zos: support platform

* recognize a zos system
* use correct cp arguments for zos
* add zos compile options
* add zos makedep arguments
* use export file in link step on zos

Author: jBarz

addon.gypi

@@ -89,6 +89,17 @@
           '-Wl,-bimport:<(node_exp_file)'
         ],
       }],
+      [ 'OS=="os390"', {
+        'cflags': [
+          '-q64',
+          '-Wc,DLL',
+          '-qlonglong'
+        ],
+        'ldflags': [
+          '-q64',
+          '<(node_exp_file)'
+        ],
+      }],
       [ 'OS=="win"', {
         'conditions': [
           ['node_engine=="chakracore"', {

gyp/pylib/gyp/common.py

@@ -429,6 +429,8 @@ def GetFlavor(params):
     return 'netbsd'
   if sys.platform.startswith('aix'):
     return 'aix'
+  if sys.platform.startswith('os390'):
+    return 'os390'
 
   return 'linux'
 

gyp/pylib/gyp/generator/make.py

@@ -227,6 +227,25 @@ def CalculateGeneratorInputInfo(params):
 """
 
 
+LINK_COMMANDS_OS390 = """\
+quiet_cmd_alink = AR($(TOOLSET)) $@
+cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
+
+quiet_cmd_alink_thin = AR($(TOOLSET)) $@
+cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
+
+quiet_cmd_link = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS)
+
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS) -Wl,DLL
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS) -Wl,DLL
+
+"""
+
+
 # Header of toplevel Makefile.
 # This should go into the build tree, but it's easier to keep it here for now.
 SHARED_HEADER = ("""\
@@ -310,7 +329,7 @@ def CalculateGeneratorInputInfo(params):
 # We write to a dep file on the side first and then rename at the end
 # so we can't end up with a broken dep file.
 depfile = $(depsdir)/$(call replace_spaces,$@).d
-DEPFLAGS = -MMD -MF $(depfile).raw
+DEPFLAGS = %(makedep_args)s -MF $(depfile).raw
 
 # We have to fixup the deps output in a few ways.
 # (1) the file output should mention the proper .o file.
@@ -2013,6 +2032,7 @@ def CalculateMakefilePath(build_file, base_name):
 
   flock_command= 'flock'
   copy_archive_arguments = '-af'
+  makedep_arguments = '-MMD'
   header_params = {
       'default_target': default_target,
       'builddir': builddir_name,
@@ -2023,6 +2043,7 @@ def CalculateMakefilePath(build_file, base_name):
       'extra_commands': '',
       'srcdir': srcdir,
       'copy_archive_args': copy_archive_arguments,
+      'makedep_args': makedep_arguments,
     }
   if flavor == 'mac':
     flock_command = './gyp-mac-tool flock'
@@ -2036,6 +2057,14 @@ def CalculateMakefilePath(build_file, base_name):
     header_params.update({
         'link_commands': LINK_COMMANDS_ANDROID,
     })
+  elif flavor == 'os390':
+    copy_archive_arguments = '-fPR'
+    makedep_arguments = '-qmakedep=gcc'
+    header_params.update({
+        'copy_archive_args': copy_archive_arguments,
+        'makedep_args': makedep_arguments,
+        'link_commands': LINK_COMMANDS_OS390,
+    })
   elif flavor == 'solaris':
     header_params.update({
         'flock': './gyp-flock-tool flock',

gyp/pylib/gyp/generator/ninja.py

@@ -2250,7 +2250,10 @@ def GenerateOutputForConfig(target_list, target_dicts, data, params,
     master_ninja.rule(
       'copy',
       description='COPY $in $out',
-      command='rm -rf $out && cp -af $in $out')
+      if sys.platform in ('os390'):
+        command='rm -rf $out && cp -fRP $in $out')
+      else:
+        command='rm -rf $out && cp -af $in $out')
   master_ninja.newline()
 
   all_targets = set()

lib/configure.js

@@ -270,6 +270,23 @@ function configure (gyp, argv, callback) {
         return callback(new Error(msg))
       }
     }
+    else if (process.platform === 'os390') {
+      var node_root_dir = findNodeDirectory()
+      var candidates = ['include/node/node.x',
+                        'out/Release/node.x',
+                        'out/Debug/node.x',
+                        'node.x']
+      for (var next = 0; next < candidates.length; next++) {
+         node_exp_file = path.resolve(node_root_dir, candidates[next])
+         try {
+           fs.accessSync(node_exp_file, fs.R_OK)
+           // exp file found, stop looking
+           break
+         } catch (exception) {
+           // this candidate was not found or not readable, do nothing
+         }
+      }
+    }
 
     // this logic ported from the old `gyp_addon` python file
     var gyp_script = path.resolve(__dirname, '..', 'gyp', 'gyp_main.py')
@@ -294,7 +311,7 @@ function configure (gyp, argv, callback) {
       argv.push('-Dlibrary=shared_library')
       argv.push('-Dvisibility=default')
       argv.push('-Dnode_root_dir=' + nodeDir)
-      if (process.platform === 'aix') {
+      if (process.platform === 'aix' || process.platform === 'os390') {
         argv.push('-Dnode_exp_file=' + node_exp_file)
       }
       argv.push('-Dnode_gyp_dir=' + nodeGypDir)