This reverts commit 89798bcb0c.
Disable building gnat again as it turned out that many distros don't
ship with a sufficient recent version of gnat. We'll have to find a
reliable way to check for the installed gnat version and query the
user or bootstrap gcc in that case.
Change-Id: Ife7cf7c9d1567aca898ce308b120a7b9e146e5f5
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/13422
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
I thought we'd be using gnatmake but it's deprecated. Who needs it
anyway?
Change-Id: Ic08add72e771fa346c8a736ea901863ea5737d91
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/13041
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Instead of printing out a single tool that needs to be installed
each time buildgcc is run, print out the entire list of tools
to be installed, then halt.
Change-Id: I7761760eef3c45ba371f882a4f987408945bb3e5
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12856
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Previously, when we tested for g++ and two different versions of clang,
if the earlier versions were not found, buildgcc would still request
that they be installed. This obviously isn't needed, and isn't the
desired outcome.
Now, if one of the first tests fails, nothing gets printed. If all
the tests fail, it tells you to install either g++ or clang.
Change-Id: I71359f59c4c6bee3c3c55e4e6105f11e6ca51527
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12852
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This reverts commit 68d0e4a5a1.
Special handling of MPFR is no longer needed with the latest
MPFR release.
Change-Id: I96d9ea92cfb74eed6af2ba62254f0678081e2b4f
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12833
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The current MPFR version contains a stale config.guess file
that requires special handling on ppc64el systems. Bump
the MPFR version to the latest release.
Change-Id: I5e86c732c09f8a6a43f9812452124d64d337ea3f
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12832
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The config.guess file included with MPFR is completely obsolete,
leading to build failures on ppc64el due to the system architecture
not being detected. Regenerate the files from the host system via
automake before attempting to build MPFR.
Change-Id: I00fc16003906e373d112c25978197ac907adccfd
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12816
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The previous official GMP release (6.0.0) contains a bug that
prevents compilation on ppc64el systems. Increase version
to the latest version (6.1.0).
Bug details:
gcc build on ppc64el fails with:
(.text+0x4c): undefined reference to `BMOD_1_TO_MOD_1_THRESHOLD'
While I don't have an exact commit hash due to Hg use upstream,
a missing BMOD_1_TO_MOD_1_THRESHOLD define on ppc64el was quietly
fixed in Hg before the 6.1.0 release.
Change-Id: I1c05a1c194141db5f8522148c2e20e7558d34714
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12811
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
clang version now returns:
coreboot toolchain v1.33 November 25th, 2015 clang version 3.6.1
(tags/RELEASE_361/final) (based on LLVM 3.6.1)
Change-Id: I948d7f4d06c244987342cfc7d5c7e728cbed93bd
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12777
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Add the coreboot toolchain version to iasl's version output.
% ./xgcc/bin/iasl -v
Intel ACPI Component Architecture
ASL+ Optimizing Compiler version 20150619-64
Copyright (c) 2000 - 2015 Intel Corporation
coreboot toolchain v1.33 November 25th, 2015
This won't actually be checked until the next version of
iasl so that we don't have to rebuild again for no reason.
The buildgcc version was intentionally not incremented for
this minor change.
Change-Id: I03a1a777fdb84e34bfceb7b1eb43fffbc1f3a2fc
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12688
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
By adding the version number of tools, we can help people keep up to
date with their tool versions. This will be used now to determine
whether the IASL version being used is the version supported by
coreboot.
Change-Id: I24a68b01c819871f90403869570125e71b96bd70
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12545
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
- Only build IASL once for the 'all' targets instead of once for each.
- Change the control of what gets built from different targets to
variables on the build line.
- Clean up and correct the list of phony targets
- Don't keep the temporary files around while building all. This
takes up a lot of space. If it's desired behavior, add
BUILDGCC_OPTIONS=-t on the make command line.
- Add comments about CPU= and BUILDGCC_OPTIONS= variables
- Add KEEP_SOURCES option
Change-Id: I7752974e249f25717b42be25a841c69af84d5c69
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: http://review.coreboot.org/12300
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The buildgcc makefile was using the variable 'BUILDJOBS' to pass the
number of cores to use for the build into buildgcc. This is changed
to 'CPUS' to match the variable name for the what-jenkins-does target.
