* src/vm/jit/i386/linux/md-os.c (md_replace_executionstate_read): Implemented.

(md_replace_executionstate_write): Likewise.

diff --git a/src/vm/jit/i386/linux/md-os.c b/src/vm/jit/i386/linux/md-os.c
index d8d6f8181d399124fae1cc8c5db75baed4cae8f3..13a585970c2e7d59d89f8f72e4bd40688e56adb6 100644 (file)
--- a/src/vm/jit/i386/linux/md-os.c
+++ b/src/vm/jit/i386/linux/md-os.c
@@ -302,6 +302,65 @@ void md_signal_handler_sigusr2(int sig, siginfo_t *siginfo, void *_p)
 #endif
 
 
+/* md_replace_executionstate_read **********************************************
+
+   Read the given context into an executionstate for Replacement.
+
+*******************************************************************************/
+
+#if defined(ENABLE_REPLACEMENT)
+void md_replace_executionstate_read(executionstate_t *es, void *context)
+{
+       ucontext_t *_uc;
+       mcontext_t *_mc;
+       s4          i;
+
+       _uc = (ucontext_t *) context;
+       _mc = &_uc->uc_mcontext;
+
+       /* read special registers */
+       es->pc = (u1 *) _mc->gregs[REG_EIP];
+       es->sp = (u1 *) _mc->gregs[REG_ESP];
+       es->pv = NULL;                   /* pv must be looked up via AVL tree */
+
+       /* read integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               es->intregs[i] = _mc->gregs[REG_EAX - i];
+
+       /* read float registers */
+       for (i = 0; i < FLT_REG_CNT; i++)
+               es->fltregs[i] = 0xdeadbeefdeadbeefULL;
+}
+#endif
+
+
+/* md_replace_executionstate_write *********************************************
+
+   Write the given executionstate back to the context for Replacement.
+
+*******************************************************************************/
+
+#if defined(ENABLE_REPLACEMENT)
+void md_replace_executionstate_write(executionstate_t *es, void *context)
+{
+       ucontext_t *_uc;
+       mcontext_t *_mc;
+       s4          i;
+
+       _uc = (ucontext_t *) context;
+       _mc = &_uc->uc_mcontext;
+
+       /* write integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               _mc->gregs[REG_EAX - i] = es->intregs[i];
+
+       /* write special registers */
+       _mc->gregs[REG_EIP] = (ptrint) es->pc;
+       _mc->gregs[REG_ESP] = (ptrint) es->sp;
+}
+#endif
+
+
 /* md_critical_section_restart *************************************************
 
    Search the critical sections tree for a matching section and set