Fix double V8 initialization with fuzzers.

Commit 95860d7 added some new fuzzers, but they try to use both the
generic fuzzer's initialization code, as well as their own custom
initialization code.

Add a new "pdfium_public_fuzzer" GN template for these new fuzzers, so
they use their own initialization code rather than the generic one.

BUG=chromium:894053
TBR=tsepez@chromium.org

Change-Id: I6110a199e1c64d7c0632f9966e146fd316b757ae
Reviewed-on: https://pdfium-review.googlesource.com/c/43832
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 32 insertions, 23 deletions

diff --git a/testing/fuzzers/BUILD.gn b/testing/fuzzers/BUILD.gn
index 5a6af69f69..f528ad5c9d 100644
--- a/testing/fuzzers/BUILD.gn
+++ b/testing/fuzzers/BUILD.gn
@@ -65,11 +65,40 @@ group("fuzzers") {
   }
 }
 
+template("pdfium_public_fuzzer") {
+  source_set(target_name) {
+    sources = invoker.sources + [
+                "pdfium_fuzzer_helper.cc",
+                "pdfium_fuzzer_helper.h",
+              ]
+    deps = [
+      "../../:pdfium",
+      "../../:test_support",
+    ]
+    if (defined(invoker.deps)) {
+      deps += invoker.deps
+    }
+    testonly = true
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":fuzzer_config",
+    ]
+    if (pdf_enable_v8) {
+      configs += [ "//v8:external_startup_data" ]
+      deps += [
+        "//v8",
+        "//v8:v8_libplatform",
+      ]
+    }
+  }
+}
+
 template("pdfium_fuzzer") {
   source_set(target_name) {
     sources = invoker.sources + [ "pdf_fuzzer_init.cc" ]
     deps = [
-      "../..:pdfium",
+      "../../:pdfium",
     ]
     if (defined(invoker.deps)) {
       deps += invoker.deps
@@ -181,17 +210,10 @@ if (pdf_enable_xfa) {
     ]
   }
 
-  pdfium_fuzzer("pdfium_xfa_fuzzer_src") {
+  pdfium_public_fuzzer("pdfium_xfa_fuzzer_src") {
     sources = [
-      "pdfium_fuzzer_helper.cc",
-      "pdfium_fuzzer_helper.h",
       "pdfium_xfa_fuzzer.cc",
     ]
-    deps = [
-      "../../:test_support",
-      "//v8",
-      "//v8:v8_libplatform",
-    ]
   }
 }
 
@@ -270,21 +292,8 @@ pdfium_fuzzer("pdf_xml_fuzzer_src") {
   ]
 }
 
-pdfium_fuzzer("pdfium_fuzzer_src") {
+pdfium_public_fuzzer("pdfium_fuzzer_src") {
   sources = [
     "pdfium_fuzzer.cc",
-    "pdfium_fuzzer_helper.cc",
-    "pdfium_fuzzer_helper.h",
   ]
-
-  deps = [
-    "../../:test_support",
-  ]
-
-  if (pdf_enable_v8) {
-    deps += [
-      "//v8",
-      "//v8:v8_libplatform",
-    ]
-  }
 }