| Message ID | 5534D76F.2060503@gjlay.de |
|---|---|
| State | New |
| Headers | show |
Georg-Johann Lay <avr@gjlay.de> writes: > + <a href="http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html">spec file</a>. > + If the compiler is used together with AVR-LibC, this requires at > + least GCC 5.2 and a version of AVR-LibC which implements Really 5.2? -Andi
Am 04/20/2015 um 03:40 PM schrieb Andi Kleen: > Georg-Johann Lay <avr@gjlay.de> writes: >> + <a href="http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html">spec file</a>. >> + If the compiler is used together with AVR-LibC, this requires at >> + least GCC 5.2 and a version of AVR-LibC which implements > > Really 5.2? > > -Andi It is still unclear to me whether changes to 3ary platforms may go into 5.1. See https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00908.html Johann
On Mon, Apr 20, 2015 at 06:21:30PM +0200, Georg-Johann Lay wrote: > Am 04/20/2015 um 03:40 PM schrieb Andi Kleen: > >Georg-Johann Lay <avr@gjlay.de> writes: > >>+ <a href="http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html">spec file</a>. > >>+ If the compiler is used together with AVR-LibC, this requires at > >>+ least GCC 5.2 and a version of AVR-LibC which implements > > > >Really 5.2? > > > >-Andi > > > It is still unclear to me whether changes to 3ary platforms may go into 5.1. See > > https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00908.html At this point no. Jakub
Hi Johann,
On Mon, 20 Apr 2015, Georg-Johann Lay wrote:
> Okay to install?
+ <li>The AVR port uses a new scheme to describe supported devices:
+ For each supported device the compiler provides a device-specific
+ <a href="http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html">spec file</a>.
+ If the compiler is used together with AVR-LibC, this requires at
+ least GCC 5.2 and a version of AVR-LibC which implements
+ <a href="http://savannah.nongnu.org/bugs/?44574"</a>#44574</a>.</li>
Can you please make the two links https-links? (Especially the
one to gcc.gnu.org actually redirects.)
Just using "#44574" for a reference, may that be a little confusing,
or is it sufficiently clear to AVR users?
+ <li>A new command option <code>-nodevicelib</code> has been added.
"command-line option"
+ If this option is turned on the compiler won't link against AVR-LibC's
+ device-specific library <code>lib<i>device</i>.a</code> by omitting
+ <code>-l<i>device</i></code> from the linker's command line.
How about making this "...-nodevicelib</code> prevents the compiler
from linking against...."?
+ If the compiler had not been
+ <a href="http://gcc.gnu.org/install/configure.html">configured</a>
+ to be used with AVR-LibC, the compiler will not link against that
+ library and the option has no effect.</li>
"was not" (or "is") instead of "had not", and can you please use
https here as well?
Though, really, could this be just simplified to "If the compiler is
not configured for use with AVR-LibC to begin with, this option has
no effect"?
Your patch is fine with the above changes or considering them and
deciding not go for one or the other.
Gerald
Index: gcc-5/changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-5/changes.html,v retrieving revision 1.109 diff -u -p -r1.109 changes.html --- gcc-5/changes.html 20 Apr 2015 08:22:35 -0000 1.109 +++ gcc-5/changes.html 20 Apr 2015 10:34:45 -0000 @@ -28,6 +28,14 @@ <code>is_trivially_default_constructible</code>, <code>is_trivially_copy_constructible</code> and <code>is_trivially_copy_assignable</code> should be used instead.</li> + <li>On AVR, support has been added for the devices ATtiny4/5/9/10/20/40. + This requires Binutils 2.25 or newer.</li> + <li>The AVR port uses a new scheme to describe supported devices: + For each supported device the compiler provides a device-specific + <a href="http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html">spec file</a>. + If the compiler is used together with AVR-LibC, this requires at + least GCC 5.2 and a version of AVR-LibC which implements + <a href="http://savannah.nongnu.org/bugs/?44574"</a>#44574</a>.</li> </ul> <h2 id="general">General Optimizer Improvements</h2> @@ -690,6 +698,18 @@ here</a>.</p> </li> </ul> +<h3 id="avr">AVR</h3> +<ul> + <li>A new command option <code>-nodevicelib</code> has been added. + If this option is turned on the compiler won't link against AVR-LibC's + device-specific library <code>lib<i>device</i>.a</code> by omitting + <code>-l<i>device</i></code> from the linker's command line. + If the compiler had not been + <a href="http://gcc.gnu.org/install/configure.html">configured</a> + to be used with AVR-LibC, the compiler will not link against that + library and the option has no effect.</li> +</ul> + <h3 id="x86">IA-32/x86-64</h3> <ul> <li>New ISA extensions support