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-rw-r--r--ld/rel_aout.h383
1 files changed, 383 insertions, 0 deletions
diff --git a/ld/rel_aout.h b/ld/rel_aout.h
new file mode 100644
index 0000000..9316a72
--- /dev/null
+++ b/ld/rel_aout.h
@@ -0,0 +1,383 @@
+#ifndef _BSD_A_OUT_H
+#define _BSD_A_OUT_H
+
+struct exec { /* a.out header */
+ unsigned char a_magic[2]; /* magic number */
+ unsigned char a_flags; /* flags, see below */
+ unsigned char a_cpu; /* cpu id */
+ unsigned char a_hdrlen; /* length of header */
+ unsigned char a_unused; /* reserved for future use */
+ unsigned short a_version; /* version stamp (not used at present) */
+ long a_text; /* size of text segement in bytes */
+ long a_data; /* size of data segment in bytes */
+ long a_bss; /* size of bss segment in bytes */
+ long a_entry; /* entry point */
+ long a_total; /* total memory allocated */
+ long a_syms; /* size of symbol table */
+ /* SHORT FORM ENDS HERE */
+
+ long a_trsize; /* text relocation size */
+ long a_drsize; /* data relocation size */
+ long a_tbase; /* text relocation base */
+ long a_dbase; /* data relocation base */
+};
+
+#define A_MAGIC0 ((unsigned char) 0x01)
+#define A_MAGIC1 ((unsigned char) 0x03)
+#define BADMAG(X) ((X).a_magic[0] != A_MAGIC0 || (X).a_magic[1] != A_MAGIC1)
+
+/* CPU Id of TARGET machine (byte order coded in low order two bits) */
+#define A_NONE 0x00 /* unknown */
+#define A_I8086 0x04 /* intel i8086/8088 */
+#define A_M68K 0x0B /* motorola m68000 */
+#define A_NS16K 0x0C /* national semiconductor 16032 */
+#define A_I80386 0x10 /* intel i80386 */
+#define A_SPARC 0x17 /* Sun SPARC */
+
+#define A_BLR(cputype) ((cputype&0x01)!=0) /* TRUE if bytes left-to-right */
+#define A_WLR(cputype) ((cputype&0x02)!=0) /* TRUE if words left-to-right */
+
+/* Flags. */
+#define A_UZP 0x01 /* unmapped zero page (pages) */
+#define A_EXEC 0x10 /* executable */
+#define A_SEP 0x20 /* separate I/D */
+#define A_PURE 0x40 /* pure text */ /* not used */
+#define A_TOVLY 0x80 /* text overlay */ /* not used */
+
+/* Tell a.out.gnu.h not to define `struct exec'. */
+#define __STRUCT_EXEC_OVERRIDE__
+
+/* Hide M_386 from enum declaration in a.out.h. */
+#define M_386 HIDE_M_386
+
+#ifndef __A_OUT_GNU_H__
+#define __A_OUT_GNU_H__
+
+#if defined(sequent) && defined(i386)
+#define a_magic a_info
+#include <a.out.h>
+#undef a_magic
+#define __STRUCT_EXEC_OVERRIDE__
+#define N_NLIST_DECLARED
+#define N_RELOCATION_INFO_DECLARED
+#endif
+
+#define __GNU_EXEC_MACROS__
+
+#ifndef __STRUCT_EXEC_OVERRIDE__
+
+struct exec
+{
+ unsigned long a_info; /* Use macros N_MAGIC, etc for access */
+ unsigned long a_text; /* length of text, in bytes */
+ unsigned long a_data; /* length of data, in bytes */
+ unsigned long a_bss; /* length of uninitialized data area for file, in bytes */
+ unsigned long a_syms; /* length of symbol table data in file, in bytes */
+ unsigned long a_entry; /* start address */
+ unsigned long a_trsize; /* length of relocation info for text, in bytes */
+ unsigned long a_drsize; /* length of relocation info for data, in bytes */
+};
+
+#endif /* __STRUCT_EXEC_OVERRIDE__ */
+
+/* these go in the N_MACHTYPE field */
+enum machine_type {
+#if defined (M_OLDSUN2)
+ M__OLDSUN2 = M_OLDSUN2,
+#else
+ M_OLDSUN2 = 0,
+#endif
+#if defined (M_68010)
+ M__68010 = M_68010,
+#else
+ M_68010 = 1,
+#endif
+#if defined (M_68020)
+ M__68020 = M_68020,
+#else
+ M_68020 = 2,
+#endif
+#if defined (M_SPARC)
+ M__SPARC = M_SPARC,
+#else
+ M_SPARC = 3,
+#endif
+ /* skip a bunch so we don't run into any of sun's numbers */
+ M_386 = 100,
+};
+
+#if !defined (N_MAGIC)
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#endif
+#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
+#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
+#define N_SET_INFO(exec, magic, type, flags) \
+ ((exec).a_info = ((magic) & 0xffff) \
+ | (((int)(type) & 0xff) << 16) \
+ | (((flags) & 0xff) << 24))
