/usr/share/systemtap/runtime/linux/uprobes/uprobes_x86_64.h is in systemtap-common 2.3-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | #ifndef _ASM_UPROBES_H
#define _ASM_UPROBES_H
/*
* Userspace Probes (UProbes)
* include/asm-x86_64/uprobes.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) IBM Corporation, 2006
*/
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <asm/thread_info.h>
/* Normally defined in Kconfig */
#define CONFIG_URETPROBES 1
#define CONFIG_UPROBES_SSOL 1
typedef u8 uprobe_opcode_t;
#define BREAKPOINT_INSTRUCTION 0xcc
#define BP_INSN_SIZE 1
#define MAX_UINSN_BYTES 16
// SLOT_IP should be 16 for 64-bit apps (include/asm-x86_64/elf.h)
// but 12 for 32-bit apps (arch/x86_64/ia32/ia32_binfmt.c)
#define SLOT_IP(tsk) (test_tsk_thread_flag(tsk, TIF_IA32) ? 12 : 16)
#define BREAKPOINT_SIGNAL SIGTRAP
#define SSTEP_SIGNAL SIGTRAP
/* Architecture specific switch for where the IP points after a bp hit */
#define ARCH_BP_INST_PTR(inst_ptr) (inst_ptr - BP_INSN_SIZE)
#define UPFIX_RIP_RAX 0x1 /* (%rip) insn rewritten to use (%rax) */
#define UPFIX_RIP_RCX 0x2 /* (%rip) insn rewritten to use (%rcx) */
#define UPFIX_ABS_IP 0x4 /* %ip after SS needs no fixup */
#define UPFIX_RETURN 0x8 /* need to adjust return address on stack */
struct uprobe_probept_arch_info {
unsigned long flags;
unsigned long rip_target_address;
};
struct uprobe_task_arch_info {
unsigned long saved_scratch_register;
};
struct uprobe_probept;
struct uprobe_task;
static int arch_validate_probed_insn(struct uprobe_probept *ppt,
struct task_struct *tsk);
/* On x86_64, the int3 traps leaves rip pointing past the int3 instruction. */
static inline unsigned long arch_get_probept(struct pt_regs *regs)
{
return (unsigned long) (regs->rip - BP_INSN_SIZE);
}
static inline void arch_reset_ip_for_sstep(struct pt_regs *regs)
{
regs->rip -= BP_INSN_SIZE;
}
static inline void arch_restore_uret_addr(unsigned long ret_addr,
struct pt_regs *regs)
{
regs->rip = ret_addr;
}
static unsigned long arch_get_cur_sp(struct pt_regs *regs)
{
return (unsigned long)regs->rsp;
}
static unsigned long arch_hijack_uret_addr(unsigned long trampoline_addr,
struct pt_regs *regs, struct uprobe_task *utask);
static unsigned long arch_predict_sp_at_ret(struct pt_regs *regs,
struct task_struct *tsk);
#endif /* _ASM_UPROBES_H */
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