1 /*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11 #ifndef _UAPI_ASM_MICROBLAZE_ELF_H
12 #define _UAPI_ASM_MICROBLAZE_ELF_H
13
14 #include <linux/elf-em.h>
15
16 /*
17 * Note there is no "official" ELF designation for Microblaze.
18 * I've snaffled the value from the microblaze binutils source code
19 * /binutils/microblaze/include/elf/microblaze.h
20 */
21 #define EM_MICROBLAZE_OLD 0xbaab
22 #define ELF_ARCH EM_MICROBLAZE
23
24 /*
25 * This is used to ensure we don't load something for the wrong architecture.
26 */
27 #define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \
28 || (x)->e_machine == EM_MICROBLAZE_OLD)
29
30 /*
31 * These are used to set parameters in the core dumps.
32 */
33 #define ELF_CLASS ELFCLASS32
34
35 #ifndef __uClinux__
36
37 /*
38 * ELF register definitions..
39 */
40
41 #include <asm/ptrace.h>
42 #include <asm/byteorder.h>
43
44 #ifndef ELF_GREG_T
45 #define ELF_GREG_T
46 typedef unsigned long elf_greg_t;
47 #endif
48
49 #ifndef ELF_NGREG
50 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
51 #endif
52
53 #ifndef ELF_GREGSET_T
54 #define ELF_GREGSET_T
55 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
56 #endif
57
58 #ifndef ELF_FPREGSET_T
59 #define ELF_FPREGSET_T
60
61 /* TBD */
62 #define ELF_NFPREG 33 /* includes fsr */
63 typedef unsigned long elf_fpreg_t;
64 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
65
66 /* typedef struct user_fpu_struct elf_fpregset_t; */
67 #endif
68
69 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
70 * use of this is to invoke "./ld.so someprog" to test out a new version of
71 * the loader. We need to make sure that it is out of the way of the program
72 * that it will "exec", and that there is sufficient room for the brk.
73 */
74
75 #define ELF_ET_DYN_BASE (0x08000000)
76
77 #ifdef __MICROBLAZEEL__
78 #define ELF_DATA ELFDATA2LSB
79 #else
80 #define ELF_DATA ELFDATA2MSB
81 #endif
82
83 #define ELF_EXEC_PAGESIZE PAGE_SIZE
84
85
86 #define ELF_CORE_COPY_REGS(_dest, _regs) \
87 memcpy((char *) &_dest, (char *) _regs, \
88 sizeof(struct pt_regs));
89
90 /* This yields a mask that user programs can use to figure out what
91 * instruction set this CPU supports. This could be done in user space,
92 * but it's not easy, and we've already done it here.
93 */
94 #define ELF_HWCAP (0)
95
96 /* This yields a string that ld.so will use to load implementation
97 * specific libraries for optimization. This is more specific in
98 * intent than poking at uname or /proc/cpuinfo.
99
100 * For the moment, we have only optimizations for the Intel generations,
101 * but that could change...
102 */
103 #define ELF_PLATFORM (NULL)
104
105 /* Added _f parameter. Is this definition correct: TBD */
106 #define ELF_PLAT_INIT(_r, _f) \
107 do { \
108 _r->r0 = _r->r1 = _r->r2 = _r->r3 = \
109 _r->r4 = _r->r5 = _r->r6 = _r->r7 = \
110 _r->r8 = _r->r9 = _r->r10 = _r->r11 = \
111 _r->r12 = _r->r13 = _r->r14 = _r->r15 = \
112 _r->r16 = _r->r17 = _r->r18 = _r->r19 = \
113 _r->r20 = _r->r21 = _r->r22 = _r->r23 = \
114 _r->r24 = _r->r25 = _r->r26 = _r->r27 = \
115 _r->r28 = _r->r29 = _r->r30 = _r->r31 = \
116 0; \
117 } while (0)
118
119
120 #endif /* __uClinux__ */
121
122 #endif /* _UAPI_ASM_MICROBLAZE_ELF_H */
123
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