[PATCH v7 18/37] nds32: ELF definitions
This patch adds definitions for the ELF format, relocation types, vdso locations and EXEC_PAGESIZE. Signed-off-by: Vincent ChenSigned-off-by: Greentime Hu Acked-by: Arnd Bergmann --- arch/nds32/include/asm/elf.h | 171 +++ arch/nds32/include/uapi/asm/auxvec.h | 12 +++ arch/nds32/include/uapi/asm/param.h | 11 +++ 3 files changed, 194 insertions(+) create mode 100644 arch/nds32/include/asm/elf.h create mode 100644 arch/nds32/include/uapi/asm/auxvec.h create mode 100644 arch/nds32/include/uapi/asm/param.h diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h new file mode 100644 index ..56c479058802 --- /dev/null +++ b/arch/nds32/include/asm/elf.h @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef __ASMNDS32_ELF_H +#define __ASMNDS32_ELF_H + +/* + * ELF register definitions.. + */ + +#include + +typedef unsigned long elf_greg_t; +typedef unsigned long elf_freg_t[3]; + +extern unsigned int elf_hwcap; + +#define EM_NDS32 167 + +#define R_NDS32_NONE 0 +#define R_NDS32_16_RELA19 +#define R_NDS32_32_RELA20 +#define R_NDS32_9_PCREL_RELA 22 +#define R_NDS32_15_PCREL_RELA 23 +#define R_NDS32_17_PCREL_RELA 24 +#define R_NDS32_25_PCREL_RELA 25 +#define R_NDS32_HI20_RELA 26 +#define R_NDS32_LO12S3_RELA27 +#define R_NDS32_LO12S2_RELA28 +#define R_NDS32_LO12S1_RELA29 +#define R_NDS32_LO12S0_RELA30 +#define R_NDS32_SDA15S3_RELA 31 +#define R_NDS32_SDA15S2_RELA 32 +#define R_NDS32_SDA15S1_RELA 33 +#define R_NDS32_SDA15S0_RELA 34 +#define R_NDS32_GOT20 37 +#define R_NDS32_25_PLTREL 38 +#define R_NDS32_COPY 39 +#define R_NDS32_GLOB_DAT 40 +#define R_NDS32_JMP_SLOT 41 +#define R_NDS32_RELATIVE 42 +#define R_NDS32_GOTOFF 43 +#define R_NDS32_GOTPC2044 +#define R_NDS32_GOT_HI20 45 +#define R_NDS32_GOT_LO12 46 +#define R_NDS32_GOTPC_HI20 47 +#define R_NDS32_GOTPC_LO12 48 +#define R_NDS32_GOTOFF_HI2049 +#define R_NDS32_GOTOFF_LO1250 +#define R_NDS32_INSN16 51 +#define R_NDS32_LABEL 52 +#define R_NDS32_LONGCALL1 53 +#define R_NDS32_LONGCALL2 54 +#define R_NDS32_LONGCALL3 55 +#define R_NDS32_LONGJUMP1 56 +#define R_NDS32_LONGJUMP2 57 +#define R_NDS32_LONGJUMP3 58 +#define R_NDS32_LOADSTORE 59 +#define R_NDS32_9_FIXED_RELA 60 +#define R_NDS32_15_FIXED_RELA 61 +#define R_NDS32_17_FIXED_RELA 62 +#define R_NDS32_25_FIXED_RELA 63 +#define R_NDS32_PLTREL_HI2064 +#define R_NDS32_PLTREL_LO1265 +#define R_NDS32_PLT_GOTREL_HI2066 +#define R_NDS32_PLT_GOTREL_LO1267 +#define R_NDS32_LO12S0_ORI_RELA72 +#define R_NDS32_DWARF2_OP1_RELA77 +#define R_NDS32_DWARF2_OP2_RELA78 +#define R_NDS32_DWARF2_LEB_RELA79 +#define R_NDS32_WORD_9_PCREL_RELA 94 +#define R_NDS32_LONGCALL4 107 +#define R_NDS32_RELA_NOP_MIX 192 +#define R_NDS32_RELA_NOP_MAX 255 + +#define ELF_NGREG (sizeof (struct user_pt_regs) / sizeof(elf_greg_t)) +#define ELF_CORE_COPY_REGS(dest, regs) \ + *(struct user_pt_regs *)&(dest) = (regs)->user_regs; + +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Core file format: The core file is written in such a way that gdb + can understand it and provide useful information to the user (under + linux we use the 'trad-core' bfd). There are quite a number of + obstacles to being able to view the contents of the floating point + registers, and until these are solved you will not be able to view the + contents of them. Actually, you can read in the core file and look at + the contents of the user struct to find out what the floating point + registers contain. + The actual file contents are as follows: + UPAGE: 1 page consisting of a user struct that tells gdb what is present + in the file. Directly after this is a copy of the task_struct, which + is currently not used by gdb, but it may come in useful at some point. + All of the registers are stored as part of the upage. The upage should + always be only one page. + DATA: The data area is stored. We use current->end_text to + current->brk to pick up all of the user variables, plus any memory + that may have been malloced. No attempt is made to determine if a page + is demand-zero or if a page is totally unused, we just
[PATCH v7 18/37] nds32: ELF definitions
