| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> |
| 4 | */ |
| 5 | |
| 6 | #ifndef _ASM_NIOS2_ELF_H |
| 7 | #define _ASM_NIOS2_ELF_H |
| 8 | |
| 9 | #include <uapi/asm/elf.h> |
| 10 | |
| 11 | /* |
| 12 | * This is used to ensure we don't load something for the wrong architecture. |
| 13 | */ |
| 14 | #define elf_check_arch(x) ((x)->e_machine == EM_ALTERA_NIOS2) |
| 15 | |
| 16 | #define ELF_PLAT_INIT(_r, load_addr) |
| 17 | |
| 18 | #define CORE_DUMP_USE_REGSET |
| 19 | #define ELF_EXEC_PAGESIZE 4096 |
| 20 | |
| 21 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical |
| 22 | use of this is to invoke "./ld.so someprog" to test out a new version of |
| 23 | the loader. We need to make sure that it is out of the way of the program |
| 24 | that it will "exec", and that there is sufficient room for the brk. */ |
| 25 | |
| 26 | #define ELF_ET_DYN_BASE 0xD0000000UL |
| 27 | |
| 28 | /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is |
| 29 | now struct_user_regs, they are different) */ |
| 30 | |
| 31 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
| 32 | struct linux_binprm; |
| 33 | extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
| 34 | int uses_interp); |
| 35 | #define ELF_CORE_COPY_REGS(pr_reg, regs) \ |
| 36 | { do { \ |
| 37 | /* Bleech. */ \ |
| 38 | pr_reg[0] = regs->r8; \ |
| 39 | pr_reg[1] = regs->r9; \ |
| 40 | pr_reg[2] = regs->r10; \ |
| 41 | pr_reg[3] = regs->r11; \ |
| 42 | pr_reg[4] = regs->r12; \ |
| 43 | pr_reg[5] = regs->r13; \ |
| 44 | pr_reg[6] = regs->r14; \ |
| 45 | pr_reg[7] = regs->r15; \ |
| 46 | pr_reg[8] = regs->r1; \ |
| 47 | pr_reg[9] = regs->r2; \ |
| 48 | pr_reg[10] = regs->r3; \ |
| 49 | pr_reg[11] = regs->r4; \ |
| 50 | pr_reg[12] = regs->r5; \ |
| 51 | pr_reg[13] = regs->r6; \ |
| 52 | pr_reg[14] = regs->r7; \ |
| 53 | pr_reg[15] = regs->orig_r2; \ |
| 54 | pr_reg[16] = regs->ra; \ |
| 55 | pr_reg[17] = regs->fp; \ |
| 56 | pr_reg[18] = regs->sp; \ |
| 57 | pr_reg[19] = regs->gp; \ |
| 58 | pr_reg[20] = regs->estatus; \ |
| 59 | pr_reg[21] = regs->ea; \ |
| 60 | pr_reg[22] = regs->orig_r7; \ |
| 61 | { \ |
| 62 | struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ |
| 63 | pr_reg[23] = sw->r16; \ |
| 64 | pr_reg[24] = sw->r17; \ |
| 65 | pr_reg[25] = sw->r18; \ |
| 66 | pr_reg[26] = sw->r19; \ |
| 67 | pr_reg[27] = sw->r20; \ |
| 68 | pr_reg[28] = sw->r21; \ |
| 69 | pr_reg[29] = sw->r22; \ |
| 70 | pr_reg[30] = sw->r23; \ |
| 71 | pr_reg[31] = sw->fp; \ |
| 72 | pr_reg[32] = sw->gp; \ |
| 73 | pr_reg[33] = sw->ra; \ |
| 74 | } \ |
| 75 | } while (0); } |
| 76 | |
| 77 | /* This yields a mask that user programs can use to figure out what |
| 78 | instruction set this cpu supports. */ |
| 79 | |
| 80 | #define ELF_HWCAP (0) |
| 81 | |
| 82 | /* This yields a string that ld.so will use to load implementation |
| 83 | specific libraries for optimization. This is more specific in |
| 84 | intent than poking at uname or /proc/cpuinfo. */ |
| 85 | |
| 86 | #define ELF_PLATFORM (NULL) |
| 87 | |
| 88 | #endif /* _ASM_NIOS2_ELF_H */ |