Orange Pi5 kernel

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