1633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham/* 2633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * This file is subject to the terms and conditions of the GNU General Public 3633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * License. See the file "COPYING" in the main directory of this archive 4633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * for more details. 5633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * 6633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle 7633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham */ 8633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#ifndef _ASM_USER_H 9633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define _ASM_USER_H 10633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham 11633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#include <asm/page.h> 12633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#include <asm/reg.h> 13633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham 1422e2427e42fffbd75325c615729f46644c08f028Raghu Gandham#define EF_SIZE 180 15633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham/* 16633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * Core file format: The core file is written in such a way that gdb 17633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * can understand it and provide useful information to the user (under 18633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * linux we use the `trad-core' bfd, NOT the irix-core). The file 19633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * contents are as follows: 20633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * 21633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * upage: 1 page consisting of a user struct that tells gdb 22633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * what is present in the file. Directly after this is a 23633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * copy of the task_struct, which is currently not used by gdb, 24633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * but it may come in handy at some point. All of the registers 25633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * are stored as part of the upage. The upage should always be 26633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * only one page long. 27633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * data: The data segment follows next. We use current->end_text to 28633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * current->brk to pick up all of the user variables, plus any memory 29633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * that may have been sbrk'ed. No attempt is made to determine if a 30633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * page is demand-zero or if a page is totally unused, we just cover 31633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * the entire range. All of the addresses are rounded in such a way 32633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * that an integral number of pages is written. 33633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * stack: We need the stack information in order to get a meaningful 34633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * backtrace. We need to write the data from usp to 35633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * current->start_stack, so we round each of these in order to be able 36633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham * to write an integer number of pages. 37633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham */ 38633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandhamstruct user { 39633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long regs[EF_SIZE / /* integer and fp regs */ 40633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham sizeof(unsigned long) + 64]; 41633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham size_t u_tsize; /* text size (pages) */ 42633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham size_t u_dsize; /* data size (pages) */ 43633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham size_t u_ssize; /* stack size (pages) */ 44633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long start_code; /* text starting address */ 45633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long start_data; /* data starting address */ 46633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long start_stack; /* stack starting address */ 47633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham long int signal; /* signal causing core dump */ 48633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long u_ar0; /* help gdb find registers */ 49633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham unsigned long magic; /* identifies a core file */ 50633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham char u_comm[32]; /* user command name */ 51633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham}; 52633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham 53633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define NBPG PAGE_SIZE 54633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define UPAGES 1 55633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define HOST_TEXT_START_ADDR (u.start_code) 56633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define HOST_DATA_START_ADDR (u.start_data) 57633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) 58633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham 59633c3473533ad9f2cca069b22cc5d95cd4e3510bRaghu Gandham#endif /* _ASM_USER_H */ 60