^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Support for o32 Linux/MIPS ELF binaries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Ralf Baechle (ralf@linux-mips.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 1999, 2001 Ralf Baechle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 1999, 2001 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Heavily inspired by the 32-bit Sparc compat code which is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define ELF_ARCH EM_MIPS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define ELF_CLASS ELFCLASS32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #ifdef __MIPSEB__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define ELF_DATA ELFDATA2MSB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #else /* __MIPSEL__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define ELF_DATA ELFDATA2LSB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /* ELF register definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define ELF_NGREG 45
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define ELF_NFPREG 33
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) typedef unsigned int elf_greg_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) typedef elf_greg_t elf_gregset_t[ELF_NGREG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) typedef double elf_fpreg_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * This is used to ensure we don't load something for the wrong architecture.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define elf_check_arch elfo32_check_arch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #ifdef CONFIG_KVM_GUEST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define TASK32_SIZE 0x3fff8000UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define TASK32_SIZE 0x7fff8000UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #undef ELF_ET_DYN_BASE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <asm/processor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <linux/elfcore.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <linux/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <linux/math64.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define elf_prstatus elf_prstatus32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct elf_prstatus32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct elf_siginfo pr_info; /* Info associated with signal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) short pr_cursig; /* Current signal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) unsigned int pr_sigpend; /* Set of pending signals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned int pr_sighold; /* Set of held signals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) pid_t pr_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) pid_t pr_ppid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) pid_t pr_pgrp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) pid_t pr_sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct old_timeval32 pr_utime; /* User time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct old_timeval32 pr_stime; /* System time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct old_timeval32 pr_cutime;/* Cumulative user time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct old_timeval32 pr_cstime;/* Cumulative system time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) elf_gregset_t pr_reg; /* GP registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int pr_fpvalid; /* True if math co-processor being used. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define elf_prpsinfo elf_prpsinfo32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct elf_prpsinfo32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) char pr_state; /* numeric process state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) char pr_sname; /* char for pr_state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) char pr_zomb; /* zombie */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) char pr_nice; /* nice val */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) unsigned int pr_flag; /* flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) __kernel_uid_t pr_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) __kernel_gid_t pr_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* Lots missing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) char pr_fname[16]; /* filename of executable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define elf_caddr_t u32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define init_elf_binfmt init_elf32_binfmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) #define jiffies_to_timeval jiffies_to_old_timeval32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) jiffies_to_old_timeval32(unsigned long jiffies, struct old_timeval32 *value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * Convert jiffies to nanoseconds and separate with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * one divide.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) u64 nsec = (u64)jiffies * TICK_NSEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u32 rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) value->tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) value->tv_usec = rem / NSEC_PER_USEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #undef TASK_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define TASK_SIZE TASK_SIZE32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #undef ns_to_kernel_old_timeval
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define ns_to_kernel_old_timeval ns_to_old_timeval32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * Some data types as stored in coredump.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define user_long_t compat_long_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define user_siginfo_t compat_siginfo_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define copy_siginfo_to_external copy_siginfo_to_external32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #include "../../../fs/binfmt_elf.c"
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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