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2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * archures.c (bfd_architecture): Add bfd_arch_l1om. (bfd_l1om_arch): New. (bfd_archures_list): Add &bfd_l1om_arch. * bfd-in2.h: Regenerated. * config.bfd (targ64_selvecs): Add bfd_elf64_l1om_vec if bfd_elf64_x86_64_vec is supported. Add bfd_elf64_l1om_freebsd_vec if bfd_elf64_x86_64_freebsd_vec is supported. (targ_selvecs): Likewise. * configure.in: Support bfd_elf64_l1om_vec and bfd_elf64_l1om_freebsd_vec. * configure: Regenerated. * cpu-l1om.c: New. * elf64-x86-64.c (elf64_l1om_elf_object_p): New. (bfd_elf64_l1om_vec): Likewise. (bfd_elf64_l1om_freebsd_vec): Likewise. * Makefile.am (ALL_MACHINES): Add cpu-l1om.lo. (ALL_MACHINES_CFILES): Add cpu-l1om.c. * Makefile.in: Regenerated. * targets.c (bfd_elf64_l1om_vec): New. (bfd_elf64_l1om_freebsd_vec): Likewise. (_bfd_target_vector): Add bfd_elf64_l1om_vec and bfd_elf64_l1om_freebsd_vec. binutils/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * readelf.c (guess_is_rela): Handle EM_L1OM. (dump_relocations): Likewise. (get_machine_name): Likewise. (get_section_type_name): Likewise. (get_elf_section_flags): Likewise. (get_symbol_index_type): Likewise. (is_32bit_abs_reloc): Likewise. (is_32bit_pcrel_reloc): Likewise. (is_64bit_abs_reloc): Likewise. (is_64bit_pcrel_reloc): Likewise. (is_none_reloc): Likewise. gas/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * config/tc-i386.c (cpu_arch): Add l1om. (check_cpu_arch_compatible): New. (set_cpu_arch): Use it. (i386_arch): New. (i386_mach): Return bfd_mach_l1om for Intel L1OM. (md_show_usage): Display l1om. (i386_target_format): Return ELF_TARGET_L1OM_FORMAT if cpu_arch_isa_flags.bitfield.cpul1om is set. * config/tc-i386.h (TARGET_ARCH): Use (i386_arch ()). (i386_arch): New. (ELF_TARGET_L1OM_FORMAT): Likewise. * doc/c-i386.texi: Document l1om. gas/testsuite/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * gas/i386/l1om.d: New. * gas/i386/l1om-inval.l: Likewise. * gas/i386/l1om-inval.s: Likewise. * gas/i386/i386.exp: Run l1om-inval and l1om. include/elf/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * common.h (EM_L1OM): New. ld/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * configure.tgt (targ64_extra_emuls): Add elf_l1om if elf_x86_64 is supported. Add elf_l1om_fbsd if elf_x86_64_fbsd is supported. (targ_extra_emuls): Likewise. * Makefile.am (ALL_64_EMULATIONS): Add eelf_l1om.o and eelf_l1om_fbsd.o (eelf_l1om.c): New. (eelf_l1om_fbsd.c): Likewise. * Makefile.in: Regenerated. * emulparams/elf_l1om.sh: New. * emulparams/elf_l1om_fbsd.sh: Likewise. ld/testsuite/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * ld-x86-64/abs-l1om.d: New. * ld-x86-64/protected2-l1om.d: Likewise. * ld-x86-64/protected3-l1om.d: Likewise. * ld-x86-64/x86-64.exp: Run abs-l1om, protected2-l1om and protected3-l1om. opcodes/ 2009-07-25 H.J. Lu <hongjiu.lu@intel.com> * configure.in: Handle bfd_l1om_arch. * disassemble.c (disassembler): Likewise. * configure: Regenerated. * i386-dis.c (print_insn): Handle bfd_mach_l1om and bfd_mach_l1om_intel_syntax. Use 8 bytes per line for Intel L1OM. * i386-gen.c (cpu_flag_init): Set CPU_UNKNOWN_FLAGS to ~CpuL1OM. Add CPU_L1OM_FLAGS. (cpu_flags): Add CpuL1OM. (set_bitfield): Take an argument to set the value field. (process_i386_cpu_flag): Support ~CpuXXX and ~(CpuXXX|CpuYYY). (process_i386_opcode_modifier): Updated. (process_i386_operand_type): Likewise. * i386-init.h: Regenerated. * i386-tbl.h: Likewise. * i386-opc.h (CpuL1OM): New. (CpuXsave): Updated. (i386_cpu_flags): Add cpul1om.
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.