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1da177e4 LT |
1 | #ifndef __ASM_SH_USER_H |
2 | #define __ASM_SH_USER_H | |
3 | ||
4 | #include <asm/ptrace.h> | |
5 | #include <asm/page.h> | |
6 | ||
7 | /* | |
8 | * Core file format: The core file is written in such a way that gdb | |
9 | * can understand it and provide useful information to the user (under | |
10 | * linux we use the `trad-core' bfd). The file contents are as follows: | |
11 | * | |
12 | * upage: 1 page consisting of a user struct that tells gdb | |
13 | * what is present in the file. Directly after this is a | |
14 | * copy of the task_struct, which is currently not used by gdb, | |
15 | * but it may come in handy at some point. All of the registers | |
16 | * are stored as part of the upage. The upage should always be | |
17 | * only one page long. | |
18 | * data: The data segment follows next. We use current->end_text to | |
19 | * current->brk to pick up all of the user variables, plus any memory | |
20 | * that may have been sbrk'ed. No attempt is made to determine if a | |
21 | * page is demand-zero or if a page is totally unused, we just cover | |
22 | * the entire range. All of the addresses are rounded in such a way | |
23 | * that an integral number of pages is written. | |
24 | * stack: We need the stack information in order to get a meaningful | |
25 | * backtrace. We need to write the data from usp to | |
26 | * current->start_stack, so we round each of these in order to be able | |
27 | * to write an integer number of pages. | |
28 | */ | |
29 | ||
17bfa639 | 30 | #if defined(__SH5__) || defined(CONFIG_CPU_SH5) |
fb8e569c | 31 | struct user_fpu_struct { |
17bfa639 PM |
32 | unsigned long fp_regs[32]; |
33 | unsigned int fpscr; | |
34 | }; | |
35 | #else | |
1da177e4 LT |
36 | struct user_fpu_struct { |
37 | unsigned long fp_regs[16]; | |
38 | unsigned long xfp_regs[16]; | |
39 | unsigned long fpscr; | |
40 | unsigned long fpul; | |
41 | }; | |
17bfa639 | 42 | #endif |
1da177e4 LT |
43 | |
44 | struct user { | |
45 | struct pt_regs regs; /* entire machine state */ | |
46 | struct user_fpu_struct fpu; /* Math Co-processor registers */ | |
47 | int u_fpvalid; /* True if math co-processor being used */ | |
48 | size_t u_tsize; /* text size (pages) */ | |
49 | size_t u_dsize; /* data size (pages) */ | |
50 | size_t u_ssize; /* stack size (pages) */ | |
51 | unsigned long start_code; /* text starting address */ | |
52 | unsigned long start_data; /* data starting address */ | |
53 | unsigned long start_stack; /* stack starting address */ | |
54 | long int signal; /* signal causing core dump */ | |
6e16d89b | 55 | unsigned long u_ar0; /* help gdb find registers */ |
1da177e4 LT |
56 | struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */ |
57 | unsigned long magic; /* identifies a core file */ | |
58 | char u_comm[32]; /* user command name */ | |
59 | }; | |
60 | ||
61 | #define NBPG PAGE_SIZE | |
62 | #define UPAGES 1 | |
63 | #define HOST_TEXT_START_ADDR (u.start_code) | |
64 | #define HOST_DATA_START_ADDR (u.start_data) | |
65 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | |
66 | ||
67 | #endif /* __ASM_SH_USER_H */ |