* src/vm/jit/arm/linux/md-os.c (md_executionstate_read): New function

(but not implemted yet).
(md_executionstate_write): Likewise.

diff --git a/src/vm/jit/arm/linux/md-os.c b/src/vm/jit/arm/linux/md-os.c
index 568e6a048ce1e71e10477b483c84ba8034e584db..37aaabcdc46f8a151b9b4a7624faf3e6873825fd 100644 (file)
--- a/src/vm/jit/arm/linux/md-os.c
+++ b/src/vm/jit/arm/linux/md-os.c
@@ -57,6 +57,7 @@ typedef struct ucontext {
 #include "vm/vm.h"
 
 #include "vm/jit/asmpart.h"
+#include "vm/jit/executionstate.h"
 #include "vm/jit/stacktrace.h"
 #include "vm/jit/trap.h"
 
@@ -232,6 +233,82 @@ void md_signal_handler_sigusr2(int sig, siginfo_t *siginfo, void *_p)
 #endif
 
 
+/**
+ * Read the given context into an executionstate.
+ *
+ * @param es      execution state
+ * @param context machine context
+ */
+void md_executionstate_read(executionstate_t *es, void *context)
+{
+       vm_abort("md_executionstate_read: IMPLEMENT ME!");
+
+#if 0
+       ucontext_t *_uc;
+       mcontext_t *_mc;
+       int         i;
+
+       _uc = (ucontext_t *) context;
+       _mc = &_uc->uc_mcontext;
+
+       /* read special registers */
+       es->pc = (u1 *) _mc->sc_pc;
+       es->sp = (u1 *) _mc->sc_regs[REG_SP];
+       es->pv = (u1 *) _mc->sc_regs[REG_PV];
+       es->ra = (u1 *) _mc->sc_regs[REG_RA];
+
+       /* read integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               es->intregs[i] = _mc->sc_regs[i];
+
+       /* read float registers */
+       /* Do not use the assignment operator '=', as the type of
+        * the _mc->sc_fpregs[i] can cause invalid conversions. */
+
+       assert(sizeof(_mc->sc_fpregs) == sizeof(es->fltregs));
+       system_memcpy(&es->fltregs, &_mc->sc_fpregs, sizeof(_mc->sc_fpregs));
+#endif
+}
+
+
+/**
+ * Write the given executionstate back to the context.
+ *
+ * @param es      execution state
+ * @param context machine context
+ */
+void md_executionstate_write(executionstate_t *es, void *context)
+{
+       vm_abort("md_executionstate_write: IMPLEMENT ME!");
+
+#if 0
+       ucontext_t *_uc;
+       mcontext_t *_mc;
+       int         i;
+
+       _uc = (ucontext_t *) context;
+       _mc = &_uc->uc_mcontext;
+
+       /* write integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               _mc->sc_regs[i] = es->intregs[i];
+
+       /* write float registers */
+       /* Do not use the assignment operator '=', as the type of
+        * the _mc->sc_fpregs[i] can cause invalid conversions. */
+
+       assert(sizeof(_mc->sc_fpregs) == sizeof(es->fltregs));
+       system_memcpy(&_mc->sc_fpregs, &es->fltregs, sizeof(_mc->sc_fpregs));
+
+       /* write special registers */
+       _mc->sc_pc           = (ptrint) es->pc;
+       _mc->sc_regs[REG_SP] = (ptrint) es->sp;
+       _mc->sc_regs[REG_PV] = (ptrint) es->pv;
+       _mc->sc_regs[REG_RA] = (ptrint) es->ra;
+#endif
+}
+
+
 /* md_critical_section_restart *************************************************
 
    Search the critical sections tree for a matching section and set