1 #ifndef __ASMARM_ELF_H
2 #define __ASMARM_ELF_H
3
4 /*
5 * ELF register definitions..
6 */
7
8 #include <asm/ptrace.h>
9 #include <asm/proc/elf.h>
10 #include <asm/procinfo.h>
11
12 typedef unsigned long elf_greg_t;
13 typedef unsigned long elf_freg_t[3];
14
15 #define EM_ARM 40
16 #define EF_ARM_APCS26 0x08
17
18 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
19 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
20
21 typedef struct { void *null; } elf_fpregset_t;
22
23 /*
24 * This is used to ensure we don't load something for the wrong architecture.
25 */
26 #define elf_check_arch(x) ( ((x)->e_machine == EM_ARM) && (ELF_PROC_OK((x))) )
27
28 /*
29 * These are used to set parameters in the core dumps.
30 */
31 #define ELF_CLASS ELFCLASS32
32 #ifdef __ARMEB__
33 #define ELF_DATA ELFDATA2LSB;
34 #else
35 #define ELF_DATA ELFDATA2LSB;
36 #endif
37 #define ELF_ARCH EM_ARM
38
39 #define USE_ELF_CORE_DUMP
40
41 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
42 use of this is to invoke "./ld.so someprog" to test out a new version of
43 the loader. We need to make sure that it is out of the way of the program
44 that it will "exec", and that there is sufficient room for the brk. */
45
46 #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
47
48 /* When the program starts, a1 contains a pointer to a function to be
49 registered with atexit, as per the SVR4 ABI. A value of 0 means we
50 have no such handler. */
51 #define ELF_PLAT_INIT(_r) (_r)->ARM_r0 = 0
52
53 /* This yields a mask that user programs can use to figure out what
54 instruction set this cpu supports. */
55
56 extern unsigned int elf_hwcap;
57 #define ELF_HWCAP (elf_hwcap)
58
59 /* This yields a string that ld.so will use to load implementation
60 specific libraries for optimization. This is more specific in
61 intent than poking at uname or /proc/cpuinfo. */
62
63 /* For now we just provide a fairly general string that describes the
64 processor family. This could be made more specific later if someone
65 implemented optimisations that require it. 26-bit CPUs give you
66 "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
67 supported). 32-bit CPUs give you "v3[lb]" for anything based on an
68 ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
69 core. */
70
71 #define ELF_PLATFORM_SIZE 8
72 extern char elf_platform[];
73 #define ELF_PLATFORM (elf_platform)
74
75 #endif
76
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