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|
# 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
|
