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59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
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#ifndef _ASM_IA64_USER_H
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#define _ASM_IA64_USER_H
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/*
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* Core file format: The core file is written in such a way that gdb
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* can understand it and provide useful information to the user (under
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* linux we use the `trad-core' bfd). The file contents are as
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* follows:
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*
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* upage: 1 page consisting of a user struct that tells gdb
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* what is present in the file. Directly after this is a
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* copy of the task_struct, which is currently not used by gdb,
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* but it may come in handy at some point. All of the registers
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* are stored as part of the upage. The upage should always be
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* only one page long.
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* data: The data segment follows next. We use current->end_text to
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* current->brk to pick up all of the user variables, plus any memory
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* that may have been sbrk'ed. No attempt is made to determine if a
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* page is demand-zero or if a page is totally unused, we just cover
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* the entire range. All of the addresses are rounded in such a way
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* that an integral number of pages is written.
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* stack: We need the stack information in order to get a meaningful
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* backtrace. We need to write the data from usp to
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* current->start_stack, so we round each of these in order to be able
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* to write an integer number of pages.
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*
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* Modified 1998, 1999, 2001
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* David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
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*/
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#include <linux/ptrace.h>
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#include <linux/types.h>
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#include <asm/page.h>
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#define EF_SIZE 3072 /* XXX fix me */
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struct user {
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unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */
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size_t u_tsize; /* text size (pages) */
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size_t u_dsize; /* data size (pages) */
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size_t u_ssize; /* stack size (pages) */
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unsigned long start_code; /* text starting address */
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unsigned long start_data; /* data starting address */
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unsigned long start_stack; /* stack starting address */
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long int signal; /* signal causing core dump */
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struct regs * u_ar0; /* help gdb find registers */
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unsigned long magic; /* identifies a core file */
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char u_comm[32]; /* user command name */
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};
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#define NBPG PAGE_SIZE
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#define UPAGES 1
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#define HOST_TEXT_START_ADDR (u.start_code)
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#define HOST_DATA_START_ADDR (u.start_data)
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#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
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#endif /* _ASM_IA64_USER_H */
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