[ECOS] EXEEXT settable in generated buildtree, via CDL ??

Bart Veer bartv@ecoscentric.com
Fri Nov 26 16:50:00 GMT 2004


>>>>> "sandeep" == sandeep  <shimple0@yahoo.com> writes:

    sandeep> to set the extension of test images, one can edit
    sandeep> toplevel makefile of buildtree and set EXEEXT to desired
    sandeep> extension.

    sandeep> many months back, i had made a minor addition in
    sandeep> pkgconf/rules.mak
    >> export EXEEXT := $(EXEEXT)

    sandeep> could this be a trivial patch, if useful??

    sandeep> using which i could avoid the need to edit generated
    sandeep> makefile. i just needed to 
    sandeep> - either "export EXEEXT=.xyz" in execution environment
    sandeep> - or "EXEEXT=.xyz make tests"

    sandeep> then i had searched in documents/internet to find a CDL
    sandeep> way for this, but couldn't locate. also i had tried some
    sandeep> calculated guesses on cdl names for this but no success.

The idea of having suffixes for test executables was considered very
briefly in the early days of the eCos design, and rejected. They are
more trouble than they are worth. All the information you need about
an executable can be found in the executable itself, e.g.:

  $ file tm_basic
  tm_basic: ELF 32-bit MSB executable, Motorola 68020, version 1 (SYSV), statically linked, not stripped

The EXEEXT support in rules.mak probably dates back from the days of
gcc 2.95 when gcc on Windows always appended a .exe suffix to an
executable, irrespective of whether that executable was a Windows one
or for an embedded target. It causes all kinds of problems, e.g. test
farm code had to work differently on Linux vs. Windows. Pretty much
everybody involved with gcc for embedded systems opposed that
behaviour and current gcc behaves sensibly. The EXEEXT support in
rules.mak should probably be expunged.

Of course if an application developer wants to use some kind of
suffix for executables, that is fine. eCos does not mandate how
applications get built.

Bart

-- 
Bart Veer                       eCos Configuration Architect
http://www.ecoscentric.com/     The eCos and RedBoot experts

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