# Copyright (c) 2016 Google, Inc
#
-from __future__ import print_function
-
-import command
import glob
import os
import shutil
+import struct
import sys
import tempfile
-import tout
+from patman import command
+from patman import tout
# Output directly (generally this is temporary)
outdir = None
"""Tidy up: delete output directory if temporary and not preserved."""
if outdir and not preserve_outdir:
_RemoveOutputDir()
+ outdir = None
def GetOutputFilename(fname):
"""Return a filename within the output directory.
if outdir:
_RemoveOutputDir()
+ outdir = None
def SetInputDirs(dirname):
"""Add a list of input directories, where input files are kept.
indir = dirname
tout.Debug("Using input directories %s" % indir)
-def GetInputFilename(fname):
+def GetInputFilename(fname, allow_missing=False):
"""Return a filename for use as input.
Args:
fname: Filename to use for new file
+ allow_missing: True if the filename can be missing
Returns:
- The full path of the filename, within the input directory
+ The full path of the filename, within the input directory, or
+ None on error
"""
- if not indir:
+ if not indir or fname[:1] == '/':
return fname
for dirname in indir:
pathname = os.path.join(dirname, fname)
if os.path.exists(pathname):
return pathname
+ if allow_missing:
+ return None
raise ValueError("Filename '%s' not found in input path (%s) (cwd='%s')" %
(fname, ','.join(indir), os.getcwd()))
return True
return False
+def GetHostCompileTool(name):
+ """Get the host-specific version for a compile tool
+
+ This checks the environment variables that specify which version of
+ the tool should be used (e.g. ${HOSTCC}).
+
+ The following table lists the host-specific versions of the tools
+ this function resolves to:
+
+ Compile Tool | Host version
+ --------------+----------------
+ as | ${HOSTAS}
+ ld | ${HOSTLD}
+ cc | ${HOSTCC}
+ cpp | ${HOSTCPP}
+ c++ | ${HOSTCXX}
+ ar | ${HOSTAR}
+ nm | ${HOSTNM}
+ ldr | ${HOSTLDR}
+ strip | ${HOSTSTRIP}
+ objcopy | ${HOSTOBJCOPY}
+ objdump | ${HOSTOBJDUMP}
+ dtc | ${HOSTDTC}
+
+ Args:
+ name: Command name to run
+
+ Returns:
+ host_name: Exact command name to run instead
+ extra_args: List of extra arguments to pass
+ """
+ host_name = None
+ extra_args = []
+ if name in ('as', 'ld', 'cc', 'cpp', 'ar', 'nm', 'ldr', 'strip',
+ 'objcopy', 'objdump', 'dtc'):
+ host_name, *host_args = env.get('HOST' + name.upper(), '').split(' ')
+ elif name == 'c++':
+ host_name, *host_args = env.get('HOSTCXX', '').split(' ')
+
+ if host_name:
+ return host_name, extra_args
+ return name, []
+
+def GetTargetCompileTool(name, cross_compile=None):
+ """Get the target-specific version for a compile tool
+
+ This first checks the environment variables that specify which
+ version of the tool should be used (e.g. ${CC}). If those aren't
+ specified, it checks the CROSS_COMPILE variable as a prefix for the
+ tool with some substitutions (e.g. "${CROSS_COMPILE}gcc" for cc).
+
+ The following table lists the target-specific versions of the tools
+ this function resolves to:
+
+ Compile Tool | First choice | Second choice
+ --------------+----------------+----------------------------
+ as | ${AS} | ${CROSS_COMPILE}as
+ ld | ${LD} | ${CROSS_COMPILE}ld.bfd
+ | | or ${CROSS_COMPILE}ld
+ cc | ${CC} | ${CROSS_COMPILE}gcc
+ cpp | ${CPP} | ${CROSS_COMPILE}gcc -E
+ c++ | ${CXX} | ${CROSS_COMPILE}g++
+ ar | ${AR} | ${CROSS_COMPILE}ar
+ nm | ${NM} | ${CROSS_COMPILE}nm
+ ldr | ${LDR} | ${CROSS_COMPILE}ldr
+ strip | ${STRIP} | ${CROSS_COMPILE}strip
+ objcopy | ${OBJCOPY} | ${CROSS_COMPILE}objcopy
+ objdump | ${OBJDUMP} | ${CROSS_COMPILE}objdump
+ dtc | ${DTC} | (no CROSS_COMPILE version)
+
+ Args:
+ name: Command name to run
+
+ Returns:
+ target_name: Exact command name to run instead
+ extra_args: List of extra arguments to pass
+ """
+ env = dict(os.environ)
+
+ target_name = None
+ extra_args = []
+ if name in ('as', 'ld', 'cc', 'cpp', 'ar', 'nm', 'ldr', 'strip',
+ 'objcopy', 'objdump', 'dtc'):
+ target_name, *extra_args = env.get(name.upper(), '').split(' ')
+ elif name == 'c++':
