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authorRiku Voipio <riku.voipio@linaro.org>2012-10-12 17:07:13 +0300
committerRiku Voipio <riku.voipio@linaro.org>2012-10-12 13:56:29 +0300
commitda1bf089bd9de8c63318393a429e2120e28be707 (patch)
tree22c3dc53e50042555e5251cd4aca6875f091344c
parentb5df9dbb1cefc0f5542e86b2045b154a1fcd3002 (diff)
downloadqemu-linux-user-refactor.tar.gz
linux-user: do_openat wrapper addedlinux-user-refactor
In preparations for for refactoring the main switch/case out Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
-rw-r--r--linux-user/syscall.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index eebf21908f..61030f2c11 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5092,6 +5092,19 @@ cleanup:
unlock_user(pathname, arg1, 0);
return ret;
}
+
+static int do_openat(void *cpu_env, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4)
+{
+ void *p;
+ int ret;
+ if (!(p = lock_user_string(arg2)))
+ return -EFAULT;
+ ret = sys_openat(arg1, path(p),
+ target_to_host_bitmask(arg3, fcntl_flags_tbl), arg4);
+ unlock_user(p, arg2, 0);
+ return ret;
+}
+
static void do_exit(void *, abi_long) __attribute__ ((noreturn));
static void do_exit(void *cpu_env, abi_long arg1)
{
@@ -5199,13 +5212,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#if defined(TARGET_NR_openat) && defined(__NR_openat)
case TARGET_NR_openat:
- if (!(p = lock_user_string(arg2)))
- goto efault;
- ret = get_errno(sys_openat(arg1,
- path(p),
- target_to_host_bitmask(arg3, fcntl_flags_tbl),
- arg4));
- unlock_user(p, arg2, 0);
+ ret = get_errno(do_openat(cpu_env, arg1, arg2, arg3, arg4));
break;
#endif
case TARGET_NR_close: