public inbox for gcc-help@gcc.gnu.org
 help / color / mirror / Atom feed
* gcc-4.7.2 arm-eabi multilibs
@ 2012-11-14  0:13 Chris Johns
  0 siblings, 0 replies; only message in thread
From: Chris Johns @ 2012-11-14  0:13 UTC (permalink / raw)
  To: gcc-help

Hello,

Why are the multilibs so limited for the default build with a target of 
arm-eabi ?

The compiler supports '-march=armv7-m -mthumb' how-ever this leads to ld 
[1] emitting 'blx' instructions when accessing libgcc functions and the 
'blx' instruction is not supported on Cortex-3M processor I am using.

Looking in gcc/config/arm/t-arm-elf I see a number of commented options.

Thanks
Chris

[1] http://sourceware.org/ml/binutils/2012-03/msg00198.html

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2012-11-14  0:13 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-14  0:13 gcc-4.7.2 arm-eabi multilibs Chris Johns

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).