8e45593ff3
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. |
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bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
.cvsignore | ||
COPYING | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
COPYING3 | ||
COPYING3.LIB | ||
ChangeLog | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
README | ||
README-maintainer-mode | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
setup.com | ||
src-release | ||
symlink-tree | ||
ylwrap |
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.