4 #include <linux/sched.h>
5 #include <linux/ptrace.h>
11 * Core file format: The core file is written in such a way that gdb
12 * can understand it and provide useful information to the user (under
13 * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
16 * upage: 1 page consisting of a user struct that tells gdb
17 * what is present in the file. Directly after this is a
18 * copy of the task_struct, which is currently not used by gdb,
19 * but it may come in handy at some point. All of the registers
20 * are stored as part of the upage. The upage should always be
22 * data: The data segment follows next. We use current->end_text to
23 * current->brk to pick up all of the user variables, plus any memory
24 * that may have been sbrk'ed. No attempt is made to determine if a
25 * page is demand-zero or if a page is totally unused, we just cover
26 * the entire range. All of the addresses are rounded in such a way
27 * that an integral number of pages is written.
28 * stack: We need the stack information in order to get a meaningful
29 * backtrace. We need to write the data from usp to
30 * current->start_stack, so we round each of these in order to be able
31 * to write an integer number of pages.
34 unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */
35 size_t u_tsize; /* text size (pages) */
36 size_t u_dsize; /* data size (pages) */
37 size_t u_ssize; /* stack size (pages) */
38 unsigned long start_code; /* text starting address */
39 unsigned long start_data; /* data starting address */
40 unsigned long start_stack; /* stack starting address */
41 long int signal; /* signal causing core dump */
42 unsigned long u_ar0; /* help gdb find registers */
43 unsigned long magic; /* identifies a core file */
44 char u_comm[32]; /* user command name */
47 #define NBPG PAGE_SIZE
49 #define HOST_TEXT_START_ADDR (u.start_code)
50 #define HOST_DATA_START_ADDR (u.start_data)
51 #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
53 #endif /* _ALPHA_USER_H */