[mirror_ubuntu-jammy-kernel.git] / arch / c6x / include / asm / elf.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  Port on Texas Instruments TMS320C6x architecture
 *
 *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
 *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
 */
#ifndef _ASM_C6X_ELF_H
#define _ASM_C6X_ELF_H

/*
 * ELF register definitions..
 */
#include <asm/ptrace.h>

typedef unsigned long elf_greg_t;
typedef unsigned long elf_fpreg_t;

#define ELF_NGREG  58
#define ELF_NFPREG 1

typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)

#define elf_check_fdpic(x) (1)
#define elf_check_const_displacement(x) (0)

#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \
do {								\
	_regs->b4	= (_exec_map);				\
	_regs->a6	= (_interp_map);			\
	_regs->b6	= (_dynamic_addr);			\
} while (0)

#define ELF_FDPIC_CORE_EFLAGS	0

#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */

/*
 * These are used to set parameters in the core dumps.
 */
#ifdef __LITTLE_ENDIAN__
#define ELF_DATA	ELFDATA2LSB
#else
#define ELF_DATA	ELFDATA2MSB
#endif

#define ELF_CLASS	ELFCLASS32
#define ELF_ARCH	EM_TI_C6000

/* Nothing for now. Need to setup DP... */
#define ELF_PLAT_INIT(_r)

#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE	4096

#define ELF_CORE_COPY_REGS(_dest, _regs)		\
	memcpy((char *) &_dest, (char *) _regs,		\
	sizeof(struct pt_regs));

/* This yields a mask that user programs can use to figure out what
   instruction set this cpu supports.  */

#define ELF_HWCAP	(0)

/* This yields a string that ld.so will use to load implementation
   specific libraries for optimization.  This is more specific in
   intent than poking at uname or /proc/cpuinfo.  */

#define ELF_PLATFORM  (NULL)

/* C6X specific section types */
#define SHT_C6000_UNWIND	0x70000001
#define SHT_C6000_PREEMPTMAP	0x70000002
#define SHT_C6000_ATTRIBUTES	0x70000003

/* C6X specific DT_ tags */
#define DT_C6000_DSBT_BASE	0x70000000
#define DT_C6000_DSBT_SIZE	0x70000001
#define DT_C6000_PREEMPTMAP	0x70000002
#define DT_C6000_DSBT_INDEX	0x70000003

/* C6X specific relocs */
#define R_C6000_NONE		0
#define R_C6000_ABS32		1
#define R_C6000_ABS16		2
#define R_C6000_ABS8		3
#define R_C6000_PCR_S21		4
#define R_C6000_PCR_S12		5
#define R_C6000_PCR_S10		6
#define R_C6000_PCR_S7		7
#define R_C6000_ABS_S16		8
#define R_C6000_ABS_L16		9
#define R_C6000_ABS_H16		10
#define R_C6000_SBR_U15_B	11
#define R_C6000_SBR_U15_H	12
#define R_C6000_SBR_U15_W	13
#define R_C6000_SBR_S16		14
#define R_C6000_SBR_L16_B	15
#define R_C6000_SBR_L16_H	16
#define R_C6000_SBR_L16_W	17
#define R_C6000_SBR_H16_B	18
#define R_C6000_SBR_H16_H	19
#define R_C6000_SBR_H16_W	20
#define R_C6000_SBR_GOT_U15_W	21
#define R_C6000_SBR_GOT_L16_W	22
#define R_C6000_SBR_GOT_H16_W	23
#define R_C6000_DSBT_INDEX	24
#define R_C6000_PREL31		25
#define R_C6000_COPY		26
#define R_C6000_ALIGN		253
#define R_C6000_FPHEAD		254
#define R_C6000_NOCMP		255

