X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fsparc-linux-os.c;h=45b076e9793d31b99645e7546dbb6681220629ad;hb=c8617f57d0413beb2890e94dabe227cef9c5ddad;hp=236acae856345bd3dc39195f08dc1abcace751df;hpb=68fd2d2dd6f265669a8957accd8a33e62786a97e;p=sbcl.git

diff --git a/src/runtime/sparc-linux-os.c b/src/runtime/sparc-linux-os.c
index 236acae..45b076e 100644
--- 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"
@@ -24,13 +25,11 @@
 #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/sysinfo.h> */
 #include <sys/time.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -38,54 +37,68 @@
 #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)
 {
-  /* printf("Offset: %d,", offset);
-     printf("Context: %p\n", context);
-     printf("PC: %x,", context->si_regs.pc);
-     printf("NPC: %x\n", context->si_regs.npc); */
-  if (offset == 0) {
-    static int zero;
-    zero = 0;
-    /* printf("Returning: %p pointing to %p\n", &zero, zero); */
-    return &zero;
-  } else if (offset < 16) {
-    /* printf("Returning: %p pointing to %p\n", &context->si_regs.u_regs[offset], 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 ?? */
-    /* printf("SP: %p\n", sp);
-       printf("Returning: %p pointing to %p\n", &(sp[offset-16]), sp[offset-16]); */
-    return &(sp[offset-16]);
-  } else
-    return 0;
+    if (offset == 0) {
+        static int zero;
+        zero = 0;
+        return &zero;
+    } else if (offset < 16) {
+        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]);
+    } else
+        return 0;
 }
 
 os_context_register_t *
 os_context_pc_addr(os_context_t *context)
 {
-  return &(context->si_regs.pc);
+    return &(context->si_regs.pc);
 }
 
 os_context_register_t *
 os_context_npc_addr(os_context_t *context)
 {
-  return &(context->si_regs.npc);
+    return &(context->si_regs.npc);
 }
 
 sigset_t *
 os_context_sigmask_addr(os_context_t *context)
 {
-  return &(context->si_mask);
+    return &(context->si_mask);
+}
+
+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)
+void
+os_flush_icache(os_vm_address_t address, os_vm_size_t length)
 {
-  /* FIXME.  There's a bit of stuff in the CMUCL version. It may or
-     may not be needed */
+    /* This is the same for linux and solaris, so see sparc-assem.S */
+    sparc_flush_icache(address,length);
 }