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[RFC-v2] Use untested for macscp.exp if no macro information generated


Thanks for your feedback Daniel,


Here is a new lighter version.
I finally switch from untested to unsupported,
which seems closer to reality as it is an
unsupported feature (of the compiler).

 Again, the test with  "info source" only works once a source file is
loaded,
which is the reason why this test is not put at the very
start of macscp.exp.

With that patch,
doing
$ make check RUNTESTFLAGS="gdb.base/macscp.exp"
gives this:
$ cat gdb.sum
Test Run By Pierre on Tue Feb  3 15:24:03 2009
Native configuration is i686-pc-cygwin

                === gdb tests ===

Schedule of variations:
    unix

Running target unix
Running ../../../src/gdb/testsuite/gdb.base/macscp.exp ...
PASS: gdb.base/macscp.exp: list main
FAIL: gdb.base/macscp.exp: info macro WHERE after `list main' (undefined)
UNSUPPORTED: gdb.base/macscp.exp: Skipping test because debug information
does n
ot include macro information.

                === gdb Summary ===

# of expected passes            1
# of unexpected failures        1
# of unsupported tests          1
/usr/local/src/gdbcvs/build/gdb/testsuite/../../gdb/gdb version
6.8.50.20090203
-cvs -nw -nx
  



Pierre Muller
Pascal language support maintainer for GDB



gdb/testsuite/ChangeLog entry:

2009-02-03  Pierre Muller  <muller@ics.u-strasbg.fr>

	* gdb.base/macscp.exp (info_macro): Return undefined if undefined.
	(check_macro): Return 1 if undefined.
	If first test fails, check if macro debug information is available,
	and report unsupported test if no macro information is found.


Index: gdb/testsuite/gdb.base/macscp.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/macscp.exp,v
retrieving revision 1.19
diff -u -p -r1.19 macscp.exp
--- gdb/testsuite/gdb.base/macscp.exp	3 Jan 2009 05:58:03 -0000	1.19
+++ gdb/testsuite/gdb.base/macscp.exp	3 Feb 2009 14:24:55 -0000
@@ -152,7 +152,7 @@ proc info_macro {macro} {
     switch -exact -- $definition {
         no-macro-info { return no-macro-info }
         timeout { return timeout }
-        undefined -
+        undefined { return undefined }
         default {
             if {[llength $location] >= 1} {
                 return [concat $location [list $definition]]
@@ -178,6 +178,10 @@ proc check_macro {macro expected where} 
                 xfail "executable includes no macro debugging information"
                 return 1
             }
+	    undefined {
+		fail "info macro $macro $where (undefined)"
+		return 1
+	    }
             timeout {
                 fail "info macro $macro $where (timeout)"
             }
@@ -199,8 +203,28 @@ proc list_and_check_macro {func macro ex
 
 
 if {[list_and_check_macro main WHERE {macscp1.c {before macscp1_3}}]} {
-    return 0
+    global verbose
+    set macro_support "unknown"
+    send_gdb "info source\n"
+    gdb_test_multiple "info source" "Test macro information"  {
+	-re "Includes preprocessor macro info\..*$gdb_prompt $" {
+	    set macro_support 1
+	    verbose "Source has macro information"
+	}
+	-re "Does not include preprocessor macro info\..*$gdb_prompt $" {
+	    set macro_support 0
+	    verbose "Source has no macro information"
+	}
+	default {
+	    warning "couldn't check macro support (no valid response)."
+	}
+    }
+    if {$macro_support == 0} {
+	unsupported "Skipping test because debug information does not
include macro information."
+	return 0
+    }
 }
+ 
 list_and_check_macro macscp2_2 WHERE {macscp2.h macscp1.c {before
macscp2_2}}
 list_and_check_macro macscp3_2 WHERE {macscp3.h macscp1.c {before
macscp3_2}}
 


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