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216 lines
5.6 KiB
216 lines
5.6 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* ELF definitions for the Hexagon architecture |
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* |
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* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. |
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*/ |
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#ifndef __ASM_ELF_H |
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#define __ASM_ELF_H |
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#include <asm/ptrace.h> |
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#include <asm/user.h> |
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#include <linux/elf-em.h> |
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struct elf32_hdr; |
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/* |
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* ELF header e_flags defines. |
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*/ |
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/* should have stuff like "CPU type" and maybe "ABI version", etc */ |
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/* Hexagon relocations */ |
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/* V2 */ |
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#define R_HEXAGON_NONE 0 |
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#define R_HEXAGON_B22_PCREL 1 |
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#define R_HEXAGON_B15_PCREL 2 |
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#define R_HEXAGON_B7_PCREL 3 |
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#define R_HEXAGON_LO16 4 |
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#define R_HEXAGON_HI16 5 |
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#define R_HEXAGON_32 6 |
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#define R_HEXAGON_16 7 |
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#define R_HEXAGON_8 8 |
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#define R_HEXAGON_GPREL16_0 9 |
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#define R_HEXAGON_GPREL16_1 10 |
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#define R_HEXAGON_GPREL16_2 11 |
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#define R_HEXAGON_GPREL16_3 12 |
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#define R_HEXAGON_HL16 13 |
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/* V3 */ |
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#define R_HEXAGON_B13_PCREL 14 |
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/* V4 */ |
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#define R_HEXAGON_B9_PCREL 15 |
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/* V4 (extenders) */ |
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#define R_HEXAGON_B32_PCREL_X 16 |
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#define R_HEXAGON_32_6_X 17 |
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/* V4 (extended) */ |
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#define R_HEXAGON_B22_PCREL_X 18 |
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#define R_HEXAGON_B15_PCREL_X 19 |
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#define R_HEXAGON_B13_PCREL_X 20 |
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#define R_HEXAGON_B9_PCREL_X 21 |
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#define R_HEXAGON_B7_PCREL_X 22 |
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#define R_HEXAGON_16_X 23 |
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#define R_HEXAGON_12_X 24 |
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#define R_HEXAGON_11_X 25 |
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#define R_HEXAGON_10_X 26 |
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#define R_HEXAGON_9_X 27 |
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#define R_HEXAGON_8_X 28 |
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#define R_HEXAGON_7_X 29 |
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#define R_HEXAGON_6_X 30 |
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/* V2 PIC */ |
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#define R_HEXAGON_32_PCREL 31 |
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#define R_HEXAGON_COPY 32 |
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#define R_HEXAGON_GLOB_DAT 33 |
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#define R_HEXAGON_JMP_SLOT 34 |
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#define R_HEXAGON_RELATIVE 35 |
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#define R_HEXAGON_PLT_B22_PCREL 36 |
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#define R_HEXAGON_GOTOFF_LO16 37 |
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#define R_HEXAGON_GOTOFF_HI16 38 |
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#define R_HEXAGON_GOTOFF_32 39 |
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#define R_HEXAGON_GOT_LO16 40 |
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#define R_HEXAGON_GOT_HI16 41 |
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#define R_HEXAGON_GOT_32 42 |
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#define R_HEXAGON_GOT_16 43 |
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/* |
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* ELF register definitions.. |
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*/ |
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typedef unsigned long elf_greg_t; |
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typedef struct user_regs_struct elf_gregset_t; |
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#define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long)) |
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/* Placeholder */ |
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typedef unsigned long elf_fpregset_t; |
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/* |
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* Bypass the whole "regsets" thing for now and use the define. |
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*/ |
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#if CONFIG_HEXAGON_ARCH_VERSION >= 4 |
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#define CS_COPYREGS(DEST,REGS) \ |
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do {\ |
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DEST.cs0 = REGS->cs0;\ |
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DEST.cs1 = REGS->cs1;\ |
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} while (0) |
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#else |
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#define CS_COPYREGS(DEST,REGS) |
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#endif |
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#define ELF_CORE_COPY_REGS(DEST, REGS) \ |
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do { \ |
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DEST.r0 = REGS->r00; \ |
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DEST.r1 = REGS->r01; \ |
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DEST.r2 = REGS->r02; \ |
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DEST.r3 = REGS->r03; \ |
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DEST.r4 = REGS->r04; \ |
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DEST.r5 = REGS->r05; \ |
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DEST.r6 = REGS->r06; \ |
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DEST.r7 = REGS->r07; \ |
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DEST.r8 = REGS->r08; \ |
