Red Hat's newlib C library with support for Jehanne
Go to file
Nick Clifton 71de140011 2010-05-21 Daniel Jacobowitz <dan@codesourcery.com>
Joseph Myers  <joseph@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

        bfd/
        * config.bfd (sh-*-uclinux* | sh[12]-*-uclinux*): Add
        bfd_elf32_shl_vec, and FDPIC vectors to targ_selvecs.
        * configure.in: Handle FDPIC vectors.
        * elf32-sh-relocs.h: Add FDPIC and movi20 relocations.
        * elf32-sh.c (DEFAULT_STACK_SIZE): Define.
        (SYMBOL_FUNCDESC_LOCAL): Define.  Use it instead of
        SYMBOL_REFERENCES_LOCAL for function descriptors.
        (fdpic_object_p): New.
        (sh_reloc_map): Add FDPIC and movi20 relocations.
        (sh_elf_info_to_howto, sh_elf_relocate_section): Handle new invalid
        range.
        (struct elf_sh_plt_info): Add got20 and short_plt.  Update all
        definitions.
        (FDPIC_PLT_ENTRY_SIZE, FDPIC_PLT_LAZY_OFFSET): Define.
        (fdpic_sh_plt_entry_be, fdpic_sh_plt_entry_le, fdpic_sh_plts): New.
        (FDPIC_SH2A_PLT_ENTRY_SIZE, FDPIC_SH2A_PLT_LAZY_OFFSET): Define.
        (fdpic_sh2a_plt_entry_be, fdpic_sh2a_plt_entry_le)
        (fdpic_sh2a_short_plt_be, fdpic_sh2a_short_plt_le, fdpic_sh2a_plts):
        New.
        (get_plt_info): Handle FDPIC.
        (MAX_SHORT_PLT): Define.
        (get_plt_index, get_plt_offset): Handle short_plt.
        (union gotref): New.
        (struct elf_sh_link_hash_entry): Add funcdesc, rename tls_type to
        got_type and adjust all uses.  Add GOT_FUNCDESC.
        (struct sh_elf_obj_tdata): Add local_funcdesc.  Rename
        local_got_tls_type to local_got_type.
        (sh_elf_local_got_type): Renamed from sh_elf_local_got_tls_type.  All
        users changed.
        (sh_elf_local_funcdesc): Define.
        (struct elf_sh_link_hash_table): Add sfuncdesc, srelfuncdesc, fdpic_p,
        and srofixup.
        (sh_elf_link_hash_newfunc): Initialize new fields.
        (sh_elf_link_hash_table_create): Set fdpic_p.
        (sh_elf_omit_section_dynsym): New.
        (create_got_section): Create .got.funcdesc, .rela.got.funcdesc
        and .rofixup.
        (allocate_dynrelocs): Allocate local function descriptors and space
        for R_SH_FUNCDESC-related relocations, and for rofixups.
        Handle GOT_FUNCDESC.  Create fixups.  Handle GOT entries which
        require function descriptors.
        (sh_elf_always_size_sections): Handle PT_GNU_STACK and __stacksize.
        (sh_elf_modify_program_headers): New.
        (sh_elf_size_dynamic_sections): Allocate function descriptors for
        local symbols.  Allocate .got.funcdesc contents.  Allocate rofixups.
        Handle local GOT entries of type GOT_FUNCDESC.  Create fixups for
        local GOT entries.  Ensure that FDPIC libraries always have a PLTGOT
