3 # Copyright 2011 the V8 project authors. All rights reserved.
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions are
8 # * Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # * Redistributions in binary form must reproduce the above
11 # copyright notice, this list of conditions and the following
12 # disclaimer in the documentation and/or other materials provided
13 # with the distribution.
14 # * Neither the name of Google Inc. nor the names of its
15 # contributors may be used to endorse or promote products derived
16 # from this software without specific prior written permission.
18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 # Avoid using the slow (google-specific) wrapper around objdump.
37 OBJDUMP_BIN = "/usr/bin/objdump"
38 if not os.path.exists(OBJDUMP_BIN):
39 OBJDUMP_BIN = "objdump"
42 _COMMON_DISASM_OPTIONS = ["-M", "intel-mnemonic", "-C"]
44 _DISASM_HEADER_RE = re.compile(r"[a-f0-9]+\s+<.*:$")
45 _DISASM_LINE_RE = re.compile(r"\s*([a-f0-9]+):\s*(\S.*)")
47 # Keys must match constants in Logger::LogCodeInfo.
50 "x64": "-m i386 -M x86-64",
51 "arm": "-m arm", # Not supported by our objdump build.
52 "mips": "-m mips" # Not supported by our objdump build.
56 def GetDisasmLines(filename, offset, size, arch, inplace, arch_flags=""):
59 # Create a temporary file containing a copy of the code.
60 assert arch in _ARCH_MAP, "Unsupported architecture '%s'" % arch
61 arch_flags = arch_flags + " " + _ARCH_MAP[arch]
62 tmp_name = tempfile.mktemp(".v8code")
63 command = "dd if=%s of=%s bs=1 count=%d skip=%d && " \
64 "%s %s -D -b binary %s %s" % (
65 filename, tmp_name, size, offset,
66 OBJDUMP_BIN, ' '.join(_COMMON_DISASM_OPTIONS), arch_flags,
69 command = "%s %s %s --start-address=%d --stop-address=%d -d %s " % (
70 OBJDUMP_BIN, ' '.join(_COMMON_DISASM_OPTIONS), arch_flags,
74 process = subprocess.Popen(command,
76 stdout=subprocess.PIPE,
77 stderr=subprocess.STDOUT)
78 out, err = process.communicate()
79 lines = out.split("\n")
81 for i, line in enumerate(lines):
82 if _DISASM_HEADER_RE.match(line):
88 for line in lines[header_line + 1:]:
89 match = _DISASM_LINE_RE.match(line)
91 line_address = int(match.group(1), 16)
92 split_lines.append((line_address, match.group(2)))