From: Philippe Waroquiers <philippe.waroquiers@skynet.be>
Date: Sun, 8 Nov 2015 10:42:06 +0000 (+0000)
Subject: If --history-level=full was not provided at startup, report an error in
X-Git-Tag: svn/VALGRIND_3_12_0~300
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6aa9e95b75b3090d5d5c874a738fb9f247f5f63c;p=thirdparty%2Fvalgrind.git

If --history-level=full was not provided at startup, report an error in
helgrind accesshistory monitor command

As accesshistory will never show anything unless this option is given.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15723
---

diff --git a/helgrind/hg_main.c b/helgrind/hg_main.c
index bafa78f7ad..ae6eec0abb 100644
--- a/helgrind/hg_main.c
+++ b/helgrind/hg_main.c
@@ -4988,6 +4988,12 @@ static Bool handle_gdb_monitor_command (ThreadId tid, HChar *req)
       {
          Addr address;
          SizeT szB = 1;
+         if (HG_(clo_history_level) < 2) {
+            VG_(gdb_printf)
+               ("helgrind must be started with --history-level=full"
+                " to use accesshistory\n");
+            return True;
+         }
          if (VG_(strtok_get_address_and_size) (&address, &szB, &ssaveptr)) {
             if (szB >= 1) 
                libhb_event_map_access_history (address, szB, HG_(print_access));