[PATCH 3/5] gas: Default to ELF for RTEMS targets
Joel Sherrill
joel.sherrill@oarcorp.com
Thu Jan 19 22:59:00 GMT 2017
On 1/19/2017 4:55 PM, Alan Modra wrote:
> On Thu, Jan 19, 2017 at 09:39:39AM -0600, Joel Sherrill wrote:
>> One of the reasons this was duplicated was to ensure
>> that when someone tinkered with a target they knew
>> XXX-rtems was impacted. With this patch, there is
>> no record of each cpu-rtems being a used target.
>>
>> I know binutils doesn't remove targets often but this
>> makes the individual RTEMS targets invisible.
>>
>> It definitely means we likely don't have to touch
>> these files for new targets but it also means
>> we aren't obvious when deprecation discussions
>> occur.
>>
>> It would be nice to have a binutils maintainer wade
>> in. I can see how this is a nice clean up patch but
>> it loses information. What are the thoughts on this?
>
> I would prefer to lose that information. We're talking about bfd/
> here, and given that there is no difference between bfd support for
> <target>-elf and <target>-rtems, it doesn't make much sense to
> single out rtems targets in config.bfd. The only concern would be if
> a future change removed support for <target>-elf but you wanted to
> keep <target>-rtems. However, I can't see us deprecating an ELF
> target unless all support for <target> is no longer wanted.
That's the second opinion I wanted. Just wanted to
confirm that someone with a broader binutils thought
the information loss would be OK.
I am OK with it.
>> Except for the loss of documentation issue, I am
>> OK with it.
>>
>> --joel
>>
>> On 1/19/2017 6:42 AM, Sebastian Huber wrote:
>>> gas/
>>> * configure.tgt (aarch64*-*-rtems*): Remove.
>>> (bfin-*-rtems*): Likewise.
>>> (h8300-*-rtems*): Likewise.
>>> (i386-*-rtems*): Likewise.
>>> (m32c-*-rtems*): Likewise.
>>> (m32r-*-rtems*): Likewise.
>>> (m68k-*-rtems*): Likewise.
>>> (mips-*-rtems*): Likewise.
>>> (nios2-*-rtems*): Likewise.
>>> (ppc-*-rtems*): Likewise.
>>> (sh-*-rtems*): Likewise.
>>> (sparc64-*-rtems*): Likewise.
>>> (sparc-*-rtems*): Likewise.
>>> (*-*-rtems*) Use ELF format.
>>> ---
>>> gas/configure.tgt | 20 ++++++--------------
>>> 1 file changed, 6 insertions(+), 14 deletions(-)
>>>
>>> diff --git a/gas/configure.tgt b/gas/configure.tgt
>>> index 95c4a13..c3b352b 100644
>>> --- a/gas/configure.tgt
>>> +++ b/gas/configure.tgt
>>> @@ -122,7 +122,7 @@ esac
>>> generic_target=${cpu_type}-$vendor-$os
>>> # Note: This table is alpha-sorted, please try to keep it that way.
>>> case ${generic_target} in
>>> - aarch64*-*-elf | aarch64*-*-rtems*) fmt=elf;;
>>> + aarch64*-*-elf*) fmt=elf;;
>>> aarch64*-*-fuchsia*) fmt=elf;;
>>> aarch64*-*-linux*) fmt=elf em=linux ;;
>>>
>>> @@ -167,7 +167,6 @@ case ${generic_target} in
>>>
>>> bfin-*-linux-uclibc) fmt=fdpicelf em=linux ;;
>>> bfin-*-uclinux*) fmt=elf em=linux ;;
>>> - bfin-*-rtems*) fmt=elf ;;
>>> bfin-*elf) fmt=elf ;;
>>>
>>> cr16-*-elf*) fmt=elf ;;
>>> @@ -210,7 +209,7 @@ case ${generic_target} in
>>> hppa-*-bsd*) fmt=som em=hppa ;;
>>> hppa-*-hiux*) fmt=som em=hppa ;;
