patch-2.4.19 linux-2.4.19/include/asm-ppc64/ptrace.h

• Lines: 147
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-ppc64/ptrace.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-ppc64/ptrace.h linux-2.4.19/include/asm-ppc64/ptrace.h
@@ -0,0 +1,146 @@
+#ifndef _PPC64_PTRACE_H
+#define _PPC64_PTRACE_H
+
+/*
+ * Copyright (C) 2001 PPC64 Team, IBM Corp
+ *
+ * This struct defines the way the registers are stored on the
+ * kernel stack during a system call or other kernel entry.
+ *
+ * this should only contain volatile regs
+ * since we can keep non-volatile in the thread_struct
+ * should set this up when only volatiles are saved
+ * by intr code.
+ *
+ * Since this is going on the stack, *CARE MUST BE TAKEN* to insure
+ * that the overall structure is a multiple of 16 bytes in length.
+ *
+ * Note that the offsets of the fields in this struct correspond with
+ * the PT_* values below.  This simplifies arch/ppc/kernel/ptrace.c.
+ *
+ * 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.
+ */
+
+#define INIT_TASK_SIZE			4*PAGE_SIZE
+
+#ifndef __ASSEMBLY__
+#define PPC_REG unsigned long
+struct pt_regs {
+	PPC_REG gpr[32];
+	PPC_REG nip;
+	PPC_REG msr;
+	PPC_REG orig_gpr3;	/* Used for restarting system calls */
+	PPC_REG ctr;
+	PPC_REG link;
+	PPC_REG xer;
+	PPC_REG ccr;
+	PPC_REG softe;		/* Soft enabled/disabled */
+	PPC_REG trap;		/* Reason for being here */
+	PPC_REG dar;		/* Fault registers */
+	PPC_REG dsisr;
+	PPC_REG result; 	/* Result of a system call */
+};
+
+#define PPC_REG_32 unsigned int
+struct pt_regs32 {
+	PPC_REG_32 gpr[32];
+	PPC_REG_32 nip;
+	PPC_REG_32 msr;
+	PPC_REG_32 orig_gpr3;	/* Used for restarting system calls */
+	PPC_REG_32 ctr;
+	PPC_REG_32 link;
+	PPC_REG_32 xer;
+	PPC_REG_32 ccr;
+	PPC_REG_32 mq;		/* 601 only (not used at present) */
+				/* Used on APUS to hold IPL value. */
+	PPC_REG_32 trap;		/* Reason for being here */
+	PPC_REG_32 dar;		/* Fault registers */
+	PPC_REG_32 dsisr;
+	PPC_REG_32 result; 	/* Result of a system call */
+};
+
+#endif
+
+#define STACK_FRAME_OVERHEAD	112	/* size of minimum stack frame */
+
+/* Size of stack frame allocated when calling signal handler. */
+/* FIXME: What should this be on 64-bit kernel (64 for 32-bit) */
+#define __SIGNAL_FRAMESIZE	64
+#define __SIGNAL_FRAMESIZE32	64
+
+#define instruction_pointer(regs) ((regs)->nip)
+#define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
+
+/*
+ * Offsets used by 'ptrace' system call interface.
+ */
+#define PT_R0	0
+#define PT_R1	1
+#define PT_R2	2
+#define PT_R3	3
+#define PT_R4	4
+#define PT_R5	5
+#define PT_R6	6
+#define PT_R7	7
+#define PT_R8	8
+#define PT_R9	9
+#define PT_R10	10
+#define PT_R11	11
+#define PT_R12	12
+#define PT_R13	13
+#define PT_R14	14
+#define PT_R15	15
+#define PT_R16	16
+#define PT_R17	17
+#define PT_R18	18
+#define PT_R19	19
+#define PT_R20	20
+#define PT_R21	21
+#define PT_R22	22
+#define PT_R23	23
+#define PT_R24	24
+#define PT_R25	25
+#define PT_R26	26
+#define PT_R27	27
+#define PT_R28	28
+#define PT_R29	29
+#define PT_R30	30
+#define PT_R31	31
+
+#define PT_NIP	32
+#define PT_MSR	33
+#ifdef __KERNEL__
+#define PT_ORIG_R3 34
+#endif
+#define PT_CTR	35
+#define PT_LNK	36
+#define PT_XER	37
+#define PT_CCR	38
+#define PT_SOFTE 39
+#define PT_RESULT 43
+
+#define PT_FPR0	48
+#ifdef __KERNEL__
+#define PT_FPSCR (PT_FPR0 + 32 + 1)	  /* each FP reg occupies 1 slot in this space */
+#define PT_FPSCR32 (PT_FPR0 + 2*32 + 1)	  /* To the 32-bit user - each FP reg occupies 2 slots in this space */
+#else
+#define PT_FPSCR (PT_FPR0 + 2*32 + 1)	/* each FP reg occupies 2 slots in this space -- Fix when 64-bit apps. */
+#endif
+
+/* Additional PTRACE requests implemented on PowerPC. */
+#define PPC_PTRACE_GETREGS	      0x99  /* Get GPRs 0 - 31 */
+#define PPC_PTRACE_SETREGS	      0x98  /* Set GPRs 0 - 31 */
+#define PPC_PTRACE_GETFPREGS	    0x97  /* Get FPRs 0 - 31 */
+#define PPC_PTRACE_SETFPREGS	    0x96  /* Set FPRs 0 - 31 */
+#define PPC_PTRACE_PEEKTEXT_3264  0x95  /* Read word at location ADDR on a 64-bit process from a 32-bit process. */
+#define PPC_PTRACE_PEEKDATA_3264  0x94  /* Read word at location ADDR on a 64-bit process from a 32-bit process. */
+#define PPC_PTRACE_POKETEXT_3264  0x93  /* Write word at location ADDR on a 64-bit process from a 32-bit process. */
+#define PPC_PTRACE_POKEDATA_3264  0x92  /* Write word at location ADDR on a 64-bit process from a 32-bit process. */
+#define PPC_PTRACE_PEEKUSR_3264   0x91  /* Read a register (specified by ADDR) out of the "user area" on a 64-bit process from a 32-bit process. */
+#define PPC_PTRACE_POKEUSR_3264   0x90  /* Write DATA into location ADDR within the "user area" on a 64-bit process from a 32-bit process. */
+
+
+#endif /* _PPC64_PTRACE_H */