Re: Same syscall is defined to different numbers on 3 different archs(was Re: Makefile issue)

[David Mosberger <davidm@napali.hpl.hp.com>]

>>>>> On Mon, 7 Apr 2003 11:26:49 -0500, "Robert Williamson" <robbiew@us.ibm.com> said:

  Robert> Hmmm...so I guess the only viable solution for a single test
  Robert> to cover as many archs as possible, is to explicitly define
  Robert> the number for each arch.

  Robert> Here's how I would do it Aniruddha:
  Robert> ------------------------------------------
  Robert> #ifdef __i386__
  Robert> #define __NR_timer_create 259
  Robert> #endif

  Robert> #ifdef __x86_64__
  Robert> #define __NR_timer_create 222
  Robert> #endif

  Robert> #if defined(__ppc__) || defined(__ppc64__)
  Robert> #define __NR_timer_create 240
  Robert> #else /* Not defined on this architecture */

  Robert> #include "test.h"
  Robert> #include "usctest.h"

  Robert> int TST_TOTAL = 0;      /* Total number of testcases */

  Robert> int main()
  Robert> {
  Robert> tst_resm(TCONF,"This system call is not defined for this architecture.");
  Robert> tst_exit();
  Robert> /* NOT REACHED */
  Robert> return(0);
  Robert> }
  Robert> #endif /* Not defined on this architecture */

  Robert> <REST OF TEST HERE>
  Robert> ------------------------------------------

  Robert> Any comments???

Why use such ugly, platform-dependent code when syscall(3) will do it
just fine?  (AFAIK, there is no man-page for syscall(3), but the glibc
info manual documents it in detail.)

	--david