* coff-alpha.c (alpha_ecoff_backend_data): Initialise fields which
control long section name handling with ECOFF_NO_LONG_SECTION_NAMES.
* coff-mips.c (mips_ecoff_backend_data): Likewise.
* coff-rs6000.c (bfd_xcoff_backend_data): Initialise fields which
control long section name handling with XCOFF_NO_LONG_SECTION_NAMES.
(bfd_pmac_xcoff_backend_data): Likewise.
* coff64-rs6000.c (bfd_xcoff_backend_data): Likewise.
(bfd_xcoff_aix5_backend_data): Likewise.
(xcoff64_write_object_contents): Delete unused long_section_names
local variable.
* coff-sh.c (bfd_coff_small_swap_table): Initialise long section
name members using COFF_DEFAULT_LONG_SECTION_NAMES and make entire
struct non-const.
* coffcode.h (documentation): Update to describe long section names.
(COFFLONGSECTIONCATHELPER): New helper macro.
(BLANKOR1TOODD): Likewise.
(COFF_ENABLE_LONG_SECTION_NAMES): Likewise.
(COFF_LONG_SECTION_NAMES_SETTER): Likewise.
(COFF_DEFAULT_LONG_SECTION_NAMES): Likewise.
(bfd_coff_set_long_section_names_allowed): New function.
(bfd_coff_set_long_section_names_disallowed): Likewise.
(struct bfd_coff_backend_data): Add new backend hook function
pointer _bfd_coff_set_long_section_names.
(bfd_coff_set_long_section_names): New backend hook.
(coff_write_object_contents): Only generate long section names if
bfd_coff_long_section_names() indicates they are currently enabled.
(bfd_coff_std_swap_table): Make non-const, and initialise long
section name fields using COFF_DEFAULT_LONG_SECTION_NAMES.
(ticoff0_swap_table): Likewise to both.
(ticoff1_swap_table): Again, likewise to both.
* coffgen.c (make_a_section_from_file): Allow long section names
as inputs even if not currently allowed for outputs.
* ecoff.c (_bfd_ecoff_no_long_sections): New function.
* efi-app-ia32.c (COFF_LONG_SECTION_NAMES): Define to 0, not blank.
* efi-app-ia64.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-app-x86_64.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-bsdrv-ia32.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-bsdrv-ia64.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-bsdrv-x86_64.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-rtdrv-ia32.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-rtdrv-ia64.c (COFF_LONG_SECTION_NAMES): Likewise.
* efi-rtdrv-x86_64.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-arm.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-i386.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-mcore.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-mips.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-ppc.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-sh.c (COFF_LONG_SECTION_NAMES): Likewise.
* pei-x86_64.c (COFF_LONG_SECTION_NAMES): Likewise.
* libcoff-in.h: Update copyright year to cause updated copyright
year in generated libcoff.h, and fix typo.
* libcoff.h: Regenerated.
* libecoff.h (ECOFF_NO_LONG_SECTION_NAMES): New macro.
(_bfd_ecoff_no_long_sections): Add prototype.
* libxcoff.h (XCOFF_NO_LONG_SECTION_NAMES): New macro.
* pe-mips.c (COFF_LONG_SECTION_NAMES): Define empty if not already
defined by an including .c file.
* ticoff.h (ticoff0_swap_table): Make non-const, and initialise
long section name fields using COFF_DEFAULT_LONG_SECTION_NAMES.
(ticoff1_swap_table): Likewise to both.
ld/ChangeLog
* ld.texinfo: Update to mention long section name options.
* NEWS: Mention new behaviour and command-line options.
* pe-dll.c (pe_use_coff_long_section_names): New global variable.
(pe_output_file_set_long_section_names): New function.
(pe_dll_build_sections): Call it on output BFDs.
(pe_exe_build_sections): Likewise.
(pe_dll_fill_sections): Likewise.
(pe_exe_fill_sections): Likewise.
