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180 lines
5.9 KiB
180 lines
5.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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// Copyright (C) 2005-2017 Andes Technology Corporation |
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#ifndef __ASMNDS32_ELF_H |
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#define __ASMNDS32_ELF_H |
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/* |
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* ELF register definitions.. |
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*/ |
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#include <asm/ptrace.h> |
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#include <asm/fpu.h> |
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#include <linux/elf-em.h> |
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typedef unsigned long elf_greg_t; |
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typedef unsigned long elf_freg_t[3]; |
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extern unsigned int elf_hwcap; |
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#define R_NDS32_NONE 0 |
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#define R_NDS32_16_RELA 19 |
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#define R_NDS32_32_RELA 20 |
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#define R_NDS32_9_PCREL_RELA 22 |
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#define R_NDS32_15_PCREL_RELA 23 |
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#define R_NDS32_17_PCREL_RELA 24 |
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#define R_NDS32_25_PCREL_RELA 25 |
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#define R_NDS32_HI20_RELA 26 |
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#define R_NDS32_LO12S3_RELA 27 |
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#define R_NDS32_LO12S2_RELA 28 |
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#define R_NDS32_LO12S1_RELA 29 |
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#define R_NDS32_LO12S0_RELA 30 |
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#define R_NDS32_SDA15S3_RELA 31 |
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#define R_NDS32_SDA15S2_RELA 32 |
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#define R_NDS32_SDA15S1_RELA 33 |
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#define R_NDS32_SDA15S0_RELA 34 |
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#define R_NDS32_GOT20 37 |
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#define R_NDS32_25_PLTREL 38 |
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#define R_NDS32_COPY 39 |
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#define R_NDS32_GLOB_DAT 40 |
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#define R_NDS32_JMP_SLOT 41 |
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#define R_NDS32_RELATIVE 42 |
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#define R_NDS32_GOTOFF 43 |
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#define R_NDS32_GOTPC20 44 |
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#define R_NDS32_GOT_HI20 45 |
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#define R_NDS32_GOT_LO12 46 |
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#define R_NDS32_GOTPC_HI20 47 |
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#define R_NDS32_GOTPC_LO12 48 |
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#define R_NDS32_GOTOFF_HI20 49 |
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#define R_NDS32_GOTOFF_LO12 50 |
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#define R_NDS32_INSN16 51 |
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#define R_NDS32_LABEL 52 |
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#define R_NDS32_LONGCALL1 53 |
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#define R_NDS32_LONGCALL2 54 |
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#define R_NDS32_LONGCALL3 55 |
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#define R_NDS32_LONGJUMP1 56 |
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#define R_NDS32_LONGJUMP2 57 |
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#define R_NDS32_LONGJUMP3 58 |
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#define R_NDS32_LOADSTORE 59 |
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#define R_NDS32_9_FIXED_RELA 60 |
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#define R_NDS32_15_FIXED_RELA 61 |
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#define R_NDS32_17_FIXED_RELA 62 |
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#define R_NDS32_25_FIXED_RELA 63 |
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#define R_NDS32_PLTREL_HI20 64 |
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#define R_NDS32_PLTREL_LO12 65 |
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#define R_NDS32_PLT_GOTREL_HI20 66 |
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#define R_NDS32_PLT_GOTREL_LO12 67 |
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#define R_NDS32_LO12S0_ORI_RELA 72 |
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#define R_NDS32_DWARF2_OP1_RELA 77 |
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#define R_NDS32_DWARF2_OP2_RELA 78 |
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#define R_NDS32_DWARF2_LEB_RELA 79 |
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#define R_NDS32_WORD_9_PCREL_RELA 94 |
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#define R_NDS32_LONGCALL4 107 |
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#define R_NDS32_RELA_NOP_MIX 192 |
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#define R_NDS32_RELA_NOP_MAX 255 |
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#define ELF_NGREG (sizeof (struct user_pt_regs) / sizeof(elf_greg_t)) |
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#define ELF_CORE_COPY_REGS(dest, regs) \ |
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*(struct user_pt_regs *)&(dest) = (regs)->user_regs; |
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typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
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/* Core file format: The core file is written in such a way that gdb |
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can understand it and provide useful information to the user (under |
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linux we use the 'trad-core' bfd). There are quite a number of |
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obstacles to being able to view the contents of the floating point |
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registers, and until these are solved you will not be able to view the |
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contents of them. Actually, you can read in the core file and look at |
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the contents of the user struct to find out what the floating point |
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registers contain. |
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The actual file contents are as follows: |
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UPAGE: 1 page consisting of a user struct that tells gdb what is present |
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in the file. Directly after this is a copy of the task_struct, which |
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is currently not used by gdb, but it may come in useful at some point. |
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All of the registers are stored as part of the upage. The upage should |
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always be only one page. |
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DATA: The data area is stored. We use current->end_text to |
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current->brk to pick up all of the user variables, plus any memory |
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that may have been malloced. No attempt is made to determine if a page |
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is demand-zero or if a page is totally unused, we just cover the entire |
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range. All of the addresses are rounded in such a way that an integral |
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number of pages is written. |
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STACK: We need the stack information in order to get a meaningful |
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backtrace. We need to write the data from (esp) to |
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current->start_stack, so we round each of these off in order to be able |
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to write an integer number of pages. |
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The minimum core file size is 3 pages, or 12288 bytes. |
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*/ |
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struct user_fp { |
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unsigned long long fd_regs[32]; |
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unsigned long fpcsr; |
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}; |
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typedef struct user_fp elf_fpregset_t; |
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struct elf32_hdr; |
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#define elf_check_arch(x) ((x)->e_machine == EM_NDS32) |
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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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#ifdef __NDS32_EB__ |
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#define ELF_DATA ELFDATA2MSB |
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#else |
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#define ELF_DATA ELFDATA2LSB |
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#endif |
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#define ELF_ARCH EM_NDS32 |
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#define ELF_EXEC_PAGESIZE PAGE_SIZE |
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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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#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) |
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/* When the program starts, a1 contains a pointer to a function to be |
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registered with atexit, as per the SVR4 ABI. A value of 0 means we |
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have no such handler. */ |
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#define ELF_PLAT_INIT(_r, load_addr) (_r)->uregs[0] = 0 |
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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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#define ELF_HWCAP (elf_hwcap) |
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#ifdef __KERNEL__ |
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#define ELF_PLATFORM (NULL) |
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/* Old NetWinder binaries were compiled in such a way that the iBCS |
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heuristic always trips on them. Until these binaries become uncommon |
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enough not to care, don't trust the `ibcs' flag here. In any case |
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there is no other ELF system currently supported by iBCS. |
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@@ Could print a warning message to encourage users to upgrade. */ |
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#define SET_PERSONALITY(ex) set_personality(PER_LINUX) |
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#endif |
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#if IS_ENABLED(CONFIG_FPU) |
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#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPCSR_INIT) |
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#else |
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#define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0) |
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#endif |
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#define ARCH_DLINFO \ |
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do { \ |
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/* Optional FPU initialization */ \ |
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FPU_AUX_ENT; \ |
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\ |
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NEW_AUX_ENT(AT_SYSINFO_EHDR, \ |
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(elf_addr_t)current->mm->context.vdso); \ |
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} while (0) |
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
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struct linux_binprm; |
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int arch_setup_additional_pages(struct linux_binprm *, int); |
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#endif
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