* Merged executionstate branch.

[cacao.git] / src / vm / jit / powerpc / linux / md-os.c

diff --git a/src/vm/jit/powerpc/linux/md-os.c b/src/vm/jit/powerpc/linux/md-os.c
index 81863aee40306b211eb3b7fe9feb7ca57862e73b..cdc937f5a8e329af60f7d9b1d1ff3aeb0bd52cec 100644 (file)
--- a/src/vm/jit/powerpc/linux/md-os.c
+++ b/src/vm/jit/powerpc/linux/md-os.c
@@ -1,9 +1,7 @@
 /* src/vm/jit/powerpc/linux/md-os.c - machine dependent PowerPC Linux functions
 
-   Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
-   C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
-   E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
-   J. Wenninger, Institut f. Computersprachen - TU Wien
+   Copyright (C) 1996-2005, 2006, 2007, 2008
+   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
 
    This file is part of CACAO.
 
@@ -34,17 +32,18 @@
 #include "vm/types.h"
 
 #include "vm/jit/powerpc/codegen.h"
+#include "vm/jit/powerpc/md.h"
 #include "vm/jit/powerpc/linux/md-abi.h"
 
-#if defined(ENABLE_THREADS)
-# include "threads/native/threads.h"
-#endif
+#include "threads/thread.h"
 
 #include "vm/builtin.h"
 #include "vm/exceptions.h"
 #include "vm/signallocal.h"
 #include "vm/stringlocal.h"
+
 #include "vm/jit/asmpart.h"
+#include "vm/jit/executionstate.h"
 
 #if defined(ENABLE_PROFILING)
 # include "vm/jit/optimizing/profile.h"
@@ -52,6 +51,8 @@
 
 #include "vm/jit/stacktrace.h"
 
+#include "vmcore/system.h"
+
 
 /* md_signal_handler_sigsegv ***************************************************
 
@@ -299,6 +300,88 @@ void md_signal_handler_sigusr2(int sig, siginfo_t *siginfo, void *_p)
 #endif
 
 
+/* md_executionstate_read ******************************************************
+
+   Read the given context into an executionstate.
+
+*******************************************************************************/
+
+void md_executionstate_read(executionstate_t *es, void *context)
+{
+       ucontext_t    *_uc;
+       mcontext_t    *_mc;
+       unsigned long *_gregs;
+       s4              i;
+
+       _uc = (ucontext_t *) context;
+
+#if defined(__UCLIBC__)
+#error Please port md_executionstate_read to __UCLIBC__
+#else
+       _mc    = _uc->uc_mcontext.uc_regs;
+       _gregs = _mc->gregs;
+#endif
+
+       /* read special registers */
+       es->pc = (u1 *) _gregs[PT_NIP];
+       es->sp = (u1 *) _gregs[REG_SP];
+       es->pv = (u1 *) _gregs[REG_PV];
+       es->ra = (u1 *) _gregs[PT_LNK];
+
+       /* read integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               es->intregs[i] = _gregs[i];
+
+       /* read float registers */
+       /* Do not use the assignment operator '=', as the type of
+        * the _mc->fpregs[i] can cause invalid conversions. */
+
+       assert(sizeof(_mc->fpregs.fpregs) == sizeof(es->fltregs));
+       system_memcpy(&es->fltregs, &_mc->fpregs.fpregs, sizeof(_mc->fpregs.fpregs));
+}
+
+
+/* md_executionstate_write *****************************************************
+
+   Write the given executionstate back to the context.
+
+*******************************************************************************/
+
+void md_executionstate_write(executionstate_t *es, void *context)
+{
+       ucontext_t    *_uc;
+       mcontext_t    *_mc;
+       unsigned long *_gregs;
+       s4              i;
+
+       _uc = (ucontext_t *) context;
+
+#if defined(__UCLIBC__)
+#error Please port md_executionstate_write to __UCLIBC__
+#else
+       _mc    = _uc->uc_mcontext.uc_regs;
+       _gregs = _mc->gregs;
+#endif
+
+       /* write integer registers */
+       for (i = 0; i < INT_REG_CNT; i++)
+               _gregs[i] = es->intregs[i];
+
+       /* write float registers */
+       /* Do not use the assignment operator '=', as the type of
+        * the _mc->fpregs[i] can cause invalid conversions. */
+
+       assert(sizeof(_mc->fpregs.fpregs) == sizeof(es->fltregs));
+       system_memcpy(&_mc->fpregs.fpregs, &es->fltregs, sizeof(_mc->fpregs.fpregs));
+
+       /* write special registers */
+       _gregs[PT_NIP] = (ptrint) es->pc;
+       _gregs[REG_SP] = (ptrint) es->sp;
+       _gregs[REG_PV] = (ptrint) es->pv;
+       _gregs[PT_LNK] = (ptrint) es->ra;
+}
+
+
 /* md_critical_section_restart *************************************************
 
    Search the critical sections tree for a matching section and set