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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /* * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels * * Copyright (C) 2000 John Marvin * Copyright (C) 2000 Hewlett Packard Co. * * Heavily inspired from various other efforts to do the same thing * (ia64,sparc64/mips64) */ /* Make sure include/asm-parisc/elf.h does the right thing */ #define ELF_CLASS ELFCLASS32 #define ELF_CORE_COPY_REGS(dst, pt) \ memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \ { int i; \ for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \ for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \ } \ dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \ dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \ dst[44] = (elf_greg_t) pt->sar; dst[45] = (elf_greg_t) pt->iir; \ dst[46] = (elf_greg_t) pt->isr; dst[47] = (elf_greg_t) pt->ior; \ dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \ dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \ dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \ dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \ dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \ dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \ dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \ dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15); typedef unsigned int elf_greg_t; #include <linux/spinlock.h> #include <asm/processor.h> #include <linux/module.h> #include <linux/config.h> #include <linux/elfcore.h> #include <linux/compat.h> /* struct compat_timeval */ #define elf_prstatus elf_prstatus32 struct elf_prstatus32 { struct elf_siginfo pr_info; /* Info associated with signal */ short pr_cursig; /* Current signal */ unsigned int pr_sigpend; /* Set of pending signals */ unsigned int pr_sighold; /* Set of held signals */ pid_t pr_pid; pid_t pr_ppid; pid_t pr_pgrp; pid_t pr_sid; struct compat_timeval pr_utime; /* User time */ struct compat_timeval pr_stime; /* System time */ struct compat_timeval pr_cutime; /* Cumulative user time */ struct compat_timeval pr_cstime; /* Cumulative system time */ elf_gregset_t pr_reg; /* GP registers */ int pr_fpvalid; /* True if math co-processor being used. */ }; #define elf_prpsinfo elf_prpsinfo32 struct elf_prpsinfo32 { char pr_state; /* numeric process state */ char pr_sname; /* char for pr_state */ char pr_zomb; /* zombie */ char pr_nice; /* nice val */ unsigned int pr_flag; /* flags */ u16 pr_uid; u16 pr_gid; pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; /* Lots missing */ char pr_fname[16]; /* filename of executable */ char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ }; #define elf_addr_t unsigned int #define init_elf_binfmt init_elf32_binfmt #define ELF_PLATFORM ("PARISC32\0") /* * We should probably use this macro to set a flag somewhere to indicate * this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we * could set a processor dependent flag in the thread_struct. */ #define SET_PERSONALITY(ex, ibcs2) \ current->personality = PER_LINUX32; \ current->thread.map_base = DEFAULT_MAP_BASE32; \ current->thread.task_size = DEFAULT_TASK_SIZE32 \ #define jiffies_to_timeval jiffies_to_compat_timeval static __inline__ void jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) { value->tv_usec = (jiffies % HZ) * (1000000L / HZ); value->tv_sec = jiffies / HZ; } #include "../../../fs/binfmt_elf.c" /* Set up a separate execution domain for ELF32 binaries running * on an ELF64 kernel */ static struct exec_domain parisc32_exec_domain = { .name = "Linux/ELF32", .pers_low = PER_LINUX32, .pers_high = PER_LINUX32, }; static int __init parisc32_exec_init(void) { /* steal the identity signal mappings from the default domain */ parisc32_exec_domain.signal_map = default_exec_domain.signal_map; parisc32_exec_domain.signal_invmap = default_exec_domain.signal_invmap; register_exec_domain(&parisc32_exec_domain); return 0; } __initcall(parisc32_exec_init); |