--- /dev/null
+/* `a.out.adobe' differences from standard a.out files */
+
+#ifndef __A_OUT_ADOBE_H__
+#define __A_OUT_ADOBE_H__
+
+#define BYTES_IN_WORD 4
+
+/* Struct external_exec is the same. */
+
+/* This is the layout on disk of the 32-bit or 64-bit exec header. */
+
+struct external_exec
+{
+ bfd_byte e_info[4]; /* magic number and stuff */
+ bfd_byte e_text[BYTES_IN_WORD]; /* length of text section in bytes */
+ bfd_byte e_data[BYTES_IN_WORD]; /* length of data section in bytes */
+ bfd_byte e_bss[BYTES_IN_WORD]; /* length of bss area in bytes */
+ bfd_byte e_syms[BYTES_IN_WORD]; /* length of symbol table in bytes */
+ bfd_byte e_entry[BYTES_IN_WORD]; /* start address */
+ bfd_byte e_trsize[BYTES_IN_WORD]; /* length of text relocation info */
+ bfd_byte e_drsize[BYTES_IN_WORD]; /* length of data relocation info */
+};
+
+#define EXEC_BYTES_SIZE (4 + BYTES_IN_WORD * 7)
+
+/* Magic numbers for a.out files */
+
+#undef ZMAGIC
+#define ZMAGIC 0xAD0BE /* Cute, eh? */
+#undef OMAGIC
+#undef NMAGIC
+
+#define N_BADMAG(x) ((x).a_info != ZMAGIC)
+
+/* By default, segment size is constant. But some machines override this
+ to be a function of the a.out header (e.g. machine type). */
+#ifndef N_SEGSIZE
+#define N_SEGSIZE(x) SEGMENT_SIZE
+#endif
+#undef N_SEGSIZE /* FIXMEXXXX */
+
+/* Segment information for the a.out.Adobe format is specified after the
+ file header. It contains N segment descriptors, followed by one with
+ a type of zero.
+
+ The actual text of the segments starts at N_TXTOFF in the file,
+ regardless of how many or how few segment headers there are. */
+
+struct external_segdesc {
+ unsigned char e_type[1];
+ unsigned char e_size[3];
+ unsigned char e_virtbase[4];
+ unsigned char e_filebase[4];
+};
+
+struct internal_segdesc {
+ unsigned int a_type:8; /* Segment type N_TEXT, N_DATA, 0 */
+ unsigned int a_size:24; /* Segment size */
+ bfd_vma a_virtbase; /* Virtual address */
+ unsigned int a_filebase; /* Base address in object file */
+};
+
+#define N_TXTADDR(x) \
+
+/* This is documented to be at 1024, but appears to really be at 2048.
+ FIXME?! */
+#define N_TXTOFF(x) 2048
+
+#define N_TXTSIZE(x) ((x).a_text)
+
+#define N_DATADDR(x)
+
+#define N_BSSADDR(x)
+
+/* Offsets of the various portions of the file after the text segment. */
+
+#define N_DATOFF(x) ( N_TXTOFF(x) + N_TXTSIZE(x) )
+#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data )
+#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize )
+#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize )
+#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
+\f
+/* Symbols */
+struct external_nlist {
+ bfd_byte e_strx[BYTES_IN_WORD]; /* index into string table of name */
+ bfd_byte e_type[1]; /* type of symbol */
+ bfd_byte e_other[1]; /* misc info (usually empty) */
+ bfd_byte e_desc[2]; /* description field */
+ bfd_byte e_value[BYTES_IN_WORD]; /* value of symbol */
+};
+
+#define EXTERNAL_NLIST_SIZE (BYTES_IN_WORD+4+BYTES_IN_WORD)
+
+struct internal_nlist {
+ unsigned long n_strx; /* index into string table of name */
+ unsigned char n_type; /* type of symbol */
+ unsigned char n_other; /* misc info (usually empty) */
+ unsigned short n_desc; /* description field */
+ bfd_vma n_value; /* value of symbol */
+};
+
+/* The n_type field is the symbol type, containing: */
+
+#define N_UNDF 0 /* Undefined symbol */
+#define N_ABS 2 /* Absolute symbol -- defined at particular addr */
+#define N_TEXT 4 /* Text sym -- defined at offset in text seg */
+#define N_DATA 6 /* Data sym -- defined at offset in data seg */
+#define N_BSS 8 /* BSS sym -- defined at offset in zero'd seg */
+#define N_COMM 0x12 /* Common symbol (visible after shared lib dynlink) */
+#define N_FN 0x1f /* File name of .o file */
+#define N_FN_SEQ 0x0C /* N_FN from Sequent compilers (sigh) */
+/* Note: N_EXT can only be usefully OR-ed with N_UNDF, N_ABS, N_TEXT,
+ N_DATA, or N_BSS. When the low-order bit of other types is set,
+ (e.g. N_WARNING versus N_FN), they are two different types. */
+#define N_EXT 1 /* External symbol (as opposed to local-to-this-file) */
+#define N_TYPE 0x1e
+#define N_STAB 0xe0 /* If any of these bits are on, it's a debug symbol */
+
+#define N_INDR 0x0a
+
+/* 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
+ elements 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. */
+
+/* Warning symbol. The text gives a warning message, the next symbol
+ in the table will be undefined. When the symbol is referenced, the
+ message is printed. */
+
+#define N_WARNING 0x1e
+
+/* Relocations
+
+ There are two types of relocation flavours for a.out systems,
+ standard and extended. The standard form is used on systems where the
+ instruction has room for all the bits of an offset to the operand, whilst
+ the extended form is used when an address operand has to be split over n
+ instructions. Eg, on the 68k, each move instruction can reference
+ the target with a displacement of 16 or 32 bits. On the sparc, move
+ instructions use an offset of 14 bits, so the offset is stored in
+ the reloc field, and the data in the section is ignored.
