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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- *
- * @(#)a.out.h 5.2 (Berkeley) 4/7/87
- */
-
- /*
- * Definitions of the a.out header
- * and magic numbers are shared with
- * the kernel.
- */
- #ifndef _AOUT
- #define _AOUT
-
- #include <sun4.md/sys/exec.h>
-
- extern int Aout_PageSize[];
-
- /*
- * Macro to tell whether or not the magic number in an a.out file
- * is an illegal one.
- */
-
- #define N_BADMAG(x) \
- (((x).a_magic)!=OMAGIC && \
- ((x).a_magic)!=NMAGIC && \
- ((x).a_magic)!=ZMAGIC && \
- ((x).a_magic)!=SPRITE_ZMAGIC && \
- ((x).a_magic)!=UNIX_ZMAGIC)
-
- /*
- * Macros to tell where various pieces of information start in the
- * a.out file.
- */
-
- #define N_PAGSIZ(x) (Aout_PageSize[(x).a_machtype])
-
- #define N_TXTOFF(x) \
- ((x).a_magic==ZMAGIC ? 0 : sizeof (struct exec))
- #define N_SYMOFF(x) \
- (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize + (x).a_drsize)
- #define N_STROFF(x) \
- (N_SYMOFF(x) + (x).a_syms)
-
- /*
- * Macros to tell where the various segments start in virtual memory,
- * when the process is loaded.
- */
- #include <sun4.md/kernel/procMach.h>
-
- #define N_TXTADDR(x) PROC_CODE_LOAD_ADDR(*((ProcExecHeader *) &(x)))
- #define N_DATADDR(x) PROC_DATA_LOAD_ADDR(*((ProcExecHeader *) &(x)))
- #define N_BSSADDR(x) PROC_BSS_LOAD_ADDR(*((ProcExecHeader *) &(x)))
-
- /*
- * 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 reloc_info_sparc /* used when header.a_machtype == M_SPARC */
- {
- unsigned long int r_address; /* address which is relocated */
- unsigned int r_index :24; /* segment index or symbol index */
- unsigned int r_extern : 1; /* if F, r_index==SEG#; if T, SYM idx */
- int : 2; /* <unused> */
- enum reloc_type r_type : 5; /* type of relocation to perform */
- long int r_addend; /* addend for relocation value */
- };
-
-
- #define relocation_info reloc_info_sparc
- #if 0
- struct relocation_info {
- int r_address; /* address which is relocated */
- unsigned int r_symbolnum:24, /* local symbol ordinal */
- r_pcrel:1, /* was relocated pc relative already */
- r_length:2, /* 0=byte, 1=word, 2=long */
- r_extern:1, /* does not include value of sym referenced */
- :4; /* nothing, yet */
- };
- #endif
-
- /*
- * Format of a symbol table entry; this file is included by <a.out.h>
- * and should be used if you aren't interested the a.out header
- * or relocation information.
- */
- struct nlist {
- union {
- char *n_name; /* for use when in-core */
- long n_strx; /* index into file string table */
- } n_un;
- unsigned char n_type; /* type flag, i.e. N_TEXT etc; see below */
- char n_other; /* unused */
- short n_desc; /* see <stab.h> */
- unsigned long n_value; /* value of this symbol (or sdb offset) */
- };
- #define n_hash n_desc /* used internally by ld */
-
- /*
- * Simple values for n_type.
- */
- #define N_UNDF 0x0 /* undefined */
- #define N_ABS 0x2 /* absolute */
- #define N_TEXT 0x4 /* text */
- #define N_DATA 0x6 /* data */
- #define N_BSS 0x8 /* bss */
- #define N_COMM 0x12 /* common (internal to ld) */
- #define N_FN 0x1e /* file name symbol */
-
- #define N_EXT 01 /* external bit, or'ed in */
- #define N_TYPE 0x1e /* mask for all the type bits */
-
- /*
- * Sdb entries have some of the N_STAB bits set.
- * These are given in <stab.h>
- */
- #define N_STAB 0xe0 /* if any of these bits set, a SDB entry */
-
- /*
- * Format for namelist values.
- */
- #define N_FORMAT "%08x"
-
- #endif /* _AOUT */
-