On 08/11/2016 04:31 AM, Thomas Preudhomme wrote:
diff --git a/gcc/doc/fragments.texi b/gcc/doc/fragments.texi
index
b6d8541c8ca820fa732363a05221e2cd4d1251c2..abf4e128671bb4751d21f24bb69625593d3c839e
100644
--- a/gcc/doc/fragments.texi
+++ b/gcc/doc/fragments.texi
@@ -117,12 +117,15 @@ specified, there are combinations that should not be
built. In that
case, set @code{MULTILIB_EXCEPTIONS} to be all of the switch exceptions
in shell case syntax that should not be built.
-For example the ARM processor cannot execute both hardware floating
-point instructions and the reduced size THUMB instructions at the same
-time, so there is no need to build libraries with both of these
-options enabled. Therefore @code{MULTILIB_EXCEPTIONS} is set to:
+For example on ARM targets @option{-mfloat-abi=soft} requests to use a
+softfloat implementation for floating-point operations. Therefore, it
+does not make sense to find both @option{-mfloat-abi=soft} and an
+@option{mfpu} option on the command line so @code{MULTILIB_EXCEPTIONS}
+could contain the following exception (assuming that
+@option{-mfloat-abi} comes after in @code{MULTILIB_OPTIONS} and given
+that @option{-mfloat-abi=soft} is the default value):
@smallexample
-*mthumb/*mhard-float*
+*mfpu=*
@end smallexample
@findex MULTILIB_REQUIRED
This version still has a lot of copy-editing issues. I suggest
rewriting as:
For example, on ARM targets @option{-mfloat-abi=soft} requests use of
software floating-point operations, so it
does not make sense to build libraries with both
@option{-mfloat-abi=soft} and an @option{-mfpu} option.
@code{MULTILIB_EXCEPTIONS} could contain the following exception
but here I get stuck in suggesting a rewrite, because I can't parse this
part at all to figure out what you're trying to say:
(assuming that
@option{-mfloat-abi} comes after in @code{MULTILIB_OPTIONS} and given
that @option{-mfloat-abi=soft} is the default value):
"comes after in"? Comes after what? If the order is important here,
the documentation should explain why instead of just "assuming" things
about it.
-Sandra the confused
