Call constructors and destructors.

1 files changed, 16 insertions, 0 deletions

diff --git a/entry.cpp b/entry.cpp
index 4faca0e..e819c78 100644
--- a/entry.cpp
+++ b/entry.cpp
@@ -3,12 +3,18 @@
 
 int main();
 
+typedef void (*funcp_t)();
+
 // Symbols from linker script.
 extern uint32_t _data_rom;
 extern uint32_t _data_start;
 extern uint32_t _data_end;
 extern uint32_t _bss_start;
 extern uint32_t _bss_end;
+extern funcp_t _init_array_start;
+extern funcp_t _init_array_end;
+extern funcp_t _fini_array_start;
+extern funcp_t _fini_array_end;
 
 void __attribute__((naked)) entry() {
 	// Initialize clock.
@@ -30,11 +36,21 @@ void __attribute__((naked)) entry() {
 	}
 	
 	// Call constructors.
+	funcp_t* fp = &_init_array_start;
+	
+	while(fp < &_init_array_end) {
+		(*fp++)();
+	}
 	
 	// Call main().
 	main();
 	
 	// Call destructors.
+	fp = &_fini_array_start;
+	
+	while(fp < &_fini_array_end) {
+		(*fp++)();
+	}
 	
 	// Halt.
 	while(1);