Separate static allocator from payload function interpositions

1 files changed, 43 insertions, 0 deletions

diff --git a/src/bootstrap.cc b/src/bootstrap.cc
new file mode 100644
index 0000000..309ff20
--- /dev/null
+++ b/src/bootstrap.cc
@@ -0,0 +1,43 @@
+#include "actual.h"
+
+#include "init/alloc.h"
+
+void free(void* ptr) {
+	static actual::ptr<void, void*> actual_free{};
+
+	if ( !actual_free ) {
+		actual_free = actual::get_ptr<decltype(actual_free)>("free");
+	}
+
+	if ( !init::from_static_buffer(ptr) ) {
+		actual_free(ptr);
+	}
+}
+
+void* malloc(size_t size) {
+	static actual::ptr<void*, size_t> actual_malloc{};
+
+	if ( init::dlsymContext::is_active() ) {
+		return init::static_malloc(size);
+	} else {
+		if ( !actual_malloc ) {
+			actual_malloc = actual::get_ptr<decltype(actual_malloc)>("malloc");
+		}
+
+		return actual_malloc(size);
+	}
+}
+
+void* calloc(size_t block, size_t size) {
+	static actual::ptr<void*, size_t, size_t> actual_calloc{};
+
+	if ( init::dlsymContext::is_active() ) {
+		return init::static_calloc(block, size);
+	} else {
+		if ( !actual_calloc ) {
+			actual_calloc = actual::get_ptr<decltype(actual_calloc)>("calloc");
+		}
+
+		return actual_calloc(block, size);
+	}
+}