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1.1 ! root 1: /* $Id: a.out.h,v 1.13 2000/01/09 10:46:53 anton Exp $ */ ! 2: #ifndef __SPARC_A_OUT_H__ ! 3: #define __SPARC_A_OUT_H__ ! 4: ! 5: #define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */ ! 6: #define SEGMENT_SIZE SPARC_PGSIZE /* whee... */ ! 7: ! 8: struct exec { ! 9: unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */ ! 10: unsigned char a_toolversion:7; ! 11: unsigned char a_machtype; ! 12: unsigned short a_info; ! 13: unsigned long a_text; /* length of text, in bytes */ ! 14: unsigned long a_data; /* length of data, in bytes */ ! 15: unsigned long a_bss; /* length of bss, in bytes */ ! 16: unsigned long a_syms; /* length of symbol table, in bytes */ ! 17: unsigned long a_entry; /* where program begins */ ! 18: unsigned long a_trsize; ! 19: unsigned long a_drsize; ! 20: }; ! 21: ! 22: /* Where in the file does the text information begin? */ ! 23: #define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec)) ! 24: ! 25: /* Where do the Symbols start? */ ! 26: #define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \ ! 27: (x).a_data + (x).a_trsize + \ ! 28: (x).a_drsize) ! 29: ! 30: /* Where does text segment go in memory after being loaded? */ ! 31: #define N_TXTADDR(x) (((N_MAGIC(x) == ZMAGIC) && \ ! 32: ((x).a_entry < SPARC_PGSIZE)) ? \ ! 33: 0 : SPARC_PGSIZE) ! 34: ! 35: /* And same for the data segment.. */ ! 36: #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \ ! 37: (N_TXTADDR(x) + (x).a_text) \ ! 38: : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) ! 39: ! 40: #define N_TRSIZE(a) ((a).a_trsize) ! 41: #define N_DRSIZE(a) ((a).a_drsize) ! 42: #define N_SYMSIZE(a) ((a).a_syms) ! 43: ! 44: /* ! 45: * Sparc relocation types ! 46: */ ! 47: enum reloc_type ! 48: { ! 49: RELOC_8, ! 50: RELOC_16, ! 51: RELOC_32, /* simplest relocs */ ! 52: RELOC_DISP8, ! 53: RELOC_DISP16, ! 54: RELOC_DISP32, /* Disp's (pc-rel) */ ! 55: RELOC_WDISP30, ! 56: RELOC_WDISP22, /* SR word disp's */ ! 57: RELOC_HI22, ! 58: RELOC_22, /* SR 22-bit relocs */ ! 59: RELOC_13, ! 60: RELOC_LO10, /* SR 13&10-bit relocs */ ! 61: RELOC_SFA_BASE, ! 62: RELOC_SFA_OFF13, /* SR S.F.A. relocs */ ! 63: RELOC_BASE10, ! 64: RELOC_BASE13, ! 65: RELOC_BASE22, /* base_relative pic */ ! 66: RELOC_PC10, ! 67: RELOC_PC22, /* special pc-rel pic */ ! 68: RELOC_JMP_TBL, /* jmp_tbl_rel in pic */ ! 69: RELOC_SEGOFF16, /* ShLib offset-in-seg */ ! 70: RELOC_GLOB_DAT, ! 71: RELOC_JMP_SLOT, ! 72: RELOC_RELATIVE /* rtld relocs */ ! 73: }; ! 74: ! 75: /* ! 76: * Format of a relocation datum. ! 77: */ ! 78: struct relocation_info /* used when header.a_machtype == M_SPARC */ ! 79: { ! 80: unsigned long r_address; /* relocation addr */ ! 81: unsigned int r_index:24; /* segment index or symbol index */ ! 82: unsigned int r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */ ! 83: int r_pad:2; /* <unused> */ ! 84: enum reloc_type r_type:5; /* type of relocation to perform */ ! 85: long r_addend; /* addend for relocation value */ ! 86: }; ! 87: ! 88: #define N_RELOCATION_INFO_DECLARED 1 ! 89: ! 90: #ifdef __KERNEL__ ! 91: ! 92: #include <asm/page.h> ! 93: ! 94: #define STACK_TOP (PAGE_OFFSET - PAGE_SIZE) ! 95: ! 96: #endif /* __KERNEL__ */ ! 97: ! 98: #endif /* __SPARC_A_OUT_H__ */
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