Supported GNU Tools Options

Wind River (WRS) supports GNU tools options used in building WRS software. For some of the GNU tools, WRS supports only a subset of options. However, all original options supported by the open-source versions of each tool are still available in WRS versions. WRS has made no effort to disable the non-supported options, nor to issue errors or warnings if an unsupported option is used.

For command-line options, WRS has not tested the product when used with an unsupported feature. Since WRS hasn't tested these unsupported features, they may or may not work.

• gcc - The GNU C/C++ Compiler

  • All Architectures:

    -D
    -E
    -EB
    -EL
    -I
    -M
    -MG
    -O
    -O0
    -O2
    -P
    -T
    -U
    -Wall
    -Wcomment
    -Wstrict-prototypes
    -ansi
    -c
    -fdollars-in-identifiers
    -fimplicit-templates
    -fno-builtin
    -fno-defer-pop
    -fno-exceptions
    -fno-rtti
    -fpic
    -fsigned-char
    -fstrength-reduce
    -fvolatile
    -g
    -o
    -traditional-cpp
    -u
    -w
    -x
    

  • MC68K Architecture:

    -mnobitfield
    -msoft-float
    -xassembler-with-cpp
    

  • ARM/Xscale/StrongARM Architecture:

    -mapcs-32
    -mbig-endian
    -mcpu=strongarm
    -mcpu=strongarm110
    -mlittle-endian
    -xassembler-with-cpp
    

  • MIPS Architecture:

    -G 0
    -mips1
    -mips2
    -mips3
    -mno-branch-likely
    -msoft-float
    -xassembler-with-cpp
    

  • Pentium Architecture:

    -march=p3
    -march=pentium
    -march=pentiumpro
    -mcpu=pentium
    -mcpu=pentiumiii
    -mcpu=pentiumpro
    -xassembler-with-cpp
    

  • PowerPC Architecture:

    -fvec
    -mcpu=403
    -mcpu=405
    -mcpu=440
    -mcpu=603
    -mcpu=604
    -mcpu=860
    -mstrict-align
    -xassembler-with-cpp
    

  • Hitachi SuperH:

    -m2
    -m3
    -m4
    -ml
    -xassembler-with-cpp
    

• The GNU Assembler (with C pre-processor)

  When viewing WRS Makefiles, remember that the assembler is often invoked from the ccarch control program, which would mean that you may see these options prefaced with a "-Wa," string. We build assembler files by running the source files through the C pre-processor first, then the assembler. As a result, you'll see in the assembler report all of the various '-D', '-U' and '-I' options that you'd associate with preprocessing.

  -G
  -a=ibldummy.lst
  -dsp
  -m68000
  -m68030
  -m68040
  -march=armv4
  -march=armv4t
  -march=armv5
  -mcpu=xscale
  -mthumb
  -mthumb-interwork
  -mvec
  

• The GNU Linker

  When viewing WRS Makefiles, remember that the linker is often invoked from the cc arch control program, which would mean that you may see these options prefaced with a "-Wl," string.

  -EB
  -EL
  -Map
  -N
  -T
  -Ttext
  -X
  -b
  -e
  -mshlelf
  -n
  -nostdlib
  -o
  -oformat
  -r
  -static
  -u
  -x
  

• The GNU Object-File Copy Utility

  Note: Some of these options are non-FSF options added to the utility by Wind River.

  --adjust-vma
  --binary-without-bss
  --extract-symbol
  --gap-fill
  --ignore-vma
  --output-vector-pc
  --output-vector-sp
  --pad-to
  --reverse
  --set-start
  -O
  -Obinary
  -Osrec
  -v
  

• The GNU Name List Utility

  Supported options:

  -c
  -g