From 3c172ea74c92f5162eb71460426a5517ffd5d567 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Tue, 29 Oct 2013 21:48:01 +0100
Subject: [PATCH] build: make systemtap probes work with gyp build

The following now works though the used approach is nothing to write
home about:

  $ ./gyp_uv -Duv_use_dtrace=true
  # <output elided>
  $ make -C out BUILDTYPE=Debug
  # <output elided>
  $ cd out/Debug && stap -L 'process("./run-tests").mark("*")'
  process("./run-tests").mark("tick__start") $arg1:long $arg2:long
  process("./run-tests").mark("tick__stop") $arg1:long $arg2:long
---
 uv.gyp | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/uv.gyp b/uv.gyp
index 74768a09..95095642 100644
--- a/uv.gyp
+++ b/uv.gyp
@@ -268,13 +268,17 @@
         ['library=="shared_library"', {
           'defines': [ 'BUILDING_UV_SHARED=1' ]
         }],
+        # FIXME(bnoordhuis or tjfontaine) Unify this, it's extremely ugly.
         ['uv_use_dtrace=="true"', {
           'defines': [ 'HAVE_DTRACE=1' ],
           'dependencies': [ 'uv_dtrace_header' ],
           'include_dirs': [ '<(SHARED_INTERMEDIATE_DIR)' ],
           'conditions': [
-            ['OS != "mac"', {
-              'sources': ['src/unix/dtrace.c' ],
+            [ 'OS not in "mac linux"', {
+              'sources': [ 'src/unix/dtrace.c' ],
+            }],
+            [ 'OS=="linux"', {
+              'sources': [ '<(SHARED_INTERMEDIATE_DIR)/dtrace.o' ]
             }],
           ],
         }],
@@ -480,11 +484,12 @@
       ],
     },
 
+    # FIXME(bnoordhuis or tjfontaine) Unify this, it's extremely ugly.
     {
       'target_name': 'uv_dtrace_provider',
       'type': 'none',
       'conditions': [
-        [ 'uv_use_dtrace=="true" and OS!="mac"', {
+        [ 'uv_use_dtrace=="true" and OS not in "mac linux"', {
           'actions': [
             {
               'action_name': 'uv_dtrace_o',
@@ -499,7 +504,19 @@
                 '-o', '<@(_outputs)' ]
             }
           ]
-        } ]
+        }],
+        [ 'uv_use_dtrace=="true" and OS=="linux"', {
+          'actions': [
+            {
+              'action_name': 'uv_dtrace_o',
+              'inputs': [ 'src/unix/uv-dtrace.d' ],
+              'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/dtrace.o' ],
+              'action': [
+                'dtrace', '-C', '-G', '-s', '<@(_inputs)', '-o', '<@(_outputs)'
+              ],
+            }
+          ]
+        }],
       ]
     },