[profiler] Add bin/instruments which launches an app in Instruments.app

.gitignore

@@ -9,6 +9,7 @@ bin/nfd
 bin/ios/deploy
 bin/ios/sim
 bin/osx/sim
+bin/instruments
 
 data/ios
 data/osx

bin/Rakefile

@@ -2,9 +2,10 @@ verbose(true)
 NEED_STRIP = !ENV['DEBUG']
 
 task :default => :all
-task :all => [:files, :deploy, :sim, :nfd]
+task :all => [:files, :deploy, :sim, :nfd, :instruments]
 
 STRIP = "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip"
+CLANG = "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang"
 
 task :files do
   bin = 'ruby'
@@ -16,7 +17,7 @@ task :deploy do
   mkdir_p 'ios'
   bin = 'ios/deploy'
   if !File.exist?(bin) or File.mtime('deploy.m') > File.mtime(bin) or File.mtime('builtin_debugger_cmds.h') > File.mtime(bin)
-    sh "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 deploy.m -o \"#{bin}\" -framework Foundation -I."
+    sh "#{CLANG} -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 deploy.m -o \"#{bin}\" -framework Foundation -I."
     sh "#{STRIP} -x \"#{bin}\"" if NEED_STRIP
   end
 end
@@ -27,7 +28,7 @@ task :sim do
     bin = File.join(template, 'sim')
     if !File.exist?(bin) or File.mtime('sim.m') > File.mtime(bin) or File.mtime('builtin_debugger_cmds.h') > File.mtime(bin)
       define = "-DSIMULATOR_#{template.upcase}"
-      sh "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang #{define} -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 sim.m -o \"#{bin}\" -framework Foundation -framework ApplicationServices -framework AppKit -L. -ledit -Wl,-rpath,/usr/lib -I."
+      sh "#{CLANG} #{define} -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 sim.m -o \"#{bin}\" -framework Foundation -framework ApplicationServices -framework AppKit -L. -ledit -Wl,-rpath,/usr/lib -I."
       sh "#{STRIP} -x \"#{bin}\"" if NEED_STRIP
     end
   end
@@ -36,12 +37,20 @@ end
 task :nfd do
   bin = 'nfd'
   if !File.exist?(bin) or File.mtime('nfd.m') > File.mtime(bin)
-    sh "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 nfd.m -o \"#{bin}\" -framework Foundation -I."
+    sh "#{CLANG} -mmacosx-version-min=10.6 -I./src -std=c99 -Wall -O3 nfd.m -o \"#{bin}\" -framework Foundation -I."
     sh "#{STRIP} -x \"#{bin}\"" if NEED_STRIP
   end
 end
 
+task :instruments do
+  bin = 'instruments'
+  src = bin + '.c'
+  if !File.exist?(bin) or File.mtime(src) > File.mtime(bin)
+    sh "#{CLANG} -mmacosx-version-min=10.6 -std=c99 -Wall -O3 #{src} -o \"#{bin}\" -framework CoreFoundation -framework ApplicationServices"
+  end
+end
+
 
 task :clean do
-  %w{ruby llc ios/deploy ios/sim osx/sim ndf}.each { |path| rm_rf(path) }
+  %w{ruby llc ios/deploy ios/sim osx/sim ndf instruments}.each { |path| rm_rf(path) }
 end

