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Marcus Comstedt fbc09e7af7 RISC-V: Implement support for big endian targets.
RISC-V instruction/code is always little endian, but data might be
big-endian.  Therefore, we can not use the original bfd_get/bfd_put
to get/put the code for big endian targets.  Add new riscv_get_insn
and riscv_put_insn to always get/put code as little endian can resolve
the problem.  Just remember to update them once we have supported
the 48-bit/128-bit instructions in the future patches.

bfd/
    * config.bfd: Added targets riscv64be*-*-*, riscv32be*-*-* and
    riscvbe*-*-*.  Also added riscv_elf[32|64]_be_vec.
    * configure.ac: Handle riscv_elf[32|64]_be_vec.
    * configure: Regenerate.
    * elfnn-riscv.c: Include <limits.h> and define CHAR_BIT for
    riscv_is_insn_reloc.
    (riscv_get_insn): RISC-V instructions are always little endian, but
    bfd_get may be used for big-endian, so add new riscv_get_insn to handle
    the insturctions.
    (riscv_put_insn): Likewsie.
    (riscv_is_insn_reloc): Check if we are relocaing an instruction.
    (perform_relocation): Call riscv_is_insn_reloc to decide if we should
    use riscv_[get|put]_insn or bfd_[get|put].
    (riscv_zero_pcrel_hi_reloc): Use riscv_[get|put]_insn, bfd_[get|put]l32
    or bfd_[get|put]l16 for code.
    (riscv_elf_relocate_section): Likewise.
    (riscv_elf_finish_dynamic_symbol): Likewise.
    (riscv_elf_finish_dynamic_sections): Likewise.
    (_bfd_riscv_relax_call): Likewise.
    (_bfd_riscv_relax_lui): Likewise.
    (_bfd_riscv_relax_align): Likewise.
    (_bfd_riscv_relax_pc): Likewise.
    (riscv_elf_object_p): Handled for big endian.
    (TARGET_BIG_SYM, TARGET_BIG_NAME): Defined.
    * targets.c: Add riscv_elf[32|64]_be_vec.
    (_bfd_target_vector): Likewise.

gas/
    * config/tc-riscv.c (riscv_target_format): Add elf64-bigriscv and
    elf32-bigriscv.
    (install_insn): Always write instructions as little endian.
    (riscv_make_nops): Likewise.
    (md_convert_frag_branch): Likewise.
    (md_number_to_chars): Write data in target endianness.
    (options, md_longopts): Add -mbig-endian and -mlittle-endian options.
    (md_parse_option): Handle the endian options.
    * config/tc-riscv.h: Only define TARGET_BYTES_BIG_ENDIAN if not
    already defined.
    * configure.tgt: Added riscv64be*, riscv32be*, riscvbe*.

ld/
    * configure.tgt: Added riscvbe-*-*, riscv32be*-*-*, riscv64be*-*-*,
    riscv32be*-*-linux*, and riscv64be*-*-linux*.
    * Makefile.am: Added eelf32briscv.c, eelf32briscv_ilp32f.c and
    eelf32briscv_ilp32.c.
    * Makefile.in: Regenerate.
    * emulparams/elf32briscv.sh: Added.
    * emulparams/elf32briscv_ilp32.sh: Likewise.
    * emulparams/elf32briscv_ilp32f.sh: Likewise.
    * emulparams/elf64briscv.sh: Likewise.
    * emulparams/elf64briscv_lp64.sh: Likewise.
    * emulparams/elf64briscv_lp64f.sh: Likewise.
2021-01-06 17:57:52 +08:00
bfd RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
binutils PR27116, Spelling errors found by Debian style checker 2021-01-01 14:36:35 +10:30
config PR27116, Spelling errors found by Debian style checker 2021-01-01 14:36:35 +10:30
contrib
cpu
elfcpp
etc
gas RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
gdb Prevent flickering when redrawing the TUI source window 2021-01-05 14:08:26 +01:00
gdbserver gdb: introduce scoped debug prints 2021-01-04 12:00:54 -05:00
gdbsupport gdb: introduce scoped debug prints 2021-01-04 12:00:54 -05:00
gnulib Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gold PR27140, ppc32 segmentation fault in make_stub 2021-01-03 12:49:47 +10:30
gprof PR27116, Spelling errors found by Debian style checker 2021-01-01 14:36:35 +10:30
include libctf, include: support unnamed structure members better 2021-01-05 14:53:40 +00:00
intl
ld RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
libctf libctf, testsuite: adjust for real return type of ctf_member_count 2021-01-05 19:34:56 +00:00
libdecnumber
libiberty Update libiberty with latest sources from gcc mainline 2021-01-05 12:36:09 +00:00
opcodes PR27116, Spelling errors found by Debian style checker 2021-01-01 14:36:35 +10:30
readline
sim sim: fr30: delete unused testsuite 2021-01-05 19:29:46 -05:00
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ChangeLog libctf: new testsuite 2021-01-05 14:53:40 +00:00
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config.guess Update config.sub and config.guess 2021-01-05 15:55:59 +10:30
config.rpath
config.sub Update config.sub and config.guess 2021-01-05 15:55:59 +10:30
configure
configure.ac
COPYING
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libtool.m4
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MAINTAINERS
Makefile.def libctf: new testsuite 2021-01-05 14:53:40 +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,
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

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the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
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REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.