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linux-user mknodat() syscall, by Thayne Harbaugh. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3219 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-09-24 09:23:05 +00:00
parent 4472ad0dbd
commit 75ac37a09b
1 changed files with 20 additions and 0 deletions
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20
linux-user/syscall.c
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@ -143,6 +143,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
#define __NR_sys_getdents __NR_getdents
#define __NR_sys_getdents64 __NR_getdents64
#define __NR_sys_mkdirat __NR_mkdirat
#define __NR_sys_mknodat __NR_mknodat
#define __NR_sys_openat __NR_openat
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
@ -171,6 +172,10 @@ _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
#endif
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
mode_t,mode,dev_t,dev)
#endif
#if defined(TARGET_NR_openat) && defined(__NR_openat)
_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
#endif
@ -2643,6 +2648,21 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = get_errno(mknod(p, arg2, arg3));
unlock_user(p, arg1, 0);
break;
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
case TARGET_NR_mknodat:
if (!arg2) {
ret = -EFAULT;
goto fail;
}
p = lock_user_string(arg2);
if (!access_ok(VERIFY_READ, p, 1))
ret = -EFAULT;
else
ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
if (p)
unlock_user(p, arg2, 0);
break;
#endif
case TARGET_NR_chmod:
p = lock_user_string(arg1);
ret = get_errno(chmod(p, arg2));