[PATCH 1/3] MI: mi_runto -pending

[Lancelot SIX <lancelot.six@amd.com>]

From: Pedro Alves <pedro@palves.net>

With the CLI testsuite's runto proc, we can pass "allow-pending" as an
option, like:

  runto func allow-pending

That is currently not possible with MI's mi_runto, however.  This
patch makes it possible, by adding a new "-pending" option to
mi_runto.

A pending breakpoint shows different MI attributes compared to a
breakpoint with a location, so the regexp returned by
mi_make_breakpoint isn't suitable.  Thus, add a new
mi_make_breakpoint_pending proc for pending breakpoints.

Tweak mi_runto to let it take and pass down arguments.

Change-Id: I185fef00ab545a1df2ce12b4dbc3da908783a37c
---
 gdb/testsuite/lib/mi-support.exp | 66 +++++++++++++++++++++++++++++---
 1 file changed, 60 insertions(+), 6 deletions(-)

diff --git a/gdb/testsuite/lib/mi-support.exp b/gdb/testsuite/lib/mi-support.exp
index e578a7e6f9b..e724b2eeb51 100644
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -1114,6 +1114,8 @@ proc mi_clean_restart { args } {
 # Supported options:
 #
 #  -qualified -- pass --qualified to -break-insert
+#  -pending   -- pass -f to -break-insert to create a pending
+#                breakpoint.
 
 proc mi_runto_helper {func run_or_continue args} {
   global mi_gdb_prompt expect_out
@@ -1122,13 +1124,24 @@ proc mi_runto_helper {func run_or_continue args} {
   parse_args {{qualified}}
 
   set test "mi runto $func"
-  set bp [mi_make_breakpoint -type breakpoint -disp del \
-	      -func $func\(\\\(.*\\\)\)?]
+  if {$pending} {
+      set bp [mi_make_breakpoint_pending -type breakpoint -disp del]
+  } else {
+      set bp [mi_make_breakpoint -type breakpoint -disp del \
+		  -func $func\(\\\(.*\\\)\)?]
+  }
   set extra_opts ""
+  set extra_output ""
   if {$qualified} {
-      append extra_opts "--qualified"
+      lappend extra_opts "--qualified"
   }
-  mi_gdb_test "200-break-insert $extra_opts -t $func" "200\\^done,$bp" \
+  if {$pending} {
+      lappend extra_opts "-f"
+      # MI prints "Function FUNC not defined", "No line NNN in current
+      # file.", etc. to the CLI stream.
+      set extra_output "&\"\[^\r\n\]+\"\r\n"
+  }
+  mi_gdb_test "200-break-insert [join $extra_opts " "] -t $func" "${extra_output}200\\^done,$bp" \
       "breakpoint at $func"
 
   if {$run_or_continue == "run"} {
@@ -1142,8 +1155,8 @@ proc mi_runto_helper {func run_or_continue args} {
   mi_expect_stop "breakpoint-hit" $func ".*" ".*" "\[0-9\]+" { "" "disp=\"del\"" } $test
 }
 
-proc mi_runto {func} {
-    return [mi_runto_helper $func "run"]
+proc mi_runto {func args} {
+    return [mi_runto_helper $func "run" {*}$args]
 }
 
 # Just like runto_main but works with the MI interface.
@@ -2683,6 +2696,47 @@ proc mi_make_breakpoint_multi {args} {
     return $result
 }
 
+# Construct a breakpoint regexp, for a pending breakpoint.  This may
+# be used to test the output of -break-insert, -dprintf-insert, or
+# -break-info for pending breakpoints.
+#
+# Arguments for the breakpoint may be specified using the options
+# number, type, disp, enabled, pending.
+#
+# Example: mi_make_breakpoint_pending -number 2 -pending func
+# will return the breakpoint:
+# bkpt={number="2",type=".*",disp=".*",enabled=".*",addr="<PENDING>",
+#       pending="func", times="0".*original-location=".*"}
+
+proc mi_make_breakpoint_pending {args} {
+    parse_args {{number .*} {type .*} {disp .*} {enabled .*}
+	{pending .*} {original-location .*}}
+
+    set attr_list {}
+    foreach attr [list number type disp enabled] {
+	lappend attr_list $attr [set $attr]
+    }
+
+    lappend attr_list "addr" "<PENDING>"
+
+    foreach attr [list pending] {
+	lappend attr_list $attr [set $attr]
+    }
+
+    set ignore 0
+    set times 0
+    set script ""
+    set cond ""
+    set evaluated-by ""
+
+    set result [mi_make_breakpoint_1 \
+		    $attr_list $cond ${evaluated-by} $times \
+		    $ignore $script ${original-location}]
+
+    append result "\\\}"
+    return $result
+}
+
 # Construct a breakpoint regexp.  This may be used to test the output of
 # -break-insert, -dprintf-insert, or -break-info.
 #
-- 
2.25.1