From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 05/16] uclibc: disable DOPIC on ARM noMMU
Date: Thu, 17 Mar 2016 12:00:03 +0100 [thread overview]
Message-ID: <20160317120003.0ff6b5be@free-electrons.com> (raw)
In-Reply-To: <CAMo8BfK66_TVGbJo=4TBmXATSX=7axE1+=Xj9Q1vdTBCdJUG0g@mail.gmail.com>
Hello,
On Thu, 17 Mar 2016 13:32:46 +0300, Max Filippov wrote:
> > I have no idea if Xtensa noMMU has ever been tested, whether it uses
> > FLAT or FDPIC, etc. Could we leave this up to people interested in
> > Xtensa ? Or alternatively, remove noMMU Xtensa support altogether.
> >
> > I'm Cc'ing Max to see if he knows what the status of noMMU Xtensa is.
>
> I tested noMMU xtensa lightly. It uses FLAT
> ( https://github.com/uclinux-dev/elf2flt/commit/052ec62c087a3e9dfb62d231ee4aad253bce2f7e
> ),
> requires a patch for gcc
> ( https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=e3c15dbe1c4cd63d906eb67c1c607cc4fab6b329
> ),
> and currently it defaults to generating PIC code.
> It appears to work with both DOPIC enabled and disabled.
Does it work within Buildroot? I think we should either have support
for Xtensa noMMU and make it work, or we should remove it.
From what you say, if it doesn't work already, it seems like it should
be a huge work to get it working, right?
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-03-17 11:00 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 21:43 [Buildroot] [PATCH 00/16] ARM Cortex-M support Thomas Petazzoni
2016-03-16 21:43 ` [Buildroot] [PATCH 01/16] arch/arm: introduce and use BR2_ARM_CPU_ARMV7M Thomas Petazzoni
2016-03-16 22:29 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 02/16] arch/arm: Cortex-M3 provides only Thumb-2 Thomas Petazzoni
2016-03-16 22:43 ` Arnout Vandecappelle
2016-03-17 8:03 ` Thomas Petazzoni
2016-03-17 11:08 ` Peter Korsgaard
2016-03-17 13:06 ` Thomas Petazzoni
2016-03-17 20:36 ` Thomas Petazzoni
2016-03-17 22:34 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 03/16] arch/arm: add Cortex-M4 entry Thomas Petazzoni
2016-03-16 22:50 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 04/16] uclibc: Enable compile in thumb mode when selected Thomas Petazzoni
2016-03-16 23:01 ` Arnout Vandecappelle
2016-03-17 11:21 ` Peter Korsgaard
2016-03-17 13:10 ` Thomas Petazzoni
2016-03-17 21:25 ` Thomas Petazzoni
2016-03-17 21:44 ` Peter Korsgaard
2016-03-17 22:03 ` Thomas Petazzoni
2016-03-17 22:18 ` Peter Korsgaard
2016-03-16 21:43 ` [Buildroot] [PATCH 05/16] uclibc: disable DOPIC on ARM noMMU Thomas Petazzoni
2016-03-16 23:09 ` Arnout Vandecappelle
2016-03-17 8:06 ` Thomas Petazzoni
2016-03-17 10:32 ` Max Filippov
2016-03-17 11:00 ` Thomas Petazzoni [this message]
2016-03-17 11:39 ` Max Filippov
2016-03-16 21:43 ` [Buildroot] [PATCH 06/16] uclibc: NPTL thread implementation only available on MMU platforms Thomas Petazzoni
2016-03-16 23:11 ` Arnout Vandecappelle
2016-03-17 12:14 ` Peter Korsgaard
2016-03-17 13:11 ` Thomas Petazzoni
2016-03-17 19:45 ` Waldemar Brodkorb
2016-03-17 20:08 ` Peter Korsgaard
2016-03-16 21:43 ` [Buildroot] [PATCH 07/16] musl: build broken on Thumb, use ARM mode Thomas Petazzoni
2016-03-16 23:14 ` Arnout Vandecappelle
2016-03-17 8:10 ` Thomas Petazzoni
2016-03-16 21:43 ` [Buildroot] [PATCH 08/16] toolchain-buildroot: update glibc comment for noMMU Thomas Petazzoni
2016-03-16 23:18 ` Arnout Vandecappelle
2016-03-18 20:49 ` Thomas Petazzoni
2016-03-18 20:59 ` Peter Korsgaard
2016-03-18 21:33 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 09/16] toolchain-buildroot: don't show musl on noMMU platforms Thomas Petazzoni
2016-03-16 23:26 ` Arnout Vandecappelle
2016-03-18 20:51 ` Thomas Petazzoni
2016-03-18 21:42 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 10/16] arch/arm: add support for hard-float on Cortex-M4 Thomas Petazzoni
2016-03-16 23:45 ` Arnout Vandecappelle
2016-03-17 8:16 ` Thomas Petazzoni
2016-03-18 21:47 ` Arnout Vandecappelle
2016-03-18 22:29 ` Thomas Petazzoni
2016-03-16 21:43 ` [Buildroot] [PATCH 11/16] package/Makefile.in: adjust LDFLAGS for elf2flt Thomas Petazzoni
2016-03-16 23:48 ` Arnout Vandecappelle
2016-03-16 21:43 ` [Buildroot] [PATCH 12/16] elf2flt: use new upstream site and add ARM patch Thomas Petazzoni
2016-03-16 23:50 ` Arnout Vandecappelle
2016-03-17 8:18 ` Thomas Petazzoni
2016-03-17 18:53 ` Mike Frysinger
2016-03-17 19:41 ` Waldemar Brodkorb
2016-03-17 20:34 ` Thomas Petazzoni
2016-03-17 20:45 ` Mike Frysinger
2016-03-17 19:39 ` Waldemar Brodkorb
2016-03-16 21:43 ` [Buildroot] [PATCH 13/16] elf2flt: disable Werror to avoid build issues Thomas Petazzoni
2016-03-16 23:53 ` Arnout Vandecappelle
2016-03-17 8:18 ` Thomas Petazzoni
2016-03-17 1:40 ` Mike Frysinger
2016-03-17 8:19 ` Thomas Petazzoni
2016-03-17 18:57 ` Mike Frysinger
2016-03-16 21:43 ` [Buildroot] [PATCH 14/16] afboot-stm32: use the Buildroot toolchain Thomas Petazzoni
2016-03-16 21:43 ` [Buildroot] [PATCH 15/16] configs/stm32f429_disco: new configuration for STM32F429 Discovery board Thomas Petazzoni
2016-03-16 21:43 ` [Buildroot] [PATCH 16/16] configs/stm32f469_disco: new configuration for STM32F469 " Thomas Petazzoni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160317120003.0ff6b5be@free-electrons.com \
--to=thomas.petazzoni@free-electrons.com \
--cc=buildroot@busybox.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox