[binutils/ARM] Clarify .arch_extension possible values

Message ID 92648540-ed3b-0920-ce0a-8d3ed8bce496@foss.arm.com
State New
Headers show
  • [binutils/ARM] Clarify .arch_extension possible values
Related show

Commit Message

Thomas Preudhomme Feb. 20, 2018, 9:47 a.m.

Documentation for .arch_extension says it accepts the same architectural
extensions as those accepted by -mcpu. Given the name and the fact that
-march for obvious reason also accept the same extensions, I believe
it's worth mentioning that it accepts the same extensions as both
-march and -mcpu. This patch addresses that.

ChangeLog entry is as follows:

*** gas/ChangeLog ***

2018-02-19  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* doc/c-arm.texi (.arch_extension): Mention extensions it accepts are
	also the same as -march.

Testing: doc built and display fine.

Ok for master branch?

Best regards,



Nick Clifton Feb. 20, 2018, 12:39 p.m. | #1
Hi Thomas,

> 2018-02-19  Thomas Preud'homme  <thomas.preudhomme@arm.com>


>     * doc/c-arm.texi (.arch_extension): Mention extensions it accepts are

>     also the same as -march.

Approved - please apply.



diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index ec0f544794353a8db75b14bc5d137bd19a4d8105..f67696f00fbbbf76627d41cf45b682432e272ba8 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -631,7 +631,7 @@  extensions.
 @item .arch_extension @var{name}
 Add or remove an architecture extension to the target architecture.  Valid
 values for @var{name} are the same as those accepted as architectural
-extensions by the @option{-mcpu} commandline option.
+extensions by the @option{-mcpu} and @option{-march} commandline options.
 @code{.arch_extension} may be used multiple times to add or remove extensions
 incrementally to the architecture being compiled for.