Ada compile with -fvar-tracking

[Carl Love <cel@linux.ibm.com>]

Tom:

Per our conversation on HexChat about using -fvar-tracking when
compiling Ada programs.

I tried adding the -fvar-tracking option based on the examples we
talked about.  Here are the changes I used:


gdb/testsuite/gdb.ada/finish-large.exp | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.ada/finish-large.exp b/gdb/testsuite/gdb.ada/finish-large.exp
index 5661d132a18..affb2a497fa 100644
--- a/gdb/testsuite/gdb.ada/finish-large.exp
+++ b/gdb/testsuite/gdb.ada/finish-large.exp
@@ -19,7 +19,12 @@ require allow_ada_tests
 
 standard_ada_testfile p
 
-if {[gdb_compile_ada "${srcfile}" "${binfile}" executable debug] != ""} {
+set additional_flags {}
+
+set flags [list debug additional_flags=-fvar-tracking]
+
+if {[gdb_compile_ada "${srcfile}" "${binfile} " executable $flags] != ""} {
+
   return -1
 }

When I try to run the test with:

   make check RUNTESTFLAGS='GDB=/home/carll/bin/gdb gdb.ada/finish-large.exp ' > out

I get the following, edited a little to make it easier to read, in 
gdb/testsuite/gdb.log:

   Executing on host: gnatmake  p.adb  -largs  -margs  -fvar-tracking -f 
   -I/home/.../gdb/testsuite/gdb.ada/finish-large -g -largs  -lm  -margs -o /.../gdb/testsuite

   compilation failed: gcc -c -I./ -fvar-tracking -I/.../gdb/testsuite/gdb.ada/finish-large -g 
   -I- /.../testsuite/gdb.ada/finish-large/p.adb

   gcc -c -I./ -fvar-tracking -I/..../gdb/testsuite/gdb.ada/finish-large -g -I- 
   /.../gdb/testsuite/gdb.ada/finish-large/pck.adb

   gnatbind -I/..../gdb/testsuite/gdb.ada/finish-large -x p.ali

   gnatlink p.ali -fvar-tracking -g -lm -o /..../gdb/testsuite/outputs/gdb.ada/finish-large/p

   FAIL: gdb.ada/finish-large.exp: compilation p.adb

If I remove the "additional_flags=-fvar-tracking" from the flags line,
i.e.

     set flags [list debug additional_flags=""]

Then the test compiles and runs as before.  So, I still don't seem to
be able to get Ada to take the -fvar-tracking option.  I just seem to
get a compilation error which I guess is due to the compiler not
recognizing "-fvar-tracking".  Thoughts?

Thanks for the time and effort on this.

                          Carl