2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
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
11 #ifndef _ASM_MICROBLAZE_ELF_H
12 #define _ASM_MICROBLAZE_ELF_H
15 * Note there is no "official" ELF designation for Microblaze.
16 * I've snaffled the value from the microblaze binutils source code
17 * /binutils/microblaze/include/elf/microblaze.h
19 #define EM_MICROBLAZE 189
20 #define EM_MICROBLAZE_OLD 0xbaab
21 #define ELF_ARCH EM_MICROBLAZE
24 * This is used to ensure we don't load something for the wrong architecture.
26 #define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \
27 || (x)->e_machine == EM_MICROBLAZE_OLD)
30 * These are used to set parameters in the core dumps.
32 #define ELF_CLASS ELFCLASS32
37 * ELF register definitions..
40 #include <asm/ptrace.h>
41 #include <asm/byteorder.h>
45 typedef unsigned long elf_greg_t;
49 #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
54 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
57 #ifndef ELF_FPREGSET_T
58 #define ELF_FPREGSET_T
61 #define ELF_NFPREG 33 /* includes fsr */
62 typedef unsigned long elf_fpreg_t;
63 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
65 /* typedef struct user_fpu_struct elf_fpregset_t; */
68 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
69 * use of this is to invoke "./ld.so someprog" to test out a new version of
70 * the loader. We need to make sure that it is out of the way of the program
71 * that it will "exec", and that there is sufficient room for the brk.
74 #define ELF_ET_DYN_BASE (0x08000000)
76 #ifdef __MICROBLAZEEL__
77 #define ELF_DATA ELFDATA2LSB
79 #define ELF_DATA ELFDATA2MSB
82 #define ELF_EXEC_PAGESIZE PAGE_SIZE
85 #define ELF_CORE_COPY_REGS(_dest, _regs) \
86 memcpy((char *) &_dest, (char *) _regs, \
87 sizeof(struct pt_regs));
89 /* This yields a mask that user programs can use to figure out what
90 * instruction set this CPU supports. This could be done in user space,
91 * but it's not easy, and we've already done it here.
95 /* This yields a string that ld.so will use to load implementation
96 * specific libraries for optimization. This is more specific in
97 * intent than poking at uname or /proc/cpuinfo.
99 * For the moment, we have only optimizations for the Intel generations,
100 * but that could change...
102 #define ELF_PLATFORM (NULL)
104 /* Added _f parameter. Is this definition correct: TBD */
105 #define ELF_PLAT_INIT(_r, _f) \
107 _r->r1 = _r->r1 = _r->r2 = _r->r3 = \
108 _r->r4 = _r->r5 = _r->r6 = _r->r7 = \
109 _r->r8 = _r->r9 = _r->r10 = _r->r11 = \
110 _r->r12 = _r->r13 = _r->r14 = _r->r15 = \
111 _r->r16 = _r->r17 = _r->r18 = _r->r19 = \
112 _r->r20 = _r->r21 = _r->r22 = _r->r23 = \
113 _r->r24 = _r->r25 = _r->r26 = _r->r27 = \
114 _r->r28 = _r->r29 = _r->r30 = _r->r31 = \
119 #define SET_PERSONALITY(ex) \
120 set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))
123 #endif /* __uClinux__ */
125 #endif /* _ASM_MICROBLAZE_ELF_H */