| /* | |
| * ELF definitions for the Hexagon architecture | |
| * | |
| * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 and | |
| * only version 2 as published by the Free Software Foundation. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
| * 02110-1301, USA. | |
| */ | |
| #ifndef __ASM_ELF_H | |
| #define __ASM_ELF_H | |
| #include <asm/ptrace.h> | |
| #include <asm/user.h> | |
| /* | |
| * This should really be in linux/elf-em.h. | |
| */ | |
| #define EM_HEXAGON 164 /* QUALCOMM Hexagon */ | |
| struct elf32_hdr; | |
| /* | |
| * ELF header e_flags defines. | |
| */ | |
| /* should have stuff like "CPU type" and maybe "ABI version", etc */ | |
| /* Hexagon relocations */ | |
| /* V2 */ | |
| #define R_HEXAGON_NONE 0 | |
| #define R_HEXAGON_B22_PCREL 1 | |
| #define R_HEXAGON_B15_PCREL 2 | |
| #define R_HEXAGON_B7_PCREL 3 | |
| #define R_HEXAGON_LO16 4 | |
| #define R_HEXAGON_HI16 5 | |
| #define R_HEXAGON_32 6 | |
| #define R_HEXAGON_16 7 | |
| #define R_HEXAGON_8 8 | |
| #define R_HEXAGON_GPREL16_0 9 | |
| #define R_HEXAGON_GPREL16_1 10 | |
| #define R_HEXAGON_GPREL16_2 11 | |
| #define R_HEXAGON_GPREL16_3 12 | |
| #define R_HEXAGON_HL16 13 | |
| /* V3 */ | |
| #define R_HEXAGON_B13_PCREL 14 | |
| /* V4 */ | |
| #define R_HEXAGON_B9_PCREL 15 | |
| /* V4 (extenders) */ | |
| #define R_HEXAGON_B32_PCREL_X 16 | |
| #define R_HEXAGON_32_6_X 17 | |
| /* V4 (extended) */ | |
| #define R_HEXAGON_B22_PCREL_X 18 | |
| #define R_HEXAGON_B15_PCREL_X 19 | |
| #define R_HEXAGON_B13_PCREL_X 20 | |
| #define R_HEXAGON_B9_PCREL_X 21 | |
| #define R_HEXAGON_B7_PCREL_X 22 | |
| #define R_HEXAGON_16_X 23 | |
| #define R_HEXAGON_12_X 24 | |
| #define R_HEXAGON_11_X 25 | |
| #define R_HEXAGON_10_X 26 | |
| #define R_HEXAGON_9_X 27 | |
| #define R_HEXAGON_8_X 28 | |
| #define R_HEXAGON_7_X 29 | |
| #define R_HEXAGON_6_X 30 | |
| /* V2 PIC */ | |
| #define R_HEXAGON_32_PCREL 31 | |
| #define R_HEXAGON_COPY 32 | |
| #define R_HEXAGON_GLOB_DAT 33 | |
| #define R_HEXAGON_JMP_SLOT 34 | |
| #define R_HEXAGON_RELATIVE 35 | |
| #define R_HEXAGON_PLT_B22_PCREL 36 | |
| #define R_HEXAGON_GOTOFF_LO16 37 | |
| #define R_HEXAGON_GOTOFF_HI16 38 | |
| #define R_HEXAGON_GOTOFF_32 39 | |
| #define R_HEXAGON_GOT_LO16 40 | |
| #define R_HEXAGON_GOT_HI16 41 | |
| #define R_HEXAGON_GOT_32 42 | |
| #define R_HEXAGON_GOT_16 43 | |
| /* | |
| * ELF register definitions.. | |
| */ | |
| typedef unsigned long elf_greg_t; | |
| typedef struct user_regs_struct elf_gregset_t; | |
| #define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long)) | |
| /* Placeholder */ | |
| typedef unsigned long elf_fpregset_t; | |
| /* | |
| * Bypass the whole "regsets" thing for now and use the define. | |
| */ | |
| #if CONFIG_HEXAGON_ARCH_VERSION >= 4 | |
| #define CS_COPYREGS(DEST,REGS) \ | |
| do {\ | |
| DEST.cs0 = REGS->cs0;\ | |
| DEST.cs1 = REGS->cs1;\ | |
| } while (0) | |
| #else | |
| #define CS_COPYREGS(DEST,REGS) | |
| #endif | |
| #define ELF_CORE_COPY_REGS(DEST, REGS) \ | |
| do { \ | |
| DEST.r0 = REGS->r00; \ | |
| DEST.r1 = REGS->r01; \ | |
| DEST.r2 = REGS->r02; \ | |
| DEST.r3 = REGS->r03; \ | |
