main.Append(CCFLAGS=["-Wno-uninitialized"])
-have_pkg_config = readCommand(['pkg-config', '--version'], exception='')
+have_pkg_config = main.Detect('pkg-config')
# Check for the protobuf compiler
+main['HAVE_PROTOC'] = False
+protoc_version = []
try:
- main['HAVE_PROTOC'] = True
protoc_version = readCommand([main['PROTOC'], '--version']).split()
-
- # First two words should be "libprotoc x.y.z"
- if len(protoc_version) < 2 or protoc_version[0] != 'libprotoc':
- warning('Protocol buffer compiler (protoc) not found.\n'
- 'Please install protobuf-compiler for tracing support.')
- main['HAVE_PROTOC'] = False
- else:
- # Based on the availability of the compress stream wrappers,
- # require 2.1.0
- min_protoc_version = '2.1.0'
- if compareVersions(protoc_version[1], min_protoc_version) < 0:
- warning('protoc version', min_protoc_version,
- 'or newer required.\n'
- 'Installed version:', protoc_version[1])
- main['HAVE_PROTOC'] = False
- else:
- # Attempt to determine the appropriate include path and
- # library path using pkg-config, that means we also need to
- # check for pkg-config. Note that it is possible to use
- # protobuf without the involvement of pkg-config. Later on we
- # check go a library config check and at that point the test
- # will fail if libprotobuf cannot be found.
- if have_pkg_config:
- conf.CheckPkgConfig('protobuf', '--cflags', '--libs-only-L')
except Exception as e:
warning('While checking protoc version:', str(e))
- main['HAVE_PROTOC'] = False
+
+# Based on the availability of the compress stream wrappers, require 2.1.0.
+min_protoc_version = '2.1.0'
+
+# First two words should be "libprotoc x.y.z"
+if len(protoc_version) < 2 or protoc_version[0] != 'libprotoc':
+ warning('Protocol buffer compiler (protoc) not found.\n'
+ 'Please install protobuf-compiler for tracing support.')
+elif compareVersions(protoc_version[1], min_protoc_version) < 0:
+ warning('protoc version', min_protoc_version, 'or newer required.\n'
+ 'Installed version:', protoc_version[1])
+else:
+ # Attempt to determine the appropriate include path and
+ # library path using pkg-config, that means we also need to
+ # check for pkg-config. Note that it is possible to use
+ # protobuf without the involvement of pkg-config. Later on we
+ # check go a library config check and at that point the test
+ # will fail if libprotobuf cannot be found.
+ if have_pkg_config:
+ conf.CheckPkgConfig('protobuf', '--cflags', '--libs-only-L')
+ main['HAVE_PROTOC'] = True
+
# Cache build files in the supplied directory.
warning('Python version too new. Python 3 expected.')
# On Solaris you need to use libsocket for socket ops
-if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'):
- if not conf.CheckLibWithHeader('socket', 'sys/socket.h',
- 'C++', 'accept(0,0,0);'):
- error("Can't find library with socket calls (e.g. accept()).")
+if not conf.CheckLibWithHeader(
+ [None, 'socket'], 'sys/socket.h', 'C++', 'accept(0,0,0);'):
+ error("Can't find library with socket calls (e.g. accept()).")
# Check for zlib. If the check passes, libz will be automatically
# added to the LIBS environment variable.
if not have_tuntap:
print("Info: Compatible header file <linux/if_tun.h> not found.")
-# x86 needs support for xsave. We test for the structure here since we
-# won't be able to run new tests by the time we know which ISA we're
-# targeting.
-have_kvm_xsave = conf.CheckTypeSize('struct kvm_xsave',
- '#include <linux/kvm.h>') != 0
-
-# Check if the requested target ISA is compatible with the host
-def is_isa_kvm_compatible(isa):
- try:
- import platform
- host_isa = platform.machine()
- except:
- warning("Failed to determine host ISA.")
- return False
-
- if not have_posix_timers:
- warning("Can not enable KVM, host seems to lack support "
- "for POSIX timers")
- return False
-
- if isa == "arm":
- return host_isa in ( "armv7l", "aarch64" )
- elif isa == "x86":
- if host_isa != "x86_64":
- return False
-
- if not have_kvm_xsave:
- warning("KVM on x86 requires xsave support in kernel headers.")
- return False
-
- return True
+# Determine what ISA KVM can support on this host.
+kvm_isa = None
+host_isa = None
+try:
+ import platform
+ host_isa = platform.machine()
+except:
+ pass
+
+if not host_isa:
+ warning("Failed to determine host ISA.")
+elif not have_posix_timers:
+ warning("Cannot enable KVM, host seems to lack support for POSIX timers")
+elif host_isa in ('armv7l', 'aarch64'):
+ kvm_isa = 'arm'
+elif host_isa == 'x86_64':
+ if conf.CheckTypeSize('struct kvm_xsave', '#include <linux/kvm.h>') != 0:
+ kvm_isa = 'x86'
else:
- return False
+ warning("KVM on x86 requires xsave support in kernel headers.")
# Check if the exclude_host attribute is available. We want this to
if not have_kvm:
warning("Can not enable KVM, host seems to lack KVM support")
env['USE_KVM'] = False
- elif not is_isa_kvm_compatible(env['TARGET_ISA']):
- print("Info: KVM support disabled due to unsupported host and "
- "target ISA combination")
+ elif kvm_isa != env['TARGET_ISA']:
+ print("Info: KVM for %s not supported on %s host." %
+ (env['TARGET_ISA'], kvm_isa))
env['USE_KVM'] = False
if env['USE_TUNTAP']:
projects / gem5.git / blobdiff