1 #ifndef _ASM_IA64_USER_H 2 #define _ASM_IA64_USER_H 3 4 /* 5 * Core file format: The core file is written in such a way that gdb 6 * can understand it and provide useful information to the user (under 7 * linux we use the `trad-core' bfd). The file contents are as 8 * follows: 9 * 10 * upage: 1 page consisting of a user struct that tells gdb 11 * what is present in the file. Directly after this is a 12 * copy of the task_struct, which is currently not used by gdb, 13 * but it may come in handy at some point. All of the registers 14 * are stored as part of the upage. The upage should always be 15 * only one page long. 16 * data: The data segment follows next. We use current->end_text to 17 * current->brk to pick up all of the user variables, plus any memory 18 * that may have been sbrk'ed. No attempt is made to determine if a 19 * page is demand-zero or if a page is totally unused, we just cover 20 * the entire range. All of the addresses are rounded in such a way 21 * that an integral number of pages is written. 22 * stack: We need the stack information in order to get a meaningful 23 * backtrace. We need to write the data from usp to 24 * current->start_stack, so we round each of these in order to be able 25 * to write an integer number of pages. 26 * 27 * Modified 1998, 1999, 2001 28 * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co 29 */ 30 31 #include <linux/ptrace.h> 32 #include <linux/types.h> 33 34 #include <asm/page.h> 35 36 #define EF_SIZE 3072 /* XXX fix me */ 37 38 struct user { 39 unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */ 40 size_t u_tsize; /* text size (pages) */ 41 size_t u_dsize; /* data size (pages) */ 42 size_t u_ssize; /* stack size (pages) */ 43 unsigned long start_code; /* text starting address */ 44 unsigned long start_data; /* data starting address */ 45 unsigned long start_stack; /* stack starting address */ 46 long int signal; /* signal causing core dump */ 47 unsigned long u_ar0; /* help gdb find registers */ 48 unsigned long magic; /* identifies a core file */ 49 char u_comm[32]; /* user command name */ 50 }; 51 52 #define NBPG PAGE_SIZE 53 #define UPAGES 1 54 #define HOST_TEXT_START_ADDR (u.start_code) 55 #define HOST_DATA_START_ADDR (u.start_data) 56 #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) 57 58 #endif /* _ASM_IA64_USER_H */ 59