mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-25 19:14:52 +08:00
4cb771f214
Fix issues with diff relocs that have a negative value i.e. sym2 - sym1 where sym2 is lesser than sym1. The assembler generates a diff reloc with symbol as start of section and addend as sym2 offset, and encodes assembly time difference at the reloc offset. The existing relaxation logic adjusts addends if the relaxed insn lies between symbol and addend. That doesn't work for diff relocs where sym2 is less than sym1 *and* the relaxed insn happens to be between sym2 and sym1. Fix the problems by 1. Using signed handling of the difference value (bfd_signed_vma instead of bfd_vma, bfd_{get,set}_signed_xxx instead of bfd_{get,set}_xxx). 2. Not assuming sym2 is bigger than sym1. It instead computes the actual addresses and sets the lower and higher addresses as start and end addresses respectively and then sees if insn is between start and end. 3. Creating a new function elf32_avr_adjust_reloc_if_spans_insn to centralize reloc adjustment, and ensuring diff relocs get adjusted correctly even if their sym + addend doesn't overlap a relaxed insn. It also removes a redundant variable did_pad. It is never set if did_shrink is TRUE, and the code does a early return if did_shrink is FALSE. bfd/ChangeLog 2016-11-15 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> PR ld/20789 * bfd/elf32-avr.c (elf32_avr_adjust_diff_reloc_value): Do signed manipulation of diff value, and don't assume sym2 is less than sym1. (elf32_avr_adjust_reloc_if_spans_insn): New function. (elf32_avr_relax_delete_bytes): Use elf32_avr_adjust_diff_reloc_value, and remove redundant did_pad. ld/ChangeLog 2016-11-15 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> PR ld/20789 * ld/testsuite/ld-avr/pr20789.d: New test. * ld/testsuite/ld-avr/pr20789.s: New test. |
||
---|---|---|
bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
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.