This patch adds definitions for the ELF format, relocation types, vdso locations and EXEC_PAGESIZE. Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu Acked-by: Arnd Bergmann --- arch/nds32/include/asm/elf.h | 171 +++ arch/nds32/include/uapi/asm/auxvec.h | 12 +++ arch/nds32/include/uapi/asm/param.h | 11 +++ 3 files changed, 194 insertions(+) create mode 100644 arch/nds32/include/asm/elf.h create mode 100644 arch/nds32/include/uapi/asm/auxvec.h create mode 100644 arch/nds32/include/uapi/asm/param.h diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h new file mode 100644 index ..56c479058802 --- /dev/null +++ b/arch/nds32/include/asm/elf.h @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef __ASMNDS32_ELF_H +#define __ASMNDS32_ELF_H + +/* + * ELF register definitions.. + */ + +#include + +typedef unsigned long elf_greg_t; +typedef unsigned long elf_freg_t[3]; + +extern unsigned int elf_hwcap; + +#define EM_NDS32 167 + +#define R_NDS32_NONE 0 +#define R_NDS32_16_RELA19 +#define R_NDS32_32_RELA20 +#define R_NDS32_9_PCREL_RELA 22 +#define R_NDS32_15_PCREL_RELA 23 +#define R_NDS32_17_PCREL_RELA 24 +#define R_NDS32_25_PCREL_RELA 25 +#define R_NDS32_HI20_RELA 26 +#define R_NDS32_LO12S3_RELA27 +#define R_NDS32_LO12S2_RELA28 +#define R_NDS32_LO12S1_RELA29 +#define R_NDS32_LO12S0_RELA30 +#define R_NDS32_SDA15S3_RELA 31 +#define R_NDS32_SDA15S2_RELA 32 +#define R_NDS32_SDA15S1_RELA 33 +#define R_NDS32_SDA15S0_RELA 34 +#define R_NDS32_GOT20 37 +#define R_NDS32_25_PLTREL 38 +#define R_NDS32_COPY 39 +#define R_NDS32_GLOB_DAT 40 +#define R_NDS32_JMP_SLOT 41 +#define R_NDS32_RELATIVE 42 +#define R_NDS32_GOTOFF 43 +#define R_NDS32_GOTPC2044 +#define R_NDS32_GOT_HI20 45 +#define R_NDS32_GOT_LO12 46 +#define R_NDS32_GOTPC_HI20 47 +#define R_NDS32_GOTPC_LO12 48 +#define R_NDS32_GOTOFF_HI2049 +#define R_NDS32_GOTOFF_LO1250 +#define R_NDS32_INSN16 51 +#define R_NDS32_LABEL 52 +#define R_NDS32_LONGCALL1 53 +#define R_NDS32_LONGCALL2 54 +#define R_NDS32_LONGCALL3 55 +#define R_NDS32_LONGJUMP1 56 +#define R_NDS32_LONGJUMP2 57 +#define R_NDS32_LONGJUMP3 58 +#define R_NDS32_LOADSTORE 59 +#define R_NDS32_9_FIXED_RELA 60 +#define R_NDS32_15_FIXED_RELA 61 +#define R_NDS32_17_FIXED_RELA 62 +#define R_NDS32_25_FIXED_RELA 63 +#define R_NDS32_PLTREL_HI2064 +#define R_NDS32_PLTREL_LO1265 +#define R_NDS32_PLT_GOTREL_HI2066 +#define R_NDS32_PLT_GOTREL_LO1267 +#define R_NDS32_LO12S0_ORI_RELA72 +#define R_NDS32_DWARF2_OP1_RELA77 +#define R_NDS32_DWARF2_OP2_RELA78 +#define R_NDS32_DWARF2_LEB_RELA79 +#define R_NDS32_WORD_9_PCREL_RELA 94 +#define R_NDS32_LONGCALL4 107 +#define R_NDS32_RELA_NOP_MIX 192 +#define R_NDS32_RELA_NOP_MAX 255 + +#define ELF_NGREG (sizeof (struct user_pt_regs) / sizeof(elf_greg_t)) +#define ELF_CORE_COPY_REGS(dest, regs) \ + *(struct user_pt_regs *)&(dest) = (regs)->user_regs; + +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Core file format: The core file is written in such a way that gdb + can understand it and provide useful information to the user (under + linux we use the 'trad-core' bfd). There are quite a number of + obstacles to being able to view the contents of the floating point + registers, and until these are solved you will not be able to view the + contents of them. Actually, you can read in the core file and look at + the contents of the user struct to find out what the floating point + registers contain. + The actual file contents are as follows: + UPAGE: 1 page consisting of a user struct that tells gdb what is present + in the file. Directly after this is a copy of the task_struct, which + is currently not used by gdb, but it may come in useful at some point. + All of the registers are stored as part of the upage. The upage should + always be only one page. + DATA: The data area is stored. We use current->end_text to + current->brk to pick up all of the user variables, plus any memory + that may have been malloced. No attempt is made to determine if a page + is demand-zero or if a page is totally unused, we just cover the entire + range. All of the addresses are rounded in