gxlc and gxlc++ utilities - Option mappings for XL C and XL C/C++ for AIX, V11.1

Content

The gxlc and gxlc++ utilities accept GNU C or C++ compiler options and translate them into comparable XL C or XL C/C++ options. Both utilities use the resulting XL C or XL C/C++ options to create an xlc or xlc++ invocation command, which they then use to invoke the compiler.

These utilities are provided to help you reuse make files created for applications previously developed with GNU C/C++. However, to fully exploit the capabilities of the compiler, we recommend that you use the standard XL C or XL C/C++ invocation commands and their associated options.

The actions of gxlc and gxlc++ are controlled by the gxlc.cfg configuration file. The GNU C/C++ options that have an XL C or XL C++ counterpart are shown in this file. Not every GNU option has a corresponding XL C or XL C/C++ option, and gxlc and gxlc++ will return warnings for input options that were not translated. You can modify the contents of the gxlc.cfg configuration file to meet your specific compilation requirements.

The gxlc and gxlc++ utilities will accept the following GNU C/C++ options and translate them to their corresponding XL C or XL C/C++ compiler options.

GCC option	Mapping to xlc or xlc++ option
-###	-#
-ansi	-qlanglvl=extc89 -qnokeyword=inline -qnokeyword=typeof -qnokeyword=asm -qnocpluscmt -D__STRICT_ANSI__
-B	-B
-C	-C
-c	-c
-Dmacro[=defn]	-Dmacro[=defn]
-dM	-qshowmacros
-E	-E
-e	-e
-fdollars-in-identifiers	-qdollar
-fexceptions	-qeh
-ffast-math	-qignerrno -qnostrict -D__FAST_MATH__
-ffixed-reg	-qreserved_reg=registry_list
-ffor-scope	-qlanglvl=ansifor
-fno-for-scope	-qlanglvl=noansifor
-ffunction-sections	-qfuncsect
-fno-implicit-inline-templates	-qtmplinst=noinlines
-fno-implicit-templates	-qtmplinst=none
-finline-functions	-qinline
-fkeep-inline-functions	-qkeepinlines
-finline	-qinline
-fno-gnu-keywords	-qnokeyword=typeof
-fno-operator-names	-qnokeyword=and -qnokeyword=bitand -qnokeyword=bitor -qnokeyword=compl -qnokeyword=not -qnokeyword=or -qnokeyword=xor
-fpascal-strings	-qmacpstr
-fPIC	-qpic=large
-fpic	-qpic=small
-frtti	-qrtti
-fshort-enums	-qenum=small
-fsigned-bitfields	-qbitfields=signed
-fsigned-char	-qchars=signed
-fstack-protector	-qstackprotect
-fstack-protector-all	-qstackprotect=all
-fstrict-aliasing	-qalias=ansi
-fno-strict-aliasing	-qalias=noansi
-fsyntax-only	-qsyntaxonly
-ftemplate-depth-N	-qtemplatedepth=N
-ftls-model=model	-qtls=model
-funroll-all-loops	-qunroll=yes
-funroll-loops	-qunroll=yes
-funsigned-bitfields	-qbitfields=unsigned
-funsigned-char	-qchars=unsigned
-fweak	-qweaksymbol
-fwritable-strings	-qnoro
-g	-g
-g3	-g
-ggdb	-g
-gxcoff	-g
-Idir	-Idir
-include file	-qinclude=file
