First, I followed the debug instruction on http://au.mathworks.com/help/matlab/matlab_external/debugging-on-mac-platforms.html, and run debugging "yprime.c" successfully.
But this method does not work when I try to debug C++ MEX-file. Xcode debugger cannot stop at breakpoints where I set. I double checked all settings are correct.
Then I try to figure out the problem.
1. I run the command and found out no object files that Xcode use for debugging were generated:
mex -g BallTreeDensity.cpp BallTreeClass.cc BallTreeDensityClass.cc
After I run the command as follow, I found at the end of output, the mex script delete those object files:
mex -g -v BallTreeDensity.cpp BallTreeClass.cc BallTreeDensityClass.cc
Here is the output:
Verbose mode is on.Neither -compatibleArrayDims nor -largeArrayDims is selected. Using -compatibleArrayDims. In the future, MATLAB will require the use of -largeArrayDims and remove the -compatibleArrayDims option. For more information: http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.No MEX options file identified; looking for an implicit selection.... Looking for compiler 'Xcode Clang++' ...... Looking for environment variable 'DEVELOPER_DIR' ...No.... Executing command 'xcode-select -print-path' ...Yes ('/Applications/Xcode.app/Contents/Developer').... Looking for folder '/Applications/Xcode.app/Contents/Developer' ...Yes.... Executing command 'which xcrun' ...Yes ('/Applications/Xcode.app/Contents/Developer/usr/bin/xcrun').... Looking for folder '/Applications/Xcode.app/Contents/Developer/usr/bin' ...Yes.... Executing command 'defaults read com.apple.dt.Xcode IDEXcodeVersionForAgreedToGMLicense' ...No.... Executing command 'defaults read /Library/Preferences/com.apple.dt.Xcode IDEXcodeVersionForAgreedToGMLicense' ...Yes ('6.1.1').... Executing command 'agreed=6.1.1 if echo $agreed | grep -E '[\.\"]' >/dev/null; then lhs=`expr "$agreed" : '\([0-9]*\)[\.].*'` rhs=`expr "$agreed" : '[0-9]*[\.]\(.*\)$'` if echo $rhs | grep -E '[\."]' >/dev/null; then rhs=`expr "$rhs" : '\([0-9]*\)[\.].*'` fi if [ $lhs -gt 4 ] || ( [ $lhs -eq 4 ] && [ $rhs -ge 3 ] ); then echo $agreed else exit 1fi fi' ...Yes ('6.1.1').... Executing command 'xcode-select -print-path' ...Yes ('/Applications/Xcode.app/Contents/Developer').... Looking for folder '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk' ...Yes.... Executing command 'xcode-select -print-path' ...Yes ('/Applications/Xcode.app/Contents/Developer').... Looking for folder '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk' ...Yes.... Executing command 'echo /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk | rev | cut -c1-10 | rev | egrep -oh '[0-9]+\.[0-9]+'' ...Yes ('10.9').Found installed compiler 'Xcode Clang++'.Options file details------------------------------------------------------------------- Compiler location: /Applications/Xcode.app/Contents/Developer Options file: /Applications/MATLAB_R2015a.app/bin/maci64/mexopts/clang++_maci64.xml CMDLINE200 : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -Wl,-twolevel_namespace -undefined error -arch x86_64 -mmacosx-version-min=10.9 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -framework Cocoa -bundle -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" -stdlib=libc++ -g -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" BallTreeDensity.o BallTreeClass.o BallTreeDensityClass.o -L"/Applications/MATLAB_R2015a.app/bin/maci64" -lmx -lmex -lmat -o BallTreeDensity.mexmaci64 CXX : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ DEFINES : -DMX_COMPAT_32 -DMATLAB_MEX_FILE MATLABMEX : -DMATLAB_MEX_FILE CXXFLAGS : -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ INCLUDE : -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" CXXOPTIMFLAGS : -O2 -DNDEBUG CXXDEBUGFLAGS : -g LDXX : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ LDFLAGS : -Wl,-twolevel_namespace -undefined error -arch x86_64 -mmacosx-version-min=10.9 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -framework Cocoa -bundle -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" -stdlib=libc++ LDBUNDLE : -bundle LINKEXPORT : -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" LINKLIBS : -L"/Applications/MATLAB_R2015a.app/bin/maci64" -lmx -lmex -lmat LDOPTIMFLAGS : -O LDDEBUGFLAGS : -g OBJEXT : .o LDEXT : .mexmaci64 DEVELOPER_DIR_CHECK : XCODE_DIR : /Applications/Xcode.app/Contents/Developer XCRUN_DIR : /Applications/Xcode.app/Contents/Developer/usr/bin XCODE_AGREED_VERSION : 6.1.1 ISYSROOT : /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk SDKVER : 10.9 MATLABROOT : /Applications/MATLAB_R2015a.app ARCH : maci64 SRC : /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.cpp;/Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeClass.cc;/Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensityClass.cc OBJ : BallTreeDensity.o;BallTreeClass.o;BallTreeDensityClass.o OBJS : BallTreeDensity.o BallTreeClass.o BallTreeDensityClass.o SRCROOT : /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity DEF : /var/folders/mw/k9r9hgf50tq3xv_5vgck1v2m0000gn/T//mex_1863173812270_1489/BallTreeDensity.def EXP : BallTreeDensity.exp LIB : BallTreeDensity.lib EXE : BallTreeDensity.mexmaci64 ILK : BallTreeDensity.ilk MANIFEST : BallTreeDensity.mexmaci64.manifest TEMPNAME : BallTreeDensity EXEDIR : EXENAME : BallTreeDensity OPTIM : -g LINKOPTIM : -g CMDLINE100_0 : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.cpp -o BallTreeDensity.o CMDLINE100_1 : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeClass.cc -o BallTreeClass.o CMDLINE100_2 : /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensityClass.cc -o BallTreeDensityClass.o CMDLINE300_0 : rm -f BallTreeDensity.o CMDLINE300_1 : rm -f BallTreeClass.o CMDLINE300_2 : rm -f BallTreeDensityClass.o-------------------------------------------------------------------Building with 'Xcode Clang++'./Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.cpp -o BallTreeDensity.oIn file included from /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.cpp:9:In file included from /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.h:16:/Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTree.h:64:63: warning: comparison of 0 <= unsigned expression is always true [-Wtautological-compare]bool validIndex(BallTree::index ind) const { return ((0<=ind) && (ind < 2*num_points)); } ~^ ~~~1 warning generated./Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeClass.cc -o BallTreeClass.oIn file included from /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeClass.cc:16:/Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTree.h:64:63: warning: comparison of 0 <= unsigned expression is always true [-Wtautological-compare]bool validIndex(BallTree::index ind) const { return ((0<=ind) && (ind < 2*num_points)); } ~^ ~~~1 warning generated./Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -c -DMX_COMPAT_32 -DMATLAB_MEX_FILE -I"/Applications/MATLAB_R2015a.app/extern/include" -I"/Applications/MATLAB_R2015a.app/simulink/include" -fno-common -arch x86_64 -mmacosx-version-min=10.9 -fexceptions -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -fobjc-arc -std=c++11 -stdlib=libc++ -g /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensityClass.cc -o BallTreeDensityClass.oIn file included from /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensityClass.cc:14:In file included from /Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTreeDensity.h:16:/Users/ideepblue/Documents/MATLAB/third-party/@kde/t/BallTree.h:64:63: warning: comparison of 0 <= unsigned expression is always true [-Wtautological-compare]bool validIndex(BallTree::index ind) const { return ((0<=ind) && (ind < 2*num_points)); } ~^ ~~~1 warning generated./Applications/Xcode.app/Contents/Developer/usr/bin/xcrun -sdk macosx10.9 clang++ -Wl,-twolevel_namespace -undefined error -arch x86_64 -mmacosx-version-min=10.9 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -framework Cocoa -bundle -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" -stdlib=libc++ -g -Wl,-exported_symbols_list,"/Applications/MATLAB_R2015a.app/extern/lib/maci64/mexFunction.map" BallTreeDensity.o BallTreeClass.o BallTreeDensityClass.o -L"/Applications/MATLAB_R2015a.app/bin/maci64" -lmx -lmex -lmat -o BallTreeDensity.mexmaci64rm -f BallTreeDensity.orm -f BallTreeClass.orm -f BallTreeDensityClass.oMEX completed successfully.
2. Then I use the command as follow to generate object file only:
mex -c -g -v BallTreeDensity.cpp BallTreeClass.cc BallTreeDensityClass.cc
But Xcode debugging still does not work.
I try my best to solve this problem, but still got nothing.
So, my question is how to debug c++ mex file on Mac platform?
Best Answer