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-rw-r--r--gdb/testsuite/ChangeLog5
-rw-r--r--gdb/testsuite/gdb.base/dbx.exp35
-rw-r--r--gdb/testsuite/lib/gdb.exp43
3 files changed, 64 insertions, 19 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index e8306bd..e0fece6 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-06-11 Tom de Vries <tdevries@suse.de>
+
+ * lib/gdb.exp (with_override): New proc, factored out of ...
+ * gdb.base/dbx.exp: ... here. Use with_override and save_vars.
+
2020-06-10 Tom de Vries <tdevries@suse.de>
* gdb.ada/ptype_union.exp: Remove PR24713 workaround.
diff --git a/gdb/testsuite/gdb.base/dbx.exp b/gdb/testsuite/gdb.base/dbx.exp
index 4299c44..2a53f99 100644
--- a/gdb/testsuite/gdb.base/dbx.exp
+++ b/gdb/testsuite/gdb.base/dbx.exp
@@ -147,11 +147,8 @@ proc dbx_reinitialize_dir { subdir } {
# right sequence of events, allowing gdb_load to do its normal thing? This way
# remotes and simulators will work, too.
#
-# [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.
-set old_gdb_file_cmd_args [info args gdb_file_cmd]
-set old_gdb_file_cmd_body [info body gdb_file_cmd]
-proc gdb_file_cmd {arg} {
+proc local_gdb_file_cmd {arg} {
global loadpath
global loadfile
global GDB
@@ -286,24 +283,24 @@ proc test_func { } {
# Start with a fresh gdb.
gdb_exit
-global GDBFLAGS
-set saved_gdbflags $GDBFLAGS
-set GDBFLAGS "$GDBFLAGS --dbx"
-gdb_start
-dbx_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
+with_override gdb_file_cmd local_gdb_file_cmd {
+ save_vars GDBFLAGS {
+ set GDBFLAGS "$GDBFLAGS --dbx"
-test_breakpoints
-test_assign
-test_whereis
-gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
-test_func
+ gdb_start
+ dbx_reinitialize_dir $srcdir/$subdir
+ gdb_load ${binfile}
-#exit and cleanup
-gdb_exit
+ test_breakpoints
+ test_assign
+ test_whereis
+ gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
+ test_func
-set GDBFLAGS $saved_gdbflags
-eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
+ #exit and cleanup
+ gdb_exit
+ }
+}
return 0
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 9a0620a..51f8a05 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -7200,5 +7200,48 @@ proc hex_in_list { val hexlist } {
return [expr $index != -1]
}
+# Override proc NAME to proc OVERRIDE for the duration of the execution of
+# BODY.
+
+proc with_override { name override body } {
+ # Implementation note: It's possible to implement the override using
+ # rename, like this:
+ # rename $name save_$name
+ # rename $override $name
+ # set code [catch {uplevel 1 $body} result]
+ # rename $name $override
+ # rename save_$name $name
+ # but there are two issues here:
+ # - the save_$name might clash with an existing proc
+ # - the override is no longer available under its original name during
+ # the override
+ # So, we use this more elaborate but cleaner mechanism.
+
+ # Save the old proc.
+ set old_args [info args $name]
+ set old_body [info body $name]
+
+ # Install the override.
+ set new_args [info args $override]
+ set new_body [info body $override]
+ eval proc $name {$new_args} {$new_body}
+
+ # Execute body.
+ set code [catch {uplevel 1 $body} result]
+
+ # Restore old proc.
+ eval proc $name {$old_args} {$old_body}
+
+ # Return as appropriate.
+ if { $code == 1 } {
+ global errorInfo errorCode
+ return -code error -errorinfo $errorInfo -errorcode $errorCode $result
+ } elseif { $code > 1 } {
+ return -code $code $result
+ }
+
+ return $result
+}
+
# Always load compatibility stuff.
load_lib future.exp