var opt_output: OptionString = new OptionString("Output file", "-o", "--output")
# --no-cc
var opt_no_cc: OptionBool = new OptionBool("Do not invoke C compiler", "--no-cc")
+ # --cc-paths
+ var opt_cc_path: OptionArray = new OptionArray("Set include path for C header files (may be used more than once)", "--cc-path")
# --make-flags
var opt_make_flags: OptionString = new OptionString("Additional options to make", "--make-flags")
# --hardening
end
redef class ModelBuilder
+ # The list of directories to search for included C headers (-I for C compilers)
+ # The list is initially set with :
+ # * the toolcontext --cc-path option
+ # * the NIT_CC_PATH environment variable
+ # * some heuristics including the NIT_DIR environment variable and the progname of the process
+ # Path can be added (or removed) by the client
+ var cc_paths = new Array[String]
+
+ redef init(model, toolcontext)
+ do
+ super
+
+ # Look for the the Nit clib path
+ var path_env = "NIT_DIR".environ
+ if not path_env.is_empty then
+ var libname = "{path_env}/clib"
+ if libname.file_exists then cc_paths.add(libname)
+ end
+
+ var libname = "{sys.program_name.dirname}/../clib"
+ if libname.file_exists then cc_paths.add(libname.simplify_path)
+
+ if cc_paths.is_empty then
+ toolcontext.error(null, "Cannot determine the nit clib path. define envvar NIT_DIR.")
+ end
+
+ # Add user defined cc_paths
+ cc_paths.append(toolcontext.opt_cc_path.value)
+
+ path_env = "NIT_CC_PATH".environ
+ if not path_env.is_empty then
+ cc_paths.append(path_env.split_with(':'))
+ end
+
+ end
+
protected fun write_and_make(compiler: AbstractCompiler)
do
var mainmodule = compiler.mainmodule
# A single C file regroups many compiled rumtime functions
# Note that we do not try to be clever an a small change in a Nit source file may change the content of all the generated .c files
var time0 = get_time
+ self.toolcontext.info("*** WRITING C ***", 1)
".nit_compile".mkdir
var outname = self.toolcontext.opt_output.value
if outname == null then
- outname = "{mainmodule.name}.bin"
+ outname = "{mainmodule.name}"
end
- var hfilename = ".nit_compile/{mainmodule.name}.1.h"
- var h = new OFStream.open(hfilename)
+ var hfilename = compiler.header.file.name + ".h"
+ var hfilepath = ".nit_compile/{hfilename}"
+ var h = new OFStream.open(hfilepath)
for l in compiler.header.decl_lines do
h.write l
h.write "\n"
end
+ for l in compiler.header.lines do
+ h.write l
+ h.write "\n"
+ end
h.close
var cfiles = new Array[String]
for f in compiler.files do
var i = 0
- var file: nullable OFStream = null
+ var hfile: nullable OFStream = null
var count = 0
+ var cfilename = ".nit_compile/{f.name}.0.h"
+ hfile = new OFStream.open(cfilename)
+ hfile.write "#include \"{hfilename}\"\n"
+ for key in f.required_declarations do
+ if not compiler.provided_declarations.has_key(key) then
+ print "No provided declaration for {key}"
+ abort
+ end
+ hfile.write compiler.provided_declarations[key]
+ hfile.write "\n"
+ end
+ hfile.close
+ var file: nullable OFStream = null
for vis in f.writers do
- count += vis.lines.length
+ if vis == compiler.header then continue
+ var total_lines = vis.lines.length + vis.decl_lines.length
+ if total_lines == 0 then continue
+ count += total_lines
if file == null or count > 10000 then
i += 1
if file != null then file.close
- var cfilename = ".nit_compile/{f.name}.{i}.c"
+ cfilename = ".nit_compile/{f.name}.{i}.c"
self.toolcontext.info("new C source files to compile: {cfilename}", 3)
cfiles.add(cfilename)
file = new OFStream.open(cfilename)
- file.write "#include \"{mainmodule.name}.1.h\"\n"
- count = vis.lines.length
+ file.write "#include \"{f.name}.0.h\"\n"
+ count = total_lines
end
- if vis != compiler.header then
- for l in vis.decl_lines do
- file.write l
- file.write "\n"
- end
+ for l in vis.decl_lines do
+ file.write l
+ file.write "\n"
end
for l in vis.lines do
file.write l
var makename = ".nit_compile/{mainmodule.name}.mk"
var makefile = new OFStream.open(makename)
- makefile.write("CC = ccache cc\nCFLAGS = -g -O2\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc\n\n")
+ var cc_includes = ""
+ for p in cc_paths do
