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Diffstat (limited to '')
| -rw-r--r-- | arch/ia64/include/asm/user.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/user.h b/arch/ia64/include/asm/user.h new file mode 100644 index 000000000..0ba486651 --- /dev/null +++ b/arch/ia64/include/asm/user.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_USER_H +#define _ASM_IA64_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). The 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 handy at some point. All of the registers + * are stored as part of the upage. The upage should always be + * only one page long. + * data: The data segment follows next. We use current->end_text to + * current->brk to pick up all of the user variables, plus any memory + * that may have been sbrk'ed. 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 usp to + * current->start_stack, so we round each of these in order to be able + * to write an integer number of pages. + * + * Modified 1998, 1999, 2001 + * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co + */ + +#include <linux/ptrace.h> +#include <linux/types.h> + +#include <asm/page.h> + +#define EF_SIZE 3072 /* XXX fix me */ + +struct user { + unsigned long regs[EF_SIZE/8+32]; /* integer and fp regs */ + size_t u_tsize; /* text size (pages) */ + size_t u_dsize; /* data size (pages) */ + size_t u_ssize; /* stack size (pages) */ + unsigned long start_code; /* text starting address */ + unsigned long start_data; /* data starting address */ + unsigned long start_stack; /* stack starting address */ + long int signal; /* signal causing core dump */ + unsigned long u_ar0; /* help gdb find registers */ + unsigned long magic; /* identifies a core file */ + char u_comm[32]; /* user command name */ +}; + +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_DATA_START_ADDR (u.start_data) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif /* _ASM_IA64_USER_H */ |