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 * Copyright (C) 1998, 1999 Hewlett-Packard Co
28 * Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com>
29 */
30
31 #include <linux/ptrace.h>
32
33 #include <asm/page.h>
34
35 #define EF_SIZE 3072 /* XXX fix me */
36
37 struct user {
38 unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */
39 size_t u_tsize; /* text size (pages) */
40 size_t u_dsize; /* data size (pages) */
41 size_t u_ssize; /* stack size (pages) */
42 unsigned long start_code; /* text starting address */
43 unsigned long start_data; /* data starting address */
44 unsigned long start_stack; /* stack starting address */
45 long int signal; /* signal causing core dump */
46 struct regs * u_ar0; /* help gdb find registers */
47 unsigned long magic; /* identifies a core file */
48 char u_comm[32]; /* user command name */
49 };
50
51 #define NBPG PAGE_SIZE
52 #define UPAGES 1
53 #define HOST_TEXT_START_ADDR (u.start_code)
54 #define HOST_DATA_START_ADDR (u.start_data)
55 #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
56
57 #endif /* _ASM_IA64_USER_H */
58
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