ccc: Embrace destiny as a clang compiler driver.
This redoes the default mode that ccc runs in w.r.t. using clang. Now
ccc defaults to always using clang for any task clang can
handle. However, the following options exist to tweak this behavior:
-ccc-no-clang: Don't use clang at all for compilation (still used for
static analysis).
-ccc-no-clang-cxx: Don't use clang for C++ and Objective-C++ inputs.
-ccc-no-clang-cpp: Don't use clang as a preprocessor.
-ccc-clang-archs <archs>: If present, only use clang for the given
comma separated list of architectures. This only works on Darwin for
now.
Note that all -ccc options must be first on the command line.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63346 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/ccc/ccclib/Driver.py b/tools/ccc/ccclib/Driver.py
index 6749dae..bdcdcb7 100644
--- a/tools/ccc/ccclib/Driver.py
+++ b/tools/ccc/ccclib/Driver.py
@@ -28,9 +28,10 @@
self.cccHostBits = self.cccHostMachine = None
self.cccHostSystem = self.cccHostRelease = None
self.cccCXX = False
- self.cccClang = False
self.cccEcho = False
self.cccFallback = False
+ self.cccNoClang = self.cccNoClangCXX = self.cccNoClangPreprocessor = False
+ self.cccClangArchs = None
# Certain options suppress the 'no input files' warning.
self.suppressMissingInputWarning = False
@@ -115,12 +116,10 @@
# FIXME: How to handle override of host? ccc specific options?
# Abuse -b?
- if self.getenvBool('CCC_CLANG'):
- self.cccClang = True
- if self.getenvBool('CCC_ECHO'):
- self.cccEcho = True
- if self.getenvBool('CCC_FALLBACK'):
- self.cccFallback = True
+ arg = os.getenv('CCC_ADD_ARGS')
+ if arg:
+ args = filter(None, map(str.strip, arg.split(',')))
+ argv = args + argv
while argv and argv[0].startswith('-ccc-'):
fullOpt,argv = argv[0],argv[1:]
@@ -132,12 +131,20 @@
cccPrintPhases = True
elif opt == 'cxx':
self.cccCXX = True
- elif opt == 'clang':
- self.cccClang = True
elif opt == 'echo':
self.cccEcho = True
elif opt == 'fallback':
self.cccFallback = True
+
+ elif opt == 'no-clang':
+ self.cccNoClang = True
+ elif opt == 'no-clang-cxx':
+ self.cccNoClangCXX = True
+ elif opt == 'no-clang-cpp':
+ self.cccNoClangPreprocessor = True
+ elif opt == 'clang-archs':
+ self.cccClangArchs,argv = argv[0].split(','),argv[1:]
+
elif opt == 'host-bits':
self.cccHostBits,argv = argv[0],argv[1:]
elif opt == 'host-machine':
diff --git a/tools/ccc/ccclib/ToolChain.py b/tools/ccc/ccclib/ToolChain.py
index 73b0127e..6ce6ebc 100644
--- a/tools/ccc/ccclib/ToolChain.py
+++ b/tools/ccc/ccclib/ToolChain.py
@@ -54,6 +54,28 @@
else:
return args
+ def shouldUseClangCompiler(self, action):
+ # If user requested no clang, or this isn't a "compile" phase,
+ # or this isn't a C family option, then don't use clang.
+ if (self.driver.cccNoClang or
+ not isinstance(action.phase, (Phases.PreprocessPhase,
+ Phases.CompilePhase,
+ Phases.SyntaxOnlyPhase,
+ Phases.EmitLLVMPhase,
+ Phases.PrecompilePhase)) or
+ action.inputs[0].type not in Types.cTypesSet):
+ return False
+
+ if self.driver.cccNoClangPreprocessor:
+ if isinstance(action.phase, Phases.PreprocessPhase):
+ return False
+
+ if self.driver.cccNoClangCXX:
+ if action.inputs[0].type in Types.cxxTypesSet:
+ return False
+
+ return True
+
class Darwin_X86_ToolChain(ToolChain):
def __init__(self, driver, darwinVersion, gccVersion, archName):
super(Darwin_X86_ToolChain, self).__init__(driver)
@@ -106,20 +128,23 @@
major,minor,minorminor = self.darwinVersion
return '%d.%d.%d' % (10, major-4, minor)
+ def shouldUseClangCompiler(self, action):
+ if not super(Darwin_X86_ToolChain, self).shouldUseClangCompiler(action):
+ return False
+
+ # Only use clang if user didn't override archs, or this is one
+ # of the ones they provided.
