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Tom de Vries b13057d9ce [gdb/testsuite] Fail in gdb_compile if nopie results in PIE executable
When running gdb.base/dump.exp with --target_board=unix/-fPIE/-pie, we get:
...
Running gdb/testsuite/gdb.base/dump.exp ...
FAIL: gdb.base/dump.exp: dump array as value, intel hex
...

The FAIL happens because although the test specifies nopie, the exec is
in fact compiled as PIE.  The "-fPIE -pie" options specified using the
target_board are interpreted by dejagnu as multilib_flags, and end up
overriding the nopie flags.

Fix this by checking in gdb_compile if the resulting exec is PIE despite of
a nopie setting, and if so return an error:
...
Running gdb/testsuite/gdb.base/dump.exp ...
gdb compile failed, nopie failed to prevent PIE executable

                === gdb Summary ===

nr of untested testcases         1
...

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2019-07-30  Tom de Vries  <tdevries@suse.de>

	PR testsuite/24834
	* lib/gdb.exp (gdb_compile): Fail if nopie results in PIE executable.
	(exec_is_pie): New proc.
2019-07-30 09:42:07 +02:00
bfd Re: Support .gnu.lto_.lto section in ELF files 2019-07-30 13:17:16 +09:30
binutils Support .gnu.lto_.lto section in ELF files (PR 24768). 2019-07-29 10:11:44 +02:00
config
contrib
cpu cpu,opcodes,gas: use %r0 and %r6 instead of %a and %ctf in eBPF disassembler 2019-07-19 15:35:43 +02:00
elfcpp [GOLD] PowerPC relocations for prefix insns 2019-07-13 09:57:50 +09:30
etc
gas Update the Swedish translation for the gas sub-directory. 2019-07-24 15:21:24 +01:00
gdb [gdb/testsuite] Fail in gdb_compile if nopie results in PIE executable 2019-07-30 09:42:07 +02:00
gnulib Fix gnulib/update-gnulib.sh 2019-06-21 13:23:59 +01:00
gold Support .gnu.lto_.lto section in ELF files (PR 24768). 2019-07-29 10:11:44 +02:00
gprof
include [ARC] Update ARC opcode table 2019-07-24 16:46:01 +03:00
intl
ld Ajdust lto-3r and lto-5r tests for powerpc64 2019-07-26 10:02:34 +09:30
libctf libctf: introduce ctf_func_type_{info,args}, ctf_type_aname_raw 2019-07-18 20:53:57 +01:00
libdecnumber
libiberty
opcodes [ARC] Update disassembler opcode selection 2019-07-24 16:52:23 +03:00
readline [readline] Fix heap-buffer-overflow in update_line 2019-07-12 09:53:02 +02:00
sim
texinfo
zlib
.cvsignore
.gitattributes
.gitignore
ar-lib
ChangeLog adjust src-release following the renaming of gdb/common/ to gdb/gdbsupport/ 2019-07-13 18:00:32 -07:00
compile
config-ml.in
config.guess
config.rpath
config.sub
configure
configure.ac
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
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COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
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Makefile.tpl
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missing
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src-release.sh adjust src-release following the renaming of gdb/common/ to gdb/gdbsupport/ 2019-07-13 18:00:32 -07:00
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		   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
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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
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REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.