        entry in the .dynamic section.
        (sh_elf_add_dyn_reloc, sh_elf_got_offset, sh_elf_initialize_funcdesc)
        (sh_elf_add_rofixup, sh_elf_osec_to_segment)
        (sh_elf_osec_readonly_p, install_movi20_field): New functions.
        (sh_elf_relocate_section): Handle new relocations, R_SH_FUNCDESC,
        R_SH_GOTFUNCDESC and R_SH_GOTOFFFUNCDESC.  Use sh_elf_got_offset
        and .got.plt throughout to find _GLOBAL_OFFSET_TABLE_.  Add rofixup
        read-only section warnings.  Handle undefined weak symbols.  Generate
        fixups for R_SH_DIR32 and GOT entries.  Check for cross-segment
        relocations and clear EF_SH_PIC.  Handle 20-bit relocations.
        Always generate R_SH_DIR32 for FDPIC instead of R_SH_RELATIVE.
        (sh_elf_gc_sweep_hook): Handle R_SH_FUNCDESC, R_SH_GOTOFF20,
        R_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC20, and R_SH_GOTOFFFUNCDESC.
        Handle 20-bit relocations.
        (sh_elf_copy_indirect_symbol): Copy function descriptor reference
        counts.
        (sh_elf_check_relocs): Handle new relocations.  Make symbols
        dynamic for FDPIC relocs.  Account for rofixups.  Error for FDPIC
        symbol mismatches.  Allocate a GOT for R_SH_DIR32. Allocate fixups
        for R_SH_DIR32.
        (sh_elf_copy_private_data): Copy PT_GNU_STACK size.
        (sh_elf_merge_private_data): Copy initial flags.  Do not clobber
        non-mach flags.  Set EF_SH_PIC for FDPIC.  Reject FDPIC mismatches.
        (sh_elf_finish_dynamic_symbol): Do not handle got_funcdesc entries
        here.  Rename sgot to sgotplt and srel to srelplt.  Handle short_plt,
        FDPIC descriptors, and got20.  Create R_SH_FUNCDESC_VALUE for FDPIC.
        Use install_movi20_field.  Rename srel to srelgot.  Always generate
        R_SH_DIR32 for FDPIC instead of R_SH_RELATIVE.
        (sh_elf_finish_dynamic_sections): Fill in the GOT pointer in rofixup.
        Do not fill in reserved GOT entries for FDPIC.  Correct DT_PLTGOT.
        Rename sgot to sgotplt.  Assert that the right number of rofixups
        and dynamic relocations were allocated.
        (sh_elf_use_relative_eh_frame, sh_elf_encode_eh_address): New.
        (elf_backend_omit_section_dynsym): Use sh_elf_omit_section_dynsym.
        (elf_backend_can_make_relative_eh_frame)
        (elf_backend_can_make_lsda_relative_eh_frame)
        (elf_backend_encode_eh_address): Define.
        (TARGET_BIG_SYM, TARGET_BIG_NAME, TARGET_LITTLE_SYM)
        (TARGET_LITTLE_NAME, elf_backend_modify_program_headers, elf32_bed):
        Redefine for FDPIC vector.
        * reloc.c: Add SH FDPIC and movi20 relocations.
        * targets.c (_bfd_target_vector): Add FDPIC vectors.
        * configure, bfd-in2.h, libbfd.h: Regenerated.

