Author: hager <sven.ha...@uni-duesseldorf.de>
Branch: ppc-jit-backend
Changeset: r53230:325d681c61c2
Date: 2012-03-05 06:36 -0800
http://bitbucket.org/pypy/pypy/changeset/325d681c61c2/
Log: forgot to add files ...
diff --git a/pypy/jit/backend/ppc/tool/__init__.py
b/pypy/jit/backend/ppc/tool/__init__.py
new file mode 100644
diff --git a/pypy/jit/backend/ppc/tool/viewcode.py
b/pypy/jit/backend/ppc/tool/viewcode.py
new file mode 100644
--- /dev/null
+++ b/pypy/jit/backend/ppc/tool/viewcode.py
@@ -0,0 +1,86 @@
+
+#!/usr/bin/env python
+"""
+Try:
+ ./viewcode.py file.asm
+ ./viewcode.py --decode dumpfile
+"""
+import os, sys, py
+import subprocess
+
+def machine_code_dump(data, originaddr, backend_name, label_list=None):
+ assert backend_name in ["ppc", "ppc_64"]
+ tmpfile = get_tmp_file()
+ objdump = "objdump -EB -D --target=binary --adjust-vma=%(origin)d "
+ objdump += "--architecture=powerpc %(file)s"
+ #
+ f = open(tmpfile, 'wb')
+ f.write(data)
+ f.close()
+ p = subprocess.Popen(objdump % {
+ 'file': tmpfile,
+ 'origin': originaddr,
+ }, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ stdout, stderr = p.communicate()
+ assert not p.returncode, ('Encountered an error running objdump: %s' %
+ stderr)
+ # drop some objdump cruft
+ lines = stdout.splitlines(True)[6:] # drop some objdump cruft
+ return format_code_dump_with_labels(originaddr, lines, label_list)
+
+def format_code_dump_with_labels(originaddr, lines, label_list):
+ from pypy.rlib.rarithmetic import r_uint
+ if not label_list:
+ label_list = []
+ originaddr = r_uint(originaddr)
+ itlines = iter(lines)
+ yield itlines.next() # don't process the first line
+ for lbl_start, lbl_name in label_list:
+ for line in itlines:
+ addr, _ = line.split(':', 1)
+ addr = int(addr, 16)
+ if addr >= originaddr+lbl_start:
+ yield '\n'
+ if lbl_name is None:
+ yield '--end of the loop--\n'
+ else:
+ yield str(lbl_name) + '\n'
+ yield line
+ break
+ yield line
+ # yield all the remaining lines
+ for line in itlines:
+ yield line
+
+def objdump(input):
+ os.system("objdump -EB -D --target=binary --architecture=powerpc %s" %
input)
+
+
+def get_tmp_file():
+ # don't use pypy.tool.udir here to avoid removing old usessions which
+ # might still contain interesting executables
+ udir = py.path.local.make_numbered_dir(prefix='viewcode-', keep=2)
+ tmpfile = str(udir.join('dump.tmp'))
+ return tmpfile
+
+def decode(source):
+ with open(source, 'r') as f:
+ data = f.read().strip()
+ data = data.decode('hex')
+
+ target = get_tmp_file()
+ with open(target, 'wb') as f:
+ f.write(data)
+ return target
+
+
+if __name__ == '__main__':
+ if len(sys.argv) == 2:
+ objdump(sys.argv[1])
+ elif len(sys.argv) == 3:
+ assert sys.argv[1] == '--decode'
+ f = decode(sys.argv[2])
+ objdump(f)
+ else:
+ print >> sys.stderr, __doc__
+ sys.exit(2)
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