arch/m68k/include/uapi/asm/ptrace.h

Source file repositories/reference/linux-study-clean/arch/m68k/include/uapi/asm/ptrace.h

File Facts

System
Linux kernel
Corpus path
arch/m68k/include/uapi/asm/ptrace.h
Extension
.h
Size
1916 bytes
Lines
86
Domain
Architecture Layer
Bucket
arch/m68k
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pt_regs {
  long     d1;
  long     d2;
  long     d3;
  long     d4;
  long     d5;
  long     a0;
  long     a1;
  long     a2;
  long     d0;
  long     orig_d0;
  long     stkadj;
#ifdef __mcoldfire__
  unsigned format :  4; /* frame format specifier */
  unsigned vector : 12; /* vector offset */
  unsigned short sr;
  unsigned long  pc;
#else
  unsigned short sr;
  unsigned long  pc;
  unsigned format :  4; /* frame format specifier */
  unsigned vector : 12; /* vector offset */
#endif
};

/*
 * This is the extended stack used by signal handlers and the context
 * switcher: it's pushed after the normal "struct pt_regs".
 */
struct switch_stack {
	unsigned long  d6;
	unsigned long  d7;
	unsigned long  a3;
	unsigned long  a4;
	unsigned long  a5;
	unsigned long  a6;
	unsigned long  retpc;
};

/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS            12
#define PTRACE_SETREGS            13
#define PTRACE_GETFPREGS          14
#define PTRACE_SETFPREGS          15

#define PTRACE_GET_THREAD_AREA    25

#define PTRACE_GETFDPIC	31

#define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */

#define PTRACE_GETFDPIC_EXEC	0
#define PTRACE_GETFDPIC_INTERP	1

#endif /* __ASSEMBLER__ */
#endif /* _UAPI_M68K_PTRACE_H */

Annotation

Implementation Notes