X-Git-Url: http://nitlanguage.org diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit index 259c597..9601c1d 100644 --- a/src/compiler/abstract_compiler.nit +++ b/src/compiler/abstract_compiler.nit @@ -63,8 +63,8 @@ redef class ToolContext var opt_invocation_metrics = new OptionBool("Enable static and dynamic count of all method invocations", "--invocation-metrics") # --isset-checks-metrics var opt_isset_checks_metrics = new OptionBool("Enable static and dynamic count of isset checks before attributes access", "--isset-checks-metrics") - # --stacktrace - var opt_stacktrace = new OptionString("Control the generation of stack traces", "--stacktrace") + # --no-stacktrace + var opt_no_stacktrace = new OptionBool("Disable the generation of stack traces", "--no-stacktrace") # --no-gcc-directives var opt_no_gcc_directive = new OptionArray("Disable a advanced gcc directives for optimization", "--no-gcc-directive") # --release @@ -76,7 +76,7 @@ redef class ToolContext self.option_context.add_option(self.opt_output, self.opt_dir, self.opt_no_cc, self.opt_no_main, self.opt_make_flags, self.opt_compile_dir, self.opt_hardening) self.option_context.add_option(self.opt_no_check_covariance, self.opt_no_check_attr_isset, self.opt_no_check_assert, self.opt_no_check_autocast, self.opt_no_check_null, self.opt_no_check_all) self.option_context.add_option(self.opt_typing_test_metrics, self.opt_invocation_metrics, self.opt_isset_checks_metrics) - self.option_context.add_option(self.opt_stacktrace) + self.option_context.add_option(self.opt_no_stacktrace) self.option_context.add_option(self.opt_no_gcc_directive) self.option_context.add_option(self.opt_release) self.option_context.add_option(self.opt_max_c_lines, self.opt_group_c_files) @@ -88,17 +88,6 @@ redef class ToolContext do super - var st = opt_stacktrace.value - if st == "none" or st == "libunwind" or st == "nitstack" then - # Fine, do nothing - else if st == "auto" or st == null then - # Default is nitstack - opt_stacktrace.value = "nitstack" - else - print "Option Error: unknown value `{st}` for --stacktrace. Use `none`, `libunwind`, `nitstack` or `auto`." - exit(1) - end - if opt_output.value != null and opt_dir.value != null then print "Option Error: cannot use both --dir and --output" exit(1) @@ -115,15 +104,12 @@ redef class ToolContext end redef class ModelBuilder - # The compilation directory - var compile_dir: String - # Simple indirection to `Toolchain::write_and_make` protected fun write_and_make(compiler: AbstractCompiler) do var platform = compiler.target_platform var toolchain = platform.toolchain(toolcontext, compiler) - compile_dir = toolchain.compile_dir + compiler.toolchain = toolchain toolchain.write_and_make end end @@ -145,14 +131,21 @@ class Toolchain # Compiler of the target program var compiler: AbstractCompiler - # Directory where to generate all C files - fun compile_dir: String + # Directory where to generate all files + # + # The option `--compile_dir` change this directory. + fun root_compile_dir: String do var compile_dir = toolcontext.opt_compile_dir.value - if compile_dir == null then compile_dir = ".nit_compile" + if compile_dir == null then compile_dir = "nit_compile" return compile_dir end + # Directory where to generate all C files + # + # By default it is `root_compile_dir` but some platform may require that it is a subdirectory. + fun compile_dir: String do return root_compile_dir + # Write all C files and compile them fun write_and_make is abstract end @@ -165,12 +158,16 @@ class MakefileToolchain do var compile_dir = compile_dir + # Remove the compilation directory unless explicitly set + var auto_remove = toolcontext.opt_compile_dir.value == null + # Generate the .h and .c files # 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) + root_compile_dir.mkdir compile_dir.mkdir