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John Keeping 408bc354a9 toolchain/toolchain-wrapper: let recent GCC handle SOURCE_DATE_EPOCH
When using precompiled headers, changing any macros defined on the
command line will invalidate the precompiled header.  With
toolchain-wrapper adding __DATE__ and __TIME__, any commits to Buildroot
will invalidate incremental builds regardless of whether the precompiled
header actually uses those values (affecting _OVERRIDE_SRCDIR).

GCC-7 and later support SOURCE_DATE_EPOCH and use it to define __DATE__
and __TIME__ internally, avoiding any impact on precompiled headers.

Disable the custom handling in toolchain-wrapper if GCC is version 7 or
newer.

Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2020-06-27 17:19:53 +02:00
arch arch/Config.in: add BR2_ARCH_NEEDS_GCC_AT_LEAST_10 2020-06-24 21:57:43 +02:00
board board/qemu/sh4-r2d: fix sh4 kernel bug with binutils 2.33 2020-06-24 22:40:55 +02:00
boot boot/opensbi: bump to version 0.8 2020-06-24 21:29:18 +02:00
configs configs/qemu_*: bump kernel version to 5.4.42 2020-06-24 23:06:20 +02:00
docs docs/manual/adding-packages-generic.txt: fix typo 2020-06-06 21:28:31 +02:00
fs fs: squashfs: Add config option to pass nopad parameter to mksquashfs 2020-06-17 23:01:23 +02:00
linux legacy: drop options removed more than 5 years ago now 2020-06-22 07:17:05 +02:00
package package/lttng-{libust, tools}: use proper systemd rundir 2020-06-27 16:44:35 +02:00
support support/scripts/pkg-stats: remove debug cruft 2020-06-18 23:30:52 +02:00
system package/systemd: make sure init choice and package have same dependencies 2020-04-05 20:33:36 +02:00
toolchain toolchain/toolchain-wrapper: let recent GCC handle SOURCE_DATE_EPOCH 2020-06-27 17:19:53 +02:00
utils utils/scancpan: use two spaces indentation in hash file 2020-03-15 23:17:46 +01:00
.defconfig arch: remove support for sh64 2016-09-08 22:15:15 +02:00
.flake8 .flake8: fix check for 80/132 columns 2019-04-10 12:31:33 +02:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
.gitlab-ci.yml support/testing: add python-gpiozero test 2020-06-18 21:45:00 +02:00
.gitlab-ci.yml.in gitlab.yml.in*: enable Qemu gitlab testing 2020-04-13 21:51:13 +02:00
CHANGES Update for 2020.02.3 2020-06-04 11:10:45 +02:00
Config.in Config.in: drop BR2_NEEDS_HOST_{JAVAC,JAR} 2020-03-03 23:55:48 +01:00
Config.in.legacy legacy: drop options removed more than 5 years ago now 2020-06-22 07:17:05 +02:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
DEVELOPERS package/libnpupnp: new package 2020-06-23 23:19:03 +02:00
Makefile Make: simplify locales whitelisting 2020-06-18 22:15:36 +02:00
Makefile.legacy Remove BR2_DEPRECATED 2016-10-15 23:14:45 +02:00
README README: add reference to submitting-patches 2016-02-01 19:16:08 +01:00

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