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[Qemu-devel] [PATCH v2 012/108] linux-user: Split out open, openat
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v2 012/108] linux-user: Split out open, openat |
Date: |
Sat, 9 Jun 2018 17:00:44 -1000 |
Signed-off-by: Richard Henderson <address@hidden>
---
linux-user/syscall.c | 58 +++++++++++++++++++++++++++++---------------
1 file changed, 38 insertions(+), 20 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index aa6c4e1577..a4d0f2720f 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8116,6 +8116,40 @@ IMPL(exit)
g_assert_not_reached();
}
+#ifdef TARGET_NR_open
+IMPL(open)
+{
+ char *p = lock_user_string(arg1);
+ abi_long ret;
+
+ if (!p) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
+ target_to_host_bitmask(arg2, fcntl_flags_tbl),
+ arg3));
+ unlock_user(p, arg1, 0);
+ fd_trans_unregister(ret);
+ return ret;
+}
+#endif
+
+IMPL(openat)
+{
+ char *p = lock_user_string(arg2);
+ abi_long ret;
+
+ if (!p) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(do_openat(cpu_env, arg1, p,
+ target_to_host_bitmask(arg3, fcntl_flags_tbl),
+ arg4));
+ unlock_user(p, arg2, 0);
+ fd_trans_unregister(ret);
+ return ret;
+}
+
IMPL(read)
{
abi_long ret;
@@ -8177,26 +8211,6 @@ static abi_long do_syscall1(void *cpu_env, unsigned num,
abi_long arg1,
void *p;
switch(num) {
-#ifdef TARGET_NR_open
- case TARGET_NR_open:
- if (!(p = lock_user_string(arg1)))
- return -TARGET_EFAULT;
- ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
- target_to_host_bitmask(arg2,
fcntl_flags_tbl),
- arg3));
- fd_trans_unregister(ret);
- unlock_user(p, arg1, 0);
- return ret;
-#endif
- case TARGET_NR_openat:
- if (!(p = lock_user_string(arg2)))
- return -TARGET_EFAULT;
- ret = get_errno(do_openat(cpu_env, arg1, p,
- target_to_host_bitmask(arg3,
fcntl_flags_tbl),
- arg4));
- fd_trans_unregister(ret);
- unlock_user(p, arg2, 0);
- return ret;
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
case TARGET_NR_name_to_handle_at:
ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
@@ -12477,6 +12491,10 @@ static impl_fn *syscall_table(unsigned num)
SYSCALL(close);
SYSCALL(execve);
SYSCALL(exit);
+#ifdef TARGET_NR_open
+ SYSCALL(open);
+#endif
+ SYSCALL(openat);
SYSCALL(read);
SYSCALL(write);
}
--
2.17.1
- [Qemu-devel] [PATCH v2 002/108] linux-user: Split out do_syscall1, (continued)
- [Qemu-devel] [PATCH v2 002/108] linux-user: Split out do_syscall1, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 005/108] linux-user: Propagate goto unimplemented_nowarn to return, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 006/108] linux-user: Propagate goto unimplemented to default, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 007/108] linux-user: Propagate goto fail to return, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 004/108] linux-user: Propagate goto efault to return, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 008/108] linux-user: Make syscall number unsigned, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 009/108] linux-user: Set up infrastructure for table-izing syscalls, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 010/108] linux-user: Split out brk, close, exit, read, write, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 003/108] linux-user: Relax single exit from "break", Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 011/108] linux-user: Split out execve, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 012/108] linux-user: Split out open, openat,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 013/108] linux-user: Split out name_to_handle_at, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 014/108] linux-user: Split out open_to_handle_at, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 016/108] linux-user: Split out link, linkat, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 015/108] linux-user: Split out creat, fork, waitid, waitpid, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 017/108] linux-user: Split out unlink, unlinkat, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 018/108] linux-user: Split out chdir, mknod, mknodat, time, chmod, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 019/108] linux-user: Split out getpid, getxpid, lseek, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 020/108] linux-user: Split out mount, umount, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 021/108] linux-user: Split out alarm, pause, stime, utime, utimes, Richard Henderson, 2018/06/09
- [Qemu-devel] [PATCH v2 022/108] linux-user: Split out access, faccessat, futimesat, kill, nice, sync, syncfs, Richard Henderson, 2018/06/09