1 2007-03-13 Mike Frysinger <vapier@gentoo.org>
3 * sysdeps/unix/sysv/linux/sh/sys/user.h: Copy Linux's asm-sh/user.h.
5 --- glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h
6 +++ glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h
11 -#include <features.h>
13 +#include <asm/ptrace.h>
15 -#include <asm/user.h>
17 + * Core file format: The core file is written in such a way that gdb
18 + * can understand it and provide useful information to the user (under
19 + * linux we use the `trad-core' bfd). The file contents are as follows:
21 + * upage: 1 page consisting of a user struct that tells gdb
22 + * what is present in the file. Directly after this is a
23 + * copy of the task_struct, which is currently not used by gdb,
24 + * but it may come in handy at some point. All of the registers
25 + * are stored as part of the upage. The upage should always be
26 + * only one page long.
27 + * data: The data segment follows next. We use current->end_text to
28 + * current->brk to pick up all of the user variables, plus any memory
29 + * that may have been sbrk'ed. No attempt is made to determine if a
30 + * page is demand-zero or if a page is totally unused, we just cover
31 + * the entire range. All of the addresses are rounded in such a way
32 + * that an integral number of pages is written.
33 + * stack: We need the stack information in order to get a meaningful
34 + * backtrace. We need to write the data from usp to
35 + * current->start_stack, so we round each of these in order to be able
36 + * to write an integer number of pages.
40 +struct user_fpu_struct {
41 + unsigned long fp_regs[16];
42 + unsigned long xfp_regs[16];
43 + unsigned long fpscr;
48 + struct pt_regs regs; /* entire machine state */
49 + struct user_fpu_struct fpu; /* Math Co-processor registers */
50 + int u_fpvalid; /* True if math co-processor being used */
51 + size_t u_tsize; /* text size (pages) */
52 + size_t u_dsize; /* data size (pages) */
53 + size_t u_ssize; /* stack size (pages) */
54 + unsigned long start_code; /* text starting address */
55 + unsigned long start_data; /* data starting address */
56 + unsigned long start_stack; /* stack starting address */
57 + long int signal; /* signal causing core dump */
58 + struct regs * u_ar0; /* help gdb find registers */
59 + struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */
60 + unsigned long magic; /* identifies a core file */
61 + char u_comm[32]; /* user command name */
64 +#define NBPG getpagesize()
66 +#define HOST_TEXT_START_ADDR (u.start_code)
67 +#define HOST_DATA_START_ADDR (u.start_data)
68 +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
70 #endif /* sys/user.h */