commit a9644fec4607898d6b1684d250d38d890f286f44
author Adrian Prantl <aprantl@apple.com> Fri Sep 06 22:33:52 2013 +0000
committer Copybara-Service <copybara-worker@google.com> Sun Aug 30 13:46:14 2020 -0700
tree eea1a88072b70718723a1da651f5aaa9e7747d46
parent 5892a1c47376d615f1cdc60137c6ab88bceb9c30

Use a more backwards-compatible method for evaluating expressions and add
more explanatory error messages.

llvm-svn: 190215
GitOrigin-RevId: 5ef1c861ddef5568c8c5596325048655a808c383

llgdb.py

diff --git a/llgdb.py b/llgdb.py
index bfa5fb1..40f7e36 100644
--- a/llgdb.py
+++ b/llgdb.py
@@ -79,7 +79,7 @@
     if not cmd:
         continue
 
-    print '> %s'% command
+    print '> %s'% command[:-1]
 
     try:
         if re.match('^r|(run)$', cmd[0]):
@@ -87,11 +87,17 @@
             launchinfo = lldb.SBLaunchInfo([])
             launchinfo.SetWorkingDirectory(os.getcwd())
             process = target.Launch(launchinfo, error)
+            print error
             if not process or error.fail:
-                print error
                 state = process.GetState()
                 print "State = %d" % state
-                print "Could not launch process."
+                print """
+ERROR: Could not launch process.
+NOTE: There are several resons why this may happen:
+  * Root needs to run "DevToolsSecurity --enable".
+  * We launched ("run") more than one process simultaneously.
+    (cf. rdar://problem/14929651)
+"""
                 sys.exit(1)
 
         elif re.match('^b|(break)$', cmd[0]) and len(cmd) == 2:
@@ -101,7 +107,7 @@
                 print target.BreakpointCreateByLocation(mainfile, int(cmd[1]))
             else:
                 # b file:line
-                file, line = cmd.split(':')
+                file, line = cmd[1].split(':')
                 print target.BreakpointCreateByLocation(file, int(line))
 
         elif re.match('^ptype$', cmd[0]) and len(cmd) == 2:
@@ -122,8 +128,9 @@
             print target.EvaluateExpression(' '.join(cmd[1:]), opts)
 
         elif re.match('^p|(print)$', cmd[0]) and len(cmd) > 1:
-            opts = lldb.SBExpressionOptions()
-            print target.EvaluateExpression(' '.join(cmd[1:]), opts)
+            thread = process.GetThreadAtIndex(0)
+            frame = thread.GetFrameAtIndex(0)
+            print frame.EvaluateExpression(' '.join(cmd[1:]))
 
         elif re.match('^q|(quit)$', cmd[0]):
             sys.exit(0)

static-member.cpp

diff --git a/static-member.cpp b/static-member.cpp
index 7512331..66191e7 100644
--- a/static-member.cpp
+++ b/static-member.cpp
@@ -7,7 +7,7 @@
 // DEBUGGER: break static-member.cpp:33
 // DEBUGGER: r
 // DEBUGGER: ptype C
-// CHECK:      type = {{struct|class}} C {
+// CHECK:      {{struct|class}} C {
 // CHECK:      static const int a;
 // CHECK-NEXT: static int b;
 // CHECK-NEXT: static int c;