mirror of https://gitee.com/openkylin/linux.git
53 lines
2.1 KiB
C
53 lines
2.1 KiB
C
|
#ifndef __ASM_CRIS_USER_H
|
||
|
|
#define __ASM_CRIS_USER_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <asm/ptrace.h>
|
||
|
|
#include <asm/page.h>
|
||
|
|
#include <arch/user.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Core file format: The core file is written in such a way that gdb
|
||
|
|
* can understand it and provide useful information to the user (under
|
||
|
|
* linux we use the `trad-core' bfd). The file contents are as follows:
|
||
|
|
*
|
||
|
|
* upage: 1 page consisting of a user struct that tells gdb
|
||
|
|
* what is present in the file. Directly after this is a
|
||
|
|
* copy of the task_struct, which is currently not used by gdb,
|
||
|
|
* but it may come in handy at some point. All of the registers
|
||
|
|
* are stored as part of the upage. The upage should always be
|
||
|
|
* only one page long.
|
||
|
|
* data: The data segment follows next. We use current->end_text to
|
||
|
|
* current->brk to pick up all of the user variables, plus any memory
|
||
|
|
* that may have been sbrk'ed. No attempt is made to determine if a
|
||
|
|
* page is demand-zero or if a page is totally unused, we just cover
|
||
|
|
* the entire range. All of the addresses are rounded in such a way
|
||
|
|
* that an integral number of pages is written.
|
||
|
|
* stack: We need the stack information in order to get a meaningful
|
||
|
|
* backtrace. We need to write the data from usp to
|
||
|
|
* current->start_stack, so we round each of these in order to be able
|
||
|
|
* to write an integer number of pages.
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct user {
|
||
|
|
struct user_regs_struct regs; /* entire machine state */
|
||
|
|
size_t u_tsize; /* text size (pages) */
|
||
|
|
size_t u_dsize; /* data size (pages) */
|
||
|
|
size_t u_ssize; /* stack size (pages) */
|
||
|
|
unsigned long start_code; /* text starting address */
|
||
|
|
unsigned long start_data; /* data starting address */
|
||
|
|
unsigned long start_stack; /* stack starting address */
|
||
|
|
long int signal; /* signal causing core dump */
|
||
|
|
unsigned long u_ar0; /* help gdb find registers */
|
||
|
|
unsigned long magic; /* identifies a core file */
|
||
|
|
char u_comm[32]; /* user command name */
|
||
|
|
};
|
||
|
|
|
||
|
|
#define NBPG PAGE_SIZE
|
||
|
|
#define UPAGES 1
|
||
|
|
#define HOST_TEXT_START_ADDR (u.start_code)
|
||
|
|
#define HOST_DATA_START_ADDR (u.start_data)
|
||
|
|
#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
|
||
|
|
|
||
|
|
#endif /* __ASM_CRIS_USER_H */
|