bin/instruments.c

@@ -0,0 +1,98 @@
+// ### Inspect arguments for -[XRXcodeAnalysisService _launch:WithConfigFile:]
+//
+// $ gdb -p [Xcode PID]
+// (gdb) b _launch:WithConfigFile:
+// Breakpoint 1 at 0x1131fad3b
+// (gdb) c
+// Continuing.
+// Breakpoint 1, 0x00000001131fad3b in -[XRXcodeAnalysisService _launch:WithConfigFile:] ()
+// (gdb) po $rdx
+// /Applications/Xcode.app/Contents/Applications/Instruments.app
+// (gdb) po $rcx
+// /var/folders/bz/4w413_r9207ccmg9n_2whlh40000gn/T/pbxperfconfig.plist
+//
+//
+//
+// ### Disassembled pseudo code extracted from IDEInstrumentsService:
+//
+// function methImpl_XRXcodeAnalysisService__launch_WithConfigFile_ {
+//     var_72 = rdi;
+//     var_64 = rsi;
+//     r15 = *objc_retain;
+//     rax = [rdx retain];
+//     r14 = rax;
+//     rax = [rcx retain];
+//     rbx = rax;
+//     rax = CFURLCreateWithFileSystemPath(0x0, r14, 0x0, 0x1);
+//     r15 = rax;
+//     rax = CFURLCreateWithFileSystemPath(0x0, rbx, 0x0, 0x0);
+//     r12 = rax;
+//     [rbx release];
+//     var_56 = r12;
+//     rax = CFArrayCreate(**kCFAllocatorSystemDefault, &var_56, 0x1, *kCFTypeArrayCallBacks);
+//     var_16 = r15;
+//     var_24 = rax;
+//     var_32 = 0x0;
+//     var_44 = 0x0;
+//     var_40 = 0x10001;
+//     rax = LSOpenFromURLSpec(&var_16, 0x0);
+//     if (rax != 0x0) {
+//             _DVTAssertionWarningHandler(&var_72, &var_64, "-[XRXcodeAnalysisService _launch:WithConfigFile:]", "/SourceCache/IDEDebugger/IDEDebugger-3528/PlugIns/Instruments/XRXcodeAnalysisService.m", 0x1ab, @"LSOpenFromURLSpec() returned %ld for trying to launch Instruments at path : %@");
+//     }
+//     if (r15 != 0x0) {
+//             CFRelease(r15);
+//     }
+//     if (var_56 != 0x0) {
+//             CFRelease(rdi);
+//     }
+//     if (rbx != 0x0) {
+//             CFRelease(rbx);
+//     }
+//     rax = [r14 release];
+//     return rax;
+// }
+//
+//
+//
+// ### Observations
+//
+// * iOS Simulator: Instruments.app is responsible for (installing?) launching the built on the simulator.
+// * iOS Device: Xcode installs the built on the device and Instruments.app launches it.
+// * OS X: Nothing much needs to be done, Instruments.app launches the app.
+
+
+#import <CoreFoundation/CoreFoundation.h>
+#import <ApplicationServices/ApplicationServices.h>
+
+int main(int argc, char *argv[])
+{
+  if (argc != 3) {
+    printf("Usage: %s path/to/Instruments.app path/to/pbxperfconfig.plist\n", argv[0]);
+    return -1;
+  }
+
+  char *instrumentsPath = argv[1];
+  char *configPath = argv[2];
+  CFURLRef instrumentsURL = CFURLCreateFromFileSystemRepresentation(NULL, (UInt8 *)instrumentsPath, strlen(instrumentsPath), false);
+  CFURLRef configURL = CFURLCreateFromFileSystemRepresentation(NULL, (UInt8 *)configPath, strlen(configPath), false);
+
+  CFArrayRef itemURLs = CFArrayCreate(NULL, (const void **)&configURL, 1, &kCFTypeArrayCallBacks);
+
+  LSLaunchURLSpec spec;
+  spec.appURL = instrumentsURL;
+  spec.itemURLs = itemURLs;
+  spec.passThruParams = NULL;
+  spec.launchFlags = 0;
+  spec.asyncRefCon = NULL;
+
+  OSStatus status = LSOpenFromURLSpec(&spec, NULL);
+  if (status != 0) {
+    fprintf(stderr, "Unable to launch Instruments: %d\n", status);
+  }
+
+  CFRelease(instrumentsURL);
+  CFRelease(configURL);
+  CFRelease(itemURLs);
+
+  return status;
+}