private import annotation
import mixin
import counter
+import pkgconfig
+private import explain_assert_api
# Add compiling options
redef class ToolContext
var opt_output = new OptionString("Filename of the generated executable", "-o", "--output")
# --dir
var opt_dir = new OptionString("Output directory", "--dir")
+ # --run
+ var opt_run = new OptionBool("Execute the binary after the compilation", "--run")
# --no-cc
var opt_no_cc = new OptionBool("Do not invoke the C compiler", "--no-cc")
# --no-main
var opt_no_main = new OptionBool("Do not generate main entry point", "--no-main")
+ # --shared-lib
+ var opt_shared_lib = new OptionBool("Compile to a native shared library", "--shared-lib")
# --make-flags
var opt_make_flags = new OptionString("Additional options to the `make` command", "--make-flags")
# --max-c-lines
var opt_release = new OptionBool("Compile in release mode and finalize application", "--release")
# -g
var opt_debug = new OptionBool("Compile in debug mode (no C-side optimization)", "-g", "--debug")
+ # --trace
+ var opt_trace = new OptionBool("Compile with lttng's instrumentation", "--trace")
redef init
do
super
- 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_output, self.opt_dir, self.opt_run, self.opt_no_cc, self.opt_no_main, self.opt_shared_lib, 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_no_stacktrace)
self.option_context.add_option(self.opt_release)
self.option_context.add_option(self.opt_max_c_lines, self.opt_group_c_files)
self.option_context.add_option(self.opt_debug)
+ self.option_context.add_option(self.opt_trace)
opt_no_main.hidden = true
+ opt_shared_lib.hidden = true
end
redef fun process_options(args)
var time1 = get_time
self.toolcontext.info("*** END WRITING C: {time1-time0} ***", 2)
+ if not toolcontext.check_errors then return
+
# Execute the Makefile
if self.toolcontext.opt_no_cc.value then return
sys.system("rm -r -- '{root_compile_dir.escape_to_sh}/'")
end
+ if toolcontext.opt_run.value then
+ var mainmodule = compiler.mainmodule
+ var out = outfile(mainmodule)
+ var cmd = ["."/out]
+ cmd.append toolcontext.option_context.rest
+ toolcontext.exec_and_check(cmd, "--run")
+ end
+
time1 = get_time
self.toolcontext.info("*** END COMPILING C: {time1-time0} ***", 2)
end
compiler.files_to_copy.add "{clib}/gc_chooser.c"
compiler.files_to_copy.add "{clib}/gc_chooser.h"
+ # Add lttng traces provider to external bodies
+ if toolcontext.opt_trace.value then
+ #-I. is there in order to make the TRACEPOINT_INCLUDE directive in clib/traces.h refer to the directory in which gcc was invoked.
+ var traces = new ExternCFile("traces.c", "-I.")
+ traces.pkgconfigs.add "lttng-ust"
+ compiler.extern_bodies.add(traces)
+ compiler.files_to_copy.add "{clib}/traces.c"
+ compiler.files_to_copy.add "{clib}/traces.h"
+ end
+
# FFI
for m in compiler.mainmodule.in_importation.greaters do
compiler.finalize_ffi_for_module(m)
end
var debug = toolcontext.opt_debug.value
- makefile.write("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g{ if not debug then " -O2 " else " "}-Wno-unused-value -Wno-switch -Wno-attributes -Wno-trigraphs\nCINCL =\nLDFLAGS ?= \nLDLIBS ?= -lm {linker_options.join(" ")}\n\n")
+ makefile.write """
+ifeq ($(origin CC), default)
+ CC = ccache cc
+endif
+ifeq ($(origin CXX), default)
+ CXX = ccache c++
+endif
+CFLAGS ?= -g {{{if not debug then "-O2" else ""}}} -Wno-unused-value -Wno-switch -Wno-attributes -Wno-trigraphs
+CINCL =
+LDFLAGS ?=
+LDLIBS ?= -lm {{{linker_options.join(" ")}}}
+\n"""
+
+ if self.toolcontext.opt_trace.value then makefile.write "LDLIBS += -llttng-ust -ldl\n"
+
+ if toolcontext.opt_shared_lib.value then
+ makefile.write """
+CFLAGS += -fPIC
+LDFLAGS += -shared -Wl,-soname,{{{outname}}}
+"""
+ end
makefile.write "\n# SPECIAL CONFIGURATION FLAGS\n"
if platform.supports_libunwind then
if toolcontext.opt_no_stacktrace.value then
- makefile.write "NO_STACKTRACE=True"
+ makefile.write "NO_STACKTRACE ?= True"
else
- makefile.write "NO_STACKTRACE= # Set to `True` to enable"
+ makefile.write "NO_STACKTRACE ?= # Set to `True` to enable"
end
end
LDLIBS := $(filter-out -lrt,$(LDLIBS))
endif
+# Special configuration for Windows under mingw64
+ifneq ($(findstring MINGW64,$(uname_S)),)
+ # Use the pcreposix regex library
+ LDLIBS += -lpcreposix
+
+ # Remove POSIX flag -lrt
+ LDLIBS := $(filter-out -lrt,$(LDLIBS))
+
+ # Silence warnings when storing Int, Char and Bool as pointer address
+ CFLAGS += -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast
+endif
+
+# Add the compilation dir to the Java CLASSPATH
+ifeq ($(CLASSPATH),)
+ CLASSPATH := .
