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Compile and link a program (GNU)
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We recommend you use
qcc
instead of invoking gcc directly.
You can use the -V option to qcc to invoke
gcc.
For example:
qcc -Vgcc_ntoarmle my_file.c |
gcc_variant [ option | filename ]... g++_variant [ option | filename ]...
QNX Neutrino, Linux, Microsoft Windows
The gcc_variant depends on the target platform, as follows:
| Target platform: | gcc_variant: |
|---|---|
| ARM | ntoarm-gcc |
| MIPS | ntomips-gcc |
| PowerPC | ntoppc-gcc |
| SH4 | ntosh-gcc |
| x86 | ntox86-gcc |
The g++_variant depends on the target platform, as follows:
| Target platform: | g++_variant: |
|---|---|
| ARM | ntoarm-g++ |
| MIPS | ntomips-g++ |
| PowerPC | ntoppc-g++ |
| SH4 | ntosh-g++ |
| x86 | ntox86-g++ |
-b [ntox86 | ntomips | ntoppc | ntosh]
-c -S -E -o file -pipe -v -x language
-ansi -fallow-single-precision -fcond-mismatch -fno-asm -fno-builtin -ffreestanding -fhosted -fsigned-bitfields -fsigned-char -funsigned-bitfields -funsigned-char -fwritable-strings -traditional -traditional-cpp -trigraphs
-fall-virtual -fdollars-in-identifiers -felide-constructors -fenum-int-equiv -fexternal-templates -ffor-scope -fno-for-scope -fhandle-signatures -fmemoize-lookups -fname-mangling-version-n -fno-default-inline -fno-gnu-keywords -fnonnull-objects -fguiding-decls -foperator-names -fstrict-prototype -fthis-is-variable -ftemplate-depth-n -nostdinc++ -traditional +en
-fsyntax-only -pedantic -pedantic-errors -w -W -Wall -Waggregate-return -Wbad-function-cast -Wcast-align -Wcast-qual -Wchar-subscript -Wcomment -Wconversion -Werror -Wformat -Wid-clash-len -Wimplicit -Wimplicit-int -Wimplicit-function-declarations -Wimport -Winline -Wlarger-than-len -Wmain -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wno-import -Wold-style-cast -Woverloaded-virtual -Wparentheses -Wpointer-arith -Wredundant-decls -Wreorder -Wreturn-type -Wshadow -Wsign-compare -Wstrict-prototypes -Wswitch -Wsynth -Wtemplate-debugging -Wtraditional -Wtrigraphs -Wundef -Wuninitialized -Wunused -Wwrite-strings
-a -ax -dletters -fpretend-float -fprofile-arcs -ftest-coverage -g -glevel -gcoff -gdwarf -gdwarf-1 -gdwarf-1+ -gdwarf-2 -ggdb -gstabs -gstabs+ -gxcoff -gxcoff+ -p -pg -print-file-name=library -print-libgcc-file-name -print-prog-name=program -print-search-dirs -save-temps
QNX extension:
-MAP
-fbranch-probabilities -fcaller-saves -fcse-follow-jumps -fcse-skip-blocks -fdelayed-branch -fexpensive-optimizations -ffast-math -ffloat-store -fforce-addr -fforce-mem -ffunction-sections -finline-functions -fkeep-inline-functions -fno-default-inline -fno-defer-pop -fno-function-cse -fno-inline -fno-peephole -fomit-frame-pointer -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fstrength-reduce -fthread-jumps -funroll-all-loops -funroll-loops -O -O0 -O1 -O2 -O3
-Aquestion(answer) -C -dD -dM -dN -Dmacro[=defn] -E -H -idirafter dir -include file -imacros file -iprefix file -iwithprefix dir -iwithprefixbefore dir -isystem dir -M -MD -MM -MMD -MG -nostdinc -P -trigraphs -undef -Umacro -Wp,option
-Wa,option
object-file-name -llibrary -nostartfiles -nodefaultlibs -nostdlib -s -static -shared -symbolic -Wl,option -Xlinker option -u symbol
-Bprefix -Idir -I- -Ldir -specs=file
-b machine -V version
PowerPC options:
-mcpu=cpu type -mtune=cpu type -mpower -mno-power -mpower2 -mno-power2 -mpowerpc -mno-powerpc -mpowerpc-gpopt -mno-powerpc-gpopt -mpowerpc-gfxopt -mno-powerpc-gfxopt -mnew-mnemonics -mno-new-mnemonics -mfull-toc -mminimal-toc -mno-fop-in-toc -mno-sum-in-toc -mxl-call -mno-xl-call -mthreads -mpe -msoft-float -mhard-float -mmultiple -mno-multiple -mstring -mno-string -mupdate -mno-update -mfused-madd -mno-fused-madd -mbit-align -mno-bit-align -mstrict-align -mno-strict-align -mrelocatable -mno-relocatable -mrelocatable-lib -mno-relocatable-lib -mtoc -mno-toc -mtraceback -mno-traceback -mlittle -mlittle-endian -mbig -mbig-endian -mcall-aix -mcall-sysv -mprototype -mno-prototype -msim -mmvme -mads -myellowknife -memb -msdata -msdata=opt -G num
MIPS options:
-mabicalls -mcpu=cpu type -membedded-data -membedded-pic -mfp32 -mfp64 -mgas -mgp32 -mgp64 -mgpopt -mhalf-pic -mhard-float -mint64 -mips1 -mips2 -mips3 -mlong64 -mlong-calls -mmemcpy -mmips-as -mmips-tfile -mno-abicalls -mno-embedded-data -mno-embedded-pic -mno-gpopt -mno-long-calls -mno-memcpy -mno-mips-tfile -mno-rnames -mno-stats -mrnames -msoft-float -m4650 -msingle-float -mmad -mstats -EL -EB -G num -nocpp
The MIPS options include the following QNX extension:
-mqnxpic
i386 options:
-mcpu=cpu type -march=cpu type -mieee-fp -mno-fancy-math-387 -mno-fp-ret-in-387 -msoft-float -msvr3-shlib -mno-wide-multiply -mrtd -malign-double -mreg-alloc=list -mregparm=num -malign-jumps=num -malign-loops=num -malign-functions=num
SH options:
-m1 -m2 -m3 -m3e -m4 -ml -mb -mdalign -mbigtable -mrelax -mspace -msmall
-fcall-saved-reg -fcall-used-reg -ffixed-reg -finhibit-size-directive -fcheck-memory-usage -fprefix-function-name -fno-common -fno-ident -fno-gnu-linker -fpcc-struct-return -freg-struct-return -fshared-data -fpic -fPIC -fexceptions -fshort-enums -fshort-double -fvolatile -fvolatile-global -fverbose-asm -fpack-struct -fstack-check +e0 +e1
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If you use exceptions, you must link with the -lang-c++ option to
qcc.
This option is the default for QCC.
Even with exceptions disabled, the default new() operator throws a std::out_of_memory exception if there isn't enough memory. If you want new() to return NULL instead of throwing an exception, overload the new() operator with your own. |
QNX Neutrino extension:
We recommend you use qcc or QCC instead of gcc to compile and link your programs.
For detailed documentation about gcc, see the GNU website at http://www.gnu.org/.
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If you have trouble using the default debug format (-gdwarf), switch to -gdwarf-2 or -gstabs. |
GNU
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