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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /* * Support for o32 Linux/MIPS ELF binaries. * * Copyright (C) 1999, 2001 Ralf Baechle * Copyright (C) 1999, 2001 Silicon Graphics, Inc. * * Heavily inspired by the 32-bit Sparc compat code which is * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com) * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz) */ #define ELF_ARCH EM_MIPS #define ELF_CLASS ELFCLASS32 #ifdef __MIPSEB__ #define ELF_DATA ELFDATA2MSB; #else /* __MIPSEL__ */ #define ELF_DATA ELFDATA2LSB; #endif /* ELF register definitions */ #define ELF_NGREG 45 #define ELF_NFPREG 33 typedef unsigned int elf_greg_t; typedef elf_greg_t elf_gregset_t[ELF_NGREG]; typedef double elf_fpreg_t; typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; /* * This is used to ensure we don't load something for the wrong architecture. */ #define elf_check_arch(hdr) \ ({ \ int __res = 1; \ struct elfhdr *__h = (hdr); \ \ if (__h->e_machine != EM_MIPS) \ __res = 0; \ if (__h->e_ident[EI_CLASS] != ELFCLASS32) \ __res = 0; \ if ((__h->e_flags & EF_MIPS_ABI2) != 0) \ __res = 0; \ if (((__h->e_flags & EF_MIPS_ABI) != 0) && \ ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \ __res = 0; \ \ __res; \ }) #define TASK32_SIZE 0x7fff8000UL #undef ELF_ET_DYN_BASE #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) #include <asm/processor.h> #include <linux/module.h> #include <linux/config.h> #include <linux/elfcore.h> #include <linux/compat.h> #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 */ __kernel_uid_t pr_uid; __kernel_gid_t 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 u32 #define elf_caddr_t u32 #define init_elf_binfmt init_elf32_binfmt #define jiffies_to_timeval jiffies_to_compat_timeval static __inline__ void jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) { /* * Convert jiffies to nanoseconds and seperate with * one divide. */ u64 nsec = (u64)jiffies * TICK_NSEC; value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_usec); value->tv_usec /= NSEC_PER_USEC; } #undef ELF_CORE_COPY_REGS #define ELF_CORE_COPY_REGS(_dest,_regs) elf32_core_copy_regs(_dest,_regs); void elf32_core_copy_regs(elf_gregset_t _dest, struct pt_regs *_regs) { int i; memset(_dest, 0, sizeof(elf_gregset_t)); /* XXXKW the 6 is from EF_REG0 in gdb/gdb/mips-linux-tdep.c, include/asm-mips/reg.h */ for (i=6; i<38; i++) _dest[i] = (elf_greg_t) _regs->regs[i-6]; _dest[i++] = (elf_greg_t) _regs->lo; _dest[i++] = (elf_greg_t) _regs->hi; _dest[i++] = (elf_greg_t) _regs->cp0_epc; _dest[i++] = (elf_greg_t) _regs->cp0_badvaddr; _dest[i++] = (elf_greg_t) _regs->cp0_status; _dest[i++] = (elf_greg_t) _regs->cp0_cause; } MODULE_DESCRIPTION("Binary format loader for compatibility with o32 Linux/MIPS binaries"); MODULE_AUTHOR("Ralf Baechle (ralf@linux-mips.org)"); #undef MODULE_DESCRIPTION #undef MODULE_AUTHOR #include "../../../fs/binfmt_elf.c" |