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| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-24 09:21:55 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-24 09:21:55 +0000 |
| commit | 824248322670885c95213c81a20551ab2434228f (patch) | |
| tree | c69c77c4a74aca2c3583795e0d360b66eebde969 /linux-user/syscall.c | |
| parent | 8dd77cca03ac6325bda61dbdb8b8a2021fe524c3 (diff) | |
| download | qemu-824248322670885c95213c81a20551ab2434228f.zip qemu-824248322670885c95213c81a20551ab2434228f.tar.gz qemu-824248322670885c95213c81a20551ab2434228f.tar.bz2 | |
linux-user openat() syscall, by Thayne Harbaugh.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3217 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index d0b4e82..cde0dd3 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -142,6 +142,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ #define __NR_sys_getcwd1 __NR_getcwd #define __NR_sys_getdents __NR_getdents #define __NR_sys_getdents64 __NR_getdents64 +#define __NR_sys_openat __NR_openat #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo #define __NR_sys_syslog __NR_syslog #define __NR_sys_tgkill __NR_tgkill @@ -166,6 +167,9 @@ _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); #endif _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh); +#if defined(TARGET_NR_openat) && defined(__NR_openat) +_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) +#endif _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) @@ -2500,6 +2504,24 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, arg3)); unlock_user(p, arg1, 0); break; +#if defined(TARGET_NR_openat) && defined(__NR_openat) + case TARGET_NR_openat: + 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_openat(arg1, + path(p), + target_to_host_bitmask(arg3, fcntl_flags_tbl), + arg4)); + if (p) + unlock_user(p, arg2, 0); + break; +#endif case TARGET_NR_close: ret = get_errno(close(arg1)); break; |