Add some slack at the end of large allocations when target SDK level < S.
This works around buggy applications that read a few bytes past the
end of their allocation, which would otherwise cause a segfault with
the concurrent Scudo change that aligns large allocations to the right.
Because the implementation of
android_set_application_target_sdk_version() lives in the linker,
we need to introduce a hook so that libc is notified when the target
SDK version changes.
Bug: 181344545
Change-Id: Id4be6645b94fad3f64ae48afd16c0154f1de448f
diff --git a/libc/bionic/libc_init_static.cpp b/libc/bionic/libc_init_static.cpp
index 2e4ee11..069ebb0 100644
--- a/libc/bionic/libc_init_static.cpp
+++ b/libc/bionic/libc_init_static.cpp
@@ -400,6 +400,7 @@
extern "C" void android_set_application_target_sdk_version(int target) {
g_target_sdk_version = target;
+ __libc_set_target_sdk_version(target);
}
// This function is called in the dynamic linker before ifunc resolvers have run, so this file is