0.7.5.18:

[sbcl.git] / src / runtime / x86-linux-os.c

diff --git a/src/runtime/x86-linux-os.c b/src/runtime/x86-linux-os.c
index ed7a9e0..3d6e8a3 100644 (file)
--- a/src/runtime/x86-linux-os.c
+++ b/src/runtime/x86-linux-os.c
@@ -76,6 +76,13 @@ os_context_sp_addr(os_context_t *context)
     return &context->uc_mcontext.gregs[17];
 }
 
+unsigned long
+os_context_fp_control(os_context_t *context)
+{
+    return ((((context->uc_mcontext.fpregs->cw) & 0xffff) ^ 0x3f) |
+           (((context->uc_mcontext.fpregs->sw) & 0xffff) << 16));
+}
+
 sigset_t *
 os_context_sigmask_addr(os_context_t *context)
 {
@@ -83,6 +90,12 @@ os_context_sigmask_addr(os_context_t *context)
 }
 
 void
+os_restore_fp_control(os_context_t *context)
+{
+    asm ("fldcw %0" : : "m" (context->uc_mcontext.fpregs->cw));
+}
+
+void
 os_flush_icache(os_vm_address_t address, os_vm_size_t length)
 {
 }