[C++] Add -d flag to make debugging slightly easier
diff --git a/dep.cc b/dep.cc
index 674ac0e..502ec47 100644
--- a/dep.cc
+++ b/dep.cc
@@ -215,6 +215,8 @@
if (r == primary_rule)
continue;
FillDepNodeFromRule(output, r, n);
+ if (n->loc.filename == NULL)
+ n->loc = r->loc;
}
}
};
diff --git a/flags.cc b/flags.cc
index 7a995a5..876e855 100644
--- a/flags.cc
+++ b/flags.cc
@@ -65,6 +65,8 @@
is_dry_run = true;
} else if (!strcmp(arg, "-s")) {
is_silent_mode = true;
+ } else if (!strcmp(arg, "-d")) {
+ enable_debug = true;
} else if (!strcmp(arg, "--kati_stats")) {
enable_stat_logs = true;
} else if (!strcmp(arg, "--warn")) {
diff --git a/flags.h b/flags.h
index 910acbf..a0c6a3b 100644
--- a/flags.h
+++ b/flags.h
@@ -27,6 +27,7 @@
bool detect_android_echo;
bool detect_depfiles;
bool dump_kati_stamp;
+ bool enable_debug;
bool enable_kati_warnings;
bool enable_stat_logs;
bool gen_all_targets;
diff --git a/ninja.cc b/ninja.cc
index 771ddd2..e45abe5 100644
--- a/ninja.cc
+++ b/ninja.cc
@@ -483,6 +483,8 @@
string rule_name = "phony";
bool use_local_pool = false;
+ if (g_flags.enable_debug)
+ *o << "# " << node->loc.filename << ':' << node->loc.lineno << "\n";
if (!commands.empty()) {
rule_name = StringPrintf("rule%d", nn->rule_id);
*o << "rule " << rule_name << "\n";
