tests/check_ppc64_auxv_cap

   1 #!/bin/sh
   2
   3 # Check if the passed in (CAPABILITY_WORD) matches a value found in the
   4 # current hwcap aux vector.
   5
   6 # return '0' to indicate the capability was found.
   7 # return '1' for not found, or any other error condition.
   8
   9 CAPABILITY_WORD=$1
  10
  11 # SANITY CHECK Begin:
  12 # These are potential hwcap values as found in the glibc dl-procinfo.c
  13 # sources as of July 2015.
  14 P_HWCAP_1=" vsx arch_2_06 power6x dfp pa6t arch_2_05 ic_snoop smt booke"
  15 P_HWCAP_2=" cellbe power5+ power5 power4 notb efpdouble efpsingle spe"
  16 P_HWCAP_3=" ucache 4xxmac mmu fpu altivec ppc601 ppc64 ppc32 "
  17 P_HWCAP2_1=" tar isel ebb dscr htm arch_2_07 arch_3_00 "
  18 CAPABILITY_FOUND="no"
  19 for POTENTIAL_CAP in $P_HWCAP_1 $P_HWCAP_2 $P_HWCAP_3 $P_HWCAP2_1 ; do
  20         if [ "x$CAPABILITY_WORD" = "x$POTENTIAL_CAP" ]; then
  21                 CAPABILITY_FOUND="yes"
  22                 break
  23         fi
  24 done
  25 if [ x$CAPABILITY_FOUND = "xno" ]; then
  26         echo "Warning: did not find $CAPABILITY_WORD in the potential capabilities list."
  27         echo "         LD_SHOW_AUXV=1 /bin/true | grep ^AT_HWCAP "
  28         echo "         Double-check that the input value [$CAPABILITY_WORD] is valid."
  29 fi
  30 # SANITY CHECK End
  31
  32 # Capability Check Begin:
  33 LD_SHOW_AUXV=1 /bin/true | grep ^AT_HWCAP | grep -w $CAPABILITY_WORD 2>&1 > /dev/null
  34 if [ "$?" -eq "0" ]; then
  35         #echo "found the capability"
  36         exit 0
  37 elif [ "$?" -eq "2" ]; then
  38         # echo "grep failure"
  39         exit 1
  40 else
  41         #echo "did not find the capability"
  42         exit 1
  43 fi
  44