55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
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/*
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* Tracing hooks, x86-64 CPU support
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*/
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#ifndef _ASM_TRACEHOOK_H
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#define _ASM_TRACEHOOK_H 1
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#include <linux/sched.h>
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#include <asm/ptrace.h>
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#include <asm/proto.h>
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/*
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* See linux/tracehook.h for the descriptions of what these need to do.
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*/
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#define ARCH_HAS_SINGLE_STEP (1)
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/* These two are defined in arch/x86_64/kernel/ptrace.c. */
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void tracehook_enable_single_step(struct task_struct *tsk);
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void tracehook_disable_single_step(struct task_struct *tsk);
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static inline int tracehook_single_step_enabled(struct task_struct *tsk)
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{
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return test_tsk_thread_flag(tsk, TIF_SINGLESTEP);
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}
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static inline void tracehook_enable_syscall_trace(struct task_struct *tsk)
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{
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set_tsk_thread_flag(tsk, TIF_SYSCALL_TRACE);
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}
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static inline void tracehook_disable_syscall_trace(struct task_struct *tsk)
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{
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clear_tsk_thread_flag(tsk, TIF_SYSCALL_TRACE);
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}
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static inline void tracehook_abort_syscall(struct pt_regs *regs)
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{
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regs->orig_rax = -1L;
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}
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extern const struct utrace_regset_view utrace_x86_64_native, utrace_ia32_view;
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static inline const struct utrace_regset_view *
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utrace_native_view(struct task_struct *tsk)
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{
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#ifdef CONFIG_IA32_EMULATION
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if (test_tsk_thread_flag(tsk, TIF_IA32))
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return &utrace_ia32_view;
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#endif
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return &utrace_x86_64_native;
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}
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#endif
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