Changeset 021d471 in mainline for arch/mips32/src/exception.c

Timestamp:

2006-02-06T15:56:40Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9b9f195

Parents:

f5935ed

Message:

Added MIPS userspace. Currently can't make it work in gxemul.

File:

• arch/mips32/src/exception.c (modified) (3 diffs)

arch/mips32/src/exception.c

@@ -41 +41 @@
 #include <console/kconsole.h>
 #include <arch/debugger.h>
+#include <syscall/syscall.h>
 
 static char * exctable[] = {
@@ -135 +136 @@
 }
 
+#include <debug.h>
+/** Handle syscall userspace call */
+static void syscall_exception(int n, void *data)
+{
+        struct exception_regdump *pstate = (struct exception_regdump *)data;
+        
+        if (pstate->a3 < SYSCALL_END)
+                pstate->v0 = syscall_table[pstate->a3](pstate->a0,
+                                                       pstate->a1,
+                                                       pstate->a2);
+        else
+                panic("Undefined syscall %d", pstate->a3);
+        pstate->epc += 4;
+}
+
 
 void exception(struct exception_regdump *pstate)
@@ -191 +207 @@
         exc_register(EXC_CpU, "cpunus", cpuns_exception);
 #endif
-}
+        exc_register(EXC_Sys, "syscall", syscall_exception);
+}