*/
#include <stdio.h>
-#include <sys/param.h>
-#include <sys/file.h>
+#include <signal.h>
+
+/* for cacheflush() */
+#include <sys/cachectl.h>
+
#include "sbcl.h"
-#include "./signal.h"
#include "os.h"
#include "arch.h"
-#include "globals.h"
-#include "interrupt.h"
-#include "interr.h"
-#include "lispregs.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>
+#define CAUSEF_BD (1 << 31)
-/* FIXME: For CAUSEF_BD */
-#include <asm/mipsregs.h>
size_t os_vm_page_size;
+int
+arch_os_thread_init(struct thread *thread)
+{
#ifdef LISP_FEATURE_SB_THREAD
-#error "Define threading support functions"
-#else
-int arch_os_thread_init(struct thread *thread) {
+#warning "Check threading support functions"
+#endif
return 1; /* success */
}
-int arch_os_thread_cleanup(struct thread *thread) {
+
+int
+arch_os_thread_cleanup(struct thread *thread)
+{
+#ifdef LISP_FEATURE_SB_THREAD
+#warning "Check threading support functions"
+#endif
return 1; /* success */
}
-#endif
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]);
- }
+ mcontext_t *mctx = &context->uc_mcontext;
+ struct sigcontext *ctx = (struct sigcontext *)mctx;
+ return &ctx->sc_regs[offset];
+}
+
+os_context_register_t *
+os_context_fpregister_addr(os_context_t *context, int offset)
+{
+ mcontext_t *mctx = &context->uc_mcontext;
+ struct sigcontext *ctx = (struct sigcontext *)mctx;
+ return &ctx->sc_fpregs[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);
+ mcontext_t *mctx = &context->uc_mcontext;
+ struct sigcontext *ctx = (struct sigcontext *)mctx;
+ return &ctx->sc_pc;
}
sigset_t *
return &(context->uc_sigmask);
}
-void
+unsigned int
+os_context_fp_control(os_context_t *context)
+{
+ mcontext_t *mctx = &context->uc_mcontext;
+ struct sigcontext *ctx = (struct sigcontext *)mctx;
+ return ctx->sc_fpc_csr;
+}
+
+void
os_restore_fp_control(os_context_t *context)
{
- /* FIXME: Probably do something. */
+ unsigned int ctl = os_context_fp_control(context);
+ ctl &= ~(FLOAT_STICKY_BITS_MASK | FLOAT_EXCEPTIONS_BYTE_MASK);
+ arch_set_fp_control(ctl);
}
unsigned int
loop" where a (BREAK 16) not in a branch delay slot would have
CAUSEF_BD filled. So, we comment
- return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause
- & CAUSEF_BD);
+ return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause
+ & CAUSEF_BD);
out and return 0 always. -- CSR, 2002-09-02 */
+ /* Unfortunately, returning 0 fails for taken branches because
+ os_context_bd_cause is also used to find out if a branch
+ emulation is needed. We work around that by checking if the
+ current instruction is a jump or a branch. */
+ extern boolean arch_insn_with_bdelay_p(unsigned int insn);
+
+ os_vm_address_t addr
+ = (os_vm_address_t)(unsigned int)*os_context_pc_addr(context);
+ unsigned int insn = *(unsigned int *)addr;
+
+ if (arch_insn_with_bdelay_p(insn))
+ return CAUSEF_BD;
+
return 0;
}
-void
+void
os_flush_icache(os_vm_address_t address, os_vm_size_t length)
{
if (cacheflush(address, length, ICACHE) == -1)
- perror("cacheflush");
+ perror("cacheflush");
}