* pe-dll.h (pe_use_coff_long_section_names): Declare extern.
(pe_output_file_set_long_section_names): Add prototype.
* pep-dll.c (pe_use_coff_long_section_names): Define pep_ alias.
(pe_output_file_set_long_section_names): Likewise.
* pep-dll.h (pep_use_coff_long_section_names): Declare extern.
(pep_output_file_set_long_section_names): Add prototype.
* pe.em (OPTION_ENABLE_LONG_SECTION_NAMES): New getopt value macro.
(OPTION_DISABLE_LONG_SECTION_NAMES): Likewise.
(gld${EMULATION_NAME}_add_options): Add new options to xtra_long[].
(gld_${EMULATION_NAME}_list_options): Describe them.
(gld${EMULATION_NAME}_handle_option): Set or clear global
pe_use_coff_long_section_names flag when options recognised.
(gld_${EMULATION_NAME}_after_open): En/disable long section names
for main output bfd by calling pe_output_file_set_long_section_names.
* pep.em (enum options): Extend enum with new getopt option values.
(gld${EMULATION_NAME}_add_options): Add new options to xtra_long[].
(gld_${EMULATION_NAME}_list_options): Describe them.
(gld${EMULATION_NAME}_handle_option): Set or clear global
pe_use_coff_long_section_names flag when options recognised.
(gld_${EMULATION_NAME}_after_open): En/disable long section names
for main output bfd by calling pep_output_file_set_long_section_names.
ld/testsuite/ChangeLog
* ld-pe/longsecn-1.d: New test file.
* ld-pe/longsecn-2.d: Likewise.
* ld-pe/longsecn-3.d: Likewise.
* ld-pe/longsecn-4.d: Likewise.
* ld-pe/longsecn-5.d: Likewise.
* ld-pe/longsecn.d: Likewise.
* ld-pe/longsecn.exp: New test control script.
* ld-pe/longsecn.s: New test source file.
README for LD
This is the GNU linker. It is distributed with other "binary
utilities" which should be in ../binutils. See ../binutils/README for
more general notes, including where to send bug reports.
There are many features of the linker:
* The linker uses a Binary File Descriptor library (../bfd)
that it uses to read and write object files. This helps
insulate the linker itself from the format of object files.
* The linker supports a number of different object file
formats. It can even handle multiple formats at once:
Read two input formats and write a third.
* The linker can be configured for cross-linking.
* The linker supports a control language.
* There is a user manual (ld.texinfo), as well as the
beginnings of an internals manual (ldint.texinfo).
Installation
============
See ../binutils/README.
If you want to make a cross-linker, you may want to specify
a different search path of -lfoo libraries than the default.
You can do this by setting the LIB_PATH variable in ./Makefile
or using the --with-lib-path configure switch.
To build just the linker, make the target all-ld from the top level
directory (one directory above this one).
Porting to a new target
=======================
See the ldint.texinfo manual.
Reporting bugs etc
===========================
See ../binutils/README.
Known problems
==============
The Solaris linker normally exports all dynamic symbols from an
executable. The GNU linker does not do this by default. This is
because the GNU linker tries to present the same interface for all
similar targets (in this case, all native ELF targets). This does not
matter for normal programs, but it can make a difference for programs
which try to dlopen an executable, such as PERL or Tcl. You can make
the GNU linker export all dynamic symbols with the -E or
--export-dynamic command line option.
HP/UX 9.01 has a shell bug that causes the linker scripts to be
generated incorrectly. The symptom of this appears to be "fatal error
- scanner input buffer overflow" error messages. There are various
workarounds to this:
* Build and install bash, and build with "make SHELL=bash".
* Update to a version of HP/UX with a working shell (e.g., 9.05).
* Replace "(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc)" in
genscripts.sh with "sh ${srcdir}..." (no parens) and make sure the
emulparams script used exports any shell variables it sets.