+#define N_SET_MAGIC(exec, magic) \
+ ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
+
+#define N_SET_MACHTYPE(exec, machtype) \
+ ((exec).a_info = \
+ ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
+
+#define N_SET_FLAGS(exec, flags) \
+ ((exec).a_info = \
+ ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
+
+#ifndef OMAGIC
+/* Code indicating object file or impure executable. */
+#define OMAGIC 0407
+/* Code indicating pure executable. */
+#define NMAGIC 0410
+/* Code indicating demand-paged executable. */
+#define ZMAGIC 0413
+#endif /* not OMAGIC */
+
+#if !defined (N_BADMAG)
+#define N_BADMAG(x) \
+ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+#endif
+
+#define _N_BADMAG(x) \
+ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+
+#define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec))
+
+#if !defined (N_TXTOFF)
+#define N_TXTOFF(x) \
+ (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec))
+#endif
+
+#if !defined (N_DATOFF)
+#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
+#endif
+
+#if !defined (N_TRELOFF)
+#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
+#endif
+
+#if !defined (N_DRELOFF)
+#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
+#endif
+
+#if !defined (N_SYMOFF)
+#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
+#endif
+
+#if !defined (N_STROFF)
+#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
+#endif
+
+/* Address of text segment in memory after it is loaded. */
+#if !defined (N_TXTADDR)
+#define N_TXTADDR(x) 0
+#endif
+
+/* Address of data segment in memory after it is loaded.
+ Note that it is up to you to define SEGMENT_SIZE
+ on machines not listed here. */
+#if defined(vax) || defined(hp300) || defined(pyr)
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+#ifdef hp300
+#define PAGE_SIZE 4096
+#endif
+#ifdef sony
+#define SEGMENT_SIZE 0x2000
+#endif /* Sony. */
+#ifdef is68k
+#define SEGMENT_SIZE 0x20000
+#endif
+#if defined(m68k) && defined(PORTAR)
+#define PAGE_SIZE 0x400
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+
+#define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1))
+
+#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
+
+#ifndef N_DATADDR
+#define N_DATADDR(x) \
+ (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \
+ : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
+#endif
+
+/* Address of bss segment in memory after it is loaded. */
+#if !defined (N_BSSADDR)
+#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
+#endif
+
+#if !defined (N_NLIST_DECLARED)
+struct nlist {
+ union {
+ char *n_name;
+ struct nlist *n_next;
+ long n_strx;
+ } n_un;
+ unsigned char n_type;
+ char n_other;
+ short n_desc;
+ unsigned long n_value;
+};
+#endif /* no N_NLIST_DECLARED. */
+
+#if !defined (N_UNDF)
+#define N_UNDF 0
+#endif
+#if !defined (N_ABS)
+#define N_ABS 2
+#endif
+#if !defined (N_TEXT)
+#define N_TEXT 4
+#endif
+#if !defined (N_DATA)
+#define N_DATA 6
+#endif
+#if !defined (N_BSS)
+#define N_BSS 8
+#endif
+#if !defined (N_COMM)
+#define N_COMM 18
+#endif
+#if !defined (N_FN)
+#define N_FN 15
+#endif
+
+#if !defined (N_EXT)
+#define N_EXT 1
+#endif
+#if !defined (N_TYPE)
+#define N_TYPE 036
+#endif
+#if !defined (N_STAB)
+#define N_STAB 0340
+#endif
+
+/* The following type indicates the definition of a symbol as being
+ an indirect reference to another symbol. The other symbol
+ appears as an undefined reference, immediately following this symbol.
+
+ Indirection is asymmetrical. The other symbol's value will be used
+ to satisfy requests for the indirect symbol, but not vice versa.
+ If the other symbol does not have a definition, libraries will
+ be searched to find a definition. */
+#define N_INDR 0xa
+
+/* The following symbols refer to set elements.
+ All the N_SET[ATDB] symbols with the same name form one set.
+ Space is allocated for the set in the text section, and each set
+ element's value is stored into one word of the space.
