0.7.7.9:

[sbcl.git] / src / runtime / mips-linux-os.c

diff --git a/src/runtime/mips-linux-os.c b/src/runtime/mips-linux-os.c
new file mode 100644 (file)
index 0000000..f92a232
--- /dev/null
+++ b/src/runtime/mips-linux-os.c
@@ -0,0 +1,95 @@
+/*
+ * This is the MIPS Linux incarnation of arch-dependent OS-dependent
+ * routines. See also "linux-os.c".
+ */
+
+/*
+ * This software is part of the SBCL system. See the README file for
+ * more information.
+ *
+ * This software is derived from the CMU CL system, which was
+ * written at Carnegie Mellon University and released into the
+ * public domain. The software is in the public domain and is
+ * provided with absolutely no warranty. See the COPYING and CREDITS
+ * files for more information.
+ */
+
+#include <stdio.h>
+#include <sys/param.h>
+#include <sys/file.h>
+#include "./signal.h"
+#include "os.h"
+#include "arch.h"
+#include "globals.h"
+#include "interrupt.h"
+#include "interr.h"
+#include "lispregs.h"
+#include "sbcl.h"
+#include <sys/socket.h>
+#include <sys/utsname.h>
+
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "validate.h"
+/* for cacheflush() */
+#include <asm/cachectl.h>
+
+/* FIXME: For CAUSEF_BD */
+#include <asm/mipsregs.h>
+size_t os_vm_page_size;
+
+
+os_context_register_t *
+os_context_register_addr(os_context_t *context, int offset)
+{
+    if (offset == 0) {
+       /* KLUDGE: I'm not sure, but it's possible that Linux puts the
+           contents of the Processor Status Word in the (wired-zero)
+           slot in the mcontext. In any case, the following is
+           unlikely to do any harm: */
+       static unsigned long long zero;
+       zero = 0;
+       return &zero;
+    } else {
+       return &(((struct sigcontext *) &(context->uc_mcontext))->sc_regs[offset]);
+    }
+}
+
+os_context_register_t *
+os_context_pc_addr(os_context_t *context)
+{
+    /* Why do I get all the silly ports? -- CSR, 2002-08-11 */
+    return &(((struct sigcontext *) &(context->uc_mcontext))->sc_pc);
+}
+
+sigset_t *
+os_context_sigmask_addr(os_context_t *context)
+{
+    return &(context->uc_sigmask);
+}
+
+void 
+os_restore_fp_control(os_context_t *context)
+{
+    /* FIXME: Probably do something. */
+}
+
+unsigned int
+os_context_bd_cause(os_context_t *context)
+{
+    /* We need to see if whatever happened, happened because of a
+       branch delay event */
+    return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause 
+           & CAUSEF_BD);
+}
+
+void 
+os_flush_icache(os_vm_address_t address, os_vm_size_t length)
+{
+    if (cacheflush(address, length, ICACHE) == -1)
+       perror("cacheflush");
+}