CMake Platform Dependent Issues
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The Platforms / Compilers Table
Platform | System Info | Compilers | Macros | List Dependencies | Trace Syscal/Signal | Runtime Library Path |
---|---|---|---|---|---|---|
Linux | uname -a | gcc, g++, icc | __linux | ldd program | strace | LD_LIBRARY_PATH |
HP-UX | uname -a | cc, aCC | __hpux | chatr program | SHLIB_PATH (32), LD_LIBRARY_PATH (64) | |
AIX | uname -a | xlc, xlC | _AIX | dump -H program | LIBPATH | |
SunOS | uname -a | cc, CC | __sparc | ldd program | LD_LIBRARY_PATH (32), LD_LIBRARY_PATH_64 (64) | |
IRIX | hinv, uname -a | cc, CC | __sgi | ldd program | LD_LIBRARY_PATH (o32), LD_LIBRARYN32_PATH (n32), LD_LIBRARY64_PATH (64) | |
Max OSX / Darwin | system_profiler, uname -a | gcc, g++ | __APPLE__ | otool -L program | ktrace -f outfile program; kdump outfile | DYLD_LIBRARY_PATH |
Cygwin | uname -a | gcc, g++ | __CYGWIN__, _WIN32 | depends program.exe | PATH | |
Windows | ver | Visual Studio 6, cl | _WIN32 | depends program.exe | PATH | |
Visual Studio 7, cl | depends program.exe † | |||||
Visual Studio 7.1, cl | depends program.exe † |
- † In order for depends to be installed, the "Win32 Platform SDK Tool" needs to be selected when installing Visual Studio (See Determining Which DLLs to Redistribute).
Architecture Modes
Compiler | Command | Languages | Architecture Flags | Macros | |
---|---|---|---|---|---|
GNU | gcc | C | __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__ | ||
g++ | C++ | ||||
SGI MIPSpro | cc | C | -o32, -n32, -64 | _COMPILER_VERSION, _MIPS_SIM==_ABIO32 (o32), _MIPS_SIM==_ABIN32 (n32), _MIPS_SIM==_ABI64 (64) | |
CC | C++ | ||||
SunPro | cc | C | -xarch=... | __SUNPRO_C | #include <sys/isa_defs.h>: _ILP32 (32), _LP64 (64) |
CC | C++ | __SUNPRO_CC | |||
HP | cc | C | +DD64 | __LP64__ (64) | |
aCC | C++ | __HP_aCC | |||
IBM VisualAge | xlc | C | -q32, -q64 | __IBMC__ | |
xlC | C++ | __IBMCPP__ |
Compiler Options and Flags
Compiler | Full warnings | Warnings as Errors | Disabling a particular warning (#n) |
---|---|---|---|
gcc | -W -Wall | -Werror | |
MIPS Pro | -fullwarn | -w2 | |
icc | -Wall -w2 -Wcheck | -Werror | -wd(#n) |
bcc32 | -g1 | -w-(#n) | |
xlC | -qflag=w:w or -qlanglv=ansi | ||
cl | /W4 | /WX | /Wd(#n) |
aCC | +w | +We | +Warg1[,arg2,..argn] |
- More platform specific information can be found in ROSETTA STONE platforms table (Mostly for system administrators)
- Another even more complete table: Using static and shared libraries across platforms (For various compiler flags and options)
Debugging Tips
The gdbrun Script for UNIX-like Platforms
The following is an extremely useful script that will run any command line in a gdb debugger. Put this text in an executable file called "gdbrun":
#!/bin/sh extra_text="" if [ "$1" == "--break-main" ]; then extra_text="break main" shift fi EXEC="$1" shift run_text="run" for a in "$@"; do run_text="${run_text} \"$a\"" done TMPFILE=/tmp/gdbrun.$$.$#.tmp cat > ${TMPFILE} <<EOF ${extra_text} ${run_text} EOF gdb -x ${TMPFILE} "${EXEC}" rm -f "${TMPFILE}"
Then one may debug a test like this:
gdbrun /path/to/myexe --some-arg --some-other-arg
Notes about this script:
- It supports spaces in argument names (note the for loop)
- Takes extra argument --break-main, which causes the program to stop once all the libraries are loaded
- It always run debugger, even when program exits normally
- Cannot be used with MPI or any other system that runs your program from a shell script