diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/test_bpf.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c index 2eb1d0e4aff3..2aa1d0d3c685 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -10709,6 +10709,235 @@ static struct bpf_test tests[] = { .fill_helper = bpf_fill_jmp32_jsle_reg, .nr_testruns = NR_PATTERN_RUNS, }, + /* Conditional jumps with constant decision */ + { + "JMP_JSET_K: imm = 0 -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_IMM(BPF_JSET, R1, 0, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JLT_K: imm = 0 -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_IMM(BPF_JLT, R1, 0, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JGE_K: imm = 0 -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_IMM(BPF_JGE, R1, 0, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JGT_K: imm = 0xffffffff -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_IMM(BPF_JGT, R1, U32_MAX, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JLE_K: imm = 0xffffffff -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_IMM(BPF_JLE, R1, U32_MAX, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP32_JSGT_K: imm = 0x7fffffff -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP32_IMM(BPF_JSGT, R1, S32_MAX, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP32_JSGE_K: imm = -0x80000000 -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP32_IMM(BPF_JSGE, R1, S32_MIN, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP32_JSLT_K: imm = -0x80000000 -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP32_IMM(BPF_JSLT, R1, S32_MIN, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP32_JSLE_K: imm = 0x7fffffff -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP32_IMM(BPF_JSLE, R1, S32_MAX, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JEQ_X: dst = src -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JEQ, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JGE_X: dst = src -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JGE, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JLE_X: dst = src -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JLE, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSGE_X: dst = src -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JSGE, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JSLE_X: dst = src -> always taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JSLE, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 1 } }, + }, + { + "JMP_JNE_X: dst = src -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JNE, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JGT_X: dst = src -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JGT, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JLT_X: dst = src -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JLT, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JSGT_X: dst = src -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JSGT, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, + { + "JMP_JSLT_X: dst = src -> never taken", + .u.insns_int = { + BPF_ALU64_IMM(BPF_MOV, R0, 1), + BPF_JMP_REG(BPF_JSLT, R1, R1, 1), + BPF_ALU64_IMM(BPF_MOV, R0, 0), + BPF_EXIT_INSN(), + }, + INTERNAL | FLAG_NO_DATA, + { }, + { { 0, 0 } }, + }, /* Short relative jumps */ { "Short relative jump: offset=0", |