[pk,fesvr] improved proxykernel build system

Now uses a modified MCPPBS.  Add --host=riscv to configure path.

Front-end server now just searches PATH for riscv-pk, so just install the pk
to somewhere in your path.

1 files changed, 58 insertions, 0 deletions

diff --git a/pk/handlers.c b/pk/handlers.c
new file mode 100644
index 0000000..6cc5958
--- /dev/null
+++ b/pk/handlers.c
@@ -0,0 +1,58 @@
+#include "pcr.h"
+#include "pk.h"
+
+void handle_breakpoint(trapframe_t* tf)
+{
+  printk("Breakpoint\n");
+  dump_tf(tf);
+  tf->epc += 4;
+  pop_tf(tf);
+}
+
+void handle_fp_disabled(trapframe_t* tf)
+{
+  tf->sr |= SR_EF;
+  pop_tf(tf);
+}
+
+void handle_badtrap(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("Bad trap vector!");
+}
+
+void handle_privileged_instruction(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("A privileged instruction was executed!");
+}
+
+void handle_illegal_instruction(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("An illegal instruction was executed!");
+}
+
+void handle_misaligned_fetch(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("Misaligned instruction access!");
+}
+
+void handle_misaligned_ldst(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("Misaligned data access!");
+}
+
+void handle_fault_fetch(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("Faulting instruction access!");
+}
+
+void handle_fault_ldst(trapframe_t* tf)
+{
+  dump_tf(tf);
+  panic("Faulting data access!");
+}