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-rw-r--r--lib/cm3/vector.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/cm3/vector.c b/lib/cm3/vector.c
index 2706b6d..43e8917 100644
--- a/lib/cm3/vector.c
+++ b/lib/cm3/vector.c
@@ -29,6 +29,10 @@
/* 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);
@@ -55,6 +59,7 @@ vector_table_t vector_table = {
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;
@@ -62,11 +67,21 @@ void WEAK __attribute__ ((naked)) reset_handler(void)
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)