1 #ifndef __ASM_CRIS_USER_H
2 #define __ASM_CRIS_USER_H
4 /* User-mode register used for core dumps. */
9 struct user_regs_struct {
10 unsigned long r0; /* General registers. */
24 unsigned long sp; /* R14, Stack pointer. */
25 unsigned long acr; /* R15, Address calculation register. */
26 unsigned long bz; /* P0, Constant zero (8-bits). */
27 unsigned long vr; /* P1, Version register (8-bits). */
28 unsigned long pid; /* P2, Process ID (8-bits). */
29 unsigned long srs; /* P3, Support register select (8-bits). */
30 unsigned long wz; /* P4, Constant zero (16-bits). */
31 unsigned long exs; /* P5, Exception status. */
32 unsigned long eda; /* P6, Exception data address. */
33 unsigned long mof; /* P7, Multiply overflow regiter. */
34 unsigned long dz; /* P8, Constant zero (32-bits). */
35 unsigned long ebp; /* P9, Exception base pointer. */
36 unsigned long erp; /* P10, Exception return pointer. */
37 unsigned long srp; /* P11, Subroutine return pointer. */
38 unsigned long nrp; /* P12, NMI return pointer. */
39 unsigned long ccs; /* P13, Condition code stack. */
40 unsigned long usp; /* P14, User mode stack pointer. */
41 unsigned long spc; /* P15, Single step PC. */
45 * Core file format: The core file is written in such a way that gdb
46 * can understand it and provide useful information to the user (under
47 * linux we use the `trad-core' bfd). The file contents are as follows:
49 * upage: 1 page consisting of a user struct that tells gdb
50 * what is present in the file. Directly after this is a
51 * copy of the task_struct, which is currently not used by gdb,
52 * but it may come in handy at some point. All of the registers
53 * are stored as part of the upage. The upage should always be
55 * data: The data segment follows next. We use current->end_text to
56 * current->brk to pick up all of the user variables, plus any memory
57 * that may have been sbrk'ed. No attempt is made to determine if a
58 * page is demand-zero or if a page is totally unused, we just cover
59 * the entire range. All of the addresses are rounded in such a way
60 * that an integral number of pages is written.
61 * stack: We need the stack information in order to get a meaningful
62 * backtrace. We need to write the data from usp to
63 * current->start_stack, so we round each of these in order to be able
64 * to write an integer number of pages.
68 struct user_regs_struct regs; /* entire machine state */
69 size_t u_tsize; /* text size (pages) */
70 size_t u_dsize; /* data size (pages) */
71 size_t u_ssize; /* stack size (pages) */
72 unsigned long start_code; /* text starting address */
73 unsigned long start_data; /* data starting address */
74 unsigned long start_stack; /* stack starting address */
75 long int signal; /* signal causing core dump */
76 unsigned long u_ar0; /* help gdb find registers */
77 unsigned long magic; /* identifies a core file */
78 char u_comm[32]; /* user command name */
81 #endif /* __ASM_CRIS_USER_H */