Change-Id: I373c4988e9f096ca2e142afdd5e94d7d806891e3
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: http://review.coreboot.org/12299
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.
This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.
Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The binutils-2.25 has added some new line, making the hunk
move downward a little. The utility patch can fix the offset
with "fuzz" message. So, recreate the patch to avoid that
message.
Change-Id: Ie659a8faf923465f6d47f7c0c0bf903c5eb903ab
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11639
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Clang is the default compiler on BSD and OS X. With this
change, we don't have to install gcc any more. Clang can
act as host cc.
This is a known issue on GNU mail list. Please refer
the link below.
https://sourceware.org/bugzilla/show_bug.cgi?id=17473
Change-Id: I0f014b776e86e6d0cbebd560cb17f469f31e1dfb
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11638
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Grep the output of wget, showing only the percentage.
Leave the final "100%" unerased.
Checking return code of wget is removed.
Change-Id: I4559e88d541738a594dce92e23589992f234cb9b
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11520
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
As with most other languages, a pre-installed Ada toolchain is needed
to build gcc's Ada frontend. To support building with older host tool-
chains, the patch `gcc-5.2.0_gnat.patch` disables warnings for unknown
pragmas. Building has been tested with host gcc-4.9 and hopefully works
with newer versions, too.
For convenience, the gnattools (e.g. gnatmake etc.) will be build if
'ada' is specified as a target language.
Change-Id: Ia78c29d1aba2943de5238421a324cfff8eb08875
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/11590
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add an option `--languages` which takes a list of target languages to
buildgcc. That list gets passed through to the configure step for
building gcc.
Also alter the Makefile to pass $(BUILD_LANGUAGES) to that option, if
this variable is set.
Change-Id: I6a74ab2c75871ea8d03a499cca33d88938b59c8d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/11589
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Change-Id: Ie3a44c6db9c9c186c52b4743334266ec5411ba8a
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11472
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Change-Id: I9f59a00e735f39df813b2216290da62eea3c595d
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11372
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Refactor the code to be better understandable.
Change-Id: Ia815a27f7cc83c226a32e87485d712a5fbf4168e
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11318
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Some patch implementations (eg. BSD) create new files by taking the "---" file
name instead of the "+++" one, so set both to the file name that is to be
created.
Change-Id: I6f37748b4cf0852d292f8f5156fc27ab8fd481b6
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reported-by: Idwer Vollering <vidwer@gmail.com>
Reported-by: Jonathan A. Kollasch <jakllsch@kollasch.net>
Reviewed-on: http://review.coreboot.org/11303
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
It still needs to pass --32 (yes, 32) to the assembler.
x86_64-linux does this (through some other config file),
x86_64-elf did not.
This fixes building SeaBIOS with our x86_64-elf multilib compiler.
Change-Id: Ibe2a70e46e64e71c947482be5ec0eaf7f7bf300d
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/11289
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
All compilers built, incl. x86_64-elf as multilib and riscv-elf.
Change-Id: Iafa61b1d2ffc9c737ab67a417c62417593b69372
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/10975
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1. Add -P|--package to build iasl
2. Remove -G|--skip-gdb, which was to skip gdb.
3. Add -S|--scripting to build gdb
4. Remove -C|--clang, which was to build clang.
All these changes are aligned with the options parsing below.
The help text is correct.
Change-Id: I897ea5e8ab002086e45bf05ff33230815b246057
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11158
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Similar to what the below change says,
(
http://review.coreboot.org/10792
commit ddb8f80894
Author: Patrick Georgi <patrick@georgi-clan.de>
Date: Sat Jul 4 17:45:54 2015 +0200
buildgcc: Deal with gmp on 32bit Linux on 64bit CPUs
GMP is overeager to detect 64bit ABIs even if the entire running codebase is
32bit (but on a 64bit CPU). Enforce a 32bit build in that situation.
)
building GMP can not detect Cygwin is 32bit either if the
host which Cygwin is running is 64bit. We set ABI=32
in that case.
Change-Id: Ic53d75defebbe902325eb07f3d8631b2a53245ef
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11123
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Running `uname` on Cygwin gets "CYGWIN_NT-6.1-WOW" instead of "Cygwin".
We need to fix the $UNAME on Cygwin.
