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d340d28a96
Add a few testcases to make sure that it's not possible to place a kprobe in the mid of an instruction on s390. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
45 lines
972 B
ArmAsm
45 lines
972 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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#include <linux/linkage.h>
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#include <asm/ftrace.h>
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#define KPROBES_TARGET_START(name) \
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SYM_FUNC_START(name); \
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FTRACE_GEN_NOP_ASM(name)
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#define KPROBES_TARGET_END(name) \
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SYM_FUNC_END(name); \
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SYM_DATA(name##_offs, .quad 1b - name)
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KPROBES_TARGET_START(kprobes_target_in_insn4)
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.word 0x4700 // bc 0,0
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1: .word 0x0000
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br %r14
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KPROBES_TARGET_END(kprobes_target_in_insn4)
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KPROBES_TARGET_START(kprobes_target_in_insn6_lo)
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.word 0xe310 // ly 1,0
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1: .word 0x0000
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.word 0x0058
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br %r14
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KPROBES_TARGET_END(kprobes_target_in_insn6_lo)
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KPROBES_TARGET_START(kprobes_target_in_insn6_hi)
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.word 0xe310 // ly 1,0
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.word 0x0000
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1: .word 0x0058
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br %r14
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KPROBES_TARGET_END(kprobes_target_in_insn6_hi)
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KPROBES_TARGET_START(kprobes_target_bp)
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nop
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.word 0x0000
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nop
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1: br %r14
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KPROBES_TARGET_END(kprobes_target_bp)
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KPROBES_TARGET_START(kprobes_target_odd)
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.byte 0x07
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1: .byte 0x07
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br %r14
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KPROBES_TARGET_END(kprobes_target_odd)
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