Martin Schwidefsky 0451c93c40 * elf32-s390: Major rework that introduces all recent changes to
the s390 backends.  Get a closer match to elf32-i386.
(elf_s390_relocate_section): Make use of dynamic section short-cuts.
Localise vars, and delay setting.  Better error reporting, replace
BFD_ASSERT with abort.  Check ELF_LINK_HASH_DEF_DYNAMIC to see if a
symbol is not defined in the regular object file and tread the weak
definition as the normal one.  Don't discard relocs for undefweak or
undefined symbols and check !DEF_REGULAR as well as DEF_DYNAMIC in
test for avoided copy relocs.  Reinstate fudge for unresolved relocs
in debugging sections.
(elf32_s390_adjust_dynamic_symbol): Handle nocopyreloc.  Don't do copy
reloc processing for weakdefs.  Remove redundant casts and aborts.
Delay setting of vars until needed.  Move creation of dynamic symbols
and allocation of .plt and .rela.plt to allocate_dynrelocs.  Replace
BFD_ASSERT with abort.  Discard .plt entries for everything with
plt.refcount <= 0.
(elf_s390_check_relocs):  Don't allocate space for dynamic relocs,
.got or .relgot here but do it in allocate_dynrelocs.  Reference count
possible .plt and .got entries.  Don't test input section SEC_READONLY
here to try to avoid copy relocs, and keep dyn_relocs regardless of
ELF_LINK_NON_GOT_REF.  Don't set DF_TEXTREL here.  Delay setting of
variables until needed.  Remove separate switch stmt for creating .got
section.  Initialise local_got_refcounts to 0.  Cache pointer to
"sreloc" section in elf_section_data. Tweak condition under which .got
created.  Report files with bad relocation section names.
(elf_s390_finish_dynamic_symbol): Don't copy relocs for symbols that
have been forced local.  Use same test to decide if we can use a
relative reloc for got as elf_s390_relocate_section.  Expand SHN_UNDEF
comment.  Move expressions out of function calls.  Replace BFD_ASSERT
with abort.
(elf_s390_finish_dynamic_sections): Migrate common code out of switch
statement.  Replace BFD_ASSERT with abort.
(elf_s390_size_dynamic_sections): Call readonly_dynrelocs. Rename "i"
to "ibfd".  Allocate space for local dyn relocs.  Use DF_TEXTREL flag
instead of looking up section names for DT_TEXTREL.  Replace
BFD_ASSERT with abort.  Zero out the dynamic allocated content space.
Add a comment to remind us that one day this ought to be fixed.
(struct elf_s390_link_hash_entry): Rename "root" to "elf".
(struct elf_s390_link_hash_table): Likewise.
(elf_s390_link_hash_newfunc): Rename to link_hash_newfunc and get
rid of unnecessary casts.
(struct elf_s390_dyn_relocs): Add "sec", and "pc_count" fields.
Remove "section" field.
(elf_s390_gc_sweep_hook): Sweep dyn_relocs and local_dynrel.
Reference count possible .plt entries.  Don't deallocate .got and
.relgot space here.
(struct elf_s390_pcrel_relocs_copied): Rename to elf_s390_dyn_relocs.
Update comment.
(struct elf_s390_link_hash_entry): Rename pcrel_relocs_copied to
dyn_relocs.
(elf_s390_discard_copies):  Delete.
(elf_s390_link_hash_traverse): Delete.
(bfd_elf32_bfd_final_link): Delete.  (ie. use regular final link
rather than gc variety).
(struct elf_s390_link_hash_table): Add sgot, sgotplt, srelgot, splt,
srelplt, sdynbss, srelbss fields.
(elf_s390_link_hash_table_create): Init them.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Define.
(allocate_dynrelocs): New function.
(create_got_section): New function.
(elf_backend_can_refcount): Define.
(elf_backend_copy_indirect_symbol): Define.
(elf_s390_copy_indirect_symbol): New function.
(elf_s390_create_dynamic_sections): New function.
(readonly_dynrelocs): New function.
* elf64-s390x: Likewise.
2001-11-08 18:45:46 +00:00
2001-02-10 00:58:38 +00:00
2001-03-26 21:42:48 +00:00
2001-11-08 18:32:08 +00:00
2001-11-02 19:09:06 +00:00
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2001-11-04 19:06:38 +00:00
2001-11-05 01:12:22 +00:00
2001-10-26 04:37:54 +00:00
2001-10-30 15:20:14 +00:00
2001-05-14 16:40:49 +00:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
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If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
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	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
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