+ if (not self.driver.cccClangArchs or
+ self.archName in self.driver.cccClangArchs):
+ return True
+
+ return False
+
def selectTool(self, action):
assert isinstance(action, Phases.JobAction)
- if self.driver.cccClang and self.archName == 'i386':
- if (action.inputs[0].type in (Types.CType, Types.CTypeNoPP,
- Types.ObjCType, Types.ObjCTypeNoPP) and
- (isinstance(action.phase, Phases.CompilePhase) or
- isinstance(action.phase, Phases.SyntaxOnlyPhase) or
- isinstance(action.phase, Phases.EmitLLVMPhase))):
- return self.clangTool
- elif (action.inputs[0].type in (Types.CHeaderType, Types.CHeaderNoPPType,
- Types.ObjCHeaderType, Types.ObjCHeaderNoPPType) and
- isinstance(action.phase, Phases.PrecompilePhase)):
- return self.clangTool
+ if self.shouldUseClangCompiler(action):
+ return self.clangTool
return self.toolMap[action.phase.__class__]
@@ -220,17 +245,7 @@
def selectTool(self, action):
assert isinstance(action, Phases.JobAction)
- if self.driver.cccClang:
- if (action.inputs[0].type in (Types.CType, Types.CTypeNoPP,
- Types.ObjCType, Types.ObjCTypeNoPP) and
- (isinstance(action.phase, Phases.PreprocessPhase) or
- isinstance(action.phase, Phases.CompilePhase) or
- isinstance(action.phase, Phases.SyntaxOnlyPhase) or
- isinstance(action.phase, Phases.EmitLLVMPhase))):
- return self.clangTool
- elif (action.inputs[0].type in (Types.CHeaderType, Types.CHeaderNoPPType,
- Types.ObjCHeaderType, Types.ObjCHeaderNoPPType) and
- isinstance(action.phase, Phases.PrecompilePhase)):
- return self.clangTool
+ if self.shouldUseClangCompiler(action):
+ return self.clangTool
return self.toolMap[action.phase.__class__]
diff --git a/tools/ccc/ccclib/Tools.py b/tools/ccc/ccclib/Tools.py
index a24255c..61d6a24 100644
--- a/tools/ccc/ccclib/Tools.py
+++ b/tools/ccc/ccclib/Tools.py
@@ -190,6 +190,9 @@
cmd_args.append('-emit-llvm-bc')
elif outputType is Types.AsmTypeNoPP:
cmd_args.append('-S')
+ elif (inputs[0].type.preprocess and
+ outputType is inputs[0].type.preprocess):
+ cmd_args.append('-E')
elif outputType is Types.PCHType:
# No special option needed, driven by -x. However, we
# patch the output name to try and not conflict with gcc.
diff --git a/tools/ccc/ccclib/Types.py b/tools/ccc/ccclib/Types.py
index 4af0767..1dd3ed9 100644
--- a/tools/ccc/ccclib/Types.py
+++ b/tools/ccc/ccclib/Types.py
@@ -146,6 +146,22 @@
'treelang' : TreelangType,
}
+# Set of C family types.
+cTypesSet = set([CType, CTypeNoPP,
+ ObjCType, ObjCTypeNoPP,
+ CXXType, CXXTypeNoPP,
+ ObjCXXType, ObjCXXTypeNoPP,
+ CHeaderType, CHeaderNoPPType,
+ ObjCHeaderType, ObjCHeaderNoPPType,
+ CXXHeaderType, CXXHeaderNoPPType,
+ ObjCXXHeaderType, ObjCXXHeaderNoPPType])
+
+# Set of C++ family types.
