commit e220ebbadaf6527a2455fe9d3671828f01910793
author kcc <kcc> Sat Oct 14 00:07:11 2017 +0000
committer kcc <kcc> Sat Oct 14 00:07:11 2017 +0000
tree d40eed26d5d99905ffe76e4891f165c59d81e1d2
parent daca2045a434825aafd6e6595c54f95c765e7593

[libFuzzer] print a better warning if we hit the ld bug

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@315778 91177308-0d34-0410-b5e6-96231b3b80d8

FuzzerTracePC.cpp

diff --git a/FuzzerTracePC.cpp b/FuzzerTracePC.cpp
index 78f0d41..5e9f9f2 100644
--- a/FuzzerTracePC.cpp
+++ b/FuzzerTracePC.cpp
@@ -124,9 +124,11 @@
 
     if ((NumGuards && NumGuards != NumPCsInPCTables) ||
         (NumInline8bitCounters && NumInline8bitCounters != NumPCsInPCTables)) {
-      Printf("ERROR: The size of coverage PC tables does not match the"
-             " number of instrumented PCs. This might be a bug in the compiler,"
-             " please contact the libFuzzer developers.\n");
+      Printf("ERROR: The size of coverage PC tables does not match the\n"
+             "number of instrumented PCs. This might be a compiler bug,\n"
+             "please contact the libFuzzer developers.\n"
+             "Also check https://bugs.llvm.org/show_bug.cgi?id=34636\n"
+             "for possible workarounds (tl;dr: don't use the old GNU ld)\n");
       _Exit(1);
     }
   }