diff options
Diffstat (limited to 'bfd/coffcode.h')
| -rw-r--r-- | bfd/coffcode.h | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/bfd/coffcode.h b/bfd/coffcode.h index 069acda..152846f 100644 --- a/bfd/coffcode.h +++ b/bfd/coffcode.h @@ -2682,12 +2682,44 @@ coff_set_section_contents (abfd, section, location, offset, count) coff_compute_section_file_positions (abfd); #ifdef _LIB - /* If this is a .lib section, bump the vma address so that it - winds up being the number of .lib sections output. This is - right for SVR3.2. Shared libraries should probably get more - generic support. Ian Taylor <ian@cygnus.com>. */ - if (strcmp (section->name, _LIB) == 0) - ++section->lma; + + /* The physical address field of a .lib section is used to hold the + number of shared libraries in the section. This code counts the + number of sections being written, and increments the lma field + with the number. + + I have found no documentation on the contents of this section. + Experimentation indicates that the section contains zero or more + records, each of which has the following structure: + + - a (four byte) word holding the length of this record, in words, + - a word that always seems to be set to "2", + - the path to a shared library, null-terminated and then padded + to a whole word boundary. + + bfd_assert calls have been added to alert if an attempt is made + to write a section which doesn't follow these assumptions. The + code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe + <robertl@arnet.com> (Thanks!). + + Gvran Uddeborg <gvran@uddeborg.pp.se> */ + + if (strcmp (section->name, _LIB) == 0) + { + bfd_byte *rec, *recend; + + rec = (bfd_byte *) location; + recend = rec + count; + while (rec < recend) + { + BFD_ASSERT (bfd_get_32 (abfd, rec + 4) == 2); + ++section->lma; + rec += bfd_get_32 (abfd, rec) / 4; + } + + BFD_ASSERT (rec == recend); + } + #endif /* Don't write out bss sections - one way to do this is to |