Changes in kernel/arch/mips32/src/mips32.c [5a5269d:dabaa83] in mainline

File:

• kernel/arch/mips32/src/mips32.c (modified) (2 diffs)

kernel/arch/mips32/src/mips32.c

@@ -71 +71 @@
 arch_ops_t *arch_ops = &mips32_ops;
 
+/*
+ * Why the linker moves the variable 64K away in assembler
+ * when not in .text section?
+ */
+
 /* Stack pointer saved when entering user mode */
-// FIXME: This won't work with SMP unless thread creation is globally serialized.
-uintptr_t supervisor_sp;
+uintptr_t supervisor_sp __attribute__((section(".text")));
 
 size_t cpu_count = 0;
@@ -167 +171 @@
         cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit |
             cp0_status_um_bit | cp0_status_ie_enabled_bit));
-        cp0_epc_write(kernel_uarg->uspace_entry);
-        userspace_asm(kernel_uarg->uspace_stack +
-            kernel_uarg->uspace_stack_size,
-            kernel_uarg->uspace_uarg,
-            kernel_uarg->uspace_entry);
+        cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry);
+        userspace_asm(((uintptr_t) kernel_uarg->uspace_stack +
+            kernel_uarg->uspace_stack_size),
+            (uintptr_t) kernel_uarg->uspace_uarg,
+            (uintptr_t) kernel_uarg->uspace_entry);
 
         while (true)