Re: [ECOS] Enable thumb interworking?

[Bart Veer <bartv at redhat dot com>]

>>>>> "Lewin" == Lewin A R W Edwards <larwe@larwe.com> writes:

    Lewin> Secondly, why is the ecos/install/lib/target.ld file always
    Lewin> generated incorrectly by ecosconfig? The spacing is all
    Lewin> screwed; every word has a carriage return after it. I have
    Lewin> to copy the linker script from my Windows machine in order
    Lewin> to link at all.

target.ld is not build by ecosconfig, it is built by a custom build
step defined in the CDL for the architectural HAL package. For an ARM
processor that means the following:

        <PREFIX>/lib/target.ld: <PACKAGE>/src/arm.ld
        $(CC) -E -P -Wp,-MD,target.tmp -DEXTRAS=1 -xc $(INCLUDE_PATH) $(CFLAGS) -o $@ $<
        @echo $@ ": \\" > $(notdir $@).deps
        @tail +2 target.tmp >> $(notdir $@).deps
        @echo >> $(notdir $@).deps
        @rm target.tmp

The first command is the important one. Essentially it passes the
arm.ld file from the src subdirectory of the ARM architectural HAL
package through the C preprocessor. It ends up #include'ing a
file provided by the platform HAL which supplies information such as
what memory is actually available.

If you are seeing spurious carriage returns then either these are
generated by the C preprocessor, or some of the files being #include'd
contain spurious carriage returns e.g. because they were just copied
directly from a Windows box. I have never seen the actual behaviour
you describe, so you'll have to investigate further. Problems with the
C preprocessor should be reported to the appropriate gcc mailing list.

Bart