From 5b174285e631cf0f349b623acd1d8e748d17c0f0 Mon Sep 17 00:00:00 2001
From: Iustin Pop <iustin@k1024.org>
Date: Sat, 16 May 2015 15:23:49 +0200
Subject: [PATCH] Switch Python to single script + Makefile tricks

Instead of relying on shebang to call Python correctly, move to a
single script (non-executable) plus Makefile tricks to build the
desired python invocations. This also allows overriding the Python
versions from the command line.
---
 Makefile                      | 14 ++++++++------
 python/{null.py26 => null.py} |  2 +-
 python/null.py26-s            |  5 -----
 python/null.py27              |  5 -----
 python/null.py27-o            |  5 -----
 python/null.py27-s            |  5 -----
 python/null.py32              |  5 -----
 python/null.py32-o            |  5 -----
 python/null.py32-s            |  5 -----
 python/null.pypy              |  5 -----
 python/null.pypy-s            |  5 -----
 11 files changed, 9 insertions(+), 52 deletions(-)
 rename python/{null.py26 => null.py} (51%)
 mode change 100755 => 100644
 delete mode 100755 python/null.py26-s
 delete mode 100755 python/null.py27
 delete mode 100755 python/null.py27-o
 delete mode 100755 python/null.py27-s
 delete mode 100755 python/null.py32
 delete mode 100755 python/null.py32-o
 delete mode 100755 python/null.py32-s
 delete mode 100755 python/null.pypy
 delete mode 100755 python/null.pypy-s

diff --git a/Makefile b/Makefile
index 022c803..8f2378c 100644
--- a/Makefile
+++ b/Makefile
@@ -16,11 +16,7 @@ SCRIPTS = \
 	awk/null.mawk awk/null.gawk \
 	ruby/null.rb18 ruby/null.rb19 \
 	php/null.php php/null.php-n \
-	tcl/null.tcl84 tcl/null.tcl85 tcl/null.tcl86 \
-	python/null.py26 python/null.py26-s \
-	python/null.py27 python/null.py27-s python/null.py27-o \
-	python/null.py32 python/null.py32-s python/null.py32-o \
-	python/null.pypy python/null.pypy-s
+	tcl/null.tcl84 tcl/null.tcl85 tcl/null.tcl86
 
 #METRICS = \
 #	cycles,instructions,branches,branch-misses \
@@ -34,6 +30,11 @@ JAVA_VMS = server zero cacao jamvm
 # see below for how this is called
 JAVA_INVOCS = $(JAVA_VMS:%="java -cp java -% Null")
 
+PYTHON_VERSIONS ?= python2.7 python3.4 pypy
+PYTHON_VARIANTS = "" -O -S
+PYTHON_INVOCS = $(foreach py,$(PYTHON_VERSIONS), \
+	$(foreach opt,$(PYTHON_VARIANTS), "$(py) $(opt) python/null.py"))
+
 EXTRA_RUN = /bin/true
 
 REPS = 100
@@ -94,7 +95,8 @@ java/Null.class: java/Null.java Makefile
 
 log: $(PROGS) $(SCRIPTS) java/Null.class Makefile
 	rm -f log; \
-	for prog in $(PROGS:%=./%) $(SCRIPTS:%=./%) $(EXTRA_RUN) $(JAVA_INVOCS); do \
+	for prog in $(PROGS:%=./%) $(SCRIPTS:%=./%) \
+	  $(EXTRA_RUN) $(JAVA_INVOCS) $(PYTHON_INVOCS); do \
 	  echo $$prog; \
 	  for metric in $(METRICS); do \
 	    LC_ALL=C $(PERF) stat -e "$$metric" -r $(REPS) -o log --append $$prog; \
diff --git a/python/null.py26 b/python/null.py
old mode 100755
new mode 100644
similarity index 51%
rename from python/null.py26
rename to python/null.py
index 9fea3b9..dfb5a79
--- a/python/null.py26
+++ b/python/null.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2.6
+# this is not a shebang
 
 import sys
 
diff --git a/python/null.py26-s b/python/null.py26-s
deleted file mode 100755
index 5987b46..0000000
--- a/python/null.py26-s
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python2.6 -S
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py27 b/python/null.py27
deleted file mode 100755
index f9c8f17..0000000
--- a/python/null.py27
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python2.7
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py27-o b/python/null.py27-o
deleted file mode 100755
index 77548af..0000000
--- a/python/null.py27-o
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python2.7 -O
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py27-s b/python/null.py27-s
deleted file mode 100755
index f30d22d..0000000
--- a/python/null.py27-s
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python2.7 -S
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py32 b/python/null.py32
deleted file mode 100755
index 0c96776..0000000
--- a/python/null.py32
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python3.2
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py32-o b/python/null.py32-o
deleted file mode 100755
index bf38b2f..0000000
--- a/python/null.py32-o
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python3.2 -O
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.py32-s b/python/null.py32-s
deleted file mode 100755
index 19f2647..0000000
--- a/python/null.py32-s
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/python3.2 -S
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.pypy b/python/null.pypy
deleted file mode 100755
index 6f3f52b..0000000
--- a/python/null.pypy
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/pypy
-
-import sys
-
-sys.exit(0)
diff --git a/python/null.pypy-s b/python/null.pypy-s
deleted file mode 100755
index 0e40cb2..0000000
--- a/python/null.pypy-s
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/pypy -S
-
-import sys
-
-sys.exit(0)
-- 
2.39.5