/* BFD back-end data structures for a.out (and similar) files.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001
+ 2000, 2001, 2002
Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-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 2 of the License, or
-(at your option) any later version.
+ 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 2 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef LIBAOUT_H
#define LIBAOUT_H
/* Parameterize the a.out code based on whether it is being built
for a 32-bit architecture or a 64-bit architecture. */
+/* Do not "beautify" the CONCAT* macro args. Traditional C will not
+ remove whitespace added here, and thus will fail to concatenate
+ the tokens. */
#if ARCH_SIZE==64
#define GET_WORD H_GET_64
#define GET_SWORD H_GET_S64
#define PUT_WORD H_PUT_64
#define PUT_MAGIC H_PUT_32
#ifndef NAME
-#define NAME(x,y) CAT3(x,_64_,y)
+#define NAME(x,y) CONCAT3 (x,_64_,y)
#endif
-#define JNAME(x) CAT(x,_64)
+#define JNAME(x) CONCAT2 (x,_64)
#define BYTES_IN_WORD 8
#else
#if ARCH_SIZE==16
#define PUT_WORD H_PUT_16
#define PUT_MAGIC H_PUT_16
#ifndef NAME
-#define NAME(x,y) CAT3(x,_16_,y)
+#define NAME(x,y) CONCAT3 (x,_16_,y)
#endif
-#define JNAME(x) CAT(x,_16)
+#define JNAME(x) CONCAT2 (x,_16)
#define BYTES_IN_WORD 2
#else /* ARCH_SIZE == 32 */
#define GET_WORD H_GET_32
#define PUT_WORD H_PUT_32
#define PUT_MAGIC H_PUT_32
#ifndef NAME
-#define NAME(x,y) CAT3(x,_32_,y)
+#define NAME(x,y) CONCAT3 (x,_32_,y)
#endif
-#define JNAME(x) CAT(x,_32)
+#define JNAME(x) CONCAT2 (x,_32)
#define BYTES_IN_WORD 4
#endif /* ARCH_SIZE==32 */
#endif /* ARCH_SIZE==64 */
{
struct bfd_link_hash_entry root;
/* Whether this symbol has been written out. */
- boolean written;
+ bfd_boolean written;
/* Symbol index in output file. */
int indx;
};
#define aout_link_hash_traverse(table, func, info) \
(bfd_link_hash_traverse \
(&(table)->root, \
- (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
+ (bfd_boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
(info)))
/* Get the a.out link hash table from the info structure. This is
/* Callback for setting the page and segment sizes, if they can't be
trivially determined from the architecture. */
- boolean (*set_sizes)
+ bfd_boolean (*set_sizes)
PARAMS ((bfd *));
/* zmagic files only. For go32, the length of the exec header contributes
/* Callback from the add symbols phase of the linker code to handle
a dynamic object. */
- boolean (*add_dynamic_symbols)
+ bfd_boolean (*add_dynamic_symbols)
PARAMS ((bfd *, struct bfd_link_info *, struct external_nlist **,
bfd_size_type *, char **));
/* Callback from the add symbols phase of the linker code to handle
adding a single symbol to the global linker hash table. */
- boolean (*add_one_symbol)
+ bfd_boolean (*add_one_symbol)
PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
- asection *, bfd_vma, const char *, boolean, boolean,
+ asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
struct bfd_link_hash_entry **));
/* Called to handle linking a dynamic object. */
- boolean (*link_dynamic_object)
+ bfd_boolean (*link_dynamic_object)
PARAMS ((struct bfd_link_info *, bfd *));
/* Called for each global symbol being written out by the linker.
This should write out the dynamic symbol information. */
- boolean (*write_dynamic_symbol)
+ bfd_boolean (*write_dynamic_symbol)
PARAMS ((bfd *, struct bfd_link_info *, struct aout_link_hash_entry *));
/* If this callback is not NULL, the linker calls it for each reloc.