>>>
>>> - h8300-*-elf | h8300-*-rtems*) fmt=elf ;;
>>> + h8300-*-elf) fmt=elf ;;
>>> h8300-*-linux*) fmt=elf em=linux ;;
>>>
>>> i370-*-elf* | i370-*-linux*) fmt=elf ;;
>>> @@ -266,7 +265,6 @@ case ${generic_target} in
>>> i386-*-vsta) fmt=aout ;;
>>> i386-*-msdosdjgpp* \
>>> | i386-*-go32*) fmt=coff em=go32 ;;
>>> - i386-*-rtems*) fmt=elf ;;
>>> i386-*-gnu*) fmt=elf em=gnu ;;
>>> i386-*-mach*) fmt=aout em=mach ;;
>>> i386-*-msdos*) fmt=aout ;;
>>> @@ -306,9 +304,9 @@ case ${generic_target} in
>>>
>>> lm32-*-*) fmt=elf ;;
>>>
>>> - m32c-*-elf | m32c-*-rtems*) fmt=elf ;;
>>> + m32c-*-elf) fmt=elf ;;
>>>
>>> - m32r-*-elf* | m32r-*-rtems*) fmt=elf ;;
>>> + m32r-*-elf*) fmt=elf ;;
>>> m32r-*-linux*) fmt=elf em=linux;;
>>>
>>> m68hc11-*-* | m6811-*-*) fmt=elf ;;
>>> @@ -317,7 +315,6 @@ case ${generic_target} in
>>> m68k-*-aout) fmt=aout bfd_gas=yes ;;
>>> m68k-*-elf*) fmt=elf ;;
>>> m68k-*-sysv4*) fmt=elf em=svr4 ;;
>>> - m68k-*-rtems*) fmt=elf ;;
>>> m68k-*-linux-*) fmt=elf em=linux ;;
>>> m68k-*-uclinux*) fmt=elf em=uclinux ;;
>>> m68k-*-gnu*) fmt=elf ;;
>>> @@ -344,7 +341,7 @@ case ${generic_target} in
>>> mips-*-sysv4*MP* | mips-*-gnu*) fmt=elf em=tmips ;;
>>> mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
>>> fmt=elf em=tmips ;;
>>> - mips-*-elf* | mips-*-rtems*) fmt=elf ;;
>>> + mips-*-elf*) fmt=elf ;;
>>> mips-*-netbsd*) fmt=elf em=tmips ;;
>>> mips-*-openbsd*) fmt=elf em=tmips ;;
>>>
>>> @@ -367,7 +364,6 @@ case ${generic_target} in
>>> nds32-*-elf*) fmt=elf ;;
>>> nds32-*-linux*) fmt=elf em=linux ;;
>>>
>>> - nios2-*-rtems*) fmt=elf ;;
>>> nios2*-linux*) fmt=elf em=linux ;;
>>>
>>> ns32k-pc532-mach*) fmt=aout em=pc532mach ;;
>>> @@ -390,7 +386,6 @@ case ${generic_target} in
>>> ppc-*-eabi* | ppc-*-sysv4*) fmt=elf ;;
>>> ppc-*-linux-*) fmt=elf em=linux ;;
>>> ppc-*-solaris*) fmt=elf em=solaris ;;
>>> - ppc-*-rtems*) fmt=elf ;;
>>> ppc-*-macos*) fmt=coff em=macos ;;
>>> ppc-*-nto*) fmt=elf ;;
>>> ppc-*-kaos*) fmt=elf ;;
>>> @@ -423,13 +418,10 @@ case ${generic_target} in
>>> sh-*-coff*) fmt=coff ;;
>>> sh-*-nto*) fmt=elf ;;
>>> sh-*-pe*) fmt=coff em=pe bfd_gas=yes endian=little ;;
>>> - sh-*-rtems*) fmt=elf ;;
>>> sh-*-kaos*) fmt=elf ;;
>>> shle*-*-kaos*) fmt=elf ;;
>>> sh64-*-elf*) fmt=elf ;;
>>>
>>> - sparc64-*-rtems*) fmt=elf ;;
>>> - sparc-*-rtems*) fmt=elf ;;
>>> sparc-*-sunos4*) fmt=aout em=sun3 ;;
>>> sparc-*-aout) fmt=aout em=sparcaout ;;
>>> sparc-*-coff) fmt=coff ;;
>>> @@ -488,7 +480,7 @@ case ${generic_target} in
>>> *-*-generic) fmt=generic ;;
>>> *-*-xray | *-*-hms) fmt=coff ;;
>>> *-*-sim) fmt=coff ;;
>>> - *-*-elf | *-*-sysv4*) fmt=elf ;;
>>> + *-*-elf | *-*-rtems* | *-*-sysv4*) fmt=elf ;;
>>> *-*-solaris*) fmt=elf em=solaris ;;
>>> *-*-aros*) fmt=elf em=linux ;;
>>> *-*-vxworks* | *-*-windiss) fmt=elf em=vxworks ;;
>>>
>>
>> --
>>
>
--
Joel Sherrill, Ph.D. Director of Research & Development
joel.sherrill@OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35806
Support Available (256) 722-9985
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