1 copied from kernel as it is sanitized now
3 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/m68k/sys/user.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/m68k/sys/user.h
4 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/m68k/sys/user.h 2009-05-16 10:36:20.000000000 +0200
5 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/m68k/sys/user.h 2009-11-13 00:50:31.000000000 +0100
10 +/* Core file format: The core file is written in such a way that gdb
11 + can understand it and provide useful information to the user (under
12 + linux we use the 'trad-core' bfd). There are quite a number of
13 + obstacles to being able to view the contents of the floating point
14 + registers, and until these are solved you will not be able to view the
15 + contents of them. Actually, you can read in the core file and look at
16 + the contents of the user struct to find out what the floating point
18 + The actual file contents are as follows:
19 + UPAGE: 1 page consisting of a user struct that tells gdb what is present
20 + in the file. Directly after this is a copy of the task_struct, which
21 + is currently not used by gdb, but it may come in useful at some point.
22 + All of the registers are stored as part of the upage. The upage should
23 + always be only one page.
24 + DATA: The data area is stored. We use current->end_text to
25 + current->brk to pick up all of the user variables, plus any memory
26 + that may have been malloced. No attempt is made to determine if a page
27 + is demand-zero or if a page is totally unused, we just cover the entire
28 + range. All of the addresses are rounded in such a way that an integral
29 + number of pages is written.
30 + STACK: We need the stack information in order to get a meaningful
31 + backtrace. We need to write the data from (esp) to
32 + current->start_stack, so we round each of these off in order to be able
33 + to write an integer number of pages.
34 + The minimum core file size is 3 pages, or 12288 bytes.
37 +struct user_m68kfp_struct {
38 + unsigned long fpregs[8*3]; /* fp0-fp7 registers */
39 + unsigned long fpcntl[3]; /* fp control regs */
42 +/* This is the old layout of "struct pt_regs" as of Linux 1.x, and
43 + is still the layout used by user (the new pt_regs doesn't have
45 +struct user_regs_struct {
46 + long d1,d2,d3,d4,d5,d6,d7;
47 + long a0,a1,a2,a3,a4,a5,a6;
59 +/* When the kernel dumps core, it starts by dumping the user struct -
60 + this will be used by gdb to figure out where the data and stack segments
61 + are within the file, and what virtual addresses to use. */
63 +/* We start with the registers, to mimic the way that "memory" is returned
64 + from the ptrace(3,...) function. */
65 + struct user_regs_struct regs; /* Where the registers are actually stored */
66 +/* ptrace does not yet supply these. Someday.... */
67 + int u_fpvalid; /* True if math co-processor being used. */
68 + /* for this mess. Not yet used. */
69 + struct user_m68kfp_struct m68kfp; /* Math Co-processor registers. */
70 +/* The rest of this junk is to help gdb figure out what goes where */
71 + unsigned long int u_tsize; /* Text segment size (pages). */
72 + unsigned long int u_dsize; /* Data segment size (pages). */
73 + unsigned long int u_ssize; /* Stack segment size (pages). */
74 + unsigned long start_code; /* Starting virtual address of text. */
75 + unsigned long start_stack; /* Starting virtual address of stack area.
76 + This is actually the bottom of the stack,
77 + the top of the stack is always found in the
79 + long int signal; /* Signal that caused the core dump. */
80 + int reserved; /* No longer used */
81 + struct user_regs_struct *u_ar0;
82 + /* Used by gdb to help find the values for */
83 + /* the registers. */
84 + struct user_m68kfp_struct* u_fpstate; /* Math Co-processor pointer. */
85 + unsigned long magic; /* To uniquely identify a core file */
86 + char u_comm[32]; /* User command that was responsible */
90 +#define HOST_TEXT_START_ADDR (u.start_code)
91 +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
94 /* Copyright (C) 2008 Free Software Foundation, Inc.
95 This file is part of the GNU C Library.
97 diff -durN glibc-2.10.1.orig/ports/sysdeps/unix/sysv/linux/m68k/sys/user.h glibc-2.10.1/ports/sysdeps/unix/sysv/linux/m68k/sys/user.h