        binutils/
        * readelf.c (get_machine_flags): Handle EF_SH_PIC and EF_SH_FDPIC.

        gas/
        * config/tc-sh.c (sh_fdpic): New.
        (sh_check_fixup): Handle relocations on movi20.
        (parse_exp): Do not reject PIC operators here.
        (build_Mytes): Check for unhandled PIC operators here.  Use
        sh_check_fixup for movi20.
        (enum options): Add OPTION_FDPIC.
        (md_longopts, md_parse_option, md_show_usage): Add --fdpic.
        (sh_fix_adjustable, md_apply_fix): Handle FDPIC and movi20 relocations.
        (sh_elf_final_processing): Handle --fdpic.
        (sh_uclinux_target_format): New.
        (sh_parse_name): Handle FDPIC relocation operators.
        * config/tc-sh.h (TARGET_FORMAT): Define specially for TE_UCLINUX.
        (sh_uclinux_target_format): Declare for TE_UCLINUX.
        * configure.tgt (sh-*-uclinux* | sh[12]-*-uclinux*): Set
        em=uclinux.
        * doc/c-sh.texi (SH Options): Document --fdpic.

        gas/testsuite/
        * gas/sh/basic.exp: Run new tests.  Handle uClinux like Linux.
        * gas/sh/fdpic.d: New file.
        * gas/sh/fdpic.s: New file.
        * gas/sh/reg-prefix.d: Force big-endian.
        * gas/sh/sh2a-pic.d: New file.
        * gas/sh/sh2a-pic.s: New file.
        * lib/gas-defs.exp (is_elf_format): Include sh*-*-uclinux*.

        include/elf/
        * sh.h (EF_SH_PIC, EF_SH_FDPIC): Define.
        (R_SH_FIRST_INVALID_RELOC_6, R_SH_LAST_INVALID_RELOC_6): New.  Adjust
        other invalid ranges.
        (R_SH_GOT20, R_SH_GOTOFF20, R_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC20)
        (R_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC20, R_SH_FUNCDESC)
        (R_SH_FUNCDESC_VALUE): New.

        ld/
        * Makefile.am (ALL_EMULATIONS): Add eshelf_fd.o and eshlelf_fd.o.
        (eshelf_fd.c, eshlelf_fd.c): New rules.
        * Makefile.in: Regenerate.
        * configure.tgt (sh-*-uclinux*): Add shelf_fd and shlelf_fd
        emulations.
        * emulparams/shelf_fd.sh: New file.
        * emulparams/shlelf_fd.sh: New file.
        * emulparams/shlelf_linux.sh: Update comment.

