Use better test for usable compiler in ld testsuite.
authorSandra Loosemore <sandra@codesourcery.com>
Wed, 24 Apr 2019 19:14:56 +0000 (12:14 -0700)
committerSandra Loosemore <sandra@codesourcery.com>
Wed, 24 Apr 2019 19:14:56 +0000 (12:14 -0700)
commit44ed80923ab89e141120defa8c1209b69869a7ac
treeefba27df79b200f36c6d22a6986db4109aa16706
parent596179f77c803d3fc5586465f4ece6503055d035
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].
41 files changed:
ld/ChangeLog
ld/testsuite/config/default.exp
ld/testsuite/ld-auto-import/auto-import.exp
ld/testsuite/ld-cygwin/exe-export.exp
ld/testsuite/ld-elf/audit.exp
ld/testsuite/ld-elf/compress.exp
ld/testsuite/ld-elf/dwarf.exp
ld/testsuite/ld-elf/elf.exp
ld/testsuite/ld-elf/indirect.exp
ld/testsuite/ld-elf/linux-x86.exp
ld/testsuite/ld-elf/shared.exp
ld/testsuite/ld-elf/tls.exp
ld/testsuite/ld-elf/wrap.exp
ld/testsuite/ld-elfcomm/elfcomm.exp
ld/testsuite/ld-elfvers/vers.exp
ld/testsuite/ld-elfvsb/elfvsb.exp
ld/testsuite/ld-elfweak/elfweak.exp
ld/testsuite/ld-gc/gc.exp
ld/testsuite/ld-i386/i386.exp
ld/testsuite/ld-i386/no-plt.exp
ld/testsuite/ld-i386/tls.exp
ld/testsuite/ld-ifunc/ifunc.exp
ld/testsuite/ld-mn10300/mn10300.exp
ld/testsuite/ld-pe/pe-compile.exp
ld/testsuite/ld-pe/pe-run.exp
ld/testsuite/ld-pe/pe-run2.exp
ld/testsuite/ld-pie/pie.exp
ld/testsuite/ld-plugin/lto.exp
ld/testsuite/ld-plugin/plugin.exp
ld/testsuite/ld-scripts/crossref.exp
ld/testsuite/ld-sh/sh.exp
ld/testsuite/ld-shared/shared.exp
ld/testsuite/ld-size/size.exp
ld/testsuite/ld-srec/srec.exp
ld/testsuite/ld-undefined/undefined.exp
ld/testsuite/ld-unique/unique.exp
ld/testsuite/ld-x86-64/mpx.exp
ld/testsuite/ld-x86-64/no-plt.exp
ld/testsuite/ld-x86-64/tls.exp
ld/testsuite/ld-x86-64/x86-64.exp
ld/testsuite/lib/ld-lib.exp