RELOC is a pointer to the unswapped reloc. If *SKIP is set to
- true, the reloc will be skipped. *RELOCATION may be changed to
+ TRUE, the reloc will be skipped. *RELOCATION may be changed to
change the effects of the relocation. */
- boolean (*check_dynamic_reloc)
+ bfd_boolean (*check_dynamic_reloc)
PARAMS ((struct bfd_link_info *info, bfd *input_bfd,
asection *input_section, struct aout_link_hash_entry *h,
- PTR reloc, bfd_byte *contents, boolean *skip,
+ PTR reloc, bfd_byte *contents, bfd_boolean *skip,
bfd_vma *relocation));
/* Called at the end of a link to finish up any dynamic linking
information. */
- boolean (*finish_dynamic_link)
+ bfd_boolean (*finish_dynamic_link)
PARAMS ((bfd *, struct bfd_link_info *));
};
#define aout_backend_info(abfd) \
M_68010 = 1,
M_68020 = 2,
M_SPARC = 3,
- /* skip a bunch so we don't run into any of suns numbers */
- /* make these up for the ns32k*/
- M_NS32032 = (64), /* ns32032 running ? */
- M_NS32532 = (64 + 5), /* ns32532 running mach */
+ /* Skip a bunch so we don't run into any of SUN's numbers. */
+ /* Make these up for the ns32k. */
+ M_NS32032 = (64), /* ns32032 running ? */
+ M_NS32532 = (64 + 5), /* ns32532 running mach */
M_386 = 100,
M_29K = 101, /* AMD 29000 */
M_ALPHA_NETBSD = 141, /* NetBSD/alpha binary */
M_ARM6_NETBSD = 143, /* NetBSD/arm32 binary */
M_SPARCLET_1 = 147, /* 0x93, reserved */
+ M_VAX4K_NETBSD = 150, /* NetBSD/vax 4K pages binary */
M_MIPS1 = 151, /* MIPS R2000/R3000 binary */
M_MIPS2 = 152, /* MIPS R4000/R6000 binary */
M_SPARCLET_2 = 163, /* 0xa3, reserved */
struct internal_exec *hdr; /* exec file header */
aout_symbol_type *symbols; /* symtab for input bfd */
- /* For ease, we do this */
+ /* For ease, we do this. */
asection *textsec;
asection *datasec;
asection *bsssec;
file_ptr sym_filepos;
file_ptr str_filepos;
- /* Size of a relocation entry in external form */
+ /* Size of a relocation entry in external form. */
unsigned reloc_entry_size;
- /* Size of a symbol table entry in external form */
+ /* Size of a symbol table entry in external form. */
unsigned symbol_entry_size;
- /* Page size - needed for alignment of demand paged files. */
+ /* Page size - needed for alignment of demand paged files. */
unsigned long page_size;
- /* Segment size - needed for alignment of demand paged files. */
+ /* Segment size - needed for alignment of demand paged files. */
unsigned long segment_size;
/* Zmagic disk block size - need to align the start of the text
unsigned exec_bytes_size;
unsigned vma_adjusted : 1;
- /* used when a bfd supports several highly similar formats */
+ /* Used when a bfd supports several highly similar formats. */
enum
{
default_format = 0,
#define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info)
/* We take the address of the first element of an asymbol to ensure that the
- macro is only ever applied to an asymbol */
+ macro is only ever applied to an asymbol. */
#define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
/* Information we keep for each a.out section. This is currently only
#define set_aout_section_data(s,v) \
((s)->used_by_bfd = (PTR)&(v)->relocs)
-/* Prototype declarations for functions defined in aoutx.h */
+/* Prototype declarations for functions defined in aoutx.h. */
-extern boolean NAME(aout,squirt_out_relocs)
+extern bfd_boolean NAME(aout,squirt_out_relocs)
PARAMS ((bfd *, asection *));
-extern boolean NAME(aout,make_sections)
+extern bfd_boolean NAME(aout,make_sections)
PARAMS ((bfd *));
extern const bfd_target * NAME(aout,some_aout_object_p)
PARAMS ((bfd *, struct internal_exec *, const bfd_target *(*) (bfd *)));
-extern boolean NAME(aout,mkobject)
+extern bfd_boolean NAME(aout,mkobject)
PARAMS ((bfd *));
extern enum machine_type NAME(aout,machine_type)
- PARAMS ((enum bfd_architecture, unsigned long, boolean *));
+ PARAMS ((enum bfd_architecture, unsigned long, bfd_boolean *));
-extern boolean NAME(aout,set_arch_mach)
+extern bfd_boolean NAME(aout,set_arch_mach)
PARAMS ((bfd *, enum bfd_architecture, unsigned long));
-extern boolean NAME(aout,new_section_hook)
+extern bfd_boolean NAME(aout,new_section_hook)
PARAMS ((bfd *, asection *));
-extern boolean NAME(aout,set_section_contents)
+extern bfd_boolean NAME(aout,set_section_contents)
PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
extern asymbol * NAME(aout,make_empty_symbol)
PARAMS ((bfd *));
-extern boolean NAME(aout,translate_symbol_table)
+extern bfd_boolean NAME(aout,translate_symbol_table)
