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authorAndy Wingo <wingo@pobox.com>2008-08-21 18:39:30 -0700
committerAndy Wingo <wingo@pobox.com>2008-08-21 18:39:30 -0700
commit83495480e8e401d99158222f61d5c96fd2480e24 (patch)
treecdc006fdec9fda0909563b9daacf207e31265afa /libguile/frames.h
parentbe52b55a3213c8f683d1007a542771daa3f9a06b (diff)
downloadguile-83495480e8e401d99158222f61d5c96fd2480e24.tar.gz
merge guile-vm into libguile itself
* ice-9/boot-9.scm: Only define load-compiled as #f if it's not already defined, which won't normally be the case. * libguile/guile-vm.c: Removed, there's no more guile-vm binary. * libguile/frames.c: (with change frame? -> heap-frame?) * libguile/frames.h: * libguile/instructions.c: * libguile/instructions.h: * libguile/objcodes.c: * libguile/objcodes.h: * libguile/programs.c: * libguile/programs.h: * libguile/vm-bootstrap.h: (was bootstrap.h) * libguile/vm-engine.c: (was vm_engine.c) * libguile/vm-engine.h: (was vm_engine.h) * libguile/vm-expand.h: (was vm_expand.h) * libguile/vm-i-loader.c: (was vm_loader.c) * libguile/vm-i-scheme.c: (was vm_scheme.c) * libguile/vm-i-system.c: (was vm_system.c) * libguile/vm.c: * libguile/vm.h: These files moved here from src/, as guile-vm is now a part of libguile. * libguile/init.c: Bootstrap the VM. Yay! * libguile/Makefile.am: The necessary chicanery here. * module/system/vm/Makefile.am: * module/system/vm/bootstrap.scm: * module/system/vm/frame.scm: * module/system/vm/instruction.scm: * module/system/vm/objcode.scm: * module/system/vm/program.scm: * module/system/vm/vm.scm: * pre-inst-guile-env.in: Add builddirs to the load path; add module/ to the path in the empty-$GUILE_LOAD_PATH case as well. * src/Makefile.am: Moved out everything except guilec and guile-disasm, which probably should be moved to the scripts directory? * testsuite/Makefile.am: Update to find guile-vm in the right place. * module/system/vm/Makefile.am: * module/system/vm/bootstrap.scm: Removed bootstrap.scm, scm_init_guile handles the bootstrapping for us. * module/system/vm/frame.scm: * module/system/vm/instruction.scm: * module/system/vm/objcode.scm: * module/system/vm/program.scm: * module/system/vm/vm.scm: Call the init functions in libguile; should fix at some point to avoid the dlopen?
Diffstat (limited to 'libguile/frames.h')
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1 files changed, 125 insertions, 0 deletions
diff --git a/libguile/frames.h b/libguile/frames.h
new file mode 100644
index 000000000..53fc4e858
--- /dev/null
+++ b/libguile/frames.h
@@ -0,0 +1,125 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ *
+ * As a special exception, the Free Software Foundation gives permission
+ * for additional uses of the text contained in its release of GUILE.
+ *
+ * The exception is that, if you link the GUILE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * Your use of that executable is in no way restricted on account of
+ * linking the GUILE library code into it.
+ *
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ *
+ * This exception applies only to the code released by the
+ * Free Software Foundation under the name GUILE. If you copy
+ * code from other Free Software Foundation releases into a copy of
+ * GUILE, as the General Public License permits, the exception does
+ * not apply to the code that you add in this way. To avoid misleading
+ * anyone as to the status of such modified files, you must delete
+ * this exception notice from them.
+ *
+ * If you write modifications of your own for GUILE, it is your choice
+ * whether to permit this exception to apply to your modifications.