+cxxTypesSet = set([CXXType, CXXTypeNoPP,
+ ObjCXXType, ObjCXXTypeNoPP,
+ CXXHeaderType, CXXHeaderNoPPType,
+ ObjCXXHeaderType, ObjCXXHeaderNoPPType])
+
# Check that the type specifier map at least matches what the types
# believe to be true.
assert not [name for name,type in kTypeSpecifierMap.items()
diff --git a/tools/ccc/test/ccc/Xarch.c b/tools/ccc/test/ccc/Xarch.c
index 0c0eee0..5c3a1f9 100644
--- a/tools/ccc/test/ccc/Xarch.c
+++ b/tools/ccc/test/ccc/Xarch.c
@@ -1,4 +1,4 @@
-// RUN: xcc -### -fsyntax-only -Xarch_i386 -Wall -Xarch_ppc -Wunused -arch i386 -arch ppc %s &> %t &&
+// RUN: xcc -ccc-no-clang -### -fsyntax-only -Xarch_i386 -Wall -Xarch_ppc -Wunused -arch i386 -arch ppc %s &> %t &&
// RUN: grep '"-Xarch"' %t | count 0 &&
// RUN: grep '"-Wall"' %t | count 1 &&
// RUN: grep 'i686-apple' %t | grep -v '"-m64"' | count 1 &&
diff --git a/tools/ccc/test/ccc/aliases.c b/tools/ccc/test/ccc/aliases.c
index f9b89a1..101c4e7 100644
--- a/tools/ccc/test/ccc/aliases.c
+++ b/tools/ccc/test/ccc/aliases.c
@@ -1,13 +1,13 @@
-// RUN: xcc -### -S --all-warnings %s &> %t &&
+// RUN: xcc -ccc-no-clang -### -S --all-warnings %s &> %t &&
// RUN: grep -- '"-Wall"' %t &&
-// RUN: xcc -### -S --ansi %s &> %t &&
+// RUN: xcc -ccc-no-clang -### -S --ansi %s &> %t &&
// RUN: grep -- '"-ansi"' %t &&
-// RUN: xcc -### -S --assert foo --assert=foo %s &> %t &&
+// RUN: xcc -ccc-no-clang -### -S --assert foo --assert=foo %s &> %t &&
// RUN: grep -- '"-A" "foo" "-A" "foo"' %t &&
-// RUN: xcc -### -S --classpath foo --classpath=foo %s &> %t &&
+// RUN: xcc -ccc-no-clang -### -S --classpath foo --classpath=foo %s &> %t &&
// RUN: grep -- '"-fclasspath=foo" "-fclasspath=foo"' %t &&
// RUN: true
diff --git a/tools/ccc/test/ccc/darwin-hello.m b/tools/ccc/test/ccc/darwin-hello.m
index 73289e9..51dea65 100644
--- a/tools/ccc/test/ccc/darwin-hello.m
+++ b/tools/ccc/test/ccc/darwin-hello.m
@@ -1,11 +1,11 @@
// Check that object files compiled with -mdynamic-no-pic can be
// linked.
