target-alpha: implement getxuid and getxgid syscalls

This patch implemented the setxuid and setxgid syscalls for Alpha.
These syscalls return two values, both uid/euid and gid/egid.
In addition to returning the first value in $v0, the additional
value is returned in the $a4 register.

The syscalls are used instead of the separate syscalls for those values
used on other architectures (this is probably because Alpha Linux started
out syscall compatible with DEC/OSF/Tru64).

With this patch, the perlbmk benchmarks from Spec2000 run properly.

(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5722 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-11-14 17:20:15 +00:00
parent 71f75756c9
commit 64b4d28c38

View File

@ -5533,6 +5533,30 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
ret = get_errno(getuid());
break;
#endif
#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
/* Alpha specific */
case TARGET_NR_getxuid:
{
uid_t euid;
euid=geteuid();
((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
}
ret = get_errno(getuid());
break;
#endif
#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
/* Alpha specific */
case TARGET_NR_getxgid:
{
uid_t egid;
egid=getegid();
((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
}
ret = get_errno(getgid());
break;
#endif
#ifdef TARGET_NR_getgid32
case TARGET_NR_getgid32:
ret = get_errno(getgid());