1*7f30491cSTony Luck #ifndef _ASM_IA64_USER_H 2*7f30491cSTony Luck #define _ASM_IA64_USER_H 3*7f30491cSTony Luck 4*7f30491cSTony Luck /* 5*7f30491cSTony Luck * Core file format: The core file is written in such a way that gdb 6*7f30491cSTony Luck * can understand it and provide useful information to the user (under 7*7f30491cSTony Luck * linux we use the `trad-core' bfd). The file contents are as 8*7f30491cSTony Luck * follows: 9*7f30491cSTony Luck * 10*7f30491cSTony Luck * upage: 1 page consisting of a user struct that tells gdb 11*7f30491cSTony Luck * what is present in the file. Directly after this is a 12*7f30491cSTony Luck * copy of the task_struct, which is currently not used by gdb, 13*7f30491cSTony Luck * but it may come in handy at some point. All of the registers 14*7f30491cSTony Luck * are stored as part of the upage. The upage should always be 15*7f30491cSTony Luck * only one page long. 16*7f30491cSTony Luck * data: The data segment follows next. We use current->end_text to 17*7f30491cSTony Luck * current->brk to pick up all of the user variables, plus any memory 18*7f30491cSTony Luck * that may have been sbrk'ed. No attempt is made to determine if a 19*7f30491cSTony Luck * page is demand-zero or if a page is totally unused, we just cover 20*7f30491cSTony Luck * the entire range. All of the addresses are rounded in such a way 21*7f30491cSTony Luck * that an integral number of pages is written. 22*7f30491cSTony Luck * stack: We need the stack information in order to get a meaningful 23*7f30491cSTony Luck * backtrace. We need to write the data from usp to 24*7f30491cSTony Luck * current->start_stack, so we round each of these in order to be able 25*7f30491cSTony Luck * to write an integer number of pages. 26*7f30491cSTony Luck * 27*7f30491cSTony Luck * Modified 1998, 1999, 2001 28*7f30491cSTony Luck * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co 29*7f30491cSTony Luck */ 30*7f30491cSTony Luck 31*7f30491cSTony Luck #include <linux/ptrace.h> 32*7f30491cSTony Luck #include <linux/types.h> 33*7f30491cSTony Luck 34*7f30491cSTony Luck #include <asm/page.h> 35*7f30491cSTony Luck 36*7f30491cSTony Luck #define EF_SIZE 3072 /* XXX fix me */ 37*7f30491cSTony Luck 38*7f30491cSTony Luck struct user { 39*7f30491cSTony Luck unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */ 40*7f30491cSTony Luck size_t u_tsize; /* text size (pages) */ 41*7f30491cSTony Luck size_t u_dsize; /* data size (pages) */ 42*7f30491cSTony Luck size_t u_ssize; /* stack size (pages) */ 43*7f30491cSTony Luck unsigned long start_code; /* text starting address */ 44*7f30491cSTony Luck unsigned long start_data; /* data starting address */ 45*7f30491cSTony Luck unsigned long start_stack; /* stack starting address */ 46*7f30491cSTony Luck long int signal; /* signal causing core dump */ 47*7f30491cSTony Luck unsigned long u_ar0; /* help gdb find registers */ 48*7f30491cSTony Luck unsigned long magic; /* identifies a core file */ 49*7f30491cSTony Luck char u_comm[32]; /* user command name */ 50*7f30491cSTony Luck }; 51*7f30491cSTony Luck 52*7f30491cSTony Luck #define NBPG PAGE_SIZE 53*7f30491cSTony Luck #define UPAGES 1 54*7f30491cSTony Luck #define HOST_TEXT_START_ADDR (u.start_code) 55*7f30491cSTony Luck #define HOST_DATA_START_ADDR (u.start_data) 56*7f30491cSTony Luck #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) 57*7f30491cSTony Luck 58*7f30491cSTony Luck #endif /* _ASM_IA64_USER_H */ 59