Commit 9bc499be authored by Ilya Leoshkevich's avatar Ilya Leoshkevich Committed by Daniel Borkmann
Browse files

bpf, selftests: Use bpf_probe_read_kernel 



Since commit 0ebeea8c ("bpf: Restrict bpf_probe_read{, str}() only to
archs where they work") 44 verifier tests fail on s390 due to not having
bpf_probe_read anymore. Fix by using bpf_probe_read_kernel.

Signed-off-by: default avatarIlya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200602174448.2501214-1-iii@linux.ibm.com
parent 33d21f18

tools/testing/selftests/bpf/verifier/const_or.c

+4 −4
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2, 34),

	BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,
@@ -20,7 +20,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2, 34),

	BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.errstr = "invalid stack type R1 off=-48 access_size=58",
@@ -36,7 +36,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 13),

	BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,
@@ -51,7 +51,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 24),

	BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.errstr = "invalid stack type R1 off=-48 access_size=58",

tools/testing/selftests/bpf/verifier/helper_access_var_len.c

+22 −22
Original line number Diff line number Diff line
@@ -19,7 +19,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -36,7 +36,7 @@ 
	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),

	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.errstr = "invalid indirect read from stack off -64+0 size 64",
@@ -55,7 +55,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -84,7 +84,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -112,7 +112,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -132,7 +132,7 @@ 
	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -152,7 +152,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -171,7 +171,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -190,7 +190,7 @@ 
	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),

	BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -208,7 +208,7 @@ 
	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),

	BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -233,7 +233,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -259,7 +259,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -286,7 +286,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -313,7 +313,7 @@ 
	BPF_MOV64_IMM(BPF_REG_4, 0),

	BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},
@@ -468,7 +468,7 @@ 
	BPF_MOV64_IMM(BPF_REG_1, 0),

	BPF_MOV64_IMM(BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.errstr = "R1 type=inv expected=fp",
@@ -481,7 +481,7 @@ 
	BPF_MOV64_IMM(BPF_REG_1, 0),

	BPF_MOV64_IMM(BPF_REG_2, 1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.errstr = "R1 type=inv expected=fp",
@@ -495,7 +495,7 @@ 
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),

	BPF_MOV64_IMM(BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,
@@ -513,7 +513,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),

	BPF_MOV64_IMM(BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_8b = { 3 },
@@ -534,7 +534,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_8b = { 3 },
@@ -554,7 +554,7 @@ 
	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),

	BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 2),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_8b = { 3 },
@@ -580,7 +580,7 @@ 
	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),

	BPF_EXIT_INSN(),

	},
@@ -607,7 +607,7 @@ 
	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),

	BPF_EXIT_INSN(),

	},

tools/testing/selftests/bpf/verifier/helper_value_access.c

+18 −18
Original line number Diff line number Diff line
@@ -10,7 +10,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),

	BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -29,7 +29,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),

	BPF_MOV64_IMM(BPF_REG_2, 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -67,7 +67,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),

	BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -87,7 +87,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),

	BPF_MOV64_IMM(BPF_REG_2, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -109,7 +109,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2,

		      sizeof(struct test_val) -	offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -129,7 +129,7 @@ 
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_2, 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -170,7 +170,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2,

		      sizeof(struct test_val) - offsetof(struct test_val, foo) + 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -191,7 +191,7 @@ 
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_2, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -212,7 +212,7 @@ 
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_2, -1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -235,7 +235,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2,

		      sizeof(struct test_val) - offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -256,7 +256,7 @@ 
	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),

	BPF_MOV64_IMM(BPF_REG_2, 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -300,7 +300,7 @@ 
		      sizeof(struct test_val) -

		      offsetof(struct test_val, foo) + 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -322,7 +322,7 @@ 
	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),

	BPF_MOV64_IMM(BPF_REG_2, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -344,7 +344,7 @@ 
	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),

	BPF_MOV64_IMM(BPF_REG_2, -1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -368,7 +368,7 @@ 
	BPF_MOV64_IMM(BPF_REG_2,

		      sizeof(struct test_val) - offsetof(struct test_val, foo)),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -390,7 +390,7 @@ 
	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),

	BPF_MOV64_IMM(BPF_REG_2, 8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -433,7 +433,7 @@ 
	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),

	BPF_MOV64_IMM(BPF_REG_2, 1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },
@@ -458,7 +458,7 @@ 
		      sizeof(struct test_val) -

		      offsetof(struct test_val, foo) + 1),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.fixup_map_hash_48b = { 3 },

tools/testing/selftests/bpf/verifier/precise.c

+4 −4
Original line number Diff line number Diff line
@@ -31,14 +31,14 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.prog_type = BPF_PROG_TYPE_TRACEPOINT,

	.fixup_map_array_48b = { 1 },

	.result = VERBOSE_ACCEPT,

	.errstr =

	"26: (85) call bpf_probe_read#4\

	"26: (85) call bpf_probe_read_kernel#113\

	last_idx 26 first_idx 20\

	regs=4 stack=0 before 25\

	regs=4 stack=0 before 24\
@@ -91,7 +91,7 @@ 
	BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),

	BPF_MOV64_IMM(BPF_REG_3, 0),

	BPF_EMIT_CALL(BPF_FUNC_probe_read),

	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),

	BPF_EXIT_INSN(),

	},

	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
@@ -99,7 +99,7 @@ 
	.result = VERBOSE_ACCEPT,

	.flags = BPF_F_TEST_STATE_FREQ,

	.errstr =

	"26: (85) call bpf_probe_read#4\

	"26: (85) call bpf_probe_read_kernel#113\

	last_idx 26 first_idx 22\

	regs=4 stack=0 before 25\

	regs=4 stack=0 before 24\

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