#include "validate.h"
size_t os_vm_page_size;
-#if defined GENCGC
-#include "gencgc.h"
-#endif
/* KLUDGE: As of kernel 2.2.14 on Red Hat 6.2, there's code in the
* <sys/ucontext.h> file to define symbolic names for offsets into
* gregs[], but it's conditional on __USE_GNU and not defined, so
* we need to do this nasty absolute index magic number thing
* instead. */
-register_t *
+os_context_register_t *
os_context_register_addr(os_context_t *context, int offset)
{
switch(offset) {
}
return &context->uc_mcontext.gregs[offset];
}
-register_t *
+
+os_context_register_t *
os_context_pc_addr(os_context_t *context)
{
- return &context->uc_mcontext.gregs[14];
+ return &context->uc_mcontext.gregs[14]; /* REG_EIP */
}
-register_t *
+
+os_context_register_t *
os_context_sp_addr(os_context_t *context)
+{
+ return &context->uc_mcontext.gregs[17]; /* REG_UESP */
+}
+
+os_context_register_t *
+os_context_fp_addr(os_context_t *context)
{
- return &context->uc_mcontext.gregs[17];
+ return &context->uc_mcontext.gregs[6]; /* REG_EBP */
+}
+
+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 *
}
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)
{
}