main: set exception vector table addr

linker: add exceptions start & end symbol

src/libbuild_zynq/link.x

@@ -10,7 +10,9 @@ SECTIONS
     __text_start = .;
     .text :
     {
+        __exceptions_start = .;
         KEEP(*(.text.exceptions));
+        __exceptions_end = .;
         *(.text.boot);
         *(.text .text.*);
     } > SDRAM

src/runtime/src/main.rs

@@ -38,6 +38,11 @@ mod rtio_mgt;
 #[cfg(has_drtio)]
 mod subkernel;
 
+// linker symbols
+extern "C" {
+    static __exceptions_start: u32;
+}
+
 #[cfg(all(feature = "target_kasli_soc", has_drtio))]
 async fn io_expanders_service(
     i2c_bus: RefCell<&mut libboard_zynq::i2c::I2c>,
@@ -77,7 +82,9 @@ static mut LOG_BUFFER: [u8; 1 << 17] = [0; 1 << 17];
 
 #[no_mangle]
 pub fn main_core0() {
-    exception_vectors::set_vector_table(0x100000);
+    unsafe {
+        exception_vectors::set_vector_table(&__exceptions_start as *const u32 as u32);
+    }
     enable_l2_cache(0x8);
     let mut timer = GlobalTimer::start();
 

src/satman/src/main.rs

@@ -48,6 +48,11 @@ mod repeater;
 mod routing;
 mod subkernel;
 
+// linker symbols
+extern "C" {
+    static __exceptions_start: u32;
+}
+
 fn drtiosat_reset(reset: bool) {
     unsafe {
         csr::drtiosat::reset_write(if reset { 1 } else { 0 });
@@ -827,7 +832,9 @@ static mut LOG_BUFFER: [u8; 1 << 17] = [0; 1 << 17];
 
 #[no_mangle]
 pub extern "C" fn main_core0() -> i32 {
-    exception_vectors::set_vector_table(0x100000);
+    unsafe {
+        exception_vectors::set_vector_table(&__exceptions_start as *const u32 as u32);
+    }
     enable_l2_cache(0x8);
 
     let mut timer = GlobalTimer::start();