[uClibc] Some problems with _syscall5

[Matt Bosworth]

Stanley --

> 
> There exists some errors in compiling mount, it shows the following =
> error. I can't solve it because i don;t seem to understand what it is
> =
> trying to tell.

I ran into this problem as well.  It seems to be an issue with in
uClinux/include/asm-sparcnommu/unistd.h
I cut the _syscall5 definition out of linux-2.4.2 and pasted it in
there
instead, and that seemed to solve everything. . .  at least, it 
compiled :) 

Here's the new definition for syscall (to save you a little trouble)

#define
_syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
          type5,arg5) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
register long __o3 __asm__ ("o3") = (long)(arg4); \
register long __o4 __asm__ ("o4") = (long)(arg5); \
__asm__ __volatile__ ("t 0x10\n\t" \
                      "bcc 1f\n\t" \
                      "mov %%o0, %0\n\t" \
                      "sub %%g0, %%o0, %0\n\t" \
                      "1:\n\t" \
                      : "=r" (__res), "=&r" (__o0) \
                      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3),
"r" (__o4), "r" (__g1) \
                      : "cc"); \
if (__res < -255 || __res>=0) \
        return (type) __res; \
errno = -__res; \
return -1; \
}


Hope that helps!

-Matt

__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail - only $35 
a year!  http://personal.mail.yahoo.com/