diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-03-01 09:02:26 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-01 09:02:26 +0100 |
| commit | 0871d5a66da5c41151e0896a90298b163e42f2e0 (patch) | |
| tree | 1ba71fab9016cb28bb9d18ffd62b6b744f2f761c /arch/powerpc/include/asm/kprobes.h | |
| parent | e22af0be2cf654bb225f19750c6b9aab1627dc9e (diff) | |
| parent | 2d6be4abf514fc26c83d239c7f31da1f95e4a31d (diff) | |
Merge branch 'linus' into WIP.x86/boot, to fix up conflicts and to pick up updates
Conflicts:
arch/x86/xen/setup.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/include/asm/kprobes.h')
| -rw-r--r-- | arch/powerpc/include/asm/kprobes.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index 97b8c1f83453..0503c98b2117 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -1,5 +1,8 @@ #ifndef _ASM_POWERPC_KPROBES_H #define _ASM_POWERPC_KPROBES_H + +#include <asm-generic/kprobes.h> + #ifdef __KERNEL__ /* * Kernel Probes (KProbes) @@ -29,6 +32,7 @@ #include <linux/types.h> #include <linux/ptrace.h> #include <linux/percpu.h> +#include <linux/module.h> #include <asm/probes.h> #include <asm/code-patching.h> @@ -39,7 +43,23 @@ struct pt_regs; struct kprobe; typedef ppc_opcode_t kprobe_opcode_t; -#define MAX_INSN_SIZE 1 + +extern kprobe_opcode_t optinsn_slot; + +/* Optinsn template address */ +extern kprobe_opcode_t optprobe_template_entry[]; +extern kprobe_opcode_t optprobe_template_op_address[]; +extern kprobe_opcode_t optprobe_template_call_handler[]; +extern kprobe_opcode_t optprobe_template_insn[]; +extern kprobe_opcode_t optprobe_template_call_emulate[]; +extern kprobe_opcode_t optprobe_template_ret[]; +extern kprobe_opcode_t optprobe_template_end[]; + +/* Fixed instruction size for powerpc */ +#define MAX_INSN_SIZE 1 +#define MAX_OPTIMIZED_LENGTH sizeof(kprobe_opcode_t) /* 4 bytes */ +#define MAX_OPTINSN_SIZE (optprobe_template_end - optprobe_template_entry) +#define RELATIVEJUMP_SIZE sizeof(kprobe_opcode_t) /* 4 bytes */ #ifdef PPC64_ELF_ABI_v2 /* PPC64 ABIv2 needs local entry point */ @@ -61,7 +81,7 @@ typedef ppc_opcode_t kprobe_opcode_t; #define kprobe_lookup_name(name, addr) \ { \ char dot_name[MODULE_NAME_LEN + 1 + KSYM_NAME_LEN]; \ - char *modsym; \ + const char *modsym; \ bool dot_appended = false; \ if ((modsym = strchr(name, ':')) != NULL) { \ modsym++; \ @@ -125,6 +145,12 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe; }; +struct arch_optimized_insn { + kprobe_opcode_t copied_insn[1]; + /* detour buffer */ + kprobe_opcode_t *insn; +}; + extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); |