| #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 */ |
