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Tom de Vries 1e61189d0a [gdb/testsuite] Fix shlib compilation with target board unix/-pie/-fPIE
When running test-case gdb.base/info-shared.exp with target board
unix/-pie/-fPIE, we run into:
...
spawn -ignore SIGHUP gcc -fno-stack-protector \
  outputs/gdb.base/info-shared/info-shared-solib1.c.o \
  -fdiagnostics-color=never -fPIC -shared -Wl,-soname,info-shared-solib1.so \
  -lm -fPIE -pie -o outputs/gdb.base/info-shared/info-shared-solib1.so^M
ld: Scrt1.o: in function `_start':^M
start.S:104: undefined reference to `main'^M
collect2: error: ld returned 1 exit status^M
compiler exited with status 1
...

The intention of the -pie/-fPIE flags is to build and test PIE executables on
platforms where that is not the default.  However, the flags clash with the
flags required to build shared libraries.

Fix this by filtering out PIE-related flags out of the multilib_flags settings
in compile_shared_lib.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-12-16  Tom de Vries  <tdevries@suse.de>

	* lib/gdb.exp (gdb_compile_shlib_1): Factor out of ...
	(gdb_compile_shlib): ... here.  Filter out PIE-related flags.
2020-12-16 18:18:40 +01:00
bfd constify elfNN_bed 2020-12-16 15:17:53 +10:30
binutils Handle DT_GNU_FLAGS_1 in readelf 2020-12-15 18:45:09 +10:30
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 Cosmetic improvements for OSABI access. 2020-12-15 14:37:22 -08:00
etc texi2pod.pl: import support for @t{...} from gcc 2020-01-15 12:58:09 -05:00
gas constify elfNN_bed 2020-12-16 15:17:53 +10:30
gdb [gdb/testsuite] Fix shlib compilation with target board unix/-pie/-fPIE 2020-12-16 18:18:40 +01:00
gdbserver Fix TBI handling for watchpoints 2020-12-16 10:05:56 -03:00
gdbsupport gdbsupport: make use of safe-ctype functions from libiberty 2020-12-11 22:04:28 +00:00
gnulib gnulib: Ensure all libraries are used when building gdb/gdbserver 2020-10-09 09:31:43 +01:00
gold Cosmetic improvements for OSABI access. 2020-12-15 14:37:22 -08:00
gprof Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
include constify elfNN_bed 2020-12-16 15:17:53 +10:30
intl Regen with blessed automake-1.15.1 2020-02-20 13:02:24 +10:30
ld constify elfNN_bed 2020-12-16 15:17:53 +10:30
libctf libctf: Pass format argument to asprintf 2020-11-25 19:11:36 +00:00
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 RISC-V: Add sext.[bh] and zext.[bhw] pseudo instructions. 2020-12-10 10:50:44 +08:00
readline Update readline/README to mention patchlevel 2020-06-30 15:17:07 -06:00
sim Add support for the SDIV and UDIV instructions to the ARM simulator. 2020-12-15 12:40:35 +00:00
texinfo
zlib Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
.cvsignore
.gitattributes
.gitignore Add gnu global outputs to .gitignore 2020-12-02 10:00:27 -05:00
ar-lib Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ChangeLog Add gnu global outputs to .gitignore 2020-12-02 10:00:27 -05:00
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
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 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 Use sha256 for hashes in the release process 2020-10-28 10:35:28 -04:00
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.