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[Bug 1001607] Cortex-M4F architectural Floating Point Support


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Ilija Kocho <ilijak@siva.com.mk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #1915|0                           |1
        is obsolete|                            |

--- Comment #30 from Ilija Kocho <ilijak@siva.com.mk> 2012-08-31 19:39:57 BST ---
Created an attachment (id=1921)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1921)
Cortex-M4F Floating Point Support 120831

Trying to upgrade STM32F4 port I found out that upon change of processor family
(CYGHWR_HAL_CORTEXM_STM32_FAMILY) it can dynamically change CYGHWR_HAL_CORTEXM
from "M4" to "M3" with which the code in Attachment 1915 couldn't cope. Here is
an upgrade that fixes that.

Some notes:
It comes with a lot of "requires" in CYGBLD_ARCH_XFLAGS which that may question
its role.

Switching CYGHWR_HAL_CORTEXM_STM32_FAMILY from "F4" to "F3"("F2") when hard ABI
is selected, leaves some unresolved conflicts. They automatically resolve after
a couple interactions from user (right click -> resolve) I guess that
configtool should offer this automatically.

Ilija

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