PARAMS ((bfd *, aout_symbol_type *, struct external_nlist *, bfd_size_type,
- char *, bfd_size_type, boolean));
+ char *, bfd_size_type, bfd_boolean));
-extern boolean NAME(aout,slurp_symbol_table)
+extern bfd_boolean NAME(aout,slurp_symbol_table)
PARAMS ((bfd *));
-extern boolean NAME(aout,write_syms)
+extern bfd_boolean NAME(aout,write_syms)
PARAMS ((bfd *));
extern void NAME(aout,reclaim_symbol_table)
extern reloc_howto_type * NAME(aout,reloc_type_lookup)
PARAMS ((bfd *, bfd_reloc_code_real_type));
-extern boolean NAME(aout,slurp_reloc_table)
+extern bfd_boolean NAME(aout,slurp_reloc_table)
PARAMS ((bfd *, sec_ptr, asymbol **));
extern long NAME(aout,canonicalize_reloc)
extern void NAME(aout,get_symbol_info)
PARAMS ((bfd *, asymbol *, symbol_info *));
-extern boolean NAME(aout,find_nearest_line)
+extern bfd_boolean NAME(aout,find_nearest_line)
PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
const char **, unsigned int *));
extern long NAME(aout,read_minisymbols)
- PARAMS ((bfd *, boolean, PTR *, unsigned int *));
+ PARAMS ((bfd *, bfd_boolean, PTR *, unsigned int *));
extern asymbol * NAME(aout,minisymbol_to_symbol)
- PARAMS ((bfd *, boolean, const PTR, asymbol *));
+ PARAMS ((bfd *, bfd_boolean, const PTR, asymbol *));
extern int NAME(aout,sizeof_headers)
- PARAMS ((bfd *, boolean));
+ PARAMS ((bfd *, bfd_boolean));
-extern boolean NAME(aout,adjust_sizes_and_vmas)
+extern bfd_boolean NAME(aout,adjust_sizes_and_vmas)
PARAMS ((bfd *, bfd_size_type *, file_ptr *));
extern void NAME(aout,swap_exec_header_in)
extern struct bfd_hash_entry * NAME(aout,link_hash_newfunc)
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-extern boolean NAME(aout,link_hash_table_init)
+extern bfd_boolean NAME(aout,link_hash_table_init)
PARAMS ((struct aout_link_hash_table *, bfd *,
struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
struct bfd_hash_table *,
extern struct bfd_link_hash_table * NAME(aout,link_hash_table_create)
PARAMS ((bfd *));
-extern boolean NAME(aout,link_add_symbols)
+extern bfd_boolean NAME(aout,link_add_symbols)
PARAMS ((bfd *, struct bfd_link_info *));
-extern boolean NAME(aout,final_link)
+extern bfd_boolean NAME(aout,final_link)
PARAMS ((bfd *, struct bfd_link_info *,
void (*) (bfd *, file_ptr *, file_ptr *, file_ptr *)));
-extern boolean NAME(aout,bfd_free_cached_info)
+extern bfd_boolean NAME(aout,bfd_free_cached_info)
PARAMS ((bfd *));
-/* A.out uses the generic versions of these routines... */
+/* A.out uses the generic versions of these routines... */
#define aout_16_get_section_contents _bfd_generic_get_section_contents
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 \
|| bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, \
abfd) != EXEC_BYTES_SIZE) \
- return false; \
- /* Now write out reloc info, followed by syms and strings */ \
+ return FALSE; \
+ /* Now write out reloc info, followed by syms and strings. */ \
\
if (bfd_get_outsymbols (abfd) != (asymbol **) NULL \
&& bfd_get_symcount (abfd) != 0) \
{ \
if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0)\
- return false; \
+ return FALSE; \
\
if (! NAME(aout,write_syms) (abfd)) \
- return false; \
+ return FALSE; \
} \
\
if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0) \
- return false; \
+ return FALSE; \
if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) \
- return false; \
+ return FALSE; \
\
if (bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0) \
- return false; \
+ return FALSE; \
if (!NAME(aout,squirt_out_relocs) (abfd, obj_datasec (abfd))) \
- return false; \
+ return FALSE; \
}
#endif
+/* Test if a read-only section can be merged with .text. This is
+ possible if:
+
+ 1. Section has file contents and is read-only.
+ 2. The VMA of the section is after the end of .text and before
+ the start of .data.
+ 3. The image is demand-pageable (otherwise, a_text in the header
+ will not reflect the gap between .text and .data). */
+
+#define aout_section_merge_with_text_p(abfd, sec) \
+ (((sec)->flags & (SEC_HAS_CONTENTS | SEC_READONLY)) == \
+ (SEC_HAS_CONTENTS | SEC_READONLY) \
+ && obj_textsec (abfd) != NULL \
+ && obj_datasec (abfd) != NULL \
+ && (sec)->vma >= (obj_textsec (abfd)->vma + \
+ obj_textsec (abfd)->_cooked_size) \
+ && ((sec)->vma + (sec)->_cooked_size) <= obj_datasec (abfd)->vma \
+ && ((abfd)->flags & D_PAGED) != 0)
+
#endif /* ! defined (LIBAOUT_H) */
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