var cfiles = new Array[String] @@ -192,6 +189,10 @@ class MakefileToolchain compile_c_code(compile_dir) + if auto_remove then + sys.system("rm -r -- '{root_compile_dir.escape_to_sh}/'") + end + time1 = get_time self.toolcontext.info("*** END COMPILING C: {time1-time0} ***", 2) end @@ -200,7 +201,7 @@ class MakefileToolchain fun write_files(compile_dir: String, cfiles: Array[String]) do var platform = compiler.target_platform - if self.toolcontext.opt_stacktrace.value == "nitstack" and platform.supports_libunwind then compiler.build_c_to_nit_bindings + if platform.supports_libunwind then compiler.build_c_to_nit_bindings var cc_opt_with_libgc = "-DWITH_LIBGC" if not platform.supports_libgc then cc_opt_with_libgc = "" @@ -327,7 +328,7 @@ class MakefileToolchain var outpath = real_outpath.escape_to_mk if outpath != real_outpath then # If the name is crazy and need escaping, we will do an indirection - # 1. generate the binary in the .nit_compile dir under an escaped name + # 1. generate the binary in the nit_compile dir under an escaped name # 2. copy the binary at the right place in the `all` goal. outpath = mainmodule.c_name end @@ -343,25 +344,50 @@ class MakefileToolchain makefile.write("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g -O2 -Wno-unused-value -Wno-switch -Wno-attributes\nCINCL =\nLDFLAGS ?= \nLDLIBS ?= -lm {linker_options.join(" ")}\n\n") - var ost = toolcontext.opt_stacktrace.value - if (ost == "libunwind" or ost == "nitstack") and platform.supports_libunwind then makefile.write("NEED_LIBUNWIND := YesPlease\n") + makefile.write "\n# SPECIAL CONFIGURATION FLAGS\n" + if platform.supports_libunwind then + if toolcontext.opt_no_stacktrace.value then + makefile.write "NO_STACKTRACE=True" + else + makefile.write "NO_STACKTRACE= # Set to `True` to enable" + end + end # Dynamic adaptations # While `platform` enable complex toolchains, they are statically applied # For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself + makefile.write "\n\n" # Check and adapt the targeted system makefile.write("uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')\n") - makefile.write("ifeq ($(uname_S),Darwin)\n") - # remove -lunwind since it is already included on macosx - makefile.write("\tNEED_LIBUNWIND :=\n") - makefile.write("endif\n\n") # Check and adapt for the compiler used # clang need an additionnal `-Qunused-arguments` makefile.write("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n") - makefile.write("ifdef NEED_LIBUNWIND\n\tLDLIBS += -lunwind\nendif\n") + if platform.supports_libunwind then + makefile.write """ +ifneq ($(NO_STACKTRACE), True) + # Check and include lib-unwind in a portable way + ifneq ($(uname_S),Darwin) + # already included on macosx, but need to get the correct flags in other supported platforms. + ifeq ($(shell pkg-config --exists 'libunwind'; echo $$?), 0) + LDLIBS += `pkg-config --libs libunwind` + CFLAGS += `pkg-config --cflags libunwind` + else + $(warning "[_] stack-traces disabled. Please install libunwind-dev.") + CFLAGS += -D NO_STACKTRACE + endif + endif +else + # Stacktraces disabled + CFLAGS += -D NO_STACKTRACE +endif + +""" + else + makefile.write("CFLAGS += -D NO_STACKTRACE\n\n") + end makefile.write("all: {outpath}\n") if outpath != real_outpath then @@ -496,6 +522,11 @@ abstract class AbstractCompiler # The modelbuilder used to know the model and the AST var modelbuilder: ModelBuilder is protected writable + # The associated toolchain + # + # Set by `modelbuilder.write_and_make` and permit sub-routines to access the current toolchain if required. + var toolchain: Toolchain is noinit + # Is hardening asked? (see --hardening) fun hardening: Bool do return self.modelbuilder.toolcontext.opt_hardening.value @@ -559,7 +590,7 @@ abstract class AbstractCompiler # Binds the generated C function names