-Ldir	-Ldir
-lgcc	-lgcc
-llibrary	-llibrary
-M	-qmakedep=gcc
-MD	-qmakedep=gcc
-MF *	-MF *
-maix32	-q32
-maix64	-q64
-maltivec	-qaltivec
-mcpu=403	-qarch=403
-mcpu=601	-qarch=601
-mcpu=602	-qarch=602
-mcpu=603	-qarch=603
-mcpu=604	-qarch=604
-mcpu=970	-qarch=ppc970
-mcpu=common	-qarch=com
-mcpu=power	-qarch=pwr
-mcpu=power2	-qarch=pwr2
-mcpu=power3	-qarch=pwr3
-mcpu=power4	-qarch=pwr4
-mcpu=power5	-qarch=pwr5
-mcpu=power6	-qarch=pwr6
-mcpu=power6x	-qarch=pwr6e
-mcpu=powerpc	-qarch=ppc
-mcpu=powerpc64	-qarch=ppc64
-mcpu=rs64a	-qarch=rs64a
-mno-fused-madd	-qfloat=nomaf
-mfused-madd	-qfloat=maf
-mlong-double-64	-qnoldbl128
-mlong-double-128	-qldbl128
-mminimal-toc	-qminimaltoc
-mpower	-qarch=pwr
-mpower2	-qarch=pwr2
-mpowerpc	-qarch=ppc
-mpowerpc-gfxopt	-qarch=pwrgr
-mpowerpc64	-qarch=ppc64
-mtune=403	-qtune=403
-mtune=601	-qtune=601
-mtune=602	-qtune=602
-mtune=603	-qtune=603
-mtune=604	-qtune=604
-mtune=970	-qtune=ppc970
-mtune=common	-qtune=com
-mtune=power	-qtune=pwr
-mtune=power2	-qtune=pwr2
-mtune=power3	-qtune=pwr3
-mtune=power4	-qtune=pwr4
-mtune=power5	-qtune=pwr5
-mtune=power6	-qtune=pwr6
-mtune=power6x	-qtune=pwr6e
-mtune=powerpc	-qtune=ppc
-mtune=powerpc64	-qtune=ppc64
-mtune=rs64a	-qtune=rs64a
-nodefaultlibs	-qnolib
-nostartfiles	-qnocrt
-nostdinc	-qnostdinc
-nostdlib	-qnolib -qnocrt
-O	-O
-O0	-qnoopt
-O1	-O
-O2	-O2
-O3	-O3
-Os	-O2 -qcompact
-o	-o
-P	-qnoppline
-p	-p
-pg	-pg
--param ssp-buffer-size=N	-qstackprotect=size=N
-r	-r
-S	-S
-s	-s
-shared	-qmkshrobj
-std=c89	-F:c89
-std=iso9899:1990	-F:c89
-std=iso9899:199409	-F:c89
-std=c99	-F:c99
-std=c9x	-F:c99
-std=iso9899:1999	-F:c99
-std=iso9899:199x	-F:c99
-std=gnu89	-qlanglvl=extc89
-std=gnu99	-qlanglvl=extc99
-std=gnu9x	-qlanglvl=extc99
-std=c++98	-qlanglvl=strict98
-std=gnu++98	-qlanglvl=extended
-time	-qphsinfo
-trigraphs	-qtrigraph
-Umacro	-Umacro
-u	-u
--version	-qversion
-Wformat	-qformat
-Wformat-extra-args	-qformat=exargs
-Wno-format-extra-args	-qformat=noexargs
-Wformat-nonliteral	-qformat=nlt
-Wno-format-nonliteral	-qformat=nonlt
-Wformat-security	-qformat=sec
-Wno-format-security	-qformat=nosec
-Wformat-y2k	-qformat=y2k
-Wno-format-y2k	-qformat=noy2k
-Wstack-protector	-qinfo=stp
-Wuninitialized	-qinfo=ini
-Wunreachable-code	-qinfo=eff
-Wa,option	-Wa,option
-Wl,option	-Wl,option
-Wp,-MD,*	-Wp,-qmakedep=gcc,-MF*
-Wp,option	-Wp,option
-w	-w
-Xassembler option	-Wa,option
-Xlinker option	-Wl,option
-x assembler	-qsourcetype=assembler
-x assembler-with-cpp	-qsourcetype=assembler-with-cpp
-x c	-qsourcetype=c
-x c++	-qsourcetype=c++
-x none	-qsourcetype=default
-xassembler	-qsourcetype=assembler
-xassembler-with-cpp	-qsourcetype=assembler-with-cpp
-xc	-qsourcetype=c
-xc++	-qsourcetype=c++
-xnone	-qsourcetype=default
-Z	-Z