+ The first word of the space is the length of the set (number of elements).
+
+ The address of the set is made into an N_SETV symbol
+ whose name is the same as the name of the set.
+ This symbol acts like a N_DATA global symbol
+ in that it can satisfy undefined external references. */
+
+/* These appear as input to LD, in a .o file. */
+#define N_SETA 0x14 /* Absolute set element symbol */
+#define N_SETT 0x16 /* Text set element symbol */
+#define N_SETD 0x18 /* Data set element symbol */
+#define N_SETB 0x1A /* Bss set element symbol */
+
+/* This is output from LD. */
+#define N_SETV 0x1C /* Pointer to set vector in data area. */
+
+#if !defined (N_RELOCATION_INFO_DECLARED)
+/* This structure describes a single relocation to be performed.
+ The text-relocation section of the file is a vector of these structures,
+ all of which apply to the text section.
+ Likewise, the data-relocation section applies to the data section. */
+
+struct relocation_info
+{
+ /* Address (within segment) to be relocated. */
+ unsigned long r_address;
+#if 0
+ /* The meaning of r_symbolnum depends on r_extern. */
+ unsigned int r_symbolnum:24;
+ /* Nonzero means value is a pc-relative offset
+ and it should be relocated for changes in its own address
+ as well as for changes in the symbol or section specified. */
+ unsigned int r_pcrel:1;
+ /* Length (as exponent of 2) of the field to be relocated.
+ Thus, a value of 2 indicates 1<<2 bytes. */
+ unsigned int r_length:2;
+ /* 1 => relocate with value of symbol.
+ r_symbolnum is the index of the symbol
+ in file's the symbol table.
+ 0 => relocate with the address of a segment.
+ r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS
+ (the N_EXT bit may be set also, but signifies nothing). */
+ unsigned int r_extern:1;
+ /* Four bits that aren't used, but when writing an object file
+ it is desirable to clear them. */
+ unsigned int r_pad:4;
+#else
+ unsigned long foo;
+#endif
+};
+#endif /* no N_RELOCATION_INFO_DECLARED. */
+
+
+#endif /* __A_OUT_GNU_H__ */
+
+#undef M_386
+#define M_386 A_I80386
+
+#undef N_MAGIC
+#define N_MAGIC3(magic0, magic1, type) \
+ ((magic0) | ((magic1) << 8) | ((type) << 16))
+#define N_MAGIC(exec) \
+ N_MAGIC3((exec).a_magic[0], (exec).a_magic[1], (exec).a_flags)
+
+#undef N_MACHTYPE
+#define N_MACHTYPE(exec) ((enum machine_type)((exec).a_cpu))
+
+#undef N_FLAGS
+#define N_FLAGS(exec) 0
+
+#undef N_SET_INFO
+#define N_SET_INFO(exec, magic, type, flags) \
+ ((exec).a_magic[0] = (magic) & 0xff, \
+ (exec).a_magic[1] = ((magic) >> 8) & 0xff, \
+ (exec).a_flags = ((magic) >> 16) & 0xff, \
+ (exec).a_cpu = (type) & 0xff)
+
+#undef N_SET_MAGIC
+#define N_SET_MAGIC(exec, magic) \
+ ((exec).a_magic[0] = (magic) & 0xff, \
+ (exec).a_magic[1] = ((magic) >> 8) & 0xff, \
+ (exec).a_flags = ((magic) >> 16) & 0xff)
+
+#undef N_SET_MACHTYPE
+#define N_SET_MACHTYPE(exec, machtype) \
+ ((exec).a_cpu = (machtype) & 0xff, \
+ (exec).a_hdrlen = sizeof (exec))
+
+#undef N_SET_FLAGS
+#define N_SET_FLAGS(exec, flags) /* nothing */
+
+#undef OMAGIC
+#define OMAGIC N_MAGIC3(A_MAGIC0, A_MAGIC1, 0)
+
+#undef NMAGIC
+#define NMAGIC N_MAGIC3(A_MAGIC0, A_MAGIC1, A_EXEC)
+
+#undef ZMAGIC
+#define ZMAGIC N_MAGIC3(A_MAGIC0, A_MAGIC1, A_EXEC)
+
+#undef _N_HDROFF
+#define _N_HDROFF(x) 0
+
+#undef PAGE_SIZE
+#define PAGE_SIZE 16
+#define SEGMENT_SIZE PAGE_SIZE
+#define getpagesize() PAGE_SIZE
+
+#endif /* _BSD_A_OUT_H */