-/* `a.out.adobe' differences from standard a.out files */
+/* `a.out.adobe' differences from standard a.out files
+
+ Copyright (C) 2001-2018 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#ifndef __A_OUT_ADOBE_H__
#define __A_OUT_ADOBE_H__
/* Struct external_exec is the same. */
-/* This is the layout on disk of the 32-bit or 64-bit exec header. */
+/* 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 */
+ 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 */
+/* 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)
+#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). */
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 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 */
+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) \
+#define N_TXTADDR(x) is_this_really_unused?
/* 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_TXTSIZE(x) ((x)->a_text)
-#define N_DATADDR(x)
+#define N_DATADDR(x) is_this_really_unused?
-#define N_BSSADDR(x)
+#define N_BSSADDR(x) is_this_really_unused?
/* 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 )
+#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 */
+/* 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 */
+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) */
+#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_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_STAB 0xe0 /* If any of these bits are on, it's a debug symbol. */
#define N_INDR 0x0a
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 */
+#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. */
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.
-*/
+ 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 */
+struct reloc_std_external
+{
+ bfd_byte r_address[BYTES_IN_WORD]; /* Offset 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_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_RELATIVE_BIG 0x02
#define RELOC_STD_BITS_RELATIVE_LITTLE 0x02
-#define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry */
+#define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry. */
struct reloc_std_internal
{
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" */
+ 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 */
+ 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 */
+struct reloc_ext_external
+{
+ bfd_byte r_address[BYTES_IN_WORD]; /* Offset 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
enum reloc_type
{
- /* simple relocations */
+ /* 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 */
+ /* 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 */
+ /* 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_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 */
+ /* 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. (?) */
+ /* For some sort of pc-rel P.I.C. (?) */
RELOC_PC10,
RELOC_PC22,
- /* P.I.C. jump table */
+ /* P.I.C. jump table. */
RELOC_JMP_TBL,
- /* reputedly for shared libraries somehow */
+ /* Reputedly for shared libraries somehow. */
RELOC_SEGOFF16,
RELOC_GLOB_DAT,
RELOC_JMP_SLOT,
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 */
+struct reloc_internal
+{
+ bfd_vma r_address; /* Offset 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__ */
+#endif /* __A_OUT_ADOBE_H__ */
projects / external / binutils.git / blobdiff