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Руслан Ижбулатов 4fa0265ede Apply substitute-path to relative filenames as well
When source file path is relative to the build directory (which
is considered a good practice and is enforced in certain buildsystems,
such as meson), gdb only applies substitute-path to the build directory
path. Then gdb appends the source file path to the rewritten build
directory path, and tries to access that.

This fails if either two of the following conditions are true:
a) The user didn't specify substitute-path for the build directory.
   This is highly likely, since path substitution for build directories
   is not documented anywhere, and since gdb does not tell[0] the user
   the path to the build directory, just the source file path.
b) The source file path changed.
   This can also easily happen, since a source path that is relative
   to the build directory can include any number of directory names
   that are not part of the program source tree (starting with the
   name of the root directory of the source tree). Gdb will not apply
   substitute-path to that relative path, thus there is no way for
   the user to tell gdb about these changes.

This commit changes the code to apply substitute-path to all filenames,
both relative and absolute. This way it is possible to do things like:

set substitute-path ../foobar-1.0 /src/my/foobar-1.0

which is completely in line with the user expectations.

This might break unusual cases where build directory path is also
relative (is that even possible?) and happens to match the path
to the source directory (i.e. happens to match a substitution rule).

[0]: There's a "maintenance info symtabs" command that does show the names
     of the build directories, but normal users are not required to
     know or use that.

gdb/ChangeLog
2019-06-06  Руслан Ижбулатов <lrn1986@gmail.com>

	* source.c (find_and_open_source): Also rewrite relative file
	names.
2019-06-06 11:49:10 -06:00
bfd [BFD, AArch64] Fix PT_GNU_PROPERTY alignment issue 2019-06-06 12:27:41 +01:00
binutils Revert patch that disables building libctf for non-ELF based targets. 2019-06-03 16:28:15 +01:00
config Add markers for 2.32 branch to NEWS and ChangeLog files. 2019-01-19 15:55:50 +00:00
contrib Update dg-extract-results.* from gcc 2018-08-06 16:05:16 +02:00
cpu cpu: add eBPF cpu description 2019-05-23 19:33:50 +02:00
elfcpp [PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp 2019-05-16 16:17:21 +01:00
etc Update year range in copyright notice of binutils files 2019-01-01 22:06:53 +10:30
gas gas: Add .enqcmd and noenqcmd directives 2019-06-06 07:57:52 -07:00
gdb Apply substitute-path to relative filenames as well 2019-06-06 11:49:10 -06:00
gold Fix problem with ICF where diffs in EH frame info is ignored. 2019-05-11 07:27:10 +08:00
gprof Correct the alpha sorting of the short options in the usage description of the gprof program. 2019-05-20 17:17:24 +01:00
include libctf: fix the type of ctf_enum.cte_value 2019-06-04 17:05:08 +01:00
intl Change version to 2.32.51 and regenerate configure and pot files. 2019-01-19 16:51:42 +00:00
ld [BFD, AArch64] Fix PT_GNU_PROPERTY alignment issue 2019-06-06 12:27:41 +01:00
libctf libctf: eschew %zi format specifier 2019-06-05 13:34:36 +01:00
libdecnumber Merge config/ changes from GCC. 2018-10-31 17:16:41 +00:00
libiberty Pull in patch for libiberty that fixes a stack exhaustion bug when demangling a pathalogically constructed mangled name. 2019-04-10 15:49:36 +01:00
opcodes i386: Check vector length for EVEX vextractfXX and vinsertfXX 2019-06-05 10:27:28 -07:00
readline config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
sim sim: Use host not target byte order for merging and splitting values 2019-04-13 22:21:14 +01:00
texinfo
zlib Merge config/ changes from GCC. 2018-10-31 17:16:41 +00:00
.cvsignore
.gitattributes
.gitignore Add archives and make stamps to the .gitignore file. 2016-09-27 15:10:42 +01:00
ar-lib Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ChangeLog Revert patch that disables building libctf for non-ELF based targets. 2019-06-03 16:28:15 +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 config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
config.rpath
config.sub config.guess,config.sub: synchronize with config project master sources 2019-05-23 18:19:56 +02:00
configure Revert patch that disables building libctf for non-ELF based targets. 2019-06-03 16:28:15 +01:00
configure.ac Revert patch that disables building libctf for non-ELF based targets. 2019-06-03 16:28:15 +01:00
COPYING
COPYING3
COPYING3.LIB
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
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
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Add libctf to top-level MAINTAINERS; add myself as CTF maintainer. 2019-05-28 17:10:04 +01:00
Makefile.def Revert "Sync top level files with versions from gcc." 2019-05-30 11:17:19 +01:00
Makefile.in Revert "Sync top level files with versions from gcc." 2019-05-30 11:17:19 +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 Update release tools with libctf support. 2019-05-29 12:49:13 +01:00
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.