patch-1.3.33 linux/include/linux/user.h
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- Lines: 80
- Date:
Mon Oct 9 13:10:41 1995
- Orig file:
v1.3.32/linux/include/linux/user.h
- Orig date:
Mon Sep 18 14:54:10 1995
diff -u --recursive --new-file v1.3.32/linux/include/linux/user.h linux/include/linux/user.h
@@ -1,78 +1 @@
-#ifndef _LINUX_USER_H
-#define _LINUX_USER_H
-
-#include <asm/page.h>
-#include <linux/ptrace.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_i387_struct {
- long cwd;
- long swd;
- long twd;
- long fip;
- long fcs;
- long foo;
- long fos;
- long st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
-};
-
-/* 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 pt_regs 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_i387_struct i387; /* 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 pt_regs * u_ar0; /* Used by gdb to help find the values for */
- /* the registers. */
- struct user_i387_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 */
- int u_debugreg[8];
-};
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
-
-#endif
+#include <asm/user.h>
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TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this