1/* $Id: elf.h,v 1.22 2000/07/12 01:27:08 davem Exp $ */ 2#ifndef __ASMSPARC_ELF_H 3#define __ASMSPARC_ELF_H 4 5/* 6 * ELF register definitions.. 7 */ 8 9#include <linux/config.h> 10#include <asm/ptrace.h> 11#include <asm/mbus.h> 12 13/* For the most part we present code dumps in the format 14 * Solaris does. 15 */ 16typedef unsigned long elf_greg_t; 17#define ELF_NGREG 38 18typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 19 20/* Format is: 21 * G0 --> G7 22 * O0 --> O7 23 * L0 --> L7 24 * I0 --> I7 25 * PSR, PC, nPC, Y, WIM, TBR 26 */ 27#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \ 28do { unsigned long *dest = &(__elf_regs[0]); \ 29 struct pt_regs *src = (__pt_regs); \ 30 unsigned long *sp; \ 31 memcpy(&dest[0], &src->u_regs[0], \ 32 sizeof(unsigned long) * 16); \ 33 /* Don't try this at home kids... */ \ 34 set_fs(USER_DS); \ 35 sp = (unsigned long *) src->u_regs[14]; \ 36 copy_from_user(&dest[16], sp, \ 37 sizeof(unsigned long) * 16); \ 38 set_fs(KERNEL_DS); \ 39 dest[32] = src->psr; \ 40 dest[33] = src->pc; \ 41 dest[34] = src->npc; \ 42 dest[35] = src->y; \ 43 dest[36] = dest[37] = 0; /* XXX */ \ 44} while(0); 45 46typedef struct { 47 union { 48 unsigned long pr_regs[32]; 49 double pr_dregs[16]; 50 } pr_fr; 51 unsigned long __unused; 52 unsigned long pr_fsr; 53 unsigned char pr_qcnt; 54 unsigned char pr_q_entrysize; 55 unsigned char pr_en; 56 unsigned int pr_q[64]; 57} elf_fpregset_t; 58 59/* 60 * This is used to ensure we don't load something for the wrong architecture. 61 */ 62#define elf_check_arch(x) ((x)->e_machine == EM_SPARC) 63 64/* 65 * These are used to set parameters in the core dumps. 66 */ 67#define ELF_ARCH EM_SPARC 68#define ELF_CLASS ELFCLASS32 69#define ELF_DATA ELFDATA2MSB 70 71#define USE_ELF_CORE_DUMP 72#ifndef CONFIG_SUN4 73#define ELF_EXEC_PAGESIZE 4096 74#else 75#define ELF_EXEC_PAGESIZE 8192 76#endif 77 78 79/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 80 use of this is to invoke "./ld.so someprog" to test out a new version of 81 the loader. We need to make sure that it is out of the way of the program 82 that it will "exec", and that there is sufficient room for the brk. */ 83 84#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) 85 86/* This yields a mask that user programs can use to figure out what 87 instruction set this cpu supports. This can NOT be done in userspace 88 on Sparc. */ 89 90/* Sun4c has none of the capabilities, most sun4m's have them all. 91 * XXX This is gross, set some global variable at boot time. -DaveM 92 */ 93#define ELF_HWCAP ((ARCH_SUN4C_SUN4) ? 0 : \ 94 (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \ 95 HWCAP_SPARC_SWAP | \ 96 ((srmmu_modtype != Cypress && \ 97 srmmu_modtype != Cypress_vE && \ 98 srmmu_modtype != Cypress_vD) ? \ 99 HWCAP_SPARC_MULDIV : 0))) 100 101/* This yields a string that ld.so will use to load implementation 102 specific libraries for optimization. This is more specific in 103 intent than poking at uname or /proc/cpuinfo. */ 104 105#define ELF_PLATFORM (NULL) 106 107#ifdef __KERNEL__ 108#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) 109#endif 110 111#endif /* !(__ASMSPARC_ELF_H) */ 112