+else
+ CLASSPATH := $(CLASSPATH):.
+endif
+
"""
makefile.write("all: {outpath}\n")
f.close
end
- var java_files = new Array[ExternFile]
-
+ # pkg-config annotation support
var pkgconfigs = new Array[String]
for f in compiler.extern_bodies do
pkgconfigs.add_all f.pkgconfigs
end
- # Protect pkg-config
+
+ # Only test if pkg-config is used
if not pkgconfigs.is_empty then
+
+ # Check availability of pkg-config, silence the proc output
+ toolcontext.check_pkgconfig_packages pkgconfigs
+
+ # Double the check in the Makefile in case it's distributed
makefile.write """
# does pkg-config exists?
ifneq ($(shell which pkg-config >/dev/null; echo $$?), 0)
end
# Compile each required extern body into a specific .o
+ var java_files = new Array[ExternFile]
for f in compiler.extern_bodies do
var o = f.makefile_rule_name
- var ff = f.filename.basename
- makefile.write("{o}: {ff}\n")
+ makefile.write("{o}: {f.filename}\n")
makefile.write("\t{f.makefile_rule_content}\n\n")
dep_rules.add(f.makefile_rule_name)
end
makefile.write("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath.escape_to_sh} {ofiles.join(" ")} $(LDLIBS) {pkg}\n\n")
# Clean
- makefile.write("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n")
+ makefile.write("clean:\n\trm -f {ofiles.join(" ")} 2>/dev/null\n")
if outpath != real_outpath then
- makefile.write("\trm -- {outpath.escape_to_sh} 2>/dev/null\n")
+ makefile.write("\trm -f -- {outpath.escape_to_sh} 2>/dev/null\n")
end
makefile.close
self.toolcontext.info("Generated makefile: {makepath}", 2)
self.toolcontext.info(command, 2)
var res
- if self.toolcontext.verbose_level >= 3 or is_windows then
+ if self.toolcontext.verbose_level >= 3 then
res = sys.system("{command} 2>&1")
+ else if is_windows then
+ res = sys.system("{command} 2>&1 >nul")
else
res = sys.system("{command} 2>&1 >/dev/null")
end
stream.write("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
stream.close
- extern_bodies.add(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
+ extern_bodies.add(new ExternCFile("c_functions_hash.c", ""))
end
# Compile C headers
self.header.add_decl("#endif")
self.header.add_decl("#include <inttypes.h>\n")
self.header.add_decl("#include \"gc_chooser.h\"")
+ if modelbuilder.toolcontext.opt_trace.value then self.header.add_decl("#include \"traces.h\"")
self.header.add_decl("#ifdef __APPLE__")
self.header.add_decl(" #include <TargetConditionals.h>")
self.header.add_decl(" #include <syslog.h>")
self.header.add_decl("#ifdef _WIN32")
self.header.add_decl(" #define be32toh(val) _byteswap_ulong(val)")
self.header.add_decl("#endif")
- self.header.add_decl("#ifdef __pnacl__")
- self.header.add_decl(" #define be16toh(val) (((val) >> 8) | ((val) << 8))")
- self.header.add_decl(" #define be32toh(val) ((be16toh((val) << 16) | (be16toh((val) >> 16))))")
- self.header.add_decl("#endif")
self.header.add_decl("#ifdef ANDROID")
self.header.add_decl(" #ifndef be32toh")
self.header.add_decl(" #define be32toh(val) betoh32(val)")
self.header.add_decl """
struct catch_stack_t {
int cursor;
- jmp_buf envs[100];
+ int currentSize;
+ jmp_buf *envs;
};
-extern struct catch_stack_t catchStack;
+extern struct catch_stack_t *getCatchStack();
"""
end
v.add_decl("int glob_argc;")
v.add_decl("char **glob_argv;")
v.add_decl("val *glob_sys;")