//
-// RUN: xcc -ccc-clang -m32 -mdynamic-no-pic %s -c -o %t.o &&
-// RUN: xcc -ccc-clang -m32 %t.o -o %t &&
+// RUN: xcc -m32 -mdynamic-no-pic %s -c -o %t.o &&
+// RUN: xcc -m32 %t.o -o %t &&
// RUN: %t | grep "Hello, World" &&
-// RUN: xcc -ccc-clang -m64 -mdynamic-no-pic %s -c -o %t.o &&
-// RUN: xcc -ccc-clang -m64 %t.o -o %t &&
+// RUN: xcc -m64 -mdynamic-no-pic %s -c -o %t.o &&
+// RUN: xcc -m64 %t.o -o %t &&
// RUN: %t | grep "Hello, World" &&
// RUN: true
diff --git a/tools/ccc/test/ccc/darwin-x86-cc1.m b/tools/ccc/test/ccc/darwin-x86-cc1.m
index 6c097d3..d00f855 100644
--- a/tools/ccc/test/ccc/darwin-x86-cc1.m
+++ b/tools/ccc/test/ccc/darwin-x86-cc1.m
@@ -1,14 +1,14 @@
-// RUN: xcc -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -x objective-c -arch i386 -fmessage-length=0 -Wno-trigraphs -fpascal-strings -fasm-blocks -Os -mdynamic-no-pic -DUSER_DEFINE_0 -fvisibility=hidden -mmacosx-version-min=10.5 -gdwarf-2 -IINCLUDE_PATH_0 -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wno-four-char-constants -Wno-unknown-pragmas -Wno-format-y2k -Wpointer-arith -Wreturn-type -Wwrite-strings -Wswitch -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wint-to-pointer-cast -Wpointer-to-int-cast -Wshorten-64-to-32 -FFRAMEWORK_0 -IINCLUDE_PATH_1 -FFRAMEWORK_1 -include USER_INCLUDE_0 -c %s -o %t.out &> %t.opts &&
+// RUN: xcc -ccc-no-clang -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -x objective-c -arch i386 -fmessage-length=0 -Wno-trigraphs -fpascal-strings -fasm-blocks -Os -mdynamic-no-pic -DUSER_DEFINE_0 -fvisibility=hidden -mmacosx-version-min=10.5 -gdwarf-2 -IINCLUDE_PATH_0 -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wno-four-char-constants -Wno-unknown-pragmas -Wno-format-y2k -Wpointer-arith -Wreturn-type -Wwrite-strings -Wswitch -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wint-to-pointer-cast -Wpointer-to-int-cast -Wshorten-64-to-32 -FFRAMEWORK_0 -IINCLUDE_PATH_1 -FFRAMEWORK_1 -include USER_INCLUDE_0 -c %s -o %t.out &> %t.opts &&
// RUN: grep ' "/usr/libexec/gcc/i686-apple-darwin10/4.2.1/cc1obj" "-quiet" "-IINCLUDE_PATH_0" "-FFRAMEWORK_0" "-IINCLUDE_PATH_1" "-FFRAMEWORK_1" "-D__DYNAMIC__" "-DUSER_DEFINE_0" "-include" "USER_INCLUDE_0" ".*" "-quiet" "-dumpbase" "darwin-x86-cc1.m" "-mpascal-strings" "-mdynamic-no-pic" "-mmacosx-version-min=10.5" "-mtune=core2" "-auxbase-strip" ".*" "-gdwarf-2" "-Os" "-Wno-trigraphs" "-Wall" "-Wextra" "-Wno-missing-field-initializers" "-Wno-unused-parameter" "-Wno-four-char-constants" "-Wno-unknown-pragmas" "-Wno-format-y2k" "-Wpointer-arith" "-Wreturn-type" "-Wwrite-strings" "-Wswitch" "-Wcast-align" "-Wchar-subscripts" "-Winline" "-Wnested-externs" "-Wint-to-pointer-cast" "-Wpointer-to-int-cast" "-Wshorten-64-to-32" "-fmessage-length=0" "-fasm-blocks" "-fvisibility=hidden" "-o"' %t.opts &&
// RUN: grep ' "/usr/libexec/gcc/i686-apple-darwin10/4.2.1/as" "-arch" "i386" "-force_cpusubtype_ALL" "-o"' %t.opts &&
-// RUN: xcc -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -v -E -dM -arch i386 -xobjective-c -c %s &> %t.opts &&