        ld/testsuite/
        * ld-sh/sh.exp: Handle uClinux like Linux.
        * lib/ld-lib.exp (is_elf_format): Include sh*-*-uclinux*.
        * ld-sh/fdpic-funcdesc-shared.d: New file.
        * ld-sh/fdpic-funcdesc-shared.s: New file.
        * ld-sh/fdpic-funcdesc-static.d: New file.
        * ld-sh/fdpic-funcdesc-static.s: New file.
        * ld-sh/fdpic-gotfuncdesc-shared.d: New file.
        * ld-sh/fdpic-gotfuncdesc-shared.s: New file.
        * ld-sh/fdpic-gotfuncdesc-static.d: New file.
        * ld-sh/fdpic-gotfuncdesc-static.s: New file.
        * ld-sh/fdpic-gotfuncdesci20-shared.d: New file.
        * ld-sh/fdpic-gotfuncdesci20-shared.s: New file.
        * ld-sh/fdpic-gotfuncdesci20-static.d: New file.
        * ld-sh/fdpic-gotfuncdesci20-static.s: New file.
        * ld-sh/fdpic-goti20-shared.d: New file.
        * ld-sh/fdpic-goti20-shared.s: New file.
        * ld-sh/fdpic-goti20-static.d: New file.
        * ld-sh/fdpic-goti20-static.s: New file.
        * ld-sh/fdpic-gotofffuncdesc-shared.d: New file.
        * ld-sh/fdpic-gotofffuncdesc-shared.s: New file.
        * ld-sh/fdpic-gotofffuncdesc-static.d: New file.
        * ld-sh/fdpic-gotofffuncdesc-static.s: New file.
        * ld-sh/fdpic-gotofffuncdesci20-shared.d: New file.
        * ld-sh/fdpic-gotofffuncdesci20-shared.s: New file.
        * ld-sh/fdpic-gotofffuncdesci20-static.d: New file.
        * ld-sh/fdpic-gotofffuncdesci20-static.s: New file.
        * ld-sh/fdpic-gotoffi20-shared.d: New file.
        * ld-sh/fdpic-gotoffi20-shared.s: New file.
        * ld-sh/fdpic-gotoffi20-static.d: New file.
        * ld-sh/fdpic-gotoffi20-static.s: New file.
        * ld-sh/fdpic-plt-be.d: New file.
        * ld-sh/fdpic-plt-le.d: New file.
        * ld-sh/fdpic-plt.s: New file.
        * ld-sh/fdpic-plti20-be.d: New file.
        * ld-sh/fdpic-plti20-le.d: New file.
        * ld-sh/fdpic-stack-default.d: New file.
        * ld-sh/fdpic-stack-size.d: New file.
        * ld-sh/fdpic-stack.s: New file.
2010-05-25 14:12:41 +00:00
config Sync from gcc mainline. 2010-02-15 10:37:55 +00:00
etc Regenerate tree using Autoconf 2.64 and Automake 1.11. 2009-08-22 16:56:38 +00:00
include 2010-05-21 Daniel Jacobowitz <dan@codesourcery.com> 2010-05-25 14:12:41 +00:00
libgloss * rs6000/Makefile.in: Remove xil-exit.o. 2010-05-03 15:15:53 +00:00
newlib * libc/string/strsignal.c (strsignal): Avoid duplicate case statement where 2010-05-18 14:52:38 +00:00
texinfo * texinfo/texinfo.tex: Update to version 2009-03-28.05. 2009-04-21 12:36:46 +00:00
winsup 2010-04-27 Danny Smith <dannysmith@users.sourceforge.net> 2010-05-19 02:59:46 +00:00
COPYING 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
COPYING.LIB 2005-07-16 Kelley Cook <kcook@gcc.gnu.org> 2005-07-16 02:41:34 +00:00
COPYING.LIBGLOSS 2009-12-17 Jeff Johnston <jjohnstn@redhat.com> 2009-12-17 21:12:49 +00:00
COPYING.NEWLIB 2009-12-17 Jeff Johnston <jjohnstn@redhat.com> 2009-12-17 21:12:49 +00:00
COPYING3 * COPYING3: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
COPYING3.LIB * COPYING3: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
ChangeLog * configure.ac (--enable-gold): Support both, both/gold and 2010-04-27 14:24:37 +00:00
MAINTAINERS * MAINTAINERS: Perform some obvious fixups. 2009-08-19 02:53:50 +00:00
Makefile.def * configure.ac (--enable-gold): Support both, both/gold and 2010-04-27 14:24:37 +00:00
Makefile.in * configure.ac (--enable-gold): Support both, both/gold and 2010-04-27 14:24:37 +00:00
Makefile.tpl * Makefile.tpl: Use "-exec rm {}" rather than "-delete" to delete 2010-02-17 11:02:54 +00:00
README 19990502 sourceware import 1999-05-03 07:29:06 +00:00
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:06 +00:00
compile Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
config-ml.in Merge from GCC: 2008-11-27 17:14:58 +00:00
config.guess * config.sub: Update to version 2010-03-22. 2010-03-23 14:27:19 +00:00
config.rpath * config.rpath: Add AIX 6 support. 2008-03-13 19:27:44 +00:00
config.sub * config.sub: Update to version 2010-03-22. 2010-03-23 14:27:19 +00:00
configure * configure.ac (--enable-gold): Support both, both/gold and 2010-04-27 14:24:37 +00:00
configure.ac * configure.ac (--enable-gold): Support both, both/gold and 2010-04-27 14:24:37 +00:00
depcomp Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
djunpack.bat * djunpack.bat: Use ".." quoting in Sed command, for the sake of 2009-03-27 13:37:09 +00:00
install-sh Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
libtool.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
ltgcc.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltmain.sh Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
ltoptions.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
ltsugar.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltversion.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
lt~obsolete.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
makefile.vms 19990502 sourceware import 1999-05-03 07:29:06 +00:00
missing Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
mkdep * mkdep: New file. 1999-08-08 17:46:02 +00:00
mkinstalldirs Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
move-if-change Import from Autoconf sources: 2005-09-07 00:42:19 +00:00
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release * src-release (BINUTILS_SUPPORT_DIRS): Remove mkdep and depcomp. 2008-06-18 23:20:43 +00:00
symlink-tree 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
ylwrap Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00

README

		   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,
and OS.)

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
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.