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DEST.r9 = REGS->r09; \ |
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DEST.r10 = REGS->r10; \ |
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DEST.r11 = REGS->r11; \ |
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DEST.r12 = REGS->r12; \ |
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DEST.r13 = REGS->r13; \ |
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DEST.r14 = REGS->r14; \ |
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DEST.r15 = REGS->r15; \ |
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DEST.r16 = REGS->r16; \ |
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DEST.r17 = REGS->r17; \ |
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DEST.r18 = REGS->r18; \ |
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DEST.r19 = REGS->r19; \ |
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DEST.r20 = REGS->r20; \ |
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DEST.r21 = REGS->r21; \ |
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DEST.r22 = REGS->r22; \ |
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DEST.r23 = REGS->r23; \ |
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DEST.r24 = REGS->r24; \ |
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DEST.r25 = REGS->r25; \ |
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DEST.r26 = REGS->r26; \ |
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DEST.r27 = REGS->r27; \ |
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DEST.r28 = REGS->r28; \ |
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DEST.r29 = pt_psp(REGS); \ |
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DEST.r30 = REGS->r30; \ |
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DEST.r31 = REGS->r31; \ |
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DEST.sa0 = REGS->sa0; \ |
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DEST.lc0 = REGS->lc0; \ |
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DEST.sa1 = REGS->sa1; \ |
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DEST.lc1 = REGS->lc1; \ |
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DEST.m0 = REGS->m0; \ |
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DEST.m1 = REGS->m1; \ |
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DEST.usr = REGS->usr; \ |
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DEST.p3_0 = REGS->preds; \ |
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DEST.gp = REGS->gp; \ |
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DEST.ugp = REGS->ugp; \ |
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CS_COPYREGS(DEST,REGS); \ |
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DEST.pc = pt_elr(REGS); \ |
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DEST.cause = pt_cause(REGS); \ |
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DEST.badva = pt_badva(REGS); \ |
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} while (0); |
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/* |
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* This is used to ensure we don't load something for the wrong architecture. |
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* Checks the machine and ABI type. |
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*/ |
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#define elf_check_arch(hdr) ((hdr)->e_machine == EM_HEXAGON) |
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/* |
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* These are used to set parameters in the core dumps. |
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*/ |
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#define ELF_CLASS ELFCLASS32 |
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#define ELF_DATA ELFDATA2LSB |
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#define ELF_ARCH EM_HEXAGON |
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#if CONFIG_HEXAGON_ARCH_VERSION == 2 |
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#define ELF_CORE_EFLAGS 0x1 |
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#endif |
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#if CONFIG_HEXAGON_ARCH_VERSION == 3 |
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#define ELF_CORE_EFLAGS 0x2 |
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#endif |
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#if CONFIG_HEXAGON_ARCH_VERSION == 4 |
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#define ELF_CORE_EFLAGS 0x3 |
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#endif |
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/* |
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* Some architectures have ld.so set up a pointer to a function |
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* to be registered using atexit, to facilitate cleanup. So that |
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* static executables will be well-behaved, we would null the register |
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* in question here, in the pt_regs structure passed. For now, |
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* leave it a null macro. |
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*/ |
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#define ELF_PLAT_INIT(regs, load_addr) do { } while (0) |
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#define CORE_DUMP_USE_REGSET |
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/* Hrm is this going to cause problems for changing PAGE_SIZE? */ |
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#define ELF_EXEC_PAGESIZE PAGE_SIZE |
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/* |
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* This is the location that an ET_DYN program is loaded if exec'ed. Typical |
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* use of this is to invoke "./ld.so someprog" to test out a new version of |
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* the loader. We need to make sure that it is out of the way of the program |
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* that it will "exec", and that there is sufficient room for the brk. |
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*/ |
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#define ELF_ET_DYN_BASE 0x08000000UL |
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/* |
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* This yields a mask that user programs can use to figure out what |
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* instruction set this cpu supports. |
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*/ |
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#define ELF_HWCAP (0) |
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/* |
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* This yields a string that ld.so will use to load implementation |
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* specific libraries for optimization. This is more specific in |
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* intent than poking at uname or /proc/cpuinfo. |
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*/ |
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#define ELF_PLATFORM (NULL) |
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
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struct linux_binprm; |
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extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
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int uses_interp); |
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#endif
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