PAL.C.T MINI SHELL
#ifndef _ASM_X86_FTRACE_H
#define _ASM_X86_FTRACE_H
#ifdef __ASSEMBLY__
.macro MCOUNT_SAVE_FRAME
/* taken from glibc */
subq $0x38, %rsp
movq %rax, (%rsp)
movq %rcx, 8(%rsp)
movq %rdx, 16(%rsp)
movq %rsi, 24(%rsp)
movq %rdi, 32(%rsp)
movq %r8, 40(%rsp)
movq %r9, 48(%rsp)
.endm
.macro MCOUNT_RESTORE_FRAME
movq 48(%rsp), %r9
movq 40(%rsp), %r8
movq 32(%rsp), %rdi
movq 24(%rsp), %rsi
movq 16(%rsp), %rdx
movq 8(%rsp), %rcx
movq (%rsp), %rax
addq $0x38, %rsp
.endm
#endif
#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((long)(mcount))
#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
#ifndef __ASSEMBLY__
extern void mcount(void);
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
/*
* call mcount is "e8 <4 byte offset>"
* The addr points to the 4 byte offset and the caller of this
* function wants the pointer to e8. Simply subtract one.
*/
return addr - 1;
}
#ifdef CONFIG_DYNAMIC_FTRACE
struct dyn_arch_ftrace {
/* No extra data needed for x86 */
};
#endif /* CONFIG_DYNAMIC_FTRACE */
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_FUNCTION_TRACER */
#if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
/*
* Because ia32 syscalls do not map to x86_64 syscall numbers
* this screws up the trace output when tracing a ia32 task.
* Instead of reporting bogus syscalls, just do not trace them.
*
* If the user realy wants these, then they should use the
* raw syscall tracepoints with filtering.
*/
#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1
extern bool arch_trace_is_compat_syscall(struct pt_regs *regs);
#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */
#endif /* !__ASSEMBLY__ && !COMPILE_OFFSETS */
#endif /* _ASM_X86_FTRACE_H */
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