include/asm-sparc64/a.out.h

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 1 /* $Id: a.out.h,v 1.6 1999/08/04 07:04:21 jj Exp $ */
 2 #ifndef __SPARC64_A_OUT_H__
 3 #define __SPARC64_A_OUT_H__
 4
 5 #define SPARC_PGSIZE 0x2000/* Thanks to the sun4 architecture... */
 6 #define SEGMENT_SIZE SPARC_PGSIZE/* whee... */
 7
 8 #ifndef __ASSEMBLY__
 9
 10 struct exec {
 11 unsigned char a_dynamic:1;/* A __DYNAMIC is in this image */
 12 unsigned char a_toolversion:7;
 13 unsigned char a_machtype;
 14 unsigned short a_info;
 15 unsigned int a_text;/* length of text, in bytes */
 16 unsigned int a_data;/* length of data, in bytes */
 17 unsigned int a_bss;/* length of bss, in bytes */
 18 unsigned int a_syms;/* length of symbol table, in bytes */
 19 unsigned int a_entry;/* where program begins */
 20 unsigned int a_trsize;
 21 unsigned int a_drsize;
 22 };
 23
 24 #endif __ASSEMBLY__
 25
 26 /* Where in the file does the text information begin? */
 27 #define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
 28
 29 /* Where do the Symbols start? */
 30 #define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \
 31  (x).a_data + (x).a_trsize + \
 32  (x).a_drsize)
 33
 34 /* Where does text segment go in memory after being loaded? */
 35 #define N_TXTADDR(x) (unsigned long)(((N_MAGIC(x) == ZMAGIC) && \
 36  ((x).a_entry < SPARC_PGSIZE)) ? \
 37  0 : SPARC_PGSIZE)
 38
 39 /* And same for the data segment.. */
 40 #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \
 41  (N_TXTADDR(x) + (x).a_text) \
 42  : (unsigned long)(_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
 43
 44 #define N_TRSIZE(a) ((a).a_trsize)
 45 #define N_DRSIZE(a) ((a).a_drsize)
 46 #define N_SYMSIZE(a) ((a).a_syms)
 47
 48 #ifndef __ASSEMBLY__
 49
 50 /*
 51  * Sparc relocation types
 52  */
 53 enum reloc_type
 54 {
 55  RELOC_8,
 56  RELOC_16,
 57  RELOC_32,/* simplest relocs */
 58  RELOC_DISP8,
 59  RELOC_DISP16,
 60  RELOC_DISP32,/* Disp's (pc-rel) */
 61  RELOC_WDISP30,
 62  RELOC_WDISP22,/* SR word disp's */
 63  RELOC_HI22,
 64  RELOC_22,/* SR 22-bit relocs */
 65  RELOC_13,
 66  RELOC_LO10,/* SR 13&10-bit relocs */
 67  RELOC_SFA_BASE,
 68  RELOC_SFA_OFF13,/* SR S.F.A. relocs */
 69  RELOC_BASE10,
 70  RELOC_BASE13,
 71  RELOC_BASE22,/* base_relative pic */
 72  RELOC_PC10,
 73  RELOC_PC22,/* special pc-rel pic */
 74  RELOC_JMP_TBL,/* jmp_tbl_rel in pic */
 75  RELOC_SEGOFF16,/* ShLib offset-in-seg */
 76  RELOC_GLOB_DAT,
 77  RELOC_JMP_SLOT,
 78  RELOC_RELATIVE /* rtld relocs */
 79 };
 80
 81 /*
 82  * Format of a relocation datum.
 83  */
 84 struct relocation_info /* used when header.a_machtype == M_SPARC */
 85 {
 86 unsigned int r_address;/* relocation addr */
 87 unsigned int r_index:24;/* segment index or symbol index */
 88 unsigned int r_extern:1;/* if F, r_index==SEG#; if T, SYM idx */
 89 int r_pad:2;/* <unused> */
 90 enum reloc_type r_type:5;/* type of relocation to perform */
 91 int r_addend;/* addend for relocation value */
 92 };
 93
 94 #define N_RELOCATION_INFO_DECLARED 1
 95
 96 #ifdef __KERNEL__
 97
 98 #define STACK_TOP (current->thread.flags & SPARC_FLAG_32BIT ? 0xf0000000 : 0x80000000000L)
 99
 100 #endif
 101
 102 #endif/* !(__ASSEMBLY__) */
 103
 104 #endif/* !(__SPARC64_A_OUT_H__) */