1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _ASM_NIOS2_ELF_H 7*4882a593Smuzhiyun #define _ASM_NIOS2_ELF_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <uapi/asm/elf.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun /* 12*4882a593Smuzhiyun * This is used to ensure we don't load something for the wrong architecture. 13*4882a593Smuzhiyun */ 14*4882a593Smuzhiyun #define elf_check_arch(x) ((x)->e_machine == EM_ALTERA_NIOS2) 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define ELF_PLAT_INIT(_r, load_addr) 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define CORE_DUMP_USE_REGSET 19*4882a593Smuzhiyun #define ELF_EXEC_PAGESIZE 4096 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 22*4882a593Smuzhiyun use of this is to invoke "./ld.so someprog" to test out a new version of 23*4882a593Smuzhiyun the loader. We need to make sure that it is out of the way of the program 24*4882a593Smuzhiyun that it will "exec", and that there is sufficient room for the brk. */ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #define ELF_ET_DYN_BASE 0xD0000000UL 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is 29*4882a593Smuzhiyun now struct_user_regs, they are different) */ 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 32*4882a593Smuzhiyun struct linux_binprm; 33*4882a593Smuzhiyun extern int arch_setup_additional_pages(struct linux_binprm *bprm, 34*4882a593Smuzhiyun int uses_interp); 35*4882a593Smuzhiyun #define ELF_CORE_COPY_REGS(pr_reg, regs) \ 36*4882a593Smuzhiyun { do { \ 37*4882a593Smuzhiyun /* Bleech. */ \ 38*4882a593Smuzhiyun pr_reg[0] = regs->r8; \ 39*4882a593Smuzhiyun pr_reg[1] = regs->r9; \ 40*4882a593Smuzhiyun pr_reg[2] = regs->r10; \ 41*4882a593Smuzhiyun pr_reg[3] = regs->r11; \ 42*4882a593Smuzhiyun pr_reg[4] = regs->r12; \ 43*4882a593Smuzhiyun pr_reg[5] = regs->r13; \ 44*4882a593Smuzhiyun pr_reg[6] = regs->r14; \ 45*4882a593Smuzhiyun pr_reg[7] = regs->r15; \ 46*4882a593Smuzhiyun pr_reg[8] = regs->r1; \ 47*4882a593Smuzhiyun pr_reg[9] = regs->r2; \ 48*4882a593Smuzhiyun pr_reg[10] = regs->r3; \ 49*4882a593Smuzhiyun pr_reg[11] = regs->r4; \ 50*4882a593Smuzhiyun pr_reg[12] = regs->r5; \ 51*4882a593Smuzhiyun pr_reg[13] = regs->r6; \ 52*4882a593Smuzhiyun pr_reg[14] = regs->r7; \ 53*4882a593Smuzhiyun pr_reg[15] = regs->orig_r2; \ 54*4882a593Smuzhiyun pr_reg[16] = regs->ra; \ 55*4882a593Smuzhiyun pr_reg[17] = regs->fp; \ 56*4882a593Smuzhiyun pr_reg[18] = regs->sp; \ 57*4882a593Smuzhiyun pr_reg[19] = regs->gp; \ 58*4882a593Smuzhiyun pr_reg[20] = regs->estatus; \ 59*4882a593Smuzhiyun pr_reg[21] = regs->ea; \ 60*4882a593Smuzhiyun pr_reg[22] = regs->orig_r7; \ 61*4882a593Smuzhiyun { \ 62*4882a593Smuzhiyun struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ 63*4882a593Smuzhiyun pr_reg[23] = sw->r16; \ 64*4882a593Smuzhiyun pr_reg[24] = sw->r17; \ 65*4882a593Smuzhiyun pr_reg[25] = sw->r18; \ 66*4882a593Smuzhiyun pr_reg[26] = sw->r19; \ 67*4882a593Smuzhiyun pr_reg[27] = sw->r20; \ 68*4882a593Smuzhiyun pr_reg[28] = sw->r21; \ 69*4882a593Smuzhiyun pr_reg[29] = sw->r22; \ 70*4882a593Smuzhiyun pr_reg[30] = sw->r23; \ 71*4882a593Smuzhiyun pr_reg[31] = sw->fp; \ 72*4882a593Smuzhiyun pr_reg[32] = sw->gp; \ 73*4882a593Smuzhiyun pr_reg[33] = sw->ra; \ 74*4882a593Smuzhiyun } \ 75*4882a593Smuzhiyun } while (0); } 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun /* This yields a mask that user programs can use to figure out what 78*4882a593Smuzhiyun instruction set this cpu supports. */ 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun #define ELF_HWCAP (0) 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun /* This yields a string that ld.so will use to load implementation 83*4882a593Smuzhiyun specific libraries for optimization. This is more specific in 84*4882a593Smuzhiyun intent than poking at uname or /proc/cpuinfo. */ 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun #define ELF_PLATFORM (NULL) 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun #endif /* _ASM_NIOS2_ELF_H */ 89