commit c430451205f78579c4f795b4339a81692a97f4d8
author Elliott Hughes <enh@google.com> Wed Oct 30 02:10:15 2019 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Wed Oct 30 02:10:15 2019 +0000
tree a840aea69c0f9c489dcfbccd7cc8d09988684d2a
parent 6f9a97f864898bb9538898b212bf0a9547b2f943
parent d310125a687fdc13c0cd3640c8653cd3ebd5b511

Merge "Take a quick_exit() patch from upstream FreeBSD."

linker/linker.cpp

diff --git a/linker/linker.cpp b/linker/linker.cpp
index f4fccac..c1bccfe 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -93,6 +93,7 @@
 static const char* const kLdConfigArchFilePath = "/system/etc/ld.config." ABI_STRING ".txt";
 
 static const char* const kLdConfigFilePath = "/system/etc/ld.config.txt";
+static const char* const kLdConfigVndkLiteFilePath = "/system/etc/ld.config.vndk_lite.txt";
 
 static const char* const kLdGeneratedConfigFilePath = "/dev/linkerconfig/ld.config.txt";
 
@@ -4052,13 +4053,30 @@
 }
 
 static std::string get_ld_config_file_vndk_path() {
-  if (!file_exists(kLdGeneratedConfigFilePath)) {
-    DL_WARN("Warning: failed to find generated linker configuration from \"%s\"",
-            kLdGeneratedConfigFilePath);
-    return "";
+  if (android::base::GetBoolProperty("ro.vndk.lite", false)) {
+    return kLdConfigVndkLiteFilePath;
   }
 
-  return kLdGeneratedConfigFilePath;
+  // Use generated linker config if flag is set
+  // TODO(b/138920271) Do not check property once it is confirmed as stable
+  // TODO(b/139638519) This file should also cover legacy or vndk-lite config
+  if (android::base::GetProperty("ro.vndk.version", "") != "" &&
+      android::base::GetBoolProperty("sys.linker.use_generated_config", true)) {
+    if (file_exists(kLdGeneratedConfigFilePath)) {
+      return kLdGeneratedConfigFilePath;
+    } else {
+      DL_WARN("Warning: failed to find generated linker configuration from \"%s\"",
+              kLdGeneratedConfigFilePath);
+    }
+  }
+
+  std::string ld_config_file_vndk = kLdConfigFilePath;
+  size_t insert_pos = ld_config_file_vndk.find_last_of('.');
+  if (insert_pos == std::string::npos) {
+    insert_pos = ld_config_file_vndk.length();
+  }
+  ld_config_file_vndk.insert(insert_pos, Config::get_vndk_version_string('.'));
+  return ld_config_file_vndk;
 }
 
 static std::string get_ld_config_file_path(const char* executable_path) {
@@ -4086,7 +4104,7 @@
   }
 
   path = get_ld_config_file_vndk_path();
-  if (!path.empty()) {
+  if (file_exists(path.c_str())) {
     return path;
   }