The gcc man page states that specifying Neon as part of the fpu setting
has no effect, unless the -funsafe-math-optimizations is also specified,
because Neon is not compliant with IEEE 754:
```
If the selected floating-point hardware includes the NEON extension
(e.g. -mfpu=neon), note that floating-point operations are not
generated by GCC's auto-vectorization pass unless
-funsafe-math-optimizations is also specified. This is because NEON
hardware does not fully implement the IEEE 754 standard for
floating-point arithmetic (in particular denormal values are treated
as zero), so the use of NEON instructions may lead to a loss of
precision.
```
-funsafe-math-optimizations must be explictly specified per package to
really use NEON as FPU, but it's something that is left to the user as
well as setting BR2_ARM_FPU_NEON_VFPV4. This way the default
BR2_ARM_FPU_VFPV4D16 is used as previously. So let's revert the
offending patch.
This reverts commit 23329364e2.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Bump to Linux kernel 5.14.13 and u-boot 2021.10.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
For defconfigs that create a boot script, add the host package
uboot-tools and update the script variable names.
Add BR2_PACKAGE_HOST_UBOOT_TOOLS=y just before the existing
BR2_TARGET_UBOOT_BOOT_SCRIPT option. Note that for the defconfigs that
are not manually formatted (i.e. just the result of 'make
savedefconfig'), this puts them in the wrong place. However, it's easier
this way, and it's more consistent in general to have the definition of
the script close to BR2_TARGET_UBOOT itself.
Special cases:
- nanopi_* had the definition of the _SCRIPT variable in a weird place.
These are moved to close to BR2_TARGET_UBOOT.
- Same for orangepi_plus.
- orangpi_pc_* already had BR2_PACKAGE_HOST_UBOOT_TOOLS=y so it's not
added there.
Related to db2b684126
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The U-Boot configuration for the olimex_a33_olinuxino needs pylibfdt,
and therefore needs host-swig. Without this, the build fails with:
unable to execute 'swig': No such file or directory
error: command 'swig' failed with exit status 1
scripts/dtc/pylibfdt/Makefile:27: recipe for target 'scripts/dtc/pylibfdt/_libfdt.so' failed
Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/269139202
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This initial support includes:
u-boot v2019.04
Linux v5.0
Buildroot default packages
Signed-off-by: Shyam Saini <shyam.saini@amarulasolutions.com>
[Thomas: use BR2_TARGET_UBOOT_BOOT_SCRIPT to generate the U-Boot
script, instead of doing it in the post-build]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
