2 * Support for n32 Linux/MIPS ELF binaries.
5 * Copyright (C) 1999, 2001 Ralf Baechle
6 * Copyright (C) 1999, 2001 Silicon Graphics, Inc.
8 * Heavily inspired by the 32-bit Sparc compat code which is
13 #define ELF_ARCH EM_MIPS
14 #define ELF_CLASS ELFCLASS32
16 #define ELF_DATA ELFDATA2MSB;
17 #else /* __MIPSEL__ */
18 #define ELF_DATA ELFDATA2LSB;
21 /* ELF register definitions */
25 typedef unsigned long elf_greg_t;
26 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
28 typedef double elf_fpreg_t;
29 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
32 * This is used to ensure we don't load something for the wrong architecture.
34 #define elf_check_arch elfn32_check_arch
36 #define TASK32_SIZE 0x7fff8000UL
37 #undef ELF_ET_DYN_BASE
38 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
40 #include <asm/processor.h>
41 #include <linux/elfcore.h>
42 #include <linux/compat.h>
43 #include <linux/math64.h>
45 #define elf_prstatus elf_prstatus32
48 struct elf_siginfo pr_info; /* Info associated with signal */
49 short pr_cursig; /* Current signal */
50 unsigned int pr_sigpend; /* Set of pending signals */
51 unsigned int pr_sighold; /* Set of held signals */
56 struct compat_timeval pr_utime; /* User time */
57 struct compat_timeval pr_stime; /* System time */
58 struct compat_timeval pr_cutime;/* Cumulative user time */
59 struct compat_timeval pr_cstime;/* Cumulative system time */
60 elf_gregset_t pr_reg; /* GP registers */
61 int pr_fpvalid; /* True if math co-processor being used. */
64 #define elf_prpsinfo elf_prpsinfo32
67 char pr_state; /* numeric process state */
68 char pr_sname; /* char for pr_state */
69 char pr_zomb; /* zombie */
70 char pr_nice; /* nice val */
71 unsigned int pr_flag; /* flags */
72 __kernel_uid_t pr_uid;
73 __kernel_gid_t pr_gid;
74 pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
76 char pr_fname[16]; /* filename of executable */
77 char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
80 #define elf_caddr_t u32
81 #define init_elf_binfmt init_elfn32_binfmt
83 #define jiffies_to_timeval jiffies_to_compat_timeval
84 static __inline__ void
85 jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
88 * Convert jiffies to nanoseconds and separate with
91 u64 nsec = (u64)jiffies * TICK_NSEC;
93 value->tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
94 value->tv_usec = rem / NSEC_PER_USEC;
97 #define ELF_CORE_EFLAGS EF_MIPS_ABI2
100 #define TASK_SIZE TASK_SIZE32
102 #undef cputime_to_timeval
103 #define cputime_to_timeval cputime_to_compat_timeval
104 static __inline__ void
105 cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
107 unsigned long jiffies = cputime_to_jiffies(cputime);
109 value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
110 value->tv_sec = jiffies / HZ;
113 #include "../../../fs/binfmt_elf.c"