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

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ALPHA_USER_H
 3#define _ALPHA_USER_H
 4
 5#include <linux/sched.h>
 6#include <linux/ptrace.h>
 7
 8#include <asm/page.h>
 9#include <asm/reg.h>
10
11/*
12 * Core file format: The core file is written in such a way that gdb
13 * can understand it and provide useful information to the user (under
14 * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
15 * are as follows:
16 *
17 *  upage: 1 page consisting of a user struct that tells gdb
18 *	what is present in the file.  Directly after this is a
19 *	copy of the task_struct, which is currently not used by gdb,
20 *	but it may come in handy at some point.  All of the registers
21 *	are stored as part of the upage.  The upage should always be
22 *	only one page long.
23 *  data: The data segment follows next.  We use current->end_text to
24 *	current->brk to pick up all of the user variables, plus any memory
25 *	that may have been sbrk'ed.  No attempt is made to determine if a
26 *	page is demand-zero or if a page is totally unused, we just cover
27 *	the entire range.  All of the addresses are rounded in such a way
28 *	that an integral number of pages is written.
29 *  stack: We need the stack information in order to get a meaningful
30 *	backtrace.  We need to write the data from usp to
31 *	current->start_stack, so we round each of these in order to be able
32 *	to write an integer number of pages.
33 */
34struct user {
35	unsigned long	regs[EF_SIZE/8+32];	/* integer and fp regs */
36	size_t		u_tsize;		/* text size (pages) */
37	size_t		u_dsize;		/* data size (pages) */
38	size_t		u_ssize;		/* stack size (pages) */
39	unsigned long	start_code;		/* text starting address */
40	unsigned long	start_data;		/* data starting address */
41	unsigned long	start_stack;		/* stack starting address */
42	long int	signal;			/* signal causing core dump */
43	unsigned long	u_ar0;			/* help gdb find registers */
44	unsigned long	magic;			/* identifies a core file */
45	char		u_comm[32];		/* user command name */
46};
47
48#define NBPG			PAGE_SIZE
49#define UPAGES			1
50#define HOST_TEXT_START_ADDR	(u.start_code)
51#define HOST_DATA_START_ADDR	(u.start_data)
52#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
53
54#endif /* _ALPHA_USER_H */