binutils-gdb modified for the FreeChainXenon project
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Nelson Chu 51a8a7c2e3 RISC-V: Fix that IRELATIVE relocs may be inserted to the wrong place.
For the ifunc symbol, which is referenced by GOT rather than PLT relocs,
we should add the dynamic reloc (usually IRELATIVE) into the .rel.iplt
when generating the static executable.  But if we use riscv_elf_append_rela
to add the dynamic relocs into .rela.iplt, this may cause the overwrite
problem.

The reason is that we don't handle the `reloc_index` of .rela.iplt, but
the riscv_elf_append_rela adds the relocs to the place that are calculated
from the reloc_index (in seqential).  Therefore, we may overwrite the
dynamic relocs when the `reloc_index` of .rela.iplt isn't handled correctly.

One solution is that we can add these dynamic relocs (GOT ifunc) from
the last of .rela.iplt section.  But I'm not sure if it is the best way.

	bfd/
	* elfnn-riscv.c (riscv_elf_link_hash_table): Add last_iplt_index.
	(riscv_elf_size_dynamic_sections): Initialize the last_iplt_index.
	(riscv_elf_relocate_section): Use riscv_elf_append_rela.
	(riscv_elf_finish_dynamic_symbol): If the use_elf_append_rela is
	false, then we should add the dynamic relocs from the last of
	the .rela.iplt, and don't use the riscv_elf_append_rela to add.

	ld/
	* testsuite/ld-riscv-elf/ifunc-plt-got-overwrite.s: New testcase.
	* testsuite/ld-riscv-elf/ifunc-plt-got-overwrite.d: Likewise.
	* testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-exe.rd: Likewise.
	* testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-pic.rd: Likewise.
	* testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-pie.rd: Likewise.
	* testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
2020-10-16 10:11:23 +08:00
bfd RISC-V: Fix that IRELATIVE relocs may be inserted to the wrong place. 2020-10-16 10:11:23 +08:00
binutils x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker 2020-10-09 05:13:26 -07:00
config sync libiberty from gcc 2020-09-08 20:12:57 +09:30
contrib Import mklog.py from gcc repo 2020-09-25 10:24:44 -04:00
cpu Fix spelling mistakes 2020-10-05 14:20:15 +01:00
elfcpp gold: Update GNU_PROPERTY_X86_XXX macros 2020-10-13 05:21:05 -07:00
etc texi2pod.pl: import support for @t{...} from gcc 2020-01-15 12:58:09 -05:00
gas x86: Support Intel AVX VNNI 2020-10-14 05:02:31 -07:00
gdb [gdb/testsuite] Fix gdb.ada/mi_catch_ex{,_hand}.exp FAILs 2020-10-14 13:17:58 +02:00
gdbserver Remove unneeded netbsd_add_process() 2020-10-13 16:28:29 +02:00
gdbsupport gdb: Have allocate_target_description return a unique_ptr 2020-10-08 10:14:14 +01:00
gnulib gnulib: Ensure all libraries are used when building gdb/gdbserver 2020-10-09 09:31:43 +01:00
gold gold: Skip some incremental tests 2020-10-13 05:23:13 -07:00
gprof Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
include RISC-V: Support GNU indirect functions. 2020-10-16 10:11:18 +08:00
intl Regen with blessed automake-1.15.1 2020-02-20 13:02:24 +10:30
ld RISC-V: Fix that IRELATIVE relocs may be inserted to the wrong place. 2020-10-16 10:11:23 +08:00
libctf libctf, binutils, include, ld: gettextize and improve error handling 2020-08-27 13:15:43 +01:00
libdecnumber Run autoreconf -vf throughout 2020-07-29 16:03:55 -04:00
libiberty Sync libiberty and include with GCC for get_DW_UT_name. 2020-09-24 22:55:24 +02:00
opcodes x86: Support Intel AVX VNNI 2020-10-14 05:02:31 -07:00
readline Update readline/README to mention patchlevel 2020-06-30 15:17:07 -06:00
sim sim: Fix autoreconf errors in sim/ directory 2020-10-06 11:29:44 +01:00
texinfo
zlib Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
.cvsignore
.gitattributes
.gitignore Add profiling outputs to .gitignore 2019-12-26 06:54:58 +01:00
ar-lib Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ChangeLog gdb/gdbserver: add dependencies for distclean-gnulib 2020-10-14 15:05:14 +01:00
compile
config-ml.in Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.guess Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
config.rpath
config.sub Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
configure config/debuginfod.m4: Use PKG_CHECK_MODULES 2020-07-24 15:16:20 -04:00
configure.ac config/debuginfod.m4: Use PKG_CHECK_MODULES 2020-07-24 15:16:20 -04:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS Update the address of the FSF in the copyright notice of files which were using the old address. 2017-12-14 12:48:55 +00:00
COPYING.NEWLIB
COPYING3
COPYING3.LIB
depcomp
djunpack.bat
install-sh
libtool.m4 Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS Move gdbserver to top level 2020-02-07 08:42:25 -07:00
Makefile.def gdb/gdbserver: add dependencies for distclean-gnulib 2020-10-14 15:05:14 +01:00
Makefile.in gdb/gdbserver: add dependencies for distclean-gnulib 2020-10-14 15:05:14 +01:00
Makefile.tpl Revert "Sync top level files with versions from gcc." 2019-05-30 11:17:19 +01:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am Merge autoconf / automake update changes from GCC. 2018-10-31 17:10:56 +00:00
README
README-maintainer-mode Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
setup.com
src-release.sh Move gdbserver to top level 2020-02-07 08:42:25 -07:00
symlink-tree
test-driver Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ylwrap

		   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.