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scan-build should transparently interpose on xcodebuild #10865

Open Quuxplusone opened 12 years ago

Quuxplusone commented 12 years ago
Bugzilla Link PR11844
Status NEW
Importance P enhancement
Reported by mandy (mandys.inbox@gmail.com)
Reported on 2012-01-24 05:08:23 -0800
Last modified on 2019-05-24 14:20:55 -0700
Version unspecified
Hardware Macintosh MacOS X
CC anton@korobeynikov.info, flash@pobox.com, jryans@gmail.com, kremenek@apple.com, llvm-bugs@lists.llvm.org, mandys.inbox@gmail.com
Fixed by commit(s)
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See also 
When I run the latest (258) scan-build on code built using XCode 4.2 I get the
following error:-

2012-01-24 10:19:37.498 xcodebuild[780:3803]  DVTAssertions: Warning in
/SourceCache/IDEXcode3ProjectSupport/IDEXcode3ProjectSupport-928/Xcode3Sources/XcodeIDE/Frameworks/DevToolsBase/pbxcore/SpecificationTypes/XCCommandLineToolSpecification.m:828
Details:  Unable to get message category info for tool '/Applications/checker-
258/libexec/ccc-analyzer'.
Reason: i686-apple-darwin11-llvm-gcc-4.2: no input files

Object:   <XCCompilerSpecificationClang: 0x4007d47e0>
Method:   -messageCategoryInfoForExecutablePath:
Thread:   <NSThread: 0x400fae3c0>{name = (null), num = 6}
Please file a bug at http://bugreport.apple.com with this warning message and
any useful information you can provide.

CompileC build/Appy.build/Debug-iphonesimulator/Appy.build/Objects-
normal/i386/main.o Appy/main.m normal i386 objective-c
com.apple.compilers.llvm.clang.1_0.compiler
    cd /Users/Mo/dev/latest
    setenv LANG en_US.US-ASCII
    setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin"
    /Applications/checker-258/libexec/ccc-analyzer -x objective-c -arch i386 -fmessage-length=0 -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -std=gnu99 -fobjc-arc -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wparentheses -Wswitch -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-shorten-64-to-32 -DDEBUG -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -fexceptions -fasm-blocks -mmacosx-version-min=10.6 -gdwarf-2 -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -iquote /Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Appy-generated-files.hmap -I/Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Appy-own-target-headers.hmap -I/Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Appy-all-target-headers.hmap -iquote /Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Appy-project-headers.hmap -I/Users/Mo/dev/latest/build/Debug-iphonesimulator/include -I/Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/DerivedSources/i386 -I/Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/DerivedSources -F/Users/Mo/dev/latest/build/Debug-iphonesimulator -F/Users/Mo/dev/latest -include /Users/Mo/dev/latest/Appy/Appy-Prefix.pch -MMD -MT dependencies -MF /Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Objects-normal/i386/main.d -c /Users/Mo/dev/latest/Appy/main.m -o /Users/Mo/dev/latest/build/Appy.build/Debug-iphonesimulator/Appy.build/Objects-normal/i386/main.o
cc1obj: error: unrecognized command line option "-Wno-sign-conversion"
cc1obj: error: unrecognized command line option "-fdiagnostics-print-source-
range-info"
cc1obj: error: unrecognized command line option "-fdiagnostics-show-category=id"
cc1obj: error: unrecognized command line option "-fdiagnostics-parseable-fixits"
cc1obj: error: unrecognized command line option "-fobjc-arc"
Command /Applications/checker-258/libexec/ccc-analyzer failed with exit code 1

** BUILD FAILED **

The following build commands failed:
    CompileC build/Appy.build/Debug-iphonesimulator/Appy.build/Objects-
normal/i386/main.o Appy/main.m normal i386 objective-c
com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)
scan-build: Removing directory
'/var/folders/p6/r86f0tb17tq2c5crbndb0q7m0000gn/T/scan-build-2012-01-24-1'
because it contains no reports.

I can fix this using a solution listed here:
http://stackoverflow.com/questions/7820011/clang-scan-build-wont-work-with-
xcode-4-2-llvm-3-0-build-configuration however even when using this "hack" the
results imply the scanner does not recognise ARC'd code as I have numerous
false warnings about potential memory leaks.

Thanks for any help
Quuxplusone commented 12 years ago 
Have you tried to "Please file a bug at http://bugreport.apple.com with this
warning message and
any useful information you can provide." as you were suggested?
Quuxplusone commented 12 years ago 
This is part of the limitation of scan-build.  It doesn't know what compiler
Xcode intended to use for compilation, so it just defaults to gcc (which
doesn't recognize the arguments -fdiagnostics-print-source-range-info, and so
forth).

Beyond the link you cited, there is no really good way to fix this in scan-
build without doing REAL interposition of the build (e.g., intercept exec's of
the compiler and run the analyzer on the side) instead of the poor man's
interposition we are doing now by overriding the compiler used by xcodebuild.
Unfortunately, there are no resources currently allocated to that effort.

You're best bet for Xcode integration (right now) is to use the set-xcode-
analyzer script:

  http://clang-analyzer.llvm.org/xcode.html

and run the analyzer directly within Xcode or from the command line using
xcodebuild.
Quuxplusone commented 12 years ago

Retitling to reflect the broader fix that is need, which is essentially a reimplementation of scan-build.