gdb: make set/show cwd work with $_gdb_setting_str

The previous commit fixed set/show args when used with
$_gdb_setting_str, this commit fixes set/show cwd.

Instead of using a scratch variable which is then pushed into the
current inferior from a set callback, move to the API that allows for
getters and setters, and store the value directly within the current
inferior.

Update the existing test to check the cwd setting.

1 files changed, 9 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.multi/gdb-settings.exp b/gdb/testsuite/gdb.multi/gdb-settings.exp
index 407bc55..f8e9aaf 100644
--- a/gdb/testsuite/gdb.multi/gdb-settings.exp
+++ b/gdb/testsuite/gdb.multi/gdb-settings.exp
@@ -69,6 +69,7 @@ foreach_with_prefix inf $inferiors {
     gdb_test "inferior ${inf}" "Switching to inferior ${inf}.*" \
 	"switch to inferior ${inf} before set"
     gdb_test_no_output "set args inf${inf}-args"
+    gdb_test_no_output "set cwd /inf${inf}-cwd"
 }
 
 # Check settings are still correct for each inferior.
@@ -80,21 +81,29 @@ foreach_with_prefix inf $inferiors {
     gdb_test "with args tmp-value -- print 1" " = 1"
     gdb_test "show args" "inf${inf}-args.*"
 
+    gdb_test "with cwd tmp-value -- print 1" " = 1"
+    gdb_test "show cwd" "/inf${inf}-cwd.*"
+
     # If the inferiors are running check $_gdb_setting_str and
     # $_gdb_setting return the correct values.
     if { $run } {
 	gdb_test {print $_gdb_setting_str("args")} "\"inf${inf}-args\""
 	gdb_test {print $_gdb_setting("args")} "\"inf${inf}-args\""
+	gdb_test {print $_gdb_setting_str("cwd")} "\"/inf${inf}-cwd\""
+	gdb_test {print $_gdb_setting("cwd")} "\"/inf${inf}-cwd\""
     }
 
     # Check the settings can be read from Python.
     if { $run_python_tests } {
 	gdb_test "python print(gdb.parameter('args'))" "inf${inf}-args"
+	gdb_test "python print(gdb.parameter('cwd'))" "/inf${inf}-cwd"
     }
 
     # Check the settings can be read from Guile.
     if { $run_guile_tests } {
 	gdb_test "guile (print (parameter-value \"args\"))" \
 	    "inf${inf}-args"
+	gdb_test "guile (print (parameter-value \"cwd\"))" \
+	    "/inf${inf}-cwd"
     }
 }