/* $Id: a.out.h,v 1.13 2000/01/09 10:46:53 anton Exp $ */ #ifndef __SPARC_A_OUT_H__ #define __SPARC_A_OUT_H__ #define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */ #define SEGMENT_SIZE SPARC_PGSIZE /* whee... */ struct exec { unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */ unsigned char a_toolversion:7; unsigned char a_machtype; unsigned short a_info; unsigned long a_text; /* length of text, in bytes */ unsigned long a_data; /* length of data, in bytes */ unsigned long a_bss; /* length of bss, in bytes */ unsigned long a_syms; /* length of symbol table, in bytes */ unsigned long a_entry; /* where program begins */ unsigned long a_trsize; unsigned long a_drsize; }; /* Where in the file does the text information begin? */ #define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec)) /* Where do the Symbols start? */ #define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \ (x).a_data + (x).a_trsize + \ (x).a_drsize) /* Where does text segment go in memory after being loaded? */ #define N_TXTADDR(x) (((N_MAGIC(x) == ZMAGIC) && \ ((x).a_entry < SPARC_PGSIZE)) ? \ 0 : SPARC_PGSIZE) /* And same for the data segment.. */ #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \ (N_TXTADDR(x) + (x).a_text) \ : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) #define N_TRSIZE(a) ((a).a_trsize) #define N_DRSIZE(a) ((a).a_drsize) #define N_SYMSIZE(a) ((a).a_syms) /* * Sparc relocation types */ enum reloc_type { RELOC_8, RELOC_16, RELOC_32, /* simplest relocs */ RELOC_DISP8, RELOC_DISP16, RELOC_DISP32, /* Disp's (pc-rel) */ RELOC_WDISP30, RELOC_WDISP22, /* SR word disp's */ RELOC_HI22, RELOC_22, /* SR 22-bit relocs */ RELOC_13, RELOC_LO10, /* SR 13&10-bit relocs */ RELOC_SFA_BASE, RELOC_SFA_OFF13, /* SR S.F.A. relocs */ RELOC_BASE10, RELOC_BASE13, RELOC_BASE22, /* base_relative pic */ RELOC_PC10, RELOC_PC22, /* special pc-rel pic */ RELOC_JMP_TBL, /* jmp_tbl_rel in pic */ RELOC_SEGOFF16, /* ShLib offset-in-seg */ RELOC_GLOB_DAT, RELOC_JMP_SLOT, RELOC_RELATIVE /* rtld relocs */ }; /* * Format of a relocation datum. */ struct relocation_info /* used when header.a_machtype == M_SPARC */ { unsigned long r_address; /* relocation addr */ unsigned int r_index:24; /* segment index or symbol index */ unsigned int r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */ unsigned int r_pad:2; /* <unused> */ enum reloc_type r_type:5; /* type of relocation to perform */ long r_addend; /* addend for relocation value */ }; #define N_RELOCATION_INFO_DECLARED 1 #ifdef __KERNEL__ #include <asm/page.h> #define STACK_TOP (PAGE_OFFSET - PAGE_SIZE) #define STACK_TOP_MAX STACK_TOP #endif /* __KERNEL__ */ #endif /* __SPARC_A_OUT_H__ */