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| author | Pratyush Anand <panand@redhat.com> | 2016-11-02 12:10:41 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-11-07 21:15:20 +0300 |
| commit | c2249707ee53b5dd696f0fae8543a754684ea04a (patch) | |
| tree | ad26181a1ad57978dcf944fa5f2959961833a9cd /arch/arm64/include/asm/probes.h | |
| parent | 1404d6f13e47c42f155e3c6a611b1bf4dd35dde9 (diff) | |
| download | linux-c2249707ee53b5dd696f0fae8543a754684ea04a.tar.xz | |
arm64: kprobe: protect/rename few definitions to be reused by uprobe
decode-insn code has to be reused by arm64 uprobe implementation as well.
Therefore, this patch protects some portion of kprobe code and renames few
other, so that decode-insn functionality can be reused by uprobe even when
CONFIG_KPROBES is not defined.
kprobe_opcode_t and struct arch_specific_insn are also defined by
linux/kprobes.h, when CONFIG_KPROBES is not defined. So, protect these
definitions in asm/probes.h.
linux/kprobes.h already includes asm/kprobes.h. Therefore, remove inclusion
of asm/kprobes.h from decode-insn.c.
There are some definitions like kprobe_insn and kprobes_handler_t etc can
be re-used by uprobe. So, it would be better to remove 'k' from their
names.
struct arch_specific_insn is specific to kprobe. Therefore, introduce a new
struct arch_probe_insn which will be common for both kprobe and uprobe, so
that decode-insn code can be shared. Modify kprobe code accordingly.
Function arm_probe_decode_insn() will be needed by uprobe as well. So make
it global.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/probes.h')
| -rw-r--r-- | arch/arm64/include/asm/probes.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/arm64/include/asm/probes.h b/arch/arm64/include/asm/probes.h index 5af574d632fa..e175a825b187 100644 --- a/arch/arm64/include/asm/probes.h +++ b/arch/arm64/include/asm/probes.h @@ -17,19 +17,22 @@ #include <asm/opcodes.h> -struct kprobe; -struct arch_specific_insn; - -typedef u32 kprobe_opcode_t; -typedef void (kprobes_handler_t) (u32 opcode, long addr, struct pt_regs *); +typedef u32 probe_opcode_t; +typedef void (probes_handler_t) (u32 opcode, long addr, struct pt_regs *); /* architecture specific copy of original instruction */ -struct arch_specific_insn { - kprobe_opcode_t *insn; +struct arch_probe_insn { + probe_opcode_t *insn; pstate_check_t *pstate_cc; - kprobes_handler_t *handler; + probes_handler_t *handler; /* restore address after step xol */ unsigned long restore; }; +#ifdef CONFIG_KPROBES +typedef u32 kprobe_opcode_t; +struct arch_specific_insn { + struct arch_probe_insn api; +}; +#endif #endif |