- v.add_decl("struct catch_stack_t catchStack;")
+
+ # Store catch stack in thread local storage
+ v.add_decl """
+#if defined(TARGET_OS_IPHONE)
+ // Use pthread_key_create and others for iOS
+ #include <pthread.h>
+
+ static pthread_key_t catch_stack_key;
+ static pthread_once_t catch_stack_key_created = PTHREAD_ONCE_INIT;
+
+ static void create_catch_stack()
+ {
+ pthread_key_create(&catch_stack_key, NULL);
+ }
+
+ struct catch_stack_t *getCatchStack()
+ {
+ pthread_once(&catch_stack_key_created, &create_catch_stack);
+ struct catch_stack_t *data = pthread_getspecific(catch_stack_key);
+ if (data == NULL) {
+ data = malloc(sizeof(struct catch_stack_t));
+ data->cursor = -1;
+ data->currentSize = 0;
+ data->envs = NULL;
+ pthread_setspecific(catch_stack_key, data);
+ }
+ return data;
+ }
+#else
+ // Use __thread when available
+ __thread struct catch_stack_t catchStack = {-1, 0, NULL};
+
+ struct catch_stack_t *getCatchStack()
+ {
+ return &catchStack;
+ }
+#endif
+"""
if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
for tag in count_type_test_tags do
v.add "#endif"
v.add("glob_argc = argc; glob_argv = argv;")
- v.add("catchStack.cursor = -1;")
v.add("initialize_gc_option();")
v.add "initialize_nitni_global_refs();"
mtype = self.anchor(mtype)
var valmtype = value.mcasttype
+ # CPrimitive is the best you can do
+ if valmtype.is_c_primitive then
+ return value
+ end
+
# Do nothing if useless autocast
if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
return value
# Checks
# Can value be null? (according to current knowledge)
- fun maybenull(value: RuntimeVariable): Bool
+ fun maybe_null(value: RuntimeVariable): Bool
do
return value.mcasttype isa MNullableType or value.mcasttype isa MNullType
end
do
if self.compiler.modelbuilder.toolcontext.opt_no_check_null.value then return
- if maybenull(recv) then
+ if maybe_null(recv) then
self.add("if (unlikely({recv} == NULL)) \{")
self.add_abort("Receiver is null")
self.add("\}")
fun int8_instance(value: Int8): RuntimeVariable
do
var t = mmodule.int8_type
- var res = new RuntimeVariable("((int8_t){value.to_s})", t, t)
+ var res = new RuntimeVariable("INT8_C({value.to_s})", t, t)
return res
end
fun int16_instance(value: Int16): RuntimeVariable
do
var t = mmodule.int16_type
- var res = new RuntimeVariable("((int16_t){value.to_s})", t, t)
+ var res = new RuntimeVariable("INT16_C({value.to_s})", t, t)
return res
end
fun uint16_instance(value: UInt16): RuntimeVariable
do
var t = mmodule.uint16_type
- var res = new RuntimeVariable("((uint16_t){value.to_s})", t, t)
+ var res = new RuntimeVariable("UINT16_C({value.to_s})", t, t)
return res
end
fun int32_instance(value: Int32): RuntimeVariable
do
var t = mmodule.int32_type
- var res = new RuntimeVariable("((int32_t){value.to_s})", t, t)
+ var res = new RuntimeVariable("INT32_C({value.to_s})", t, t)
return res
end
fun uint32_instance(value: UInt32): RuntimeVariable
do
var t = mmodule.uint32_type
- var res = new RuntimeVariable("((uint32_t){value.to_s})", t, t)
+ var res = new RuntimeVariable("UINT32_C({value.to_s})", t, t)
return res
end
var nat = new_var(mtype)
var byte_esc = new Buffer.with_cap(len * 4)
for i in [0 .. len[ do
- byte_esc.append("\\x{ns[i].to_s.substring_from(2)}")
+ byte_esc.append("\\x{ns[i].to_hex}")
end
self.add("{nat} = \"{byte_esc}\";")
