^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _ASM_IA64_USER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _ASM_IA64_USER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Core file format: The core file is written in such a way that gdb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * can understand it and provide useful information to the user (under
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * linux we use the `trad-core' bfd). The file contents are as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * follows:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * upage: 1 page consisting of a user struct that tells gdb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * what is present in the file. Directly after this is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * copy of the task_struct, which is currently not used by gdb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * but it may come in handy at some point. All of the registers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * are stored as part of the upage. The upage should always be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * only one page long.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * data: The data segment follows next. We use current->end_text to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * current->brk to pick up all of the user variables, plus any memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * that may have been sbrk'ed. No attempt is made to determine if a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * page is demand-zero or if a page is totally unused, we just cover
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * the entire range. All of the addresses are rounded in such a way
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * that an integral number of pages is written.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * stack: We need the stack information in order to get a meaningful
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * backtrace. We need to write the data from usp to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * current->start_stack, so we round each of these in order to be able
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * to write an integer number of pages.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Modified 1998, 1999, 2001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define EF_SIZE 3072 /* XXX fix me */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct user {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) size_t u_tsize; /* text size (pages) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) size_t u_dsize; /* data size (pages) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) size_t u_ssize; /* stack size (pages) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) unsigned long start_code; /* text starting address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) unsigned long start_data; /* data starting address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) unsigned long start_stack; /* stack starting address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) long int signal; /* signal causing core dump */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) unsigned long u_ar0; /* help gdb find registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) unsigned long magic; /* identifies a core file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) char u_comm[32]; /* user command name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define NBPG PAGE_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define UPAGES 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define HOST_TEXT_START_ADDR (u.start_code)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define HOST_DATA_START_ADDR (u.start_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif /* _ASM_IA64_USER_H */