<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 3, 2020 at 2:06 AM Sebastian Huber <<a href="mailto:sebastian.huber@embedded-brains.de">sebastian.huber@embedded-brains.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello,<br>
<br>
someone from ARM changed the machine options used to build the RTEMS <br>
multilibs some time ago (I think GCC 8):<br>
<br>
arm-rtems6-gcc -print-multi-lib -march=armv4t<br>
.;<br>
thumb;@mthumb<br>
armv5te+fp/hard;@march=armv5te+fp@mfloat-abi=hard<br>
thumb/armv6-m;@mthumb@march=armv6-m<br>
thumb/armv7-a;@mthumb@march=armv7-a<br>
thumb/armv7-r;@mthumb@march=armv7-r<br>
thumb/cortex-m3;@mthumb@mcpu=cortex-m3<br>
thumb/cortex-m4+nofp;@mthumb@mcpu=cortex-m4+nofp<br>
thumb/armv7-a+simd/hard;@mthumb@march=armv7-a+simd@mfloat-abi=hard<br>
thumb/armv7-r+fp/hard;@mthumb@march=armv7-r+fp@mfloat-abi=hard<br>
thumb/cortex-m4/hard;@mthumb@mcpu=cortex-m4@mfloat-abi=hard<br>
thumb/cortex-m7/hard;@mthumb@mcpu=cortex-m7@mfloat-abi=hard<br>
eb/thumb/armv7-r;@mbig-endian@mthumb@march=armv7-r<br>
eb/thumb/armv7-r+fp/hard;@mbig-endian@mthumb@march=armv7-r+fp@mfloat-abi=hard<br>
<br>
It seems that our current machine options still map to the right multilib:<br>
<br>
arm-rtems6-gcc -print-multi-directory -march=armv7-a -mthumb -mfpu=neon <br>
-mfloat-abi=hard -mtune=cortex-a9<br>
thumb/armv7-a+simd/hard<br>
<br>
arm-rtems6-gcc -print-multi-directory -mthumb -mcpu=cortex-m4 <br>
-mfpu=fpv4-sp-d16 -mfloat-abi=hard<br>
thumb/cortex-m4/hard<br>
<br>
arm-rtems6-gcc -print-multi-directory -march=armv7-r -mthumb -mbig-endian<br>
eb/thumb/armv7-r<br>
<br>
arm-rtems6-gcc -print-multi-directory -march=armv7-r -mthumb <br>
-mbig-endian -mfpu=vfpv3-d16 -mfloat-abi=hard<br>
eb/thumb/armv7-r+fp/hard<br>
<br>
Should we change the options to match the ones given in the multilib <br>
definition or should we keep the current options? If we change the <br>
options, then we can no longer build with GCC 7.<br></blockquote><div><br></div><div>Unless they are going to remove the old options, I would tend to want to stick</div><div>with them.</div><div><br></div><div>--joel </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
_______________________________________________<br>
devel mailing list<br>
<a href="mailto:devel@rtems.org" target="_blank">devel@rtems.org</a><br>
<a href="http://lists.rtems.org/mailman/listinfo/devel" rel="noreferrer" target="_blank">http://lists.rtems.org/mailman/listinfo/devel</a><br>
</blockquote></div></div>