return nat
# used by aborts, asserts, casts, etc.
fun add_abort(message: String)
do
- self.add("if(catchStack.cursor >= 0)\{")
- self.add("longjmp(catchStack.envs[catchStack.cursor], 1);")
- self.add("\}")
+ add_raw_throw
self.add("PRINT_ERROR(\"Runtime error: %s\", \"{message.escape_to_c}\");")
add_raw_abort
end
+ # Generate a long jump if there is a catch block.
+ #
+ # This method should be called before the error messages and before a `add_raw_abort`.
+ fun add_raw_throw
+ do
+ self.add("\{")
+ self.add("struct catch_stack_t *catchStack = getCatchStack();")
+ self.add("if(catchStack->cursor >= 0)\{")
+ self.add(" longjmp(catchStack->envs[catchStack->cursor], 1);")
+ self.add("\}")
+ self.add("\}")
+ end
+
+ # Generate abort without a message.
+ #
+ # Used when one need a more complex message.
+ # Do not forget to call `add_raw_abort` before the display of a custom user message.
fun add_raw_abort
do
- if self.current_node != null and self.current_node.location.file != null and
- self.current_node.location.file.mmodule != null then
+ var current_node = self.current_node
+ if current_node != null and current_node.location.file != null and
+ current_node.location.file.mmodule != null then
var f = "FILE_{self.current_node.location.file.mmodule.c_name}"
self.require_declaration(f)
self.add("PRINT_ERROR(\" (%s:%d)\\n\", {f}, {current_node.location.line_start});")
do
var res = self.type_test(value, mtype, tag)
self.add("if (unlikely(!{res})) \{")
+ self.add_raw_throw
var cn = self.class_name_string(value)
self.add("PRINT_ERROR(\"Runtime error: Cast failed. Expected `%s`, got `%s`\", \"{mtype.to_s.escape_to_c}\", {cn});")
self.add_raw_abort
var node = modelbuilder.mpropdef2node(self)
if is_abstract then
+ v.add_raw_throw
var cn = v.class_name_string(arguments.first)
v.current_node = node
v.add("PRINT_ERROR(\"Runtime error: Abstract method `%s` called on `%s`\", \"{mproperty.name.escape_to_c}\", {cn});")
end
# We have a problem
+ v.add_raw_throw
var cn = v.class_name_string(arguments.first)
v.add("PRINT_ERROR(\"Runtime error: uncompiled method `%s` called on `%s`. NOT YET IMPLEMENTED\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
v.add_raw_abort
v.ret(v.new_expr("(char*){alloc}", ret.as(not null)))
return true
else if pname == "fetch_4_chars" then
- v.ret(v.new_expr("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret.as(not null)))
+ v.ret(v.new_expr("*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret.as(not null)))
return true
else if pname == "fetch_4_hchars" then
- v.ret(v.new_expr("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret.as(not null)))
+ v.ret(v.new_expr("(uint32_t)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret.as(not null)))
return true
end
else if cname == "NativeArray" then
end
end
if pname == "exit" then
- v.add("exit({arguments[1]});")
+ v.add("exit((int){arguments[1]});")
return true
else if pname == "sys" then
v.ret(v.new_expr("glob_sys", ret.as(not null)))
assert arguments.length == 2
var recv = arguments.first
var arg = arguments[1]
- if is_optional and v.maybenull(arg) then
+ if is_optional and v.maybe_null(arg) then
var value = v.new_var(self.mpropdef.static_mtype.as(not null))
v.add("if ({arg} == NULL) \{")
v.assign(value, evaluate_expr(v, recv))
redef fun stmt(v)
do
if self.n_catch != null then
- v.add("catchStack.cursor += 1;")
- v.add("if(!setjmp(catchStack.envs[catchStack.cursor]))\{")
+ v.add("\{")
+ v.add("struct catch_stack_t *catchStack = getCatchStack();")
+ v.add("if(catchStack->currentSize == 0) \{")
+ v.add(" catchStack->cursor = -1;")
