diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/kernel/binfmt_elfn32.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/kernel/binfmt_elfn32.c')
-rw-r--r-- | arch/mips/kernel/binfmt_elfn32.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c new file mode 100644 index 000000000000..ed47041f3030 --- /dev/null +++ b/arch/mips/kernel/binfmt_elfn32.c | |||
@@ -0,0 +1,119 @@ | |||
1 | /* | ||
2 | * Support for n32 Linux/MIPS ELF binaries. | ||
3 | * | ||
4 | * Copyright (C) 1999, 2001 Ralf Baechle | ||
5 | * Copyright (C) 1999, 2001 Silicon Graphics, Inc. | ||
6 | * | ||
7 | * Heavily inspired by the 32-bit Sparc compat code which is | ||
8 | * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com) | ||
9 | * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz) | ||
10 | */ | ||
11 | |||
12 | #define ELF_ARCH EM_MIPS | ||
13 | #define ELF_CLASS ELFCLASS32 | ||
14 | #ifdef __MIPSEB__ | ||
15 | #define ELF_DATA ELFDATA2MSB; | ||
16 | #else /* __MIPSEL__ */ | ||
17 | #define ELF_DATA ELFDATA2LSB; | ||
18 | #endif | ||
19 | |||
20 | /* ELF register definitions */ | ||
21 | #define ELF_NGREG 45 | ||
22 | #define ELF_NFPREG 33 | ||
23 | |||
24 | typedef unsigned long elf_greg_t; | ||
25 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | ||
26 | |||
27 | typedef double elf_fpreg_t; | ||
28 | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | ||
29 | |||
30 | /* | ||
31 | * This is used to ensure we don't load something for the wrong architecture. | ||
32 | */ | ||
33 | #define elf_check_arch(hdr) \ | ||
34 | ({ \ | ||
35 | int __res = 1; \ | ||
36 | struct elfhdr *__h = (hdr); \ | ||
37 | \ | ||
38 | if (__h->e_machine != EM_MIPS) \ | ||
39 | __res = 0; \ | ||
40 | if (__h->e_ident[EI_CLASS] != ELFCLASS32) \ | ||
41 | __res = 0; \ | ||
42 | if (((__h->e_flags & EF_MIPS_ABI2) == 0) || \ | ||
43 | ((__h->e_flags & EF_MIPS_ABI) != 0)) \ | ||
44 | __res = 0; \ | ||
45 | \ | ||
46 | __res; \ | ||
47 | }) | ||
48 | |||
49 | #define TASK32_SIZE 0x7fff8000UL | ||
50 | #undef ELF_ET_DYN_BASE | ||
51 | #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) | ||
52 | |||
53 | #include <asm/processor.h> | ||
54 | #include <linux/module.h> | ||
55 | #include <linux/config.h> | ||
56 | #include <linux/elfcore.h> | ||
57 | #include <linux/compat.h> | ||
58 | |||
59 | #define elf_prstatus elf_prstatus32 | ||
60 | struct elf_prstatus32 | ||
61 | { | ||
62 | struct elf_siginfo pr_info; /* Info associated with signal */ | ||
63 | short pr_cursig; /* Current signal */ | ||
64 | unsigned int pr_sigpend; /* Set of pending signals */ | ||
65 | unsigned int pr_sighold; /* Set of held signals */ | ||
66 | pid_t pr_pid; | ||
67 | pid_t pr_ppid; | ||
68 | pid_t pr_pgrp; | ||
69 | pid_t pr_sid; | ||
70 | struct compat_timeval pr_utime; /* User time */ | ||
71 | struct compat_timeval pr_stime; /* System time */ | ||
72 | struct compat_timeval pr_cutime;/* Cumulative user time */ | ||
73 | struct compat_timeval pr_cstime;/* Cumulative system time */ | ||
74 | elf_gregset_t pr_reg; /* GP registers */ | ||
75 | int pr_fpvalid; /* True if math co-processor being used. */ | ||
76 | }; | ||
77 | |||
78 | #define elf_prpsinfo elf_prpsinfo32 | ||
79 | struct elf_prpsinfo32 | ||
80 | { | ||
81 | char pr_state; /* numeric process state */ | ||
82 | char pr_sname; /* char for pr_state */ | ||
83 | char pr_zomb; /* zombie */ | ||
84 | char pr_nice; /* nice val */ | ||
85 | unsigned int pr_flag; /* flags */ | ||
86 | __kernel_uid_t pr_uid; | ||
87 | __kernel_gid_t pr_gid; | ||
88 | pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; | ||
89 | /* Lots missing */ | ||
90 | char pr_fname[16]; /* filename of executable */ | ||
91 | char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ | ||
92 | }; | ||
93 | |||
94 | #define elf_addr_t u32 | ||
95 | #define elf_caddr_t u32 | ||
96 | #define init_elf_binfmt init_elfn32_binfmt | ||
97 | |||
98 | #define jiffies_to_timeval jiffies_to_compat_timeval | ||
99 | static __inline__ void | ||
100 | jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) | ||
101 | { | ||
102 | /* | ||
103 | * Convert jiffies to nanoseconds and seperate with | ||
104 | * one divide. | ||
105 | */ | ||
106 | u64 nsec = (u64)jiffies * TICK_NSEC; | ||
107 | value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_usec); | ||
108 | value->tv_usec /= NSEC_PER_USEC; | ||
109 | } | ||
110 | |||
111 | #define ELF_CORE_EFLAGS EF_MIPS_ABI2 | ||
112 | |||
113 | MODULE_DESCRIPTION("Binary format loader for compatibility with n32 Linux/MIPS binaries"); | ||
114 | MODULE_AUTHOR("Ralf Baechle (ralf@linux-mips.org)"); | ||
115 | |||
116 | #undef MODULE_DESCRIPTION | ||
117 | #undef MODULE_AUTHOR | ||
118 | |||
119 | #include "../../../fs/binfmt_elf.c" | ||