Simplify (and robustify) regular PACKing

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

diff --git a/src/runtime/sparc-linux-os.c b/src/runtime/sparc-linux-os.c
index 60c1bc5..45b076e 100644 (file)
--- a/src/runtime/sparc-linux-os.c
+++ b/src/runtime/sparc-linux-os.c
@@ -17,6 +17,7 @@
 #include <stdio.h>
 #include <sys/param.h>
 #include <sys/file.h>
+#include "sbcl.h"
 #include "./signal.h"
 #include "os.h"
 #include "arch.h"
@@ -24,7 +25,6 @@
 #include "interrupt.h"
 #include "interr.h"
 #include "lispregs.h"
-#include "sbcl.h"
 #include <sys/socket.h>
 #include <sys/utsname.h>
 
@@ -37,24 +37,31 @@
 #include "validate.h"
 size_t os_vm_page_size;
 
-#if defined GENCGC              /* unlikely ... */
-#include "gencgc.h"
+#ifdef LISP_FEATURE_SB_THREAD
+#error "Define threading support functions"
+#else
+int arch_os_thread_init(struct thread *thread) {
+    return 1;                   /* success */
+}
+int arch_os_thread_cleanup(struct thread *thread) {
+    return 1;                   /* success */
+}
 #endif
 
 os_context_register_t   *
 os_context_register_addr(os_context_t *context, int offset)
 {
     if (offset == 0) {
-       static int zero;
-       zero = 0;
-       return &zero;
+        static int zero;
+        zero = 0;
+        return &zero;
     } else if (offset < 16) {
-       return &context->si_regs.u_regs[offset];
+        return &context->si_regs.u_regs[offset];
     } else if (offset < 32) {
-       int *sp = (int*) context->si_regs.u_regs[14]; /* Stack Pointer */
-       return &(sp[offset-16]);
+        int *sp = (int*) context->si_regs.u_regs[14]; /* Stack Pointer */
+        return &(sp[offset-16]);
     } else
-       return 0;
+        return 0;
 }
 
 os_context_register_t *
@@ -75,7 +82,22 @@ os_context_sigmask_addr(os_context_t *context)
     return &(context->si_mask);
 }
 
-void os_flush_icache(os_vm_address_t address, os_vm_size_t length)
+void
+os_restore_fp_control(os_context_t *context)
+{
+    /* Included here, for reference, is an attempt at the PPC
+       variant. If it weren't the case that SPARC/Linux gave a Bus
+       Error on floating point exceptions, something like this would
+       have to be done. -- CSR, 2002-07-13
+
+    asm ("msfsf $255, %0" : : "m"
+         (os_context_fp_control(context) &
+          ~ (FLOAT_STICKY_BITS_MASK | FLOAT_EXCEPTIONS_BYTE_MASK)));
+    */
+}
+
+void
+os_flush_icache(os_vm_address_t address, os_vm_size_t length)
 {
     /* This is the same for linux and solaris, so see sparc-assem.S */
     sparc_flush_icache(address,length);