to Nit function names fun build_c_to_nit_bindings do - var compile_dir = modelbuilder.compile_dir + var compile_dir = toolchain.compile_dir var stream = new FileWriter.open("{compile_dir}/c_functions_hash.c") stream.write("#include \n") @@ -606,6 +637,7 @@ abstract class AbstractCompiler self.header.add_decl("#include ") self.header.add_decl("#include \n") self.header.add_decl("#include \n") + self.header.add_decl("#include \n") self.header.add_decl("#include \"gc_chooser.h\"") self.header.add_decl("#ifdef ANDROID") self.header.add_decl(" #include ") @@ -713,19 +745,16 @@ extern void nitni_global_ref_decr( struct nitni_ref *ref ); do var v = self.new_visitor v.add_decl("#include ") - var ost = modelbuilder.toolcontext.opt_stacktrace.value var platform = target_platform - if not platform.supports_libunwind then ost = "none" - var no_main = platform.no_main or modelbuilder.toolcontext.opt_no_main.value - if ost == "nitstack" or ost == "libunwind" then + if platform.supports_libunwind then + v.add_decl("#ifndef NO_STACKTRACE") v.add_decl("#define UNW_LOCAL_ONLY") v.add_decl("#include ") - if ost == "nitstack" then - v.add_decl("#include \"c_functions_hash.h\"") - end + v.add_decl("#include \"c_functions_hash.h\"") + v.add_decl("#endif") end v.add_decl("int glob_argc;") v.add_decl("char **glob_argv;") @@ -759,7 +788,8 @@ extern void nitni_global_ref_decr( struct nitni_ref *ref ); end v.add_decl("static void show_backtrace(void) \{") - if ost == "nitstack" or ost == "libunwind" then + if platform.supports_libunwind then + v.add_decl("#ifndef NO_STACKTRACE") v.add_decl("char* opt = getenv(\"NIT_NO_STACK\");") v.add_decl("unw_cursor_t cursor;") v.add_decl("if(opt==NULL)\{") @@ -773,20 +803,17 @@ extern void nitni_global_ref_decr( struct nitni_ref *ref ); v.add_decl("PRINT_ERROR(\"-------------------------------------------------\\n\");") v.add_decl("while (unw_step(&cursor) > 0) \{") v.add_decl(" unw_get_proc_name(&cursor, procname, 100, &ip);") - if ost == "nitstack" then v.add_decl(" const char* recv = get_nit_name(procname, strlen(procname));") v.add_decl(" if (recv != NULL)\{") v.add_decl(" PRINT_ERROR(\"` %s\\n\", recv);") v.add_decl(" \}else\{") v.add_decl(" PRINT_ERROR(\"` %s\\n\", procname);") v.add_decl(" \}") - else - v.add_decl(" PRINT_ERROR(\"` %s \\n\",procname);") - end v.add_decl("\}") v.add_decl("PRINT_ERROR(\"-------------------------------------------------\\n\");") v.add_decl("free(procname);") v.add_decl("\}") + v.add_decl("#endif /* NO_STACKTRACE */") end v.add_decl("\}") @@ -815,7 +842,7 @@ extern void nitni_global_ref_decr( struct nitni_ref *ref ); v.add("signal(SIGINT, sig_handler);") v.add("signal(SIGTERM, sig_handler);") v.add("signal(SIGSEGV, sig_handler);") - v.add("signal(SIGPIPE, sig_handler);") + v.add("signal(SIGPIPE, SIG_IGN);") v.add("glob_argc = argc; glob_argv = argv;") v.add("initialize_gc_option();") @@ -1645,8 +1672,9 @@ abstract class AbstractCompilerVisitor if nexpr == null then return if nexpr.mtype == null and not nexpr.is_typed then # Untyped expression. - # Might mean dead code - # So just return + # Might mean dead code or invalid code + # so aborts + add_abort("FATAL: bad statement executed.") return end @@ -1668,16 +1696,27 @@ abstract class AbstractCompilerVisitor # `mtype` is the expected return type, pass null if no specific type is expected. fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable do - if nexpr.mtype == null then + var old = self.current_node + self.current_node = nexpr + + var res = null + if nexpr.mtype != null then + res = nexpr.expr(self) + end + + if res == null then # Untyped expression. - # Might mean dead code - # so return a placebo result + # Might mean dead code or invalid code. + # so aborts + add_abort("FATAL: bad expression executed.") + # and return a placebo result to please