+ v.add(" catchStack->currentSize = 100;")
+ v.add(" catchStack->envs = malloc(sizeof(jmp_buf)*100);")
+ v.add("\} else if(catchStack->cursor == catchStack->currentSize - 1) \{")
+ v.add(" catchStack->currentSize *= 2;")
+ v.add(" catchStack->envs = realloc(catchStack->envs, sizeof(jmp_buf)*catchStack->currentSize);")
+ v.add("\}")
+ v.add("catchStack->cursor += 1;")
+ v.add("if(!setjmp(catchStack->envs[catchStack->cursor]))\{")
v.stmt(self.n_block)
- v.add("catchStack.cursor -= 1;")
+ v.add("catchStack->cursor -= 1;")
v.add("\}else \{")
- v.add("catchStack.cursor -= 1;")
+ v.add("catchStack->cursor -= 1;")
v.stmt(self.n_catch)
v.add("\}")
+ v.add("\}")
else
v.stmt(self.n_block)
end
var cond = v.expr_bool(self.n_expr)
v.add("if (unlikely(!{cond})) \{")
v.stmt(self.n_else)
+
+ explain_assert v
+
var nid = self.n_id
if nid != null then
v.add_abort("Assert '{nid.text}' failed")
end
v.add("\}")
end
+
+ # Explain assert if it fails
+ private fun explain_assert(v: AbstractCompilerVisitor)
+ do
+ var explain_assert_str = explain_assert_str
+ if explain_assert_str == null then return
+
+ var nas = v.compiler.modelbuilder.model.get_mclasses_by_name("NativeArray")
+ if nas == null then return
+
+ nas = v.compiler.modelbuilder.model.get_mclasses_by_name("Array")
+ if nas == null or nas.is_empty then return
+
+ var expr = explain_assert_str.expr(v)
+ if expr == null then return
+
+ var cstr = v.send(v.get_property("to_cstring", expr.mtype), [expr])
+ if cstr == null then return
+
+ v.add "PRINT_ERROR(\"Runtime assert: %s\\n\", {cstr});"
+ end
end
redef class AOrExpr
var res = v.new_var(self.mtype.as(not null))
var i1 = v.expr(self.n_expr, null)
- if not v.maybenull(i1) then return i1
+ if not v.maybe_null(i1) then return i1
v.add("if ({i1}!=NULL) \{")
v.assign(res, i1)
redef class ACharExpr
redef fun expr(v) do
- if is_ascii then return v.byte_instance(value.as(not null).ascii)
- if is_code_point then return v.int_instance(value.as(not null).code_point)
+ if is_code_point then
+ return v.int_instance(value.as(not null).code_point)
+ end
return v.char_instance(self.value.as(not null))
end
end
var i = v.expr(self.n_expr, null)
if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
- if not v.maybenull(i) then return i
+ if not v.maybe_null(i) then return i
v.add("if (unlikely({i} == NULL)) \{")
v.add_abort("Cast failed")
redef fun expr(v)
do
var recv = v.expr(self.n_expr, null)
+ if is_safe then
+ v.add "if ({recv}!=NULL) \{"
+ end
var callsite = self.callsite.as(not null)
if callsite.is_broken then return null
var args = v.varargize(callsite.mpropdef, callsite.signaturemap, recv, self.raw_arguments)
- return v.compile_callsite(callsite, args)
+ var res = v.compile_callsite(callsite, args)
+ if is_safe then
+ if res != null then
+ var orig_res = res
+ res = v.new_var(self.mtype.as(not null))
+ v.add("{res} = {orig_res};")
+ v.add("\} else \{")
+ v.add("{res} = NULL;")
+ end
+ v.add("\}")
+ end
+ return res
end
end
end
end
+redef class ASafeExpr
+ redef fun expr(v)
+ do
+ return v.expr(self.n_expr, null)
+ end
+end
+
redef class ANamedargExpr
redef fun expr(v)
do
var modelbuilder = new ModelBuilder(model, toolcontext)
var arguments = toolcontext.option_context.rest
+if toolcontext.opt_run.value then
+ # When --run, only the first is the program, the rest is the run arguments
+ arguments = [toolcontext.option_context.rest.shift]
+end
if arguments.length > 1 and toolcontext.opt_output.value != null then
print "Option Error: --output needs a single source file. Do you prefer --dir?"
exit 1