Add perfparser as a submodule

Task-number: QTCREATORBUG-21348
Change-Id: I2f7e4aa97e554d7042db05c952c46ed7ac199dbe
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

.gitmodules

@@ -2,3 +2,7 @@
 	path = src/shared/qbs
 	url = ../../qbs/qbs.git
 	ignore = dirty
+[submodule "perfparser"]
+	path = src/tools/perfparser
+	url = ../perfparser.git
+	ignore = dirty

src/tools/tools.pro

@@ -49,3 +49,32 @@ isEmpty(BUILD_CPLUSPLUS_TOOLS):BUILD_CPLUSPLUS_TOOLS=$$(BUILD_CPLUSPLUS_TOOLS)
         }
     }
 }
+
+exists(perfparser/perfparser.pro) {
+    win32 {
+        SUBDIRS += perfparser
+        PERFPARSER_APP_DESTDIR = $$IDE_BUILD_TREE/bin
+        PERFPARSER_APP_INSTALLDIR = $$QTC_PREFIX/bin
+
+        # On windows we take advantage of the fixed path in eblopenbackend.c: "..\lib\elfutils\"
+        PERFPARSER_ELFUTILS_INSTALLDIR = $$QTC_PREFIX/bin
+        PERFPARSER_ELFUTILS_BACKENDS_INSTALLDIR = $$QTC_PREFIX/lib/elfutils
+    } else {
+        SUBDIRS += perfparser
+        PERFPARSER_APP_DESTDIR = $$IDE_BUILD_TREE/libexec/qtcreator
+        PERFPARSER_APP_INSTALLDIR = $$QTC_PREFIX/libexec/qtcreator
+
+        # On linux we have "$ORIGIN/../$LIB/elfutils" in eblopenbackend.c. Unfortunately $LIB can
+        # be many different things, so we target the second try where it just loads the plain file
+        # name. This also allows us to put libdw and libelf in a subdir of lib.
+        PERFPARSER_ELFUTILS_INSTALLDIR = $$QTC_PREFIX/lib/elfutils
+        PERFPARSER_ELFUTILS_BACKENDS_INSTALLDIR = $$QTC_PREFIX/lib/elfutils
+    }
+
+    cache(PERFPARSER_APP_DESTDIR)
+    cache(PERFPARSER_APP_INSTALLDIR)
+    cache(PERFPARSER_ELFUTILS_INSTALLDIR)
+    cache(PERFPARSER_ELFUTILS_BACKENDS_INSTALLDIR)
+}
+
+OTHER_FILES += tools.qbs

src/tools/tools.qbs

@@ -17,4 +17,12 @@ Project {
         "iostool/iostool.qbs",
         "winrtdebughelper/winrtdebughelper.qbs"
     ].concat(project.additionalTools)
+
+    Project {
+        name: "PerfParser Tool"
+        references: [
+            "perfparser/perfparser.qbs"
+        ]
+        condition: File.exists(project.ide_source_tree + "/src/tools/perfparser/perfparser.qbs")
+    }
 }