cortex-m3 syscall changed to immediate constant instead of register value

Author: itzandroidtab

rtos/scheduler.hpp

@@ -139,7 +139,7 @@ namespace klib::rtos {
             Irq::template register_irq<Irq::arm_vector::pendsv>(pendsv);
 
             // register the syscall handler
-            Irq::template register_irq<Irq::arm_vector::svcall>(klib::target::rtos::detail::sycall_handler<scheduler>);
+            Irq::template register_irq<Irq::arm_vector::svcall>(klib::target::rtos::detail::syscall_handler<scheduler>);
 
             // add the idle task to the scheduler. This task is always ready to run
             create_task(&idle_task);

targets/arm/rtos/cortex-m3.hpp

@@ -202,7 +202,7 @@ namespace klib::rtos::cortex_m3 {
     }
 
     template <typename Scheduler>
-    static __attribute__((naked)) void sycall_handler() {
+    static __attribute__((naked)) void syscall_handler() {
         // get the values from r0-r3 and the syscall number from r4
         __asm__ volatile(
             // store the link register and r4
@@ -228,7 +228,7 @@ namespace klib::rtos::cortex_m3 {
             // return from exception
             "bx lr\n"
             :
-            : [syscall_handler]"r"(Scheduler::syscall_handler)
+            : [syscall_handler]"i"(Scheduler::syscall_handler)
             : "r0", "r1", "r2", "r3", "r4", "memory"
         );
     }