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The per_cu_header_read_in function allows obtaining a filled comp_unit_head object for a given dwarf2_per_cu_data object. If a dwarf2_cu object exists for this dwarf2_per_cu_data, then it just returns a pointer to the comp_unit_head from that dwarf2_cu. Otherwise, it reads the header into a temporary buffer provided by the caller, and returns a pointer to that. Since the dwarf2_per_cu_data::cu link is going to be removed (dwarf2_per_cu_data will become objfile-independent while dwarf2_cu stays objfile-dependent), we cannot rely anymore on returning the header from the dwarf2_cu object. The not too complex solution implemented by this patch is to keep a copy of the header in the dwarf2_per_cu_data object, independent from the copy in dwarf2_cu. The new copy is only used in the addr_size, offset_size and ref_addr_size methods of dwarf2_per_cu_data. There's nothing intrinsic to the comp_unit_head object that prevents it to be shared between two dwarf2_cu objects (belonging to different objfiles) representing the same CU. In other words, I think we could eventually get rid of the copy in dwarf2_cu to only keep the one in dwarf2_per_cu_data. It is not trivial, however, so I have decided not to do it for the moment. gdb/ChangeLog: * dwarf2/read.h (struct dwarf2_per_cu_data) <m_header, m_header_read_in>: New fields. <get_header>: New method. * dwarf2/read.c (per_cu_header_read_in): Remove. (dwarf2_per_cu_data::get_header): New. (dwarf2_per_cu_data::addr_size): Update. (dwarf2_per_cu_data::offset_size): Update. (dwarf2_per_cu_data::ref_addr_size): Update. Change-Id: Id7541fca7562843eba110ece21c4df38d45fca23 |
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bfd | ||
binutils | ||
config | ||
contrib | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gdbserver | ||
gdbsupport | ||
gnulib | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libctf | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ar-lib | ||
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 | ||
multilib.am | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
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. 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.