^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef __X86_KERNEL_KPROBES_COMMON_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define __X86_KERNEL_KPROBES_COMMON_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) /* Kprobes and Optprobes common header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <asm/asm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <asm/frame.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define SAVE_REGS_STRING \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* Skip cs, ip, orig_ax. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) " subq $24, %rsp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) " pushq %rdi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) " pushq %rsi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) " pushq %rdx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) " pushq %rcx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) " pushq %rax\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) " pushq %r8\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) " pushq %r9\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) " pushq %r10\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) " pushq %r11\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) " pushq %rbx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) " pushq %rbp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) " pushq %r12\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) " pushq %r13\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) " pushq %r14\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) " pushq %r15\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ENCODE_FRAME_POINTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define RESTORE_REGS_STRING \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) " popq %r15\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) " popq %r14\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) " popq %r13\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) " popq %r12\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) " popq %rbp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) " popq %rbx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) " popq %r11\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) " popq %r10\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) " popq %r9\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) " popq %r8\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) " popq %rax\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) " popq %rcx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) " popq %rdx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) " popq %rsi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) " popq %rdi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* Skip orig_ax, ip, cs */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) " addq $24, %rsp\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define SAVE_REGS_STRING \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /* Skip cs, ip, orig_ax and gs. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) " subl $4*4, %esp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) " pushl %fs\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) " pushl %es\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) " pushl %ds\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) " pushl %eax\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) " pushl %ebp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) " pushl %edi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) " pushl %esi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) " pushl %edx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) " pushl %ecx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) " pushl %ebx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) ENCODE_FRAME_POINTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define RESTORE_REGS_STRING \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) " popl %ebx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) " popl %ecx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) " popl %edx\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) " popl %esi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) " popl %edi\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) " popl %ebp\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) " popl %eax\n" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* Skip ds, es, fs, gs, orig_ax, ip, and cs. */\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) " addl $7*4, %esp\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* Ensure if the instruction can be boostable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) extern int can_boost(struct insn *insn, void *orig_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* Recover instruction if given address is probed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) extern unsigned long recover_probed_instruction(kprobe_opcode_t *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned long addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Copy an instruction and adjust the displacement if the instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * uses the %rip-relative addressing mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) extern int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /* Generate a relative-jump/call instruction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) extern void synthesize_reljump(void *dest, void *from, void *to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) extern void synthesize_relcall(void *dest, void *from, void *to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #ifdef CONFIG_OPTPROBES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) extern int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) extern unsigned long __recover_optprobed_insn(kprobe_opcode_t *buf, unsigned long addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #else /* !CONFIG_OPTPROBES */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static inline int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static inline unsigned long __recover_optprobed_insn(kprobe_opcode_t *buf, unsigned long addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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