+ * If you do not wish that, delete this exception notice. */
+
+#ifndef _SCM_FRAMES_H_
+#define _SCM_FRAMES_H_
+
+#include <libguile.h>
+#include "programs.h"
+
+
+/*
+ * VM frames
+ */
+
+/* VM Frame Layout
+ ---------------
+
+ | | <- fp + bp->nargs + bp->nlocs + 4
+ +------------------+ = SCM_FRAME_UPPER_ADDRESS (fp)
+ | Return address |
+ | Dynamic link |
+ | Heap link |
+ | External link | <- fp + bp->nargs + bp->nlocs
+ | Local variable 1 | = SCM_FRAME_DATA_ADDRESS (fp)
+ | Local variable 0 | <- fp + bp->nargs
+ | Argument 1 |
+ | Argument 0 | <- fp
+ | Program | <- fp - 1
+ +------------------+ = SCM_FRAME_LOWER_ADDRESS (fp)
+ | |
+
+ As can be inferred from this drawing, it is assumed that
+ `sizeof (SCM *) == sizeof (SCM)', since pointers (the `link' parts) are
+ assumed to be as long as SCM objects. */
+
+#define SCM_FRAME_DATA_ADDRESS(fp) \
+ (fp + SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nargs \
+ + SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nlocs)
+#define SCM_FRAME_UPPER_ADDRESS(fp) (SCM_FRAME_DATA_ADDRESS (fp) + 4)
+#define SCM_FRAME_LOWER_ADDRESS(fp) (fp - 1)
+
+#define SCM_FRAME_BYTE_CAST(x) ((scm_byte_t *) SCM_UNPACK (x))
+#define SCM_FRAME_STACK_CAST(x) ((SCM *) SCM_UNPACK (x))
+
+#define SCM_FRAME_RETURN_ADDRESS(fp) \
+ (SCM_FRAME_BYTE_CAST (SCM_FRAME_DATA_ADDRESS (fp)[3]))
+#define SCM_FRAME_DYNAMIC_LINK(fp) \
+ (SCM_FRAME_STACK_CAST (SCM_FRAME_DATA_ADDRESS (fp)[2]))
+#define SCM_FRAME_SET_DYNAMIC_LINK(fp, dl) \
+ ((SCM_FRAME_DATA_ADDRESS (fp)[2])) = (SCM)(dl);
+#define SCM_FRAME_HEAP_LINK(fp) (SCM_FRAME_DATA_ADDRESS (fp)[1])
+#define SCM_FRAME_EXTERNAL_LINK(fp) (SCM_FRAME_DATA_ADDRESS (fp)[0])
+#define SCM_FRAME_VARIABLE(fp,i) fp[i]
+#define SCM_FRAME_PROGRAM(fp) fp[-1]
+
+
+/*
+ * Heap frames
+ */
+
+extern scm_t_bits scm_tc16_heap_frame;
+
+#define SCM_HEAP_FRAME_P(x) SCM_SMOB_PREDICATE (scm_tc16_heap_frame, x)
+#define SCM_HEAP_FRAME_DATA(f) ((SCM *) SCM_SMOB_DATA (f))
+#define SCM_HEAP_FRAME_SELF(f) (SCM_HEAP_FRAME_DATA (f) + 0)
+#define SCM_HEAP_FRAME_POINTER(f) (SCM_HEAP_FRAME_DATA (f) + 2)
+#define SCM_VALIDATE_HEAP_FRAME(p,x) SCM_MAKE_VALIDATE (p, x, HEAP_FRAME_P)
+
+extern SCM scm_heap_frame_p (SCM obj);
+extern SCM scm_frame_program (SCM frame);
+extern SCM scm_frame_local_ref (SCM frame, SCM index);
+extern SCM scm_frame_local_set_x (SCM frame, SCM index, SCM val);
+extern SCM scm_frame_return_address (SCM frame);
+extern SCM scm_frame_dynamic_link (SCM frame);
+extern SCM scm_frame_external_link (SCM frame);
+
+extern SCM scm_c_make_heap_frame (SCM *fp);
+extern void scm_bootstrap_frames (void);
+extern void scm_init_frames (void);
+
+#endif /* _SCM_FRAMES_H_ */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/