diff options
Diffstat (limited to 'bfd/libaout.h')
| -rw-r--r-- | bfd/libaout.h | 71 |
1 files changed, 45 insertions, 26 deletions
diff --git a/bfd/libaout.h b/bfd/libaout.h index 38587b3..7dc44a2 100644 --- a/bfd/libaout.h +++ b/bfd/libaout.h @@ -4,21 +4,21 @@ 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 @@ -282,10 +282,10 @@ enum machine_type { 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 */ @@ -377,7 +377,7 @@ struct aoutdata { 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; @@ -387,16 +387,16 @@ struct aoutdata { 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 @@ -406,7 +406,7 @@ struct aoutdata { 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, @@ -471,7 +471,7 @@ struct aout_data_struct { #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 @@ -489,7 +489,7 @@ struct aout_section_data_struct #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 bfd_boolean NAME(aout,squirt_out_relocs) PARAMS ((bfd *, asection *)); @@ -612,7 +612,7 @@ extern bfd_boolean NAME(aout,final_link) 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 @@ -648,7 +648,7 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info) || 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 */ \ + /* Now write out reloc info, followed by syms and strings. */ \ \ if (bfd_get_outsymbols (abfd) != (asymbol **) NULL \ && bfd_get_symcount (abfd) != 0) \ @@ -672,4 +672,23 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info) } #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) */ |