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Diffstat (limited to 'arch/nios2/include/asm/elf.h')
| -rw-r--r-- | arch/nios2/include/asm/elf.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/arch/nios2/include/asm/elf.h b/arch/nios2/include/asm/elf.h new file mode 100644 index 0000000000..6060e1ee6e --- /dev/null +++ b/arch/nios2/include/asm/elf.h @@ -0,0 +1,165 @@ +/* + * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#ifndef _ASM_NIOS2_ELF_H +#define _ASM_NIOS2_ELF_H + +/* Relocation types */ +#define R_NIOS2_NONE 0 +#define R_NIOS2_S16 1 +#define R_NIOS2_U16 2 +#define R_NIOS2_PCREL16 3 +#define R_NIOS2_CALL26 4 +#define R_NIOS2_IMM5 5 +#define R_NIOS2_CACHE_OPX 6 +#define R_NIOS2_IMM6 7 +#define R_NIOS2_IMM8 8 +#define R_NIOS2_HI16 9 +#define R_NIOS2_LO16 10 +#define R_NIOS2_HIADJ16 11 +#define R_NIOS2_BFD_RELOC_32 12 +#define R_NIOS2_BFD_RELOC_16 13 +#define R_NIOS2_BFD_RELOC_8 14 +#define R_NIOS2_GPREL 15 +#define R_NIOS2_GNU_VTINHERIT 16 +#define R_NIOS2_GNU_VTENTRY 17 +#define R_NIOS2_UJMP 18 +#define R_NIOS2_CJMP 19 +#define R_NIOS2_CALLR 20 +#define R_NIOS2_ALIGN 21 +/* Keep this the last entry. */ +#define R_NIOS2_NUM 22 + +#include <asm/ptrace.h> + +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef unsigned long elf_fpregset_t; + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == EM_ALTERA_NIOS2) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_ALTERA_NIOS2 + +#define ELF_PLAT_INIT(_r, load_addr) + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +/* 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 0xD0000000UL + +/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is + now struct_user_regs, they are different) */ + +#ifdef CONFIG_MMU +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + do { \ + pr_reg[0] = regs->r8; \ + pr_reg[1] = regs->r9; \ + pr_reg[2] = regs->r10; \ + pr_reg[3] = regs->r11; \ + pr_reg[4] = regs->r12; \ + pr_reg[5] = regs->r13; \ + pr_reg[6] = regs->r14; \ + pr_reg[7] = regs->r15; \ + pr_reg[8] = regs->r1; \ + pr_reg[9] = regs->r2; \ + pr_reg[10] = regs->r3; \ + pr_reg[11] = regs->r4; \ + pr_reg[12] = regs->r5; \ + pr_reg[13] = regs->r6; \ + pr_reg[14] = regs->r7 \ + pr_reg[15] = regs->orig_r2; \ + pr_reg[16] = regs->ra; \ + pr_reg[17] = regs->fp; \ + pr_reg[18] = regs->sp; \ + pr_reg[19] = regs->gp; \ + pr_reg[20] = regs->estatus; \ + pr_reg[21] = regs->ea; \ + pr_reg[22] = regs->orig_r7; \ + { \ + struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ + pr_reg[23] = sw->r16; \ + pr_reg[24] = sw->r17; \ + pr_reg[25] = sw->r18; \ + pr_reg[26] = sw->r19; \ + pr_reg[27] = sw->r20; \ + pr_reg[28] = sw->r21; \ + pr_reg[29] = sw->r22; \ + pr_reg[30] = sw->r23; \ + pr_reg[31] = sw->fp; \ + pr_reg[32] = sw->gp; \ + pr_reg[33] = sw->ra; \ + } \ + } while (0) +#else +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + do { \ + pr_reg[0] = regs->r1; \ + pr_reg[1] = regs->r2; \ + pr_reg[2] = regs->r3; \ + pr_reg[3] = regs->r4; \ + pr_reg[4] = regs->r5; \ + pr_reg[5] = regs->r6; \ + pr_reg[6] = regs->r7; \ + pr_reg[7] = regs->r8; \ + pr_reg[8] = regs->r9; \ + pr_reg[9] = regs->r10; \ + pr_reg[10] = regs->r11; \ + pr_reg[11] = regs->r12; \ + pr_reg[12] = regs->r13; \ + pr_reg[13] = regs->r14; \ + pr_reg[14] = regs->r15; \ + pr_reg[23] = regs->sp; \ + pr_reg[26] = regs->estatus; \ + { \ + struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ + pr_reg[15] = sw->r16; \ + pr_reg[16] = sw->r17; \ + pr_reg[17] = sw->r18; \ + pr_reg[18] = sw->r19; \ + pr_reg[19] = sw->r20; \ + pr_reg[20] = sw->r21; \ + pr_reg[21] = sw->r22; \ + pr_reg[22] = sw->r23; \ + pr_reg[24] = sw->fp; \ + pr_reg[25] = sw->gp; \ + } \ + } while (0) + +#endif /* CONFIG_MMU */ + +/* 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 SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT) + +#endif |