Various changes to get linker working again for a.out:

 * don't set/adjust section file positions or vmas more than once
 * use correct page size and segment size when calculating them
 * deal with some variations in a.out implementations
Tested on sun4 and sun4->sun3 so far, will be testing further but
needed to get wider exposure&testing.  See ChangeLog for details.

Also:
* coffcode.h (coff_write_relocs): Write out swapped reloc, not
pre-swapped version.
* hosts/sparc.h (abort, exit): Hide these names if compiling with
gcc version 2, to avoid warnings.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 4eed47d19e64b3f6529f31e605aaa12264c2525d..2d9fa251829e830a6df166d726a85ef1614583b3 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,57 @@
+Tue Jun 16 06:28:21 1992  Ken Raeburn  (Raeburn@Cygnus.COM)
+
+       * targets.c (struct bfd_target): Added field for target-specific
+       (but not file-specific) data, for distinguishing minor
+       characteristics between (e.g.) a.out formats.
+
+       * section.c (struct sec): New field user_set_vma indicates vma
+       field should be heeded, not assumed to be unset.
+       (STD_SECTION): Initialize that field of standard sections to zero.
+       * bfd-in.h (bfd_set_section_vma): Set user_set_vma to true.
+
+       * coffcode.h (coff_write_relocs): Write out swapped reloc, not
+       pre-swapped version.
+
+       * archures.c (struct bfd_arch_info): Fixed order of comment and
+       field decl.  New fields indicate size of page and segment for
+       architecture.
+       * cpu-m68k.c (N): Fill in values.
+       * cpu-sparc.c (arch_info_struct): Ditto.
+
+       * libaout.h (struct aout_backend_data): Various bits of data (not
+       all used currently) with characteristics of a.out implementation.
+       Important field for now is text_includes_header, indicating that
+       the text section starts immediately after the file header, which
+       gets mapped in with it.
+       (struct aout_data): New fields indicate whether vma has been
+       adjusted yet (not yet used), and what magic number will be used in
+       the output file (should go away in favor of vma_adjusted).
+       (WRITE_HEADERS): Code for dealing with section sizes and related
+       header fields replaced with call to adjust_sizes_and_vmas.
+       * aoutx.h (some_aout_object_p): Fill in magic number field.
+       Set WP_TEXT flag for ZMAGIC as well as NMAGIC files.
+       (set_arch_mach): Set page size and segment size once CPU
+       type is known.
+       (adjust_sizes_and_vmas): New function; has much code moved
+       from set_section_contents and WRITE_HEADERS.  Sets or adjusts vma
+       and size parameters, as well as many header fields, after deciding
+       on magic number for output file.  Checks to ensure that this
+       adjustment has only been done once.
+       (set_section_contents): Call adjust_sizes_and_vmas instead of
+       doing much of the work here.
+
+       * aout-target.h (MY_make_debug_symbol, MY_backend_data): Provide
+       default (null) values of these fields.
+       * aoutf1.h (sunos4_write_object_contents): Don't override a_text
+       value in exec header.
+       (sunos4_aout_backend, MY_backend_data): Define backend data
+       indicating file header is included in text section.
+
+       * aoutf1.h (MY_reloc_howto_type_lookup): Fix typo.
+
+       * hosts/sparc.h (abort, exit): Hide these names if compiling with
+       gcc version 2, to avoid warnings.
+
 Mon Jun 15 12:26:56 1992  Fred Fish  (fnf@cygnus.com)
 
        * config/ncr3000.mh (INSTALL, RANLIB):  Don't use /usr/ucb/install,