+// RUN: xcc -ccc-no-clang -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -v -E -dM -arch i386 -xobjective-c -c %s &> %t.opts &&
// RUN: grep ' "/usr/libexec/gcc/i686-apple-darwin10/4.2.1/cc1obj" "-E" "-quiet" "-v" "-D__DYNAMIC__" ".*" "-fPIC" "-mmacosx-version-min=10.6.5" "-mtune=core2" "-dM"' %t.opts &&
-// RUN: xcc -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -m32 -S -x cpp-output %s &> %t.opts &&
+// RUN: xcc -ccc-no-clang -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -m32 -S -x cpp-output %s &> %t.opts &&
// RUN: grep ' "/usr/libexec/gcc/i686-apple-darwin10/4.2.1/cc1" "-fpreprocessed" ".*darwin-x86-cc1.m" "-fPIC" "-quiet" "-dumpbase" "darwin-x86-cc1.m" "-mmacosx-version-min=10.6.5" "-m32" "-mtune=core2" "-auxbase" "darwin-x86-cc1" "-o" ".*"' %t.opts &&
-// RUN: xcc -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -x objective-c-header %s -o /tmp/x.gch &> %t.opts &&
+// RUN: xcc -ccc-no-clang -ccc-host-bits 32 -ccc-host-machine i386 -ccc-host-system darwin -ccc-host-release 10.5.0 -### -x objective-c-header %s -o /tmp/x.gch &> %t.opts &&
// RUN: grep ' "/usr/libexec/gcc/i686-apple-darwin10/4.2.1/cc1obj" "-quiet" "-D__DYNAMIC__" ".*darwin-x86-cc1.m" "-fPIC" "-quiet" "-dumpbase" "darwin-x86-cc1.m" "-mmacosx-version-min=10.6.5" "-mtune=core2" "-auxbase" ".*" "-o" "/dev/null" "--output-pch=" "/tmp/x.gch"' %t.opts &&
// RUN: true
diff --git a/tools/ccc/test/ccc/hello.c b/tools/ccc/test/ccc/hello.c
index 6b857b5..120db1a 100644
--- a/tools/ccc/test/ccc/hello.c
+++ b/tools/ccc/test/ccc/hello.c
@@ -1,8 +1,8 @@
+// RUN: xcc -ccc-no-clang %s -o %t &&
+// RUN: %t | grep "Hello, World" &&
+// RUN: xcc -ccc-no-clang %s -o %t -pipe &&
+// RUN: %t | grep "Hello, World" &&
// RUN: xcc %s -o %t &&
-// RUN: %t | grep "Hello, World" &&
-// RUN: xcc %s -o %t -pipe &&
-// RUN: %t | grep "Hello, World" &&
-// RUN: xcc -ccc-clang %s -o %t &&
// RUN: %t | grep "Hello, World"
int main() {
diff --git a/tools/ccc/test/ccc/hello.m b/tools/ccc/test/ccc/hello.m
index 9563fd0..b1bcaeb 100644
--- a/tools/ccc/test/ccc/hello.m
+++ b/tools/ccc/test/ccc/hello.m
@@ -1,6 +1,6 @@
-// RUN: xcc %s -o %t &&
+// RUN: xcc -ccc-no-clang %s -o %t &&
// RUN: %t | grep "Hello, World" &&
-// RUN: xcc -ccc-clang %s -o %t &&
+// RUN: xcc %s -o %t &&
// RUN: %t | grep "Hello, World"
int main() {
diff --git a/tools/ccc/test/ccc/universal-hello.c b/tools/ccc/test/ccc/universal-hello.c
index 7702b38..654c435 100644
--- a/tools/ccc/test/ccc/universal-hello.c
+++ b/tools/ccc/test/ccc/universal-hello.c
@@ -1,7 +1,7 @@
-// RUN: xcc -arch ppc -arch i386 -arch x86_64 %s -o %t &&
+// RUN: xcc -ccc-no-clang -arch ppc -arch i386 -arch x86_64 %s -o %t &&
// RUN: %t | grep "Hello, World" &&
-// RUN: xcc -pipe -arch ppc -arch i386 -arch x86_64 %s -o %t &&
+// RUN: xcc -ccc-no-clang -pipe -arch ppc -arch i386 -arch x86_64 %s -o %t &&
// RUN: %t | grep "Hello, World" &&
// Check that multiple archs are handled properly.