gdb: Add test for some error cases of @entry usage

Adds a test that using @entry for a non-parameter, or for an unknown
symbol, both give the expected error.  This error message was
previously untested.

gdb/testsuite/ChangeLog:

	* gdb.arch/amd64-entry-value.exp: Test using @entry on a
	non-parameter, and on an unknown symbol.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 2b96801..db860b0 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-21  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+       * gdb.arch/amd64-entry-value.exp: Test using @entry on a
+       non-parameter, and on an unknown symbol.
+
 2018-01-19  Tom Tromey  <tom@tromey.com>
 
        * gdb.rust/modules.rs (TWENTY_THREE): New global.

diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value.exp b/gdb/testsuite/gdb.arch/amd64-entry-value.exp
index 46a896f..72700d5 100644 (file)
--- a/gdb/testsuite/gdb.arch/amd64-entry-value.exp
+++ b/gdb/testsuite/gdb.arch/amd64-entry-value.exp
@@ -87,6 +87,14 @@ gdb_test "p d9@entry" " = 11\\.5" "entry_stack: p d9@entry"
 gdb_test "p da" " = 4\\.5" "entry_stack: p da"
 gdb_test "p da@entry" " = 12\\.5" "entry_stack: p da@entry"
 
+# Test @entry values for a static file scoped variable, and for an
+# unknown symbol.  Both of these should give an error.
+gdb_test "p v@entry" \
+    "@entry can be used only for function parameters, not for \"v\"" \
+    "attempt to print global v@entry"
+gdb_test "p unknown@entry" \
+    "@entry can be used only for function parameters, not for \"unknown\"" \
+    "attempt to print unknown@entry"
 
 # Test various kinds of `set print entry-values'.