File: /usr/src/linux/include/asm-cris/elf.h

1     #ifndef __ASMCRIS_ELF_H
2     #define __ASMCRIS_ELF_H
3     
4     /*
5      * ELF register definitions..
6      */
7     
8     #include <asm/ptrace.h>
9     
10     typedef unsigned long elf_greg_t;
11     
12     /* These probably need fixing.  */
13     #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
14     typedef elf_greg_t elf_gregset_t[ELF_NGREG];
15     
16     /* A placeholder; CRIS does not have any fp regs.  */
17     typedef unsigned long elf_fpregset_t;
18     
19     /*
20      * This is used to ensure we don't load something for the wrong architecture.
21      */
22     #define elf_check_arch(x) ( (x)->e_machine == EM_CRIS )
23     
24     /*
25      * These are used to set parameters in the core dumps.
26      */
27     #define ELF_CLASS	ELFCLASS32
28     #define ELF_DATA	ELFDATA2LSB;
29     #define ELF_ARCH	EM_CRIS
30     
31     	/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
32     	   starts (a register; assume first param register for CRIS)
33     	   contains a pointer to a function which might be
34     	   registered using `atexit'.  This provides a mean for the
35     	   dynamic linker to call DT_FINI functions for shared libraries
36     	   that have been loaded before the code runs.
37     
38     	   A value of 0 tells we have no such handler.  */
39     	
40     	/* Explicitly set registers to 0 to increase determinism.  */
41     #define ELF_PLAT_INIT(_r)	do { \
42     	(_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \
43     	(_r)->r9 = 0;  (_r)->r8 = 0;  (_r)->r7 = 0;  (_r)->r6 = 0;  \
44     	(_r)->r5 = 0;  (_r)->r4 = 0;  (_r)->r3 = 0;  (_r)->r2 = 0;  \
45     	(_r)->r1 = 0;  (_r)->r0 = 0;  (_r)->mof = 0; (_r)->srp = 0; \
46     } while (0)
47     
48     #undef USE_ELF_CORE_DUMP
49     #define ELF_EXEC_PAGESIZE	8192
50     
51     /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
52        use of this is to invoke "./ld.so someprog" to test out a new version of
53        the loader.  We need to make sure that it is out of the way of the program
54        that it will "exec", and that there is sufficient room for the brk.  */
55     
56     #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
57     
58     /* This yields a mask that user programs can use to figure out what
59        instruction set this CPU supports.  This could be done in user space,
60        but it's not easy, and we've already done it here.  */
61     
62     #define ELF_HWCAP       (0)
63     
64     /* This yields a string that ld.so will use to load implementation
65        specific libraries for optimization.  This is more specific in
66        intent than poking at uname or /proc/cpuinfo.
67     */
68     
69     #define ELF_PLATFORM  (NULL)
70     
71     #ifdef __KERNEL__
72     #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
73     #endif
74     
75     #endif
76