| DEST.r4 = REGS->r04; \ | |
| DEST.r5 = REGS->r05; \ | |
| DEST.r6 = REGS->r06; \ | |
| DEST.r7 = REGS->r07; \ | |
| DEST.r8 = REGS->r08; \ | |
| DEST.r9 = REGS->r09; \ | |
| DEST.r10 = REGS->r10; \ | |
| DEST.r11 = REGS->r11; \ | |
| DEST.r12 = REGS->r12; \ | |
| DEST.r13 = REGS->r13; \ | |
| DEST.r14 = REGS->r14; \ | |
| DEST.r15 = REGS->r15; \ | |
| DEST.r16 = REGS->r16; \ | |
| DEST.r17 = REGS->r17; \ | |
| DEST.r18 = REGS->r18; \ | |
| DEST.r19 = REGS->r19; \ | |
| DEST.r20 = REGS->r20; \ | |
| DEST.r21 = REGS->r21; \ | |
| DEST.r22 = REGS->r22; \ | |
| DEST.r23 = REGS->r23; \ | |
| DEST.r24 = REGS->r24; \ | |
| DEST.r25 = REGS->r25; \ | |
| DEST.r26 = REGS->r26; \ | |
| DEST.r27 = REGS->r27; \ | |
| DEST.r28 = REGS->r28; \ | |
| DEST.r29 = pt_psp(REGS); \ | |
| DEST.r30 = REGS->r30; \ | |
| DEST.r31 = REGS->r31; \ | |
| DEST.sa0 = REGS->sa0; \ | |
| DEST.lc0 = REGS->lc0; \ | |
| DEST.sa1 = REGS->sa1; \ | |
| DEST.lc1 = REGS->lc1; \ | |
| DEST.m0 = REGS->m0; \ | |
| DEST.m1 = REGS->m1; \ | |
| DEST.usr = REGS->usr; \ | |
| DEST.p3_0 = REGS->preds; \ | |
| DEST.gp = REGS->gp; \ | |
| DEST.ugp = REGS->ugp; \ | |
| CS_COPYREGS(DEST,REGS); \ | |
| DEST.pc = pt_elr(REGS); \ | |
| DEST.cause = pt_cause(REGS); \ | |
| DEST.badva = pt_badva(REGS); \ | |
| } while (0); | |
| /* | |
| * This is used to ensure we don't load something for the wrong architecture. | |
| * Checks the machine and ABI type. | |
| */ | |
| #define elf_check_arch(hdr) ((hdr)->e_machine == EM_HEXAGON) | |
| /* | |
| * These are used to set parameters in the core dumps. | |
| */ | |
| #define ELF_CLASS ELFCLASS32 | |
| #define ELF_DATA ELFDATA2LSB | |
| #define ELF_ARCH EM_HEXAGON | |
| #if CONFIG_HEXAGON_ARCH_VERSION == 2 | |
| #define ELF_CORE_EFLAGS 0x1 | |
| #endif | |
| #if CONFIG_HEXAGON_ARCH_VERSION == 3 | |
| #define ELF_CORE_EFLAGS 0x2 | |
| #endif | |
| #if CONFIG_HEXAGON_ARCH_VERSION == 4 | |
| #define ELF_CORE_EFLAGS 0x3 | |
| #endif | |
| /* | |
| * Some architectures have ld.so set up a pointer to a function | |
| * to be registered using atexit, to facilitate cleanup. So that | |
| * static executables will be well-behaved, we would null the register | |
| * in question here, in the pt_regs structure passed. For now, | |
| * leave it a null macro. | |
| */ | |
| #define ELF_PLAT_INIT(regs, load_addr) do { } while (0) | |
| #define USE_ELF_CORE_DUMP | |
| #define CORE_DUMP_USE_REGSET | |
| /* Hrm is this going to cause problems for changing PAGE_SIZE? */ | |
| #define ELF_EXEC_PAGESIZE PAGE_SIZE | |
| /* | |
| * This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
| * use of this is to invoke "./ld.so someprog" to test out a new version of | |
| * the loader. We need to make sure that it is out of the way of the program | |
| * that it will "exec", and that there is sufficient room for the brk. | |
| */ | |
| #define ELF_ET_DYN_BASE 0x08000000UL | |
| /* | |
| * 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) | |
| #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 | |
| struct linux_binprm; | |
| extern int arch_setup_additional_pages(struct linux_binprm *bprm, | |
| int uses_interp); | |
| #endif |