the C compiler if mtype == null then mtype = compiler.mainmodule.object_type - return new_var(mtype) + res = new_var(mtype) + + self.current_node = old + return res end - var old = self.current_node - self.current_node = nexpr - var res = nexpr.expr(self).as(not null) + if mtype != null then mtype = self.anchor(mtype) res = self.autobox(res, mtype) @@ -1843,7 +1882,7 @@ redef class MClassType else if mclass.name == "Bool" then return "short int" else if mclass.name == "Char" then - return "char" + return "uint32_t" else if mclass.name == "Float" then return "double" else if mclass.name == "Byte" then @@ -2114,12 +2153,12 @@ redef class AMethPropdef v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null))) return true else if pname == "ascii" then - v.ret(v.new_expr("{arguments[0]}", ret.as(not null))) + v.ret(v.new_expr("(uint32_t){arguments[0]}", ret.as(not null))) return true end else if cname == "Char" then if pname == "output" then - v.add("printf(\"%c\", {arguments.first});") + v.add("printf(\"%c\", ((unsigned char){arguments.first}));") return true else if pname == "object_id" then v.ret(v.new_expr("(long){arguments.first}", ret.as(not null))) @@ -2153,7 +2192,7 @@ redef class AMethPropdef v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null))) return true else if pname == "ascii" then - v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null))) + v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null))) return true end else if cname == "Byte" then @@ -2293,10 +2332,10 @@ redef class AMethPropdef end else if cname == "NativeString" then if pname == "[]" then - v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null))) + v.ret(v.new_expr("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret.as(not null))) return true else if pname == "[]=" then - v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};") + v.add("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};") return true else if pname == "copy_to" then v.add("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});") @@ -2427,7 +2466,7 @@ redef class AAttrPropdef var res if is_lazy then var set - var ret = self.mpropdef.static_mtype + var ret = self.mtype var useiset = not ret.is_c_primitive and not ret isa MNullableType var guard = self.mlazypropdef.mproperty if useiset then @@ -2455,7 +2494,7 @@ redef class AAttrPropdef assert arguments.length == 2 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1]) if is_lazy then - var ret = self.mpropdef.static_mtype + var ret = self.mtype var useiset = not ret.is_c_primitive and not ret isa MNullableType if not useiset then v.write_attribute(self.mlazypropdef.mproperty, arguments.first, v.bool_instance(true)) @@ -2477,11 +2516,11 @@ redef class AAttrPropdef var oldnode = v.current_node v.current_node = self var old_frame = v.frame - var frame = new StaticFrame(v, self.mpropdef.as(not null), recv.mcasttype.undecorate.as(MClassType), [recv]) + var frame = new StaticFrame(v, self.mreadpropdef.as(not null), recv.mcasttype.undecorate.as(MClassType), [recv]) v.frame = frame var value - var mtype = self.mpropdef.static_mtype + var mtype = self.mtype assert mtype != null var nexpr = self.n_expr @@ -2866,6 +2905,10 @@ redef class AIntExpr redef fun expr(v) do return v.int_instance(self.value.as(not null)) end +redef class AByteExpr + redef fun expr(v) do return v.byte_instance(self.value.as(not null)) +end + redef class AFloatExpr redef fun expr(v) do return v.float_instance("{self.n_float.text}") # FIXME use value, not n_float end @@ -3001,7 +3044,9 @@ redef class AIsaExpr redef fun expr(v) do var i = v.expr(self.n_expr, null) - return v.type_test(i, self.cast_type.as(not null), "isa") + var cast_type = self.cast_type + if cast_type == null then return null # no-no on broken node + return v.type_test(i, cast_type, "isa") end end