+ #p = "..".join_path(p)
+ cc_includes += " -I \"" + p + "\""
+ end
+ makefile.write("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc\n\n")
makefile.write("all: {outname}\n\n")
var ofiles = new Array[String]
# Compile each generated file
for f in cfiles do
var o = f.strip_extension(".c") + ".o"
- makefile.write("{o}: {f}\n\t$(CC) $(CFLAGS) -D NONITCNI -c -o {o} {f}\n\n")
+ makefile.write("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -D NONITCNI -c -o {o} {f}\n\n")
ofiles.add(o)
end
+
+ # Add gc_choser.h to aditionnal bodies
+ var gc_chooser = new ExternCFile("{cc_paths.first}/gc_chooser.c", "-DWITH_LIBGC")
+ compiler.extern_bodies.add(gc_chooser)
+
# Compile each required extern body into a specific .o
for f in compiler.extern_bodies do
- var basename = f.basename(".c")
+ var basename = f.filename.basename(".c")
var o = ".nit_compile/{basename}.extern.o"
- makefile.write("{o}: {f}\n\t$(CC) $(CFLAGS) -D NONITCNI -c -o {o} {f}\n\n")
+ makefile.write("{o}: {f.filename}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {f.filename}\n\n")
ofiles.add(o)
end
+
# Link edition
makefile.write("{outname}: {ofiles.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outname} {ofiles.join(" ")} $(LDLIBS)\n\n")
# Clean
self.toolcontext.info("Generated makefile: {makename}", 2)
var time1 = get_time
- self.toolcontext.info("*** END COMPILING TO C: {time1-time0} ***", 2)
+ self.toolcontext.info("*** END WRITING C: {time1-time0} ***", 2)
# Execute the Makefile
abstract class AbstractCompiler
type VISITOR: AbstractCompilerVisitor
- # The main module of the program
- var mainmodule: MModule protected writable
+ # The main module of the program currently compiled
+ # Is assigned during the separate compilation
+ var mainmodule: MModule writable
+
+ # The real main module of the program
+ var realmainmodule: MModule
# The modeulbuilder used to know the model and the AST
var modelbuilder: ModelBuilder protected writable
init(mainmodule: MModule, modelbuilder: ModelBuilder)
do
self.mainmodule = mainmodule
+ self.realmainmodule = mainmodule
self.modelbuilder = modelbuilder
- var file = new_file(mainmodule.name)
- self.header = new CodeWriter(file)
end
# Force the creation of a new file
fun new_visitor: VISITOR is abstract
# Where global declaration are stored (the main .h)
- #
- # FIXME: should not have a global .h since it does not help recompilations
var header: CodeWriter writable
+ # Provide a declaration that can be requested (before or latter) by a visitor
+ fun provide_declaration(key: String, s: String)
+ do
+ if self.provided_declarations.has_key(key) then
+ assert self.provided_declarations[key] == s
+ end
+ self.provided_declarations[key] = s
+ end
+
+ private var provided_declarations = new HashMap[String, String]
+
# Compile C headers
# This method call compile_header_strucs method that has to be refined
fun compile_header do
self.header.add_decl("#include <stdlib.h>")
self.header.add_decl("#include <stdio.h>")
self.header.add_decl("#include <string.h>")
- self.header.add_decl("#ifndef NOBOEHM")
- self.header.add_decl("#include <gc/gc.h>")
- self.header.add_decl("#ifdef NOBOEHM_ATOMIC")
- self.header.add_decl("#undef GC_MALLOC_ATOMIC")
- self.header.add_decl("#define GC_MALLOC_ATOMIC(x) GC_MALLOC(x)")
- self.header.add_decl("#endif /*NOBOEHM_ATOMIC*/")
- self.header.add_decl("#else /*NOBOEHM*/")
- self.header.add_decl("#define GC_MALLOC(x) calloc(1, (x))")
- self.header.add_decl("#define GC_MALLOC_ATOMIC(x) calloc(1, (x))")
- self.header.add_decl("#endif /*NOBOEHM*/")
+ self.header.add_decl("#include <gc_chooser.h>")
compile_header_structs
end
v.add_decl("int main(int argc, char** argv) \{")
v.add("glob_argc = argc; glob_argv = argv;")
+ v.add("initialize_gc_option();")
var main_type = mainmodule.sys_type
if main_type != null then
var mainmodule = v.compiler.mainmodule
v.add("\}")
end
- # look for a needed .h and .c file for a given .nit source-file
- # FIXME: bad API, parameter should be a MModule, not its source-file
- fun add_extern(file: String)
- do
- file = file.strip_extension(".nit")
- var tryfile = file + ".nit.h"
- if tryfile.file_exists then
