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-rw-r--r--src/ninja.cc31
1 files changed, 28 insertions, 3 deletions
diff --git a/src/ninja.cc b/src/ninja.cc
index a55bfc4..3f76e9c 100644
--- a/src/ninja.cc
+++ b/src/ninja.cc
@@ -39,6 +39,7 @@
#include "edit_distance.h"
#include "graph.h"
#include "graphviz.h"
+#include "metrics.h"
#include "parsers.h"
#include "state.h"
#include "util.h"
@@ -85,6 +86,7 @@ void Usage(const BuildConfig& config) {
" -n dry run (don't run commands but pretend they succeeded)\n"
" -v show all command lines while building\n"
"\n"
+" -d MODE enable debugging (use -d list to list modes)\n"
" -t TOOL run a subtool\n"
" use '-t list' to list subtools.\n"
" terminates toplevel options; further flags are passed to the tool.\n",
@@ -517,6 +519,23 @@ int RunTool(const string& tool, Globals* globals, int argc, char** argv) {
return 1;
}
+/// Enable a debugging mode. Returns false if Ninja should exit instead
+/// of continuing.
+bool DebugEnable(const string& name, Globals* globals) {
+ if (name == "list") {
+ printf("debugging modes:\n"
+" stats print operation counts/timing info\n");
+//"multiple modes can be enabled via -d FOO -d BAR\n");
+ return false;
+ } else if (name == "stats") {
+ g_metrics = new Metrics;
+ return true;
+ } else {
+ printf("ninja: unknown debug setting '%s'\n", name.c_str());
+ return false;
+ }
+}
+
int RunBuild(Globals* globals, int argc, char** argv) {
string err;
vector<Node*> targets;
@@ -551,7 +570,6 @@ int RunBuild(Globals* globals, int argc, char** argv) {
return 0;
}
-
} // anonymous namespace
int main(int argc, char** argv) {
@@ -572,9 +590,13 @@ int main(int argc, char** argv) {
int opt;
while (tool.empty() &&
- (opt = getopt_long(argc, argv, "f:hj:k:nt:vC:", kLongOptions,
+ (opt = getopt_long(argc, argv, "d:f:hj:k:nt:vC:", kLongOptions,
NULL)) != -1) {
switch (opt) {
+ case 'd':
+ if (!DebugEnable(optarg, &globals))
+ return 1;
+ break;
case 'f':
input_file = optarg;
break;
@@ -680,5 +702,8 @@ reload:
}
}
- return RunBuild(&globals, argc, argv);
+ int result = RunBuild(&globals, argc, argv);
+ if (g_metrics)
+ g_metrics->Report();
+ return result;
}