Go to file
Yann E. MORIN 7f7701301e arch/arm: introduce generic FPU internal option
Currently, we consider that any VFP FPU is a superset of VFPv2, and thus
we use VFPv2 as a way to detect that a VFP is used.

However, for Cortex-M cores, the optional FPU is not a superset of
VFPv2; it is even not a VFP [0].

As a consequence, we can no longer consider VFPv2 as a indication that
an FPU is present.

So, we introduce two new internal options, BR2_ARM_CPU_MAYBE_HAS_FPU and
BR2_ARM_CPU_HAS_FPU, which we use to consider the presence of an FPU.

[0] https://en.wikipedia.org/wiki/ARM_Cortex-M#Cortex-M4

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-05-20 19:01:34 +02:00
arch arch/arm: introduce generic FPU internal option 2018-05-20 19:01:34 +02:00
board configs/raspberrypi3_64_defconfig: add support for rpi3b+ 2018-05-20 12:32:08 +02:00
boot uboot: bump to version 2018.05 2018-05-19 23:03:58 +02:00
configs configs/raspberrypi3_64_defconfig: add support for rpi3b+ 2018-05-20 12:32:08 +02:00
docs Update for 2018.05-rc1 2018-05-09 23:00:18 +02:00
fs fs/squashfs: add zstd support 2018-04-25 23:39:04 +02:00
linux linux: ensure correct make targets are used for cuImage/simpleImage.<dtb> 2018-05-06 17:35:00 +02:00
package phidgetwebservice: bump to version 2.1.8.20170607 2018-05-20 18:44:26 +02:00
support support/scripts/pkg-stats: use parenthesis for print 2018-05-19 13:48:21 +02:00
system skeleton: add /dev/fd, /dev/std{in, out, err} symlinks for static /dev on readonly rootfs 2018-05-01 21:53:45 +02:00
toolchain toolchain: remove BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS 2018-05-13 22:58:41 +02:00
utils utils/scancpan: generates hashes of license files 2018-05-13 22:41:13 +02:00
.defconfig arch: remove support for sh64 2016-09-08 22:15:15 +02:00
.flake8 .flake8: ignore utils/diffconfig 2018-03-13 22:37:54 +01:00
.gitignore
.gitlab-ci.yml .gitlab-ci.yml: update after removal of freescale defconfigs 2018-05-06 17:36:37 +02:00
.gitlab-ci.yml.in .gitlab-ci.yml: extend check-package test to Config.* files 2018-04-01 10:16:35 +02:00
CHANGES CHANGES: additional updates for 2018.05-rc1 2018-05-09 22:53:39 +02:00
Config.in Config.in: add BR2_HOST_GCC_AT_LEAST_8 2018-05-02 14:50:14 +02:00
Config.in.legacy package/mplayer: remove package 2018-05-09 21:36:14 +02:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
DEVELOPERS libidn2: new package 2018-05-20 16:01:28 +02:00
Makefile Update for 2018.05-rc1 2018-05-09 23:00:18 +02:00
Makefile.legacy Remove BR2_DEPRECATED 2016-10-15 23:14:45 +02:00
README

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches