Use generated linker config
Linker config now generates ld.config.txt under /dev/linkerconfig from
init. To use this, this change updates linker to pick up
/dev/linkerconfig/ld.config.txt if system property
(sys.linker.use_generated_config) is true.
Bug: 138920271
Test: m -j && tested from cuttlefish
Change-Id: I0f527741ace2d512b45fd72c301aa4cfcfe17a71
diff --git a/linker/linker.cpp b/linker/linker.cpp
index df7dd40..6645ea4 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -90,6 +90,8 @@
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";
+
#if defined(__LP64__)
static const char* const kSystemLibDir = "/system/lib64";
static const char* const kOdmLibDir = "/odm/lib64";
@@ -4142,6 +4144,13 @@
}
#endif
+ // Use generated linker config if flag is set
+ // TODO(b/138920271) Do not check property once it is confirmed as stable
+ if (android::base::GetBoolProperty("sys.linker.use_generated_config", false) &&
+ file_exists(kLdGeneratedConfigFilePath)) {
+ return kLdGeneratedConfigFilePath;
+ }
+
std::string path = get_ld_config_file_apex_path(executable_path);
if (!path.empty()) {
if (file_exists(path.c_str())) {