- self.header.add_decl("#include \"{"..".join_path(tryfile)}\"")
- end
- tryfile = file + "_nit.h"
- if tryfile.file_exists then
- self.header.add_decl("#include \"{"..".join_path(tryfile)}\"")
- end
- tryfile = file + ".nit.c"
- if tryfile.file_exists then
- self.extern_bodies.add(tryfile)
- end
- tryfile = file + "_nit.c"
- if tryfile.file_exists then
- self.extern_bodies.add(tryfile)
- end
- end
-
# List of additional .c files required to compile (native interface)
- var extern_bodies = new ArraySet[String]
+ var extern_bodies = new Array[ExternCFile]
+
+ # This is used to avoid adding an extern file more than once
+ private var seen_extern = new ArraySet[String]
# Generate code that check if an instance is correctly initialized
fun generate_check_init_instance(mtype: MClassType) is abstract
class CodeFile
var name: String
var writers = new Array[CodeWriter]
+ var required_declarations = new HashSet[String]
end
# Where to store generated lines
# (used for local or global declaration)
fun add_decl(s: String) do self.writer.decl_lines.add(s)
+ # Request the presence of a global declaration
+ fun require_declaration(key: String)
+ do
+ self.writer.file.required_declarations.add(key)
+ end
+
+ # Add a declaration in the local-header
+ # The declaration is ensured to be present once
+ fun declare_once(s: String)
+ do
+ self.compiler.provide_declaration(s, s)
+ self.require_declaration(s)
+ end
+
+ # look for a needed .h and .c file for a given .nit source-file
+ # FIXME: bad API, parameter should be a MModule, not its source-file
+ fun add_extern(file: String)
+ do
+ file = file.strip_extension(".nit")
+ var tryfile = file + ".nit.h"
+ if tryfile.file_exists then
+ self.declare_once("#include \"{"..".join_path(tryfile)}\"")
+ end
+ tryfile = file + "_nit.h"
+ if tryfile.file_exists then
+ self.declare_once("#include \"{"..".join_path(tryfile)}\"")
+ end
+
+ if self.compiler.seen_extern.has(file) then return
+ self.compiler.seen_extern.add(file)
+ tryfile = file + ".nit.c"
+ if not tryfile.file_exists then
+ tryfile = file + "_nit.c"
+ if not tryfile.file_exists then return
+ end
+ var f = new ExternCFile(tryfile, "")
+ self.compiler.extern_bodies.add(f)
+ end
+
# Return a new local runtime_variable initialized with the C expression `cexpr'.
fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
do
var returnlabel: nullable String writable = null
end
+# An extern C file to compile
+class ExternCFile
+ # The filename of the file
+ var filename: String
+ # Additionnal specific CC compiler -c flags
+ var cflags: String
+end
+
redef class String
# Mangle a string to be a unique valid C identifier
fun to_cmangle: String
v.ret(v.new_expr("glob_sys", ret.as(not null)))
return
else if pname == "calloc_string" then
- v.ret(v.new_expr("(char*)GC_MALLOC_ATOMIC({arguments[1]})", ret.as(not null)))
+ v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
return
else if pname == "calloc_array" then
v.calloc_array(ret.as(not null), arguments)
v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
return
else if pname == "force_garbage_collection" then
- v.add("GC_gcollect();")
+ v.add("nit_gcollect();")
return
end
v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
externname = nextern.text.substring(1, nextern.text.length-2)
if location.file != null then
var file = location.file.filename
- v.compiler.add_extern(file)
+ v.add_extern(file)
end
var res: nullable RuntimeVariable = null
var ret = mpropdef.msignature.return_mtype
externname = nextern.text.substring(1, nextern.text.length-2)
if location.file != null then
var file = location.file.filename
- v.compiler.add_extern(file)
+ v.add_extern(file)
end
v.adapt_signature(mpropdef, arguments)
var ret = arguments.first.mtype
# Utils
-redef class HashSet[E]
- init from(elements: Collection[E]) do
- init
- self.add_all(elements)
- end
-end
-
redef class Array[E]
- init from(elements: Collection[E]) do
- init
- self.add_all(elements)
- end
-
# Return a new Array with the elements only contened in 'self' and not in 'o'
fun -(o: Array[E]): Array[E] do
var res = new Array[E]
nitlanguage / nit.git / blobdiff