binutils-gdb modified for the FreeChainXenon project
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Alan Modra 7fcc471ca2 R_MICROMIPS_GPREL7_S2
This reloc is meant for the 16-bit LWGP instruction, 0x6400/0xfc00
match/mask encoding in `micromips_opcodes'.  It is correctly specified
to operate on a half-word by the howtos in elf32-mips.c, elfn32-mips.c
and elf64-mips.c, but is incorrectly subject to shuffle/unshuffle in
code like _bfd_mips_elf32_gprel16_reloc.

Current behaviour when applying the reloc to .byte 0x11,0x22,0x33,0x44
is to apply the reloc to byte 0x22 when big-endian, and to byte 0x33
when little-endian.  Big-endian behaviour is unchanged after this
patch and little-endian correctly applies the reloc to byte 0x11.

The patch also corrects REL addend extraction from section contents,
and overflow checking.  gold had all of the bfd problems with this
reloc and additionally did not apply the rightshift by two.

bfd/
	* elfxx-mips.c (micromips_reloc_shuffle_p): Return false for
	R_MICROMIPS_GPREL7_S2.
	(mips_elf_calculate_relocation): Correct sign extension and
	overflow calculation for R_MICROMIPS_GPREL7_S2.
	(_bfd_mips_elf_relocate_section): Update small-data overflow
	message.
gold/
	* mips.cc (Mips_relocate_functions::should_shuffle_micromips_reloc):
	Return false for R_MICROMIPS_GPREL7_S2.
	(Mips_relocate_functions::mips_reloc_unshuffle): Update comment.
	(Mips_relocate_functions::relgprel): Remove R_MICROMIPS_GPREL7_S2
	handling.
	(Mips_relocate_functions::relgprel7): New function.
	(Target_mips::Relocate::relocate): Adjust to suit.
ld/
	* testsuite/ld-mips-elf/reloc-4.d: Adjust expected error.
	* testsuite/ld-mips-elf/reloc-5.d: Likewise.
2023-12-11 10:42:59 +10:30
bfd R_MICROMIPS_GPREL7_S2 2023-12-11 10:42:59 +10:30
binutils PR31096, nm shows 32bit addresses as 64bit addresses 2023-12-06 12:23:05 +10:30
config libiberty: Disable hwcaps for sha1.o 2023-11-30 10:14:30 +01:00
contrib Import mklog.py from gcc repo 2020-09-25 10:24:44 -04:00
cpu sim --enable-cgen-maint 2023-08-19 12:41:32 +09:30
elfcpp MIPS: Change all E_MIPS_* to EF_MIPS_* 2023-11-10 14:03:17 +00:00
etc Update year range in gprofng copyright notices 2023-01-01 23:26:30 +10:30
gas gas: drop unused fields from struct segment_info_struct 2023-12-01 08:29:33 +01:00
gdb Fix "not not" in Python documentation 2023-12-10 15:26:46 -07:00
gdbserver gdbserver: allow for general 'monitor set debug COMPONENT VALUE' use 2023-12-08 17:52:00 +00:00
gdbsupport gdb: Enable early init of thread pool size 2023-12-04 14:23:17 +00:00
gnulib gnulib: mark configure +x 2023-11-28 12:55:29 -05:00
gold R_MICROMIPS_GPREL7_S2 2023-12-11 10:42:59 +10:30
gprof Finalized intl-update patches 2023-11-15 12:53:04 +00:00
gprofng gprofng: support GNU option syntax in gp-display-html, plus various fixes 2023-11-29 10:18:35 -08:00
include Add some new DW_IDX_* constants 2023-12-10 14:55:22 -07:00
ld R_MICROMIPS_GPREL7_S2 2023-12-11 10:42:59 +10:30
libbacktrace regen config 2023-08-12 10:27:57 +09:30
libctf libctf: adding CU mappings should be idempotent 2023-11-20 12:31:41 +00:00
libdecnumber regen config 2023-08-12 10:27:57 +09:30
libiberty libiberty: Fix build with GCC < 7 2023-12-05 23:34:01 +01:00
libsframe regen config 2023-08-12 10:27:57 +09:30
opcodes s390: Support for jump visualization in disassembly 2023-12-04 17:13:33 +00:00
readline [readline] Fix double free in _rl_scxt_dispose 2023-05-28 10:17:57 +02:00
sim Improve performance of the H8 simulator 2023-12-10 13:26:03 -07:00
texinfo
zlib regen config 2023-08-12 10:27:57 +09:30
.cvsignore
.editorconfig Add top-level .editorconfig file 2022-01-28 08:25:42 -05:00
.gitattributes binutils-gdb/git: highlight whitespace errors in source files 2022-07-25 14:35:41 +01:00
.gitignore Finalized intl-update patches 2023-11-15 12:53:04 +00:00
ar-lib
ChangeLog Finalized intl-update patches 2023-11-15 12:53:04 +00:00
compile
config-ml.in MSP430: Add -fno-exceptions multilib 2023-08-12 10:24:26 +09:30
config.guess kvx: New port. 2023-08-16 14:22:54 +01:00
config.rpath
config.sub kvx: New port. 2023-08-16 14:22:54 +01:00
configure Finalized intl-update patches 2023-11-15 12:53:04 +00:00
configure.ac Finalized intl-update patches 2023-11-15 12:53:04 +00:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
depcomp
djunpack.bat
install-sh
libtool.m4 FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts 2023-08-12 10:25:06 +09:30
ltgcc.m4
ltmain.sh Do not use HAVE_DOS_BASED_FILE_SYSTEM for Cygwin. 2023-08-12 10:25:06 +09:30
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS MAINTAINERS: Update path to readline config.{sub,guess} files 2021-05-24 18:11:49 +02:00
Makefile.def Finalized intl-update patches 2023-11-15 12:53:04 +00:00
Makefile.in Finalized intl-update patches 2023-11-15 12:53:04 +00:00
Makefile.tpl toplevel: Substitute GDCFLAGS instead of using CFLAGS 2023-08-12 10:27:44 +09:30
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode Note that at least dejagnu version 1.5.3 is required in order to be ale to run the testsuites. 2022-10-04 10:54:19 +01:00
SECURITY.txt Add a SECURITY.txt file describing the GNU Binutils' project's stance on security related bugs. 2023-04-20 16:52:11 +01:00
setup.com
src-release.sh Finalized intl-update patches 2023-11-15 12:53:04 +00:00
symlink-tree
test-driver
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.
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see libg++/README, etc.  That'll give you info about this
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tools with one command.  To build all of the tools contained herein,
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	./configure 
	make

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then do:
	make install

(If the configure script can't determine your type of computer, give it
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	CC=gcc ./configure
	make

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	setenv CC gcc
	./configure
	make

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