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[SPARC/RTEMS] Add __FIX_LEON3FT_B2BST 

In case the LEON3FT back-to-back store workaround is active
(sparc_fix_b2bst), then define the builtin define __FIX_LEON3FT_B2BST on
RTEMS.  The intended use case for this is operating system code in
assembly language.  See also:

https://lists.rtems.org/pipermail/devel/2017-July/018463.html

gcc/
	*  gcc/config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
	conditional builtin define __FIX_LEON3FT_B2BST.

From-SVN: r250255
This commit is contained in:
Sebastian Huber 2017-07-17 05:28:38 +00:00 committed by Sebastian Huber
parent 0e43fc9ee5
commit 18f04b519f
2 changed files with 10 additions and 0 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2017-07-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
Backport from mainline
2017-07-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
* gcc/config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
conditional builtin define __FIX_LEON3FT_B2BST.
2017-07-17 Daniel Cederman <cederman@gaisler.com>
Backport from mainline

2
gcc/config/sparc/rtemself.h
View File

@ -26,6 +26,8 @@ along with GCC; see the file COPYING3. If not see
builtin_define ("__rtems__"); \
builtin_define ("__USE_INIT_FINI__"); \
builtin_assert ("system=rtems"); \
if (sparc_fix_b2bst) \
builtin_define ("__FIX_LEON3FT_B2BST"); \
} \
while (0)