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[PATCH] 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.
---
 gdb/testsuite/ChangeLog                      | 5 +++++
 gdb/testsuite/gdb.arch/amd64-entry-value.exp | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/gdb/testsuite/gdb.arch/amd64-entry-value.exp b/gdb/testsuite/gdb.arch/amd64-entry-value.exp
index 46a896fdec0..72700d55c23 100644
--- 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'.
 
-- 
2.14.3


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