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Sandra Loosemore 44ed80923a Use better test for usable compiler in ld testsuite. 
The ld testsuite includes numerous tests that depend on being able to
compile and link programs with the C compiler.  Some of these tests
use [which $CC] to check for the presence of the compiler before
proceeding with the test, but run_ld_link_exec_tests and run_cc_link_tests
give ERRORs if compilation fails.  Also, even if $CC is defined and present,
it may not be usable due to missing libraries, etc.

This patch adds a new procedure check_compiler_available that attempts
to build an empty program and caches the result.  Uses of [which $CC]
are replaced with calls to this procedure, and run_ld_link_exec_tests
and run_cc_link_tests now also guard attempts to use $CC.

2019-04-24  Sandra Loosemore  <sandra@codesourcery.com>

	ld/
	* testsuite/config/default.exp: Use [check_compiler_available]
	instead of [which $CC].
	* testsuite/ld-auto-import/auto-import.exp: Likewise.
	* testsuite/ld-cygwin/exe-export.exp: Likewise.
	* testsuite/ld-elf/audit.exp: Likewise.
	* testsuite/ld-elf/compress.exp: Likewise.
	* testsuite/ld-elf/dwarf.exp: Likewise.
	* testsuite/ld-elf/elf.exp: Likewise.
	* testsuite/ld-elf/indirect.exp: Likewise.
	* testsuite/ld-elf/linux-x86.exp: Likewise.
	* testsuite/ld-elf/shared.exp: Likewise.
	* testsuite/ld-elf/tls.exp: Likewise.
	* testsuite/ld-elf/wrap.exp: Likewise.
	* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
	* testsuite/ld-elfvers/vers.exp: Likewise.
	* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
	* testsuite/ld-elfweak/elfweak.exp: Likewise.
	* testsuite/ld-gc/gc.exp: Likewise.
	* testsuite/ld-i386/i386.exp: Likewise.
	* testsuite/ld-i386/no-plt.exp: Likewise.
	* testsuite/ld-i386/tls.exp: Likewise.
	* testsuite/ld-ifunc/ifunc.exp: Likewise.
	* testsuite/ld-mn10300/mn10300.exp: Likewise.
	* testsuite/ld-pe/pe-compile.exp: Likewise.
	* testsuite/ld-pe/pe-run.exp: Likewise.
	* testsuite/ld-pe/pe-run2.exp: Likewise.
	* testsuite/ld-pie/pie.exp: Likewise.
	* testsuite/ld-plugin/lto.exp: Likewise.
	* testsuite/ld-plugin/plugin.exp: Likewise.
	* testsuite/ld-scripts/crossref.exp: Likewise.
	* testsuite/ld-sh/sh.exp: Likewise.
	* testsuite/ld-shared/shared.exp: Likewise.
	* testsuite/ld-size/size.exp: Likewise.
	* testsuite/ld-srec/srec.exp: Likewise.
	* testsuite/ld-undefined/undefined.exp: Likewise.
	* testsuite/ld-unique/unique.exp: Likewise.
	* testsuite/ld-x86-64/mpx.exp: Likewise.
	* testsuite/ld-x86-64/no-plt.exp: Likewise.
	* testsuite/ld-x86-64/tls.exp: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Call
	check_compiler_available before trying to use the compiler.
	(run_cc_link_tests): Likewise.
	(check_compiler_available): New.  Use it instead of [which $CC].
 		2019-04-24 12:14:56 -07:00
..
vers.exp Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
vers.h PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers1.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers1.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers1.map Check symbols with undefine version. 2002-08-08 03:50:18 +00:00
vers1.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers1.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers2.c
…
vers2.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers2.map
…
vers2.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers3.c
…
vers3.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers3.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers4.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers4.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers4a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers4a.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers4a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers5.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers6.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers6.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers6.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers6.ver
…
vers7.c
…
vers7.map
…
vers7a.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers7a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers7a.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers7a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers8.c
…
vers8.map Check symbols with undefine version. 2002-08-08 03:50:18 +00:00
vers8.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers9.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers9.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers9.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers9.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers13.asym
…
vers15.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers15.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers15.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers15.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers16.c
…
vers16.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers16.map
…
vers16a.c
…
vers16a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers16a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers17.c
…
vers17.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers17.map
…
vers17.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers18.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers18.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers18.map Check symbols with undefine version. 2002-08-08 03:50:18 +00:00
vers18.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers18.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers19.c
…
vers19.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers19.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers20.c
…
vers20.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers20.map
…
vers20.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers20a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers21.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers21.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers21.map
…
