Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels | |
3 | * | |
4 | * Copyright (C) 2000 John Marvin | |
5 | * Copyright (C) 2000 Hewlett Packard Co. | |
6 | * | |
7 | * Heavily inspired from various other efforts to do the same thing | |
8 | * (ia64,sparc64/mips64) | |
9 | */ | |
10 | ||
11 | /* Make sure include/asm-parisc/elf.h does the right thing */ | |
12 | ||
13 | #define ELF_CLASS ELFCLASS32 | |
14 | ||
15 | #define ELF_CORE_COPY_REGS(dst, pt) \ | |
16 | memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \ | |
17 | { int i; \ | |
18 | for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \ | |
19 | for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \ | |
20 | } \ | |
21 | dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \ | |
22 | dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \ | |
23 | dst[44] = (elf_greg_t) pt->sar; dst[45] = (elf_greg_t) pt->iir; \ | |
24 | dst[46] = (elf_greg_t) pt->isr; dst[47] = (elf_greg_t) pt->ior; \ | |
25 | dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \ | |
26 | dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \ | |
27 | dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \ | |
28 | dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \ | |
29 | dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \ | |
30 | dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \ | |
31 | dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \ | |
32 | dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15); | |
33 | ||
34 | ||
35 | typedef unsigned int elf_greg_t; | |
36 | ||
37 | #include <linux/spinlock.h> | |
38 | #include <asm/processor.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/elfcore.h> | |
41 | #include <linux/compat.h> /* struct compat_timeval */ | |
42 | ||
43 | #define elf_prstatus elf_prstatus32 | |
44 | struct elf_prstatus32 | |
45 | { | |
46 | struct elf_siginfo pr_info; /* Info associated with signal */ | |
47 | short pr_cursig; /* Current signal */ | |
48 | unsigned int pr_sigpend; /* Set of pending signals */ | |
49 | unsigned int pr_sighold; /* Set of held signals */ | |
50 | pid_t pr_pid; | |
51 | pid_t pr_ppid; | |
52 | pid_t pr_pgrp; | |
53 | pid_t pr_sid; | |
54 | struct compat_timeval pr_utime; /* User time */ | |
55 | struct compat_timeval pr_stime; /* System time */ | |
56 | struct compat_timeval pr_cutime; /* Cumulative user time */ | |
57 | struct compat_timeval pr_cstime; /* Cumulative system time */ | |
58 | elf_gregset_t pr_reg; /* GP registers */ | |
59 | int pr_fpvalid; /* True if math co-processor being used. */ | |
60 | }; | |
61 | ||
62 | #define elf_prpsinfo elf_prpsinfo32 | |
63 | struct elf_prpsinfo32 | |
64 | { | |
65 | char pr_state; /* numeric process state */ | |
66 | char pr_sname; /* char for pr_state */ | |
67 | char pr_zomb; /* zombie */ | |
68 | char pr_nice; /* nice val */ | |
69 | unsigned int pr_flag; /* flags */ | |
70 | u16 pr_uid; | |
71 | u16 pr_gid; | |
72 | pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; | |
73 | /* Lots missing */ | |
74 | char pr_fname[16]; /* filename of executable */ | |
75 | char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ | |
76 | }; | |
77 | ||
1da177e4 LT |
78 | #define init_elf_binfmt init_elf32_binfmt |
79 | ||
80 | #define ELF_PLATFORM ("PARISC32\0") | |
81 | ||
82 | /* | |
83 | * We should probably use this macro to set a flag somewhere to indicate | |
84 | * this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we | |
85 | * could set a processor dependent flag in the thread_struct. | |
86 | */ | |
87 | ||
cf8e18ea | 88 | #undef SET_PERSONALITY |
0b592682 | 89 | #define SET_PERSONALITY(ex) \ |
df570b9c | 90 | set_thread_flag(TIF_32BIT); \ |
1da177e4 LT |
91 | current->thread.map_base = DEFAULT_MAP_BASE32; \ |
92 | current->thread.task_size = DEFAULT_TASK_SIZE32 \ | |
93 | ||
94 | #undef cputime_to_timeval | |
95 | #define cputime_to_timeval cputime_to_compat_timeval | |
96 | static __inline__ void | |
97 | cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value) | |
98 | { | |
99 | unsigned long jiffies = cputime_to_jiffies(cputime); | |
100 | value->tv_usec = (jiffies % HZ) * (1000000L / HZ); | |
101 | value->tv_sec = jiffies / HZ; | |
102 | } | |
103 | ||
104 | #include "../../../fs/binfmt_elf.c" |