sim/testsuite/bpf/jmp.s

   1 # mach: bpf
   2 # output: pass\nexit 0 (0x0)\n
   3 /* jmp.s
   4    Tests for eBPF JMP instructions in simulator  */
   5
   6     .include "testutils.inc"
   7
   8     .text
   9     .global main
  10     .type main, @function
  11 main:
  12     mov         %r1, 5
  13     mov         %r2, 2
  14     mov         %r3, 7
  15     mov         %r4, -1
  16
  17     /* ja - jump absolute (unconditional)  */
  18     ja          2f
  19 1:  fail
  20
  21 2:  /* jeq - jump eq  */
  22     jeq         %r1, 4, 1b      /* no  */
  23     jeq         %r1, %r2, 1b    /* no  */
  24     jeq         %r1, 5, 2f      /* yes */
  25     fail
  26 2:  jeq         %r1, %r1, 2f    /* yes  */
  27     fail
  28
  29 2:  /* jgt - jump (unsigned) greater-than  */
  30     jgt         %r1, 6, 1b      /* no  */
  31     jgt         %r1, -5, 1b     /* no - unsigned  */
  32     jgt         %r1, %r4, 1b    /* no - unsigned  */
  33     jgt         %r1, 4, 2f      /* yes  */
  34     fail
  35 2:  jgt         %r1, %r2, 2f    /* yes  */
  36     fail
  37
  38 2:  /* jge - jump (unsigned) greater-than-or-equal-to  */
  39     jge         %r1, 6, 1b      /* no  */
  40     jge         %r1, 5, 2f      /* yes  */
  41     fail
  42 2:  jge         %r1, %r3, 1b    /* no  */
  43     jge         %r1, -5, 1b     /* no - unsigned  */
  44     jge         %r1, %r2, 2f    /* yes  */
  45     fail
  46
  47 2:  /* jlt - jump (unsigned) less-than  */
  48     jlt         %r1, 5, 1b      /* no  */
  49     jlt         %r1, %r2, 1b    /* no  */
  50     jlt         %r4, %r1, 1b    /* no - unsigned  */
  51     jlt         %r1, 6, 2f      /* yes  */
  52     fail
  53 2:
  54     jlt         %r1, %r3, 2f    /* yes  */
  55     fail
  56
  57 2:  /* jle - jump (unsigned) less-than-or-equal-to  */
  58     jle         %r1, 4, 1b      /* no  */
  59     jle         %r1, %r2, 1b    /* no  */
  60     jle         %r4, %r1, 1b    /* no  */
  61     jle         %r1, 5, 2f      /* yes  */
  62     fail
  63 2:  jle         %r1, %r1, 2f    /* yes  */
  64     fail
  65
  66 2:  /* jset - jump "test" (AND)  */
  67     jset        %r1, 2, 1b      /* no (5 & 2 = 0)  */
  68     jset        %r1, %r2, 1b    /* no (same)  */
  69     jset        %r1, 4, 2f      /* yes (5 & 4 != 0)  */
  70     fail
  71
  72 2:  /* jne  - jump not-equal-to  */
  73     jne         %r1, 5, 1b      /* no  */
  74     jne         %r1, %r1, 1b    /* no  */
  75     jne         %r1, 6, 2f      /* yes  */
  76     fail
  77 2:  jne         %r1, %r4, 2f    /* yes  */
  78     fail
  79
  80 2:  /* jsgt - jump (signed) greater-than  */
  81     jsgt        %r1, %r3, 1b    /* no  */
  82     jsgt        %r1, %r1, 1b    /* no  */
  83     jsgt        %r1, 5, 1b      /* no  */
  84     jsgt        %r1, -4, 2f     /* yes  */
  85     fail
  86 2:  jsgt        %r1, %r4, 2f    /* yes  */
  87     fail
  88
  89 2:  /* jsge - jump (signed) greater-than-or-equal-to  */
  90     jsge        %r1, %r3, 1b    /* no  */
  91     jsge        %r1, %r1, 2f    /* yes  */
  92     fail
  93 2:  jsge        %r1, 7, 1b      /* no  */
  94     jsge        %r1, -4, 2f     /* yes */
  95     fail
  96 2:  jsge        %r1, %r4, 2f    /* yes  */
  97     fail
  98
  99 2:  /* jslt - jump (signed) less-than  */
 100     jslt        %r1, 5, 1b      /* no  */
 101     jslt        %r1, %r2, 1b    /* no  */
 102     jslt        %r4, %r1, 2f    /* yes  */
 103     fail
 104 2:  jslt        %r1, 6, 2f      /* yes  */
 105     fail
 106 2:  jslt        %r1, %r3, 2f    /* yes  */
 107     fail
 108
 109 2:  /* jsle - jump (signed) less-than-or-equal-to  */
 110     jsle         %r1, 4, 1b      /* no  */
 111     jsle         %r1, %r2, 1b    /* no  */
 112     jsle         %r4, %r1, 2f    /* yes  */
 113     fail
 114 2:  jsle         %r1, 5, 2f      /* yes  */
 115     fail
 116 2:  jsle         %r1, %r3, 2f    /* yes  */
 117     fail
 118
 119 2:
 120     pass