1 files changed, 121 insertions, 0 deletions
diff --git a/libopencm3/lib/cm3/vector.c b/libopencm3/lib/cm3/vector.c
new file mode 100644
index 0000000..4523d31
--- /dev/null
+++ b/libopencm3/lib/cm3/vector.c
@@ -0,0 +1,121 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>,
+ * Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/cm3/vector.h>
+
+/* load optional platform dependent initialization routines */
+#include "../dispatch/vector_chipset.c"
+/* load the weak symbols for IRQ_HANDLERS */
+#include "../dispatch/vector_nvic.c"
+
+/* Symbols exported by the linker script(s): */
+extern unsigned _data_loadaddr, _data, _edata, _ebss, _stack;
+typedef void (*funcp_t) (void);
+extern funcp_t __preinit_array_start, __preinit_array_end;
+extern funcp_t __init_array_start, __init_array_end;
+extern funcp_t __fini_array_start, __fini_array_end;
+
+void main(void);
+void blocking_handler(void);
+void null_handler(void);
+
+__attribute__ ((section(".vectors")))
+vector_table_t vector_table = {
+	.initial_sp_value = &_stack,
+	.reset = reset_handler,
+	.nmi = nmi_handler,
+	.hard_fault = hard_fault_handler,
+
+/* Those are defined only on CM3 or CM4 */
+#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
+	.memory_manage_fault = mem_manage_handler,
+	.bus_fault = bus_fault_handler,
+	.usage_fault = usage_fault_handler,
+	.debug_monitor = debug_monitor_handler,
+#endif
+
+	.sv_call = sv_call_handler,
+	.pend_sv = pend_sv_handler,
+	.systick = sys_tick_handler,
+	.irq = {
+		IRQ_HANDLERS
+	}
+};
+
+void WEAK __attribute__ ((naked)) reset_handler(void)
+{
+	volatile unsigned *src, *dest;
+	funcp_t *fp;
+
+	for (src = &_data_loadaddr, dest = &_data;
+		dest < &_edata;
+		src++, dest++) {
+		*dest = *src;
+	}
+
+	while (dest < &_ebss) {
+		*dest++ = 0;
+	}
+
+	/* Constructors. */
+	for (fp = &__preinit_array_start; fp < &__preinit_array_end; fp++) {
+		(*fp)();
+	}
+	for (fp = &__init_array_start; fp < &__init_array_end; fp++) {
+		(*fp)();
+	}
+
+	/* might be provided by platform specific vector.c */
+	pre_main();
+
+	/* Call the application's entry point. */
+	main();
+
+	/* Destructors. */
+	for (fp = &__fini_array_start; fp < &__fini_array_end; fp++) {
+		(*fp)();
+	}
+
+}
+
+void blocking_handler(void)
+{
+	while (1);
+}
+
+void null_handler(void)
+{
+	/* Do nothing. */
+}
+
+#pragma weak nmi_handler = null_handler
+#pragma weak hard_fault_handler = blocking_handler
+#pragma weak sv_call_handler = null_handler
+#pragma weak pend_sv_handler = null_handler
+#pragma weak sys_tick_handler = null_handler
+
+/* Those are defined only on CM3 or CM4 */
+#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
+#pragma weak mem_manage_handler = blocking_handler
+#pragma weak bus_fault_handler = blocking_handler
+#pragma weak usage_fault_handler = blocking_handler
+#pragma weak debug_monitor_handler = null_handler
+#endif
+