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#ifndef __ASM_CRIS_USER_H
#define __ASM_CRIS_USER_H
#include <linux/types.h>
#include <asm/ptrace.h>
#include <asm/page.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.
*/
/* User mode registers, used for core dumps. In order to keep ELF_NGREG
sensible we let all registers be 32 bits. The csr registers are included
for future use. */
struct user_regs_struct {
unsigned long r0; /* General registers. */
unsigned long r1;
unsigned long r2;
unsigned long r3;
unsigned long r4;
unsigned long r5;
unsigned long r6;
unsigned long r7;
unsigned long r8;
unsigned long r9;
unsigned long r10;
unsigned long r11;
unsigned long r12;
unsigned long r13;
unsigned long sp; /* Stack pointer. */
unsigned long pc; /* Program counter. */
unsigned long p0; /* Constant zero (only 8 bits). */
unsigned long vr; /* Version register (only 8 bits). */
unsigned long p2; /* Reserved. */
unsigned long p3; /* Reserved. */
unsigned long p4; /* Constant zero (only 16 bits). */
unsigned long ccr; /* Condition code register (only 16 bits). */
unsigned long p6; /* Reserved. */
unsigned long mof; /* Multiply overflow register. */
unsigned long p8; /* Constant zero. */
unsigned long ibr; /* Not accessible. */
unsigned long irp; /* Not accessible. */
unsigned long srp; /* Subroutine return pointer. */
unsigned long bar; /* Not accessible. */
unsigned long dccr; /* Dword condition code register. */
unsigned long brp; /* Not accessible. */
unsigned long usp; /* User-mode stack pointer. Same as sp when
in user mode. */
unsigned long csrinstr; /* Internal status registers. */
unsigned long csraddr;
unsigned long csrdata;
};
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 */
struct regs * 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 */
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