jit: initial commit

.gitattributes

@@ -1,5 +1,6 @@
 src/flamenco/types/fd_types.h linguist-generated=true
 src/flamenco/types/fd_types.c linguist-generated=true
+src/flamenco/vm/jit/fd_vm_jitproto.c linguist-generated=true
 *.pb.h linguist-generated=true
 *.pb.c linguist-generated=true
 corpus/** binary

NOTICE

@@ -424,3 +424,32 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
+
+=======================================================================
+
+The dasm header files in src/flamenco/vm/jit are copied from the LuaJIT
+project.  https://luajit.org/  Imported ca 2024-Aug.
+
+LuaJIT -- a Just-In-Time Compiler for Lua. https://luajit.org/
+
+Copyright (C) 2005-2023 Mike Pall. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+[ MIT license: https://www.opensource.org/licenses/mit-license.php ]

deps.sh

@@ -110,11 +110,15 @@ fetch () {
     checkout_repo zlib      https://github.com/madler/zlib            "v1.3.1"
     checkout_repo rocksdb   https://github.com/facebook/rocksdb       "v9.4.0"
     checkout_repo snappy    https://github.com/google/snappy          "1.2.1"
+    checkout_repo luajit    https://github.com/LuaJIT/LuaJIT          "v2.0.5"
   fi
 }
 
 check_fedora_pkgs () {
   local REQUIRED_RPMS=( perl autoconf gettext-devel automake flex bison cmake clang gmp-devel protobuf-compiler llvm-toolset lcov systemd-devel pkgconf )
+  if [[ $DEVMODE == 1 ]]; then
+    REQUIRED_RPMS+=( lua5.1 lua5.1-bitop )
+  fi
 
   echo "[~] Checking for required RPM packages"
 
@@ -139,6 +143,9 @@ check_fedora_pkgs () {
 
 check_debian_pkgs () {
   local REQUIRED_DEBS=( perl autoconf gettext automake autopoint flex bison build-essential gcc-multilib protobuf-compiler llvm lcov libgmp-dev libudev-dev cmake libclang-dev pkgconf )
+  if [[ $DEVMODE == 1 ]]; then
+    REQUIRED_DEBS+=( lua5.1 lua5.1-bitop )
+  fi
 
   echo "[~] Checking for required DEB packages"
 

src/flamenco/vm/jit/Local.mk

@@ -0,0 +1,3 @@
+ifdef FD_HAS_X86
+$(call make-bin,fd_vm_jitproto,fd_vm_jitproto,fd_flamenco fd_disco fd_funk fd_ballet fd_util,$(SECP256K1_LIBS))
+endif

src/flamenco/vm/jit/Makefile

@@ -0,0 +1,14 @@
+# Run 'make vendor' to refresh dynasm headers from the latest LuaJIT checkout.
+
+LUA ?= lua-5.1
+
+.PHONY: generate
+generate: fd_vm_jitproto.c
+
+fd_vm_jitproto.c: fd_vm_jitproto.dasc
+	$(LUA) ../../../../opt/git/luajit/dynasm/dynasm.lua -o $@ $<
+
+.PHONY: vendor
+vendor:
+	rm -v dasm_{proto,x86}.h
+	cp ../../../../opt/git/luajit/dynasm/dasm_{proto,x86}.h .

src/flamenco/vm/jit/dasm_proto.h

@@ -0,0 +1,83 @@
+/*
+** DynASM encoding engine prototypes.
+** Copyright (C) 2005-2017 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#ifndef _DASM_PROTO_H
+#define _DASM_PROTO_H
+
+#include <stddef.h>
+#include <stdarg.h>
+
+#define DASM_IDENT	"DynASM 1.3.0"
+#define DASM_VERSION	10300	/* 1.3.0 */
+
+#ifndef Dst_DECL
+#define Dst_DECL	dasm_State **Dst
+#endif
+
+#ifndef Dst_REF
+#define Dst_REF		(*Dst)
+#endif
+
+#ifndef DASM_FDEF
+#define DASM_FDEF	extern
+#endif
+
+#ifndef DASM_M_GROW
+#define DASM_M_GROW(ctx, t, p, sz, need) \
+  do { \
+    size_t _sz = (sz), _need = (need); \
+    if (_sz < _need) { \
+      if (_sz < 16) _sz = 16; \
+      while (_sz < _need) _sz += _sz; \
+      (p) = (t *)realloc((p), _sz); \
+      if ((p) == NULL) exit(1); \
+      (sz) = _sz; \
+    } \
+  } while(0)
+#endif
+
+#ifndef DASM_M_FREE
+#define DASM_M_FREE(ctx, p, sz)	free(p)
+#endif
+
+/* Internal DynASM encoder state. */
+typedef struct dasm_State dasm_State;
+
+
+/* Initialize and free DynASM state. */
+DASM_FDEF void dasm_init(Dst_DECL, int maxsection);
+DASM_FDEF void dasm_free(Dst_DECL);
+
+/* Setup global array. Must be called before dasm_setup(). */
+DASM_FDEF void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl);
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+DASM_FDEF void dasm_growpc(Dst_DECL, unsigned int maxpc);
+
+/* Setup encoder. */
+DASM_FDEF void dasm_setup(Dst_DECL, const void *actionlist);
+
+/* Feed encoder with actions. Calls are generated by pre-processor. */
+DASM_FDEF void dasm_put(Dst_DECL, int start, ...);
+
+/* Link sections and return the resulting size. */
+DASM_FDEF int dasm_link(Dst_DECL, size_t *szp);
+
+/* Encode sections into buffer. */
+DASM_FDEF int dasm_encode(Dst_DECL, void *buffer);
+
+/* Get PC label offset. */
+DASM_FDEF int dasm_getpclabel(Dst_DECL, unsigned int pc);
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+DASM_FDEF int dasm_checkstep(Dst_DECL, int secmatch);
+#else
+#define dasm_checkstep(a, b)	0
+#endif
+
+
+#endif /* _DASM_PROTO_H */