add the trace system with a first test which is instance tracing

[nit.git] / src / compiler / abstract_compiler.nit

diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit
index ea4adde..cff93bd 100644 (file)
--- a/src/compiler/abstract_compiler.nit
+++ b/src/compiler/abstract_compiler.nit
@@ -75,6 +75,8 @@ redef class ToolContext
        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
@@ -87,6 +89,7 @@ redef class ToolContext
                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
        end
@@ -233,6 +236,16 @@ class MakefileToolchain
                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)
@@ -376,6 +389,8 @@ LDFLAGS ?=
 LDLIBS  ?= -lm {{{linker_options.join(" ")}}}
 \n"""
 
+               if self.toolcontext.opt_trace.value then makefile.write "LDLIBS += -llttng-ust -ldl\n"
+
                makefile.write "\n# SPECIAL CONFIGURATION FLAGS\n"
                if platform.supports_libunwind then
                        if toolcontext.opt_no_stacktrace.value then
@@ -706,6 +721,7 @@ abstract class AbstractCompiler
                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>")