+*/
+
+/* 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 reloc_std_external {
+ bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */
+ bfd_byte r_index[3]; /* symbol table index of symbol */
+ bfd_byte r_type[1]; /* relocation type */
+};
+
+#define RELOC_STD_BITS_PCREL_BIG 0x80
+#define RELOC_STD_BITS_PCREL_LITTLE 0x01
+
+#define RELOC_STD_BITS_LENGTH_BIG 0x60
+#define RELOC_STD_BITS_LENGTH_SH_BIG 5 /* To shift to units place */
+#define RELOC_STD_BITS_LENGTH_LITTLE 0x06
+#define RELOC_STD_BITS_LENGTH_SH_LITTLE 1
+
+#define RELOC_STD_BITS_EXTERN_BIG 0x10
+#define RELOC_STD_BITS_EXTERN_LITTLE 0x08
+
+#define RELOC_STD_BITS_BASEREL_BIG 0x08
+#define RELOC_STD_BITS_BASEREL_LITTLE 0x08
+
+#define RELOC_STD_BITS_JMPTABLE_BIG 0x04
+#define RELOC_STD_BITS_JMPTABLE_LITTLE 0x04
+
+#define RELOC_STD_BITS_RELATIVE_BIG 0x02
+#define RELOC_STD_BITS_RELATIVE_LITTLE 0x02
+
+#define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry */
+
+struct reloc_std_internal
+{
+ bfd_vma r_address; /* Address (within segment) to be relocated. */
+ /* 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 files 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;
+ /* The next three bits are for SunOS shared libraries, and seem to
+ be undocumented. */
+ unsigned int r_baserel:1; /* Linkage table relative */
+ unsigned int r_jmptable:1; /* pc-relative to jump table */
+ unsigned int r_relative:1; /* "relative relocation" */
+ /* unused */
+ unsigned int r_pad:1; /* Padding -- set to zero */
+};
+
+
+/* EXTENDED RELOCS */
+
+struct reloc_ext_external {
+ bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */
+ bfd_byte r_index[3]; /* symbol table index of symbol */
+ bfd_byte r_type[1]; /* relocation type */
+ bfd_byte r_addend[BYTES_IN_WORD]; /* datum addend */
+};
+
+#define RELOC_EXT_BITS_EXTERN_BIG 0x80
+#define RELOC_EXT_BITS_EXTERN_LITTLE 0x01
+
+#define RELOC_EXT_BITS_TYPE_BIG 0x1F
+#define RELOC_EXT_BITS_TYPE_SH_BIG 0
+#define RELOC_EXT_BITS_TYPE_LITTLE 0xF8
+#define RELOC_EXT_BITS_TYPE_SH_LITTLE 3
+
+/* Bytes per relocation entry */
+#define RELOC_EXT_SIZE (BYTES_IN_WORD + 3 + 1 + BYTES_IN_WORD)
+
+enum reloc_type
+{
+ /* simple relocations */
+ RELOC_8, /* data[0:7] = addend + sv */
+ RELOC_16, /* data[0:15] = addend + sv */
+ RELOC_32, /* data[0:31] = addend + sv */
+ /* pc-rel displacement */
+ RELOC_DISP8, /* data[0:7] = addend - pc + sv */
+ RELOC_DISP16, /* data[0:15] = addend - pc + sv */
+ RELOC_DISP32, /* data[0:31] = addend - pc + sv */
+ /* Special */
+ RELOC_WDISP30, /* data[0:29] = (addend + sv - pc)>>2 */
+ RELOC_WDISP22, /* data[0:21] = (addend + sv - pc)>>2 */
+ RELOC_HI22, /* data[0:21] = (addend + sv)>>10 */
+ RELOC_22, /* data[0:21] = (addend + sv) */
+ RELOC_13, /* data[0:12] = (addend + sv) */
+ RELOC_LO10, /* data[0:9] = (addend + sv) */
+ RELOC_SFA_BASE,
+ RELOC_SFA_OFF13,
+ /* P.I.C. (base-relative) */
+ RELOC_BASE10, /* Not sure - maybe we can do this the */
+ RELOC_BASE13, /* right way now */
+ RELOC_BASE22,
+ /* for some sort of pc-rel P.I.C. (?) */
+ RELOC_PC10,
+ RELOC_PC22,
+ /* P.I.C. jump table */
+ RELOC_JMP_TBL,
+ /* reputedly for shared libraries somehow */
+ RELOC_SEGOFF16,
+ RELOC_GLOB_DAT,
+ RELOC_JMP_SLOT,
+ RELOC_RELATIVE,
+
+ RELOC_11,
+ RELOC_WDISP2_14,
+ RELOC_WDISP19,
+ RELOC_HHI22, /* data[0:21] = (addend + sv) >> 42 */
+ RELOC_HLO10, /* data[0:9] = (addend + sv) >> 32 */
+
+ /* 29K relocation types */
+ RELOC_JUMPTARG,
+ RELOC_CONST,
+ RELOC_CONSTH,
+
+ NO_RELOC
+ };
+
+
+struct reloc_internal {
+ bfd_vma r_address; /* offset of of data to relocate */
+ long r_index; /* symbol table index of symbol */
+ enum reloc_type r_type; /* relocation type */
+ bfd_vma r_addend; /* datum addend */
+};
+
+#endif /* __A_OUT_ADOBE_H__ */
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