| copied from kernel as it is sanitized now |
| |
| 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 |
| --- 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 |
| +++ 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 |
| @@ -1,3 +1,90 @@ |
| +#ifndef _SYS_USER_H |
| +#define _SYS_USER_H |
| + |
| +/* Core file format: The core file is written in such a way that gdb |
| + can understand it and provide useful information to the user (under |
| + linux we use the 'trad-core' bfd). There are quite a number of |
| + obstacles to being able to view the contents of the floating point |
| + registers, and until these are solved you will not be able to view the |
| + contents of them. Actually, you can read in the core file and look at |
| + the contents of the user struct to find out what the floating point |
| + registers contain. |
| + The actual file contents are as follows: |
| + UPAGE: 1 page consisting of a user struct that tells gdb what is present |
| + in the file. Directly after this is a copy of the task_struct, which |
| + is currently not used by gdb, but it may come in useful at some point. |
| + All of the registers are stored as part of the upage. The upage should |
| + always be only one page. |
| + DATA: The data area is stored. We use current->end_text to |
| + current->brk to pick up all of the user variables, plus any memory |
| + that may have been malloced. No attempt is made to determine if a page |
| + is demand-zero or if a page is totally unused, we just cover the entire |
| + range. All of the addresses are rounded in such a way that an integral |
| + number of pages is written. |
| + STACK: We need the stack information in order to get a meaningful |
| + backtrace. We need to write the data from (esp) to |
| + current->start_stack, so we round each of these off in order to be able |
| + to write an integer number of pages. |
| + The minimum core file size is 3 pages, or 12288 bytes. |
| +*/ |
| + |
| +struct user_m68kfp_struct { |
| + unsigned long fpregs[8*3]; /* fp0-fp7 registers */ |
| + unsigned long fpcntl[3]; /* fp control regs */ |
| +}; |
| + |
| +/* This is the old layout of "struct pt_regs" as of Linux 1.x, and |
| + is still the layout used by user (the new pt_regs doesn't have |
| + all registers). */ |
| +struct user_regs_struct { |
| + long d1,d2,d3,d4,d5,d6,d7; |
| + long a0,a1,a2,a3,a4,a5,a6; |
| + long d0; |
| + long usp; |
| + long orig_d0; |
| + short stkadj; |
| + short sr; |
| + long pc; |
| + short fmtvec; |
| + short __fill; |
| +}; |
| + |
| + |
| +/* When the kernel dumps core, it starts by dumping the user struct - |
| + this will be used by gdb to figure out where the data and stack segments |
| + are within the file, and what virtual addresses to use. */ |
| +struct user{ |
| +/* We start with the registers, to mimic the way that "memory" is returned |
| + from the ptrace(3,...) function. */ |
| + struct user_regs_struct regs; /* Where the registers are actually stored */ |
| +/* ptrace does not yet supply these. Someday.... */ |
| + int u_fpvalid; /* True if math co-processor being used. */ |
| + /* for this mess. Not yet used. */ |
| + struct user_m68kfp_struct m68kfp; /* Math Co-processor registers. */ |
| +/* The rest of this junk is to help gdb figure out what goes where */ |
| + unsigned long int u_tsize; /* Text segment size (pages). */ |
| + unsigned long int u_dsize; /* Data segment size (pages). */ |
| + unsigned long int u_ssize; /* Stack segment size (pages). */ |
| + unsigned long start_code; /* Starting virtual address of text. */ |
| + unsigned long start_stack; /* Starting virtual address of stack area. |
| + This is actually the bottom of the stack, |
| + the top of the stack is always found in the |
| + esp register. */ |
| + long int signal; /* Signal that caused the core dump. */ |
| + int reserved; /* No longer used */ |
| + struct user_regs_struct *u_ar0; |
| + /* Used by gdb to help find the values for */ |
| + /* the registers. */ |
| + struct user_m68kfp_struct* u_fpstate; /* Math Co-processor pointer. */ |
| + unsigned long magic; /* To uniquely identify a core file */ |
| + char u_comm[32]; /* User command that was responsible */ |
| +}; |
| +#define NBPG 4096 |
| +#define UPAGES 1 |
| +#define HOST_TEXT_START_ADDR (u.start_code) |
| +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) |
| + |
| +#endif |
| /* Copyright (C) 2008 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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 |