir(p));
- unlock_user(p, arg1, 0);
- return ret;
#ifdef TARGET_NR_time
case TARGET_NR_time:
{
diff --git a/linux-user/strace.list b/linux-user/strace.list
index c6bb475728..3f79159b63 100644
--- a/linux-user/strace.list
+++ b/linux-user/strace.list
@@ -61,9 +61,6 @@
#ifdef TARGET_NR_capset
{ TARGET_NR_capset, "capset" , "%s(%p,%p)", NULL, NULL },
#endif
-#ifdef TARGET_NR_chdir
-{ TARGET_NR_chdir, "chdir" , NULL, print_chdir, NULL },
-#endif
#ifdef TARGET_NR_chmod
{ TARGET_NR_chmod, "chmod" , NULL, print_chmod, NULL },
#endif
--
2.17.1
- [Qemu-devel] [PATCH v7 22/74] linux-user: Split out unlink, unlinkat, rmdir, (continued)
- [Qemu-devel] [PATCH v7 22/74] linux-user: Split out unlink, unlinkat, rmdir, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 21/74] linux-user: Split out link, linkat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 13/74] linux-user: Split out ipc syscalls, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 23/74] linux-user: Split out execve, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 20/74] linux-user: Split out creat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 24/74] linux-user: Implement execveat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 26/74] linux-user: Split out time, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 27/74] linux-user: Split out mknod, mknodat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 30/74] linux-user: Split out getpid, getppid, getxpid, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 28/74] linux-user: Split out chmod, fchmod, fchmodat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 25/74] linux-user: Split out chdir,
Richard Henderson <=
- [Qemu-devel] [PATCH v7 33/74] linux-user: Split out stime, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 32/74] linux-user: Split out umount, umount2, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 29/74] linux-user: Split out lseek, llseek, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 31/74] linux-user: Split out mount, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 34/74] linux-user: Split out alarm, pause, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 35/74] linux-user: Split out utime, utimes, futimesat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 36/74] linux-user: Split out access, faccessat, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 37/74] linux-user: Split out nice, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 38/74] linux-user: Split out sync, syncfs, Richard Henderson, 2019/05/19
- [Qemu-devel] [PATCH v7 42/74] linux-user: Split out dup, dup2, dup3, Richard Henderson, 2019/05/19