# mach: bpf # output: pass\nexit 0 (0x0)\n ;;; jmp.s ;;; Tests for eBPF JMP instructions in simulator .include "testutils.inc" .text .global main .type main, @function main: mov %r1, 5 mov %r2, 2 mov %r3, 7 mov %r4, -1 ;; ja - jump absolute (unconditional) ja 2f 1: fail 2: ;; jeq - jump eq jeq %r1, 4, 1b ; no jeq %r1, %r2, 1b ; no jeq %r1, 5, 2f ; yes fail 2: jeq %r1, %r1, 2f ; yes fail 2: ;; jgt - jump (unsigned) greater-than jgt %r1, 6, 1b ; no jgt %r1, -5, 1b ; no - unsigned jgt %r1, %r4, 1b ; no - unsigned jgt %r1, 4, 2f ; yes fail 2: jgt %r1, %r2, 2f ; yes fail 2: ;; jge - jump (unsigned) greater-than-or-equal-to jge %r1, 6, 1b ; no jge %r1, 5, 2f ; yes fail 2: jge %r1, %r3, 1b ; no jge %r1, -5, 1b ; no - unsigned jge %r1, %r2, 2f ; yes fail 2: ;; jlt - jump (unsigned) less-than jlt %r1, 5, 1b ; no jlt %r1, %r2, 1b ; no jlt %r4, %r1, 1b ; no - unsigned jlt %r1, 6, 2f ; yes fail 2: jlt %r1, %r3, 2f ; yes fail 2: ;; jle - jump (unsigned) less-than-or-equal-to jle %r1, 4, 1b ; no jle %r1, %r2, 1b ; no jle %r4, %r1, 1b ; no jle %r1, 5, 2f ; yes fail 2: jle %r1, %r1, 2f ; yes fail 2: ;; jset - jump "test" (AND) jset %r1, 2, 1b ; no (5 & 2 = 0) jset %r1, %r2, 1b ; no (same) jset %r1, 4, 2f ; yes (5 & 4 != 0) fail 2: ;; jne - jump not-equal-to jne %r1, 5, 1b ; no jne %r1, %r1, 1b ; no jne %r1, 6, 2f ; yes fail 2: jne %r1, %r4, 2f ; yes fail 2: ;; jsgt - jump (signed) greater-than jsgt %r1, %r3, 1b ; no jsgt %r1, %r1, 1b ; no jsgt %r1, 5, 1b ; no jsgt %r1, -4, 2f ; yes fail 2: jsgt %r1, %r4, 2f ; yes fail 2: ;; jsge - jump (signed) greater-than-or-equal-to jsge %r1, %r3, 1b ; no jsge %r1, %r1, 2f ; yes fail 2: jsge %r1, 7, 1b ; no jsge %r1, -4, 2f ; yes fail 2: jsge %r1, %r4, 2f ; yes fail 2: ;; jslt - jump (signed) less-than jslt %r1, 5, 1b ; no jslt %r1, %r2, 1b ; no jslt %r4, %r1, 2f ; yes fail 2: jslt %r1, 6, 2f ; yes fail 2: jslt %r1, %r3, 2f ; yes fail 2: ;; jsle - jump (signed) less-than-or-equal-to jsle %r1, 4, 1b ; no jsle %r1, %r2, 1b ; no jsle %r4, %r1, 2f ; yes fail 2: jsle %r1, 5, 2f ; yes fail 2: jsle %r1, %r3, 2f ; yes fail 2: pass