vers21.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers21.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers22.c 2002-08-08 H.J. Lu <hjl@gnu.org> 2002-08-09 04:42:44 +00:00
vers22.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers22.map 2002-08-08 H.J. Lu <hjl@gnu.org> 2002-08-09 04:42:44 +00:00
vers22.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers22a.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers22a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers22a.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers22a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers22b.c 2002-08-08 H.J. Lu <hjl@gnu.org> 2002-08-09 04:42:44 +00:00
vers22b.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers22b.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers23.c 2002-08-12 H.J. Lu <hjl@gnu.org> 2002-08-12 19:21:59 +00:00
vers23.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers23.ver 2002-08-12 H.J. Lu <hjl@gnu.org> 2002-08-12 19:21:59 +00:00
vers23a.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers23a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers23a.map 2002-08-12 H.J. Lu <hjl@gnu.org> 2002-08-12 19:21:59 +00:00
vers23a.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers23a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers23b.c 2002-08-12 H.J. Lu <hjl@gnu.org> 2002-08-12 19:21:59 +00:00
vers23b.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers23b.map 2002-08-12 H.J. Lu <hjl@gnu.org> 2002-08-12 19:21:59 +00:00
vers23b.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers23c.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers23d.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers24.map bfd/ 2003-02-13 22:14:11 +00:00
vers24.rd Display symbol version when dumping dynrelocs 2014-11-25 06:47:44 -08:00
vers24a.c ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers24b.c bfd/ 2003-02-13 22:14:11 +00:00
vers24c.c ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers25a.c Check in the new files. 2003-04-23 16:40:04 +00:00
vers25a.dsym * ld-elfvers/vers25a.dsym: Really include _? in match. 2010-12-11 12:58:36 +00:00
vers25a.map Check in the new files. 2003-04-23 16:40:04 +00:00
vers25a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers25b.c 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers25b.dsym 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers25b.ver 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers26a.c bfd/ 2003-04-28 16:58:01 +00:00
vers26a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers26a.map bfd/ 2003-04-28 16:58:01 +00:00
vers26a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers26b.c bfd/ 2003-04-28 16:58:01 +00:00
vers26b.dsym 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers26b.ver 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27a.c 2003-05-03 H.J. Lu <hjl@gnu.org> 2003-05-03 16:51:05 +00:00
vers27a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers27a.map 2003-05-03 H.J. Lu <hjl@gnu.org> 2003-05-03 16:51:05 +00:00
vers27a.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers27b.c ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers27b.dsym 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27b.ver 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27c.c 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27c.dsym 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27c.ver 2003-05-06 H.J. Lu <hjl@gnu.org> 2003-05-06 15:55:09 +00:00
vers27d.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers27d.sym PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers27d.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers27d1.c PowerPC64 dot-sym testsuite fixes 2016-12-03 20:59:43 +10:30
vers27d2.c 2003-05-07 H.J. Lu <hongjiu.lu@intel.com> 2003-05-08 05:10:47 +00:00
vers27d3.c 2003-05-07 H.J. Lu <hongjiu.lu@intel.com> 2003-05-08 07:01:11 +00:00
vers27d4.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers27d4.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers28a.c 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28a.dsym 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28a.ver 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28b.c 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28b.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers28b.map 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28b.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers28c.c 2004-03-19 H.J. Lu <hongjiu.lu@intel.com> 2004-03-19 17:02:31 +00:00
vers28c.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers28c.ver * ld-elfvers/vers2.ver: Don't assume any particular index for 2011-06-16 00:42:06 +00:00
vers29.c Missed from previous commit. 2004-10-26 21:00:23 +00:00
vers29.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers29.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers30.c * ldgram.y (vers_defns): Don't lose pattern list before 2005-08-17 10:08:30 +00:00
vers30.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers30.map * ldgram.y (vers_defns): Don't lose pattern list before 2005-08-17 10:08:30 +00:00
vers30.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers31.c * ld.texino: Describe double-quoted string syntax for version 2005-10-13 17:29:57 +00:00
vers31.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers31.map * ld.texino: Describe double-quoted string syntax for version 2005-10-13 17:29:57 +00:00
vers31.ver * ld-elfvers/vers.exp (objdump_versionstuff): Allow versions in 2006-06-06 04:30:21 +00:00
vers32.map 2007-07-10 H.J. Lu <hongjiu.lu@intel.com> 2007-07-10 14:51:55 +00:00
vers32a.c 2007-07-10 H.J. Lu <hongjiu.lu@intel.com> 2007-07-10 14:51:55 +00:00
vers32a.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers32a.ver 2007-07-10 H.J. Lu <hongjiu.lu@intel.com> 2007-07-10 14:51:55 +00:00
vers32b.c 2007-07-10 H.J. Lu <hongjiu.lu@intel.com> 2007-07-10 14:51:55 +00:00
vers32b.dsym ld: elfvers tests: support symbol prefixed targets 2010-12-10 06:08:11 +00:00
vers32b.ver 2007-07-10 H.J. Lu <hongjiu.lu@intel.com> 2007-07-10 14:51:55 +00:00