Merge pull request #797 from cppalliance/revert_fuzz

Author: mborland

fuzzing/Jamfile

@@ -1,50 +1,27 @@
+#
+# Copyright (c) 2019-2023 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
 # Copyright (c) 2024 Matt Borland
-# Copyright (c) 2025 Alexander Grund
 #
-# Distributed under the Boost Software License, Version 1.0.
-# https://www.boost.org/LICENSE_1_0.txt.
-
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
 
 import common ;
-import path ;
-import python ;
 import regex ;
-import toolset ;
-
-path-constant HERE : . ;
 
 local all_fuzzers = [ regex.replace-list
     [ glob "fuzz_*.cpp" ] : ".cpp" : ""
 ] ;
 
-if ! [ python.configured ]
-{
-    using python ;
-}
-
-.make-corpus-script = $(HERE)/make-corpus.py ;
-
-rule make-corpus ( target : sources + : properties * )
-{
-    RUNNER on $(target) = [ path.native $(.make-corpus-script) ] ;
-}
-actions make-corpus
-{
-    "$(PYTHON:E=python)" "$(RUNNER)" $(<) $(>)
-}
-toolset.flags $(__name__).make-corpus PYTHON <python.interpreter> ;
-
 for local fuzzer in $(all_fuzzers)
 {
+    # These two fuzzers are the most complex ones. The rest are really
+    # simple, so less time is enough
     local fuzz_time = 30 ;
-    local corpus = /tmp/corpus/$(fuzzer) ;
-    local min_corpus = /tmp/mincorpus/$(fuzzer) ;
-    local seed_corpus = $(HERE)/seedcorpus/$(fuzzer) ;
-    local seed_files = [ glob "$(seed_corpus)/*" ] ;
 
     # Create the output corpus directories
-    make $(corpus) : $(seed_files) : make-corpus ;
-    make $(min_corpus) : : common.MkDir ;
+    make /tmp/corpus/$(fuzzer) : : common.MkDir ;
+    make /tmp/mincorpus/$(fuzzer) : : common.MkDir ;
 
     # Build the fuzzer
     exe $(fuzzer)
@@ -59,21 +36,31 @@ for local fuzzer in $(all_fuzzers)
             <linkflags>-fsanitize=fuzzer
     ;
 
+    # Make sure that any old crashes are run without problems
+    local old_crashes = [ glob-tree-ex old_crashes/$(fuzzer) : * ] ;
+    if $(old_crashes)
+    {
+        run $(fuzzer)
+            : target-name $(fuzzer)-old-crashes
+            : input-files [ SORT $(old_crashes) ]
+        ;
+    }
+
     # Run the fuzzer for a short while
     run $(fuzzer)
-        : <testing.arg>"$(corpus) -max_total_time=$(fuzz_time)"
+        : <testing.arg>"seedcorpus/$(fuzzer) -max_total_time=$(fuzz_time)"
         : target-name $(fuzzer)-fuzzing
         : requirements
-            <dependency>$(corpus)
+            <dependency>/tmp/corpus/$(fuzzer)
     ;
 
     # Minimize the corpus
     run $(fuzzer)
-        : <testing.arg>"$(min_corpus) $(corpus) -merge=1"
+        : <testing.arg>"/tmp/mincorpus/$(fuzzer) /tmp/corpus/$(fuzzer) -merge=1"
         : target-name $(fuzzer)-minimize-corpus
         : requirements
             <dependency>$(fuzzer)-fuzzing
-            <dependency>$(corpus)
-            <dependency>$(min_corpus)
+            <dependency>/tmp/corpus/$(fuzzer)
+            <dependency>/tmp/mincorpus/$(fuzzer)
     ;
 }