Fix Rust testing

This changes the gdb test suite to omit -fno-stack-protector when
compiling Rust code.  This makes Rust testing work again.

I think I saw this patch somewhere already, but I couldn't find it
again just now, so I'm checking this version in.

gdb/testsuite/ChangeLog
2019-04-24  Tom Tromey  <tromey@adacore.com>

	* lib/gdb.exp (gdb_compile): Don't add -fno-stack-protector for
	Rust.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 23ff7bc..580c15e 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2019-04-24  Tom Tromey  <tromey@adacore.com>
 
+       * lib/gdb.exp (gdb_compile): Don't add -fno-stack-protector for
+       Rust.
+
+2019-04-24  Tom Tromey  <tromey@adacore.com>
+
        * gdb.arch/amd64-eval.exp: Test bitfield return.
        * gdb.arch/amd64-eval.cc (struct Bitfields): New.
        (class Foo) <return_bitfields>: New method.

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 1176fdd..eaf7fc4 100644 (file)
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3564,7 +3564,8 @@ proc gdb_compile {source dest type options} {
     if { $getting_compiler_info == 0
         && [test_compiler_info {gcc-*-*}]
         && !([test_compiler_info {gcc-[0-3]-*}]
-             || [test_compiler_info {gcc-4-0-*}]) } {
+             || [test_compiler_info {gcc-4-0-*}])
+        && [lsearch -exact $options rust] == -1} {
         # Put it at the front to not override any user-provided value.
         lappend new_options "early_flags=-fno-stack-protector"
     }