#endif /*_ASM_C6X_ELF_H */
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
a7f626c1 AJ	2	/*
	3	* Port on Texas Instruments TMS320C6x architecture
	4	*
	5	* Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
	6	* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
a7f626c1 AJ	7	*/
	8	#ifndef _ASM_C6X_ELF_H
	9	#define _ASM_C6X_ELF_H
	10
	11	/*
	12	* ELF register definitions..
	13	*/
	14	#include <asm/ptrace.h>
	15
	16	typedef unsigned long elf_greg_t;
	17	typedef unsigned long elf_fpreg_t;
	18
	19	#define ELF_NGREG 58
	20	#define ELF_NFPREG 1
	21
	22	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	23	typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
	24
	25	/*
	26	* This is used to ensure we don't load something for the wrong architecture.
	27	*/
	28	#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)
	29
fce24476 MS	30	#define elf_check_fdpic(x) (1)
	31	#define elf_check_const_displacement(x) (0)
	32
	33	#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \
	34	do { \
	35	_regs->b4 = (_exec_map); \
	36	_regs->a6 = (_interp_map); \
	37	_regs->b6 = (_dynamic_addr); \
	38	} while (0)
	39
	40	#define ELF_FDPIC_CORE_EFLAGS 0
	41
	42	#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */
a7f626c1 AJ	43
	44	/*
	45	* These are used to set parameters in the core dumps.
	46	*/
	47	#ifdef __LITTLE_ENDIAN__
	48	#define ELF_DATA ELFDATA2LSB
	49	#else
	50	#define ELF_DATA ELFDATA2MSB
	51	#endif
	52
	53	#define ELF_CLASS ELFCLASS32
	54	#define ELF_ARCH EM_TI_C6000
	55
	56	/* Nothing for now. Need to setup DP... */
	57	#define ELF_PLAT_INIT(_r)
	58
	59	#define USE_ELF_CORE_DUMP
	60	#define ELF_EXEC_PAGESIZE 4096
	61
	62	#define ELF_CORE_COPY_REGS(_dest, _regs) \
	63	memcpy((char ) &_dest, (char ) _regs, \
	64	sizeof(struct pt_regs));
	65
	66	/* This yields a mask that user programs can use to figure out what
	67	instruction set this cpu supports. */
	68
	69	#define ELF_HWCAP (0)
	70
	71	/* This yields a string that ld.so will use to load implementation
	72	specific libraries for optimization. This is more specific in
	73	intent than poking at uname or /proc/cpuinfo. */
	74
	75	#define ELF_PLATFORM (NULL)
	76
a7f626c1 AJ	77	/* C6X specific section types */
	78	#define SHT_C6000_UNWIND 0x70000001
	79	#define SHT_C6000_PREEMPTMAP 0x70000002
	80	#define SHT_C6000_ATTRIBUTES 0x70000003
	81
	82	/* C6X specific DT_ tags */
	83	#define DT_C6000_DSBT_BASE 0x70000000
	84	#define DT_C6000_DSBT_SIZE 0x70000001
	85	#define DT_C6000_PREEMPTMAP 0x70000002
	86	#define DT_C6000_DSBT_INDEX 0x70000003
	87
	88	/* C6X specific relocs */
	89	#define R_C6000_NONE 0
	90	#define R_C6000_ABS32 1
	91	#define R_C6000_ABS16 2
	92	#define R_C6000_ABS8 3
	93	#define R_C6000_PCR_S21 4
	94	#define R_C6000_PCR_S12 5
	95	#define R_C6000_PCR_S10 6
	96	#define R_C6000_PCR_S7 7
	97	#define R_C6000_ABS_S16 8
	98	#define R_C6000_ABS_L16 9
	99	#define R_C6000_ABS_H16 10
	100	#define R_C6000_SBR_U15_B 11
	101	#define R_C6000_SBR_U15_H 12
	102	#define R_C6000_SBR_U15_W 13
	103	#define R_C6000_SBR_S16 14
	104	#define R_C6000_SBR_L16_B 15
	105	#define R_C6000_SBR_L16_H 16
	106	#define R_C6000_SBR_L16_W 17
	107	#define R_C6000_SBR_H16_B 18
	108	#define R_C6000_SBR_H16_H 19
	109	#define R_C6000_SBR_H16_W 20
	110	#define R_C6000_SBR_GOT_U15_W 21
	111	#define R_C6000_SBR_GOT_L16_W 22
	112	#define R_C6000_SBR_GOT_H16_W 23
	113	#define R_C6000_DSBT_INDEX 24
	114	#define R_C6000_PREL31 25
	115	#define R_C6000_COPY 26
	116	#define R_C6000_ALIGN 253
	117	#define R_C6000_FPHEAD 254
	118	#define R_C6000_NOCMP 255
	119
	120	#endif /_ASM_C6X_ELF_H /