+ target_name, *extra_args = env.get('CXX', '').split(' ')
+
+ if target_name:
+ return target_name, extra_args
+
+ if cross_compile is None:
+ cross_compile = env.get('CROSS_COMPILE', '')
+ if not cross_compile:
+ return name, []
+
+ if name in ('as', 'ar', 'nm', 'ldr', 'strip', 'objcopy', 'objdump'):
+ target_name = cross_compile + name
+ elif name == 'ld':
+ try:
+ if Run(cross_compile + 'ld.bfd', '-v'):
+ target_name = cross_compile + 'ld.bfd'
+ except:
+ target_name = cross_compile + 'ld'
+ elif name == 'cc':
+ target_name = cross_compile + 'gcc'
+ elif name == 'cpp':
+ target_name = cross_compile + 'gcc'
+ extra_args = ['-E']
+ elif name == 'c++':
+ target_name = cross_compile + 'g++'
+ else:
+ target_name = name
+ return target_name, extra_args
+
def Run(name, *args, **kwargs):
"""Run a tool with some arguments
Args:
name: Command name to run
args: Arguments to the tool
- kwargs: Options to pass to command.run()
+ for_host: True to resolve the command to the version for the host
+ for_target: False to run the command as-is, without resolving it
+ to the version for the compile target
Returns:
CommandResult object
"""
try:
+ binary = kwargs.get('binary')
+ for_host = kwargs.get('for_host', False)
+ for_target = kwargs.get('for_target', not for_host)
env = None
if tool_search_paths:
env = dict(os.environ)
env['PATH'] = ':'.join(tool_search_paths) + ':' + env['PATH']
- return command.Run(name, *args, capture=True,
- capture_stderr=True, env=env, **kwargs)
+ if for_target:
+ name, extra_args = GetTargetCompileTool(name)
+ args = tuple(extra_args) + args
+ elif for_host:
+ name, extra_args = GetHostCompileTool(name)
+ args = tuple(extra_args) + args
+ name = os.path.expanduser(name) # Expand paths containing ~
+ all_args = (name,) + args
+ result = command.RunPipe([all_args], capture=True, capture_stderr=True,
+ env=env, raise_on_error=False, binary=binary)
+ if result.return_code:
+ raise Exception("Error %d running '%s': %s" %
+ (result.return_code,' '.join(all_args),
+ result.stderr))
+ return result.stdout
except:
if env and not PathHasFile(env['PATH'], name):
msg = "Please install tool '%s'" % name
#(fname, len(data), len(data)))
return data
-def WriteFile(fname, data):
+def WriteFile(fname, data, binary=True):
"""Write data into a file.
Args:
"""
#self._out.Info("Write file '%s' size %d (%#0x)" %
#(fname, len(data), len(data)))
- with open(Filename(fname), 'wb') as fd:
+ with open(Filename(fname), binary and 'wb' or 'w') as fd:
fd.write(data)
def GetBytes(byte, size):
"""Convert a str type into a bytes type
Args:
- string: string to convert value
+ string: string to convert
Returns:
Python 3: A bytes type
return string.encode('utf-8')
return string
-def Compress(indata, algo):
+def ToString(bval):
+ """Convert a bytes type into a str type
+
+ Args:
+ bval: bytes value to convert
+
+ Returns:
+ Python 3: A bytes type
+ Python 2: A string type
+ """
+ return bval.decode('utf-8')
+
+def Compress(indata, algo, with_header=True):
"""Compress some data using a given algorithm
Note that for lzma this uses an old version of the algorithm, not that
data = Run('gzip', '-c', fname, binary=True)
else:
raise ValueError("Unknown algorithm '%s'" % algo)
+ if with_header:
+ hdr = struct.pack('<I', len(data))
+ data = hdr + data
return data
-def Decompress(indata, algo):
+def Decompress(indata, algo, with_header=True):
"""Decompress some data using a given algorithm
Note that for lzma this uses an old version of the algorithm, not that
"""
if algo == 'none':
return indata
+ if with_header:
+ data_len = struct.unpack('<I', indata[:4])[0]
+ indata = indata[4:4 + data_len]
fname = GetOutputFilename('%s.decomp.tmp' % algo)
with open(fname, 'wb') as fd:
fd.write(indata)
elif algo == 'lzma':
outfname = GetOutputFilename('%s.decomp.otmp' % algo)
Run('lzma_alone', 'd', fname, outfname)
- data = ReadFile(outfname)
+ data = ReadFile(outfname, binary=True)
elif algo == 'gzip':
data = Run('gzip', '-cd', fname, binary=True)
else:
projects / platform / kernel / u-boot.git / blobdiff