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116 lines
3.1 KiB
116 lines
3.1 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Support for o32 Linux/MIPS ELF binaries. |
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* Author: Ralf Baechle ([email protected]) |
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* |
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* Copyright (C) 1999, 2001 Ralf Baechle |
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* Copyright (C) 1999, 2001 Silicon Graphics, Inc. |
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* |
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* Heavily inspired by the 32-bit Sparc compat code which is |
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* Copyright (C) 1995, 1996, 1997, 1998 David S. Miller ([email protected]) |
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* Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek ([email protected]) |
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*/ |
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#define ELF_ARCH EM_MIPS |
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#define ELF_CLASS ELFCLASS32 |
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#ifdef __MIPSEB__ |
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#define ELF_DATA ELFDATA2MSB; |
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#else /* __MIPSEL__ */ |
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#define ELF_DATA ELFDATA2LSB; |
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#endif |
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/* ELF register definitions */ |
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#define ELF_NGREG 45 |
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#define ELF_NFPREG 33 |
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typedef unsigned int elf_greg_t; |
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typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
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typedef double elf_fpreg_t; |
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typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; |
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/* |
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* This is used to ensure we don't load something for the wrong architecture. |
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*/ |
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#define elf_check_arch elfo32_check_arch |
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#ifdef CONFIG_KVM_GUEST |
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#define TASK32_SIZE 0x3fff8000UL |
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#else |
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#define TASK32_SIZE 0x7fff8000UL |
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#endif |
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#undef ELF_ET_DYN_BASE |
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#define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) |
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#include <asm/processor.h> |
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#include <linux/elfcore.h> |
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#include <linux/compat.h> |
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#include <linux/math64.h> |
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#define elf_prstatus elf_prstatus32 |
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struct elf_prstatus32 |
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{ |
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struct elf_siginfo pr_info; /* Info associated with signal */ |
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short pr_cursig; /* Current signal */ |
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unsigned int pr_sigpend; /* Set of pending signals */ |
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unsigned int pr_sighold; /* Set of held signals */ |
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pid_t pr_pid; |
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pid_t pr_ppid; |
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pid_t pr_pgrp; |
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pid_t pr_sid; |
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struct old_timeval32 pr_utime; /* User time */ |
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struct old_timeval32 pr_stime; /* System time */ |
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struct old_timeval32 pr_cutime;/* Cumulative user time */ |
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struct old_timeval32 pr_cstime;/* Cumulative system time */ |
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elf_gregset_t pr_reg; /* GP registers */ |
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int pr_fpvalid; /* True if math co-processor being used. */ |
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}; |
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#define elf_prpsinfo elf_prpsinfo32 |
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struct elf_prpsinfo32 |
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{ |
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char pr_state; /* numeric process state */ |
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char pr_sname; /* char for pr_state */ |
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char pr_zomb; /* zombie */ |
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char pr_nice; /* nice val */ |
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unsigned int pr_flag; /* flags */ |
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__kernel_uid_t pr_uid; |
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__kernel_gid_t pr_gid; |
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pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; |
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/* Lots missing */ |
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char pr_fname[16]; /* filename of executable */ |
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char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ |
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}; |
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#define elf_caddr_t u32 |
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#define init_elf_binfmt init_elf32_binfmt |
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#define jiffies_to_timeval jiffies_to_old_timeval32 |
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static inline void |
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jiffies_to_old_timeval32(unsigned long jiffies, struct old_timeval32 *value) |
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{ |
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/* |
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* Convert jiffies to nanoseconds and separate with |
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* one divide. |
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*/ |
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u64 nsec = (u64)jiffies * TICK_NSEC; |
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u32 rem; |
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value->tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem); |
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value->tv_usec = rem / NSEC_PER_USEC; |
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} |
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#undef TASK_SIZE |
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#define TASK_SIZE TASK_SIZE32 |
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#undef ns_to_kernel_old_timeval |
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#define ns_to_kernel_old_timeval ns_to_old_timeval32 |
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/* |
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* Some data types as stored in coredump. |
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*/ |
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#define user_long_t compat_long_t |
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#define user_siginfo_t compat_siginfo_t |
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#define copy_siginfo_to_external copy_siginfo_to_external32 |
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#include "../../../fs/binfmt_elf.c"
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