Change-Id: I540bfc52089951006fd0e20bb9893a3d891df9e1
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11124
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
It doesn't know "source", but wants the older "." instead
Change-Id: Iafa61b1d2ffc9c737ab67a417c62417593b69374
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/10974
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
In case of downloading errors, the URL is handy for analyzing the cause.
Change-Id: I6874cdc3c881cfdd52c80f80323536c30723654b
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/10853
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <gaumless@gmail.com>
The script `util/crossgcc/buildgcc` was rewritten in commit 85b07d68
(buildgcc: move to a package centric user interface) and the switches
changed. This patch does the following:
- IASL was split out of the gcc builds, so needs a target of its own.
- Add clang build target
- Update the build-ARCH targets as buildgcc -G no longer builds gcc.
- Rework all the targets to use common targets to call buildgcc
- Split the tempfile clean from the regular clean
- Change the 'all' target to leave the tempfiles until all architectures
are built so that if one fails and needs a rebuild, it doesn't have to
start from scratch.
- Add an all_without_gdb target
- Add clang build to all
Change-Id: I4ff720eab6d9b72d00757fd2b632e6d9a6c25aa3
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10679
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Running "clang -target i386-elf --print-librt-file-name" prints
[..]/bin/../lib/clang/3.6.1/lib/libclang_rt.builtins-i386.a
However, the correct path is [..]/lib/linux/libclang_rt.builtins-i386.a
on a Linux host. Hence, create symbolic links to make sure that our
build system finds the file where it expects it.
Change-Id: I21ef5c4a690d83c326717ca55c5ace558257a0ec
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10815
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
GMP is overeager to detect 64bit ABIs even if the entire running codebase is
32bit (but on a 64bit CPU). Enforce a 32bit build in that situation.
Change-Id: I23e9e57f3c8b0e3ad2e4e1e3eb106f7830aa76a1
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/10792
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
I looked for a way to pass the 'make crossgcc -j8' on to buildgcc, but
didn't find a way to get that value directly. MAKEFLAGS turns -j8 into
a jobserver variable.
Instead, this patch allows the number of CPUs to be set on the command
line through a variable instead.
Example: 'make crossgcc BUILDJOBS=8'
Change-Id: I37608cdb4549226cb7ff8c3ff6d9f4773acf6b0b
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10620
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Update the clean target to remove the intermediate files. These should
get removed automatically, but if the build stops in the middle, or if
the -t command is used for buildgcc, they can be left in the directory.
Add a distclean target that removes the downloaded tarballs as well as
everything else.
Change-Id: I6ea19e7a499b0c313c1d2eff7e36386204ec834e
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10621
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
buildgcc fails if g++ or clang isn't found on the host. This
was failing on OSX due to the string used to check for clang
doesn't match "Apple LLVM". Add an additional search string for
clang "LLVM".
Change-Id: I05e36cfc690061b3233376d57f44f197cab933ea
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/10569
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
There's a separate target -P iasl for that now.
Change-Id: I95c0fe8fc266859d8a31b7bea890775dc9f19694
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10567
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
With this change, the x86_64-elf-gcc can compile i386-elf
binaries by specifying -m32. The patch against GCC is needed
to enable building the 32bit libraries when building x86_64-elf-gcc
Change-Id: Ic86a009eccfdf3e33a398bcdcc13b15c8dfc0d31
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10497
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
For consistency in user output, move the check for all
required utilities after printing the banner and parsing
options.
Change-Id: I5bf31368885c73e35f18b02d53d099f3f3871acc
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10566
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
When required tools are missing, try to give the user more detailed
information on how to solve the problem.
Change-Id: Ifa21c1af38a036a7d4f5a786041a87a7d45f4ec5
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10555
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This moves the CMAKE definition down into the case statement
for $PACKAGE so that it is only required when the user wants to
build clang.
With this approach, "./buildgcc -P clang" will error out with the
"ERROR: Missing tool:" message if cmake is not installed.
Change-Id: I1e5c1bd67ade8f93ba0390df7f234deb47b9b18a
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/10556
Tested-by: build bot (Jenkins)
Reviewed-by: Francis Rowe <info@gluglug.org.uk>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The precise phrase returned by 'type' differs between locales and shells.
It also doesn't matter because it returns an error code when it hasn't found a
match.
Let's simply assume there's no build_$OneOfOurPackages commands around that
could also match.
Change-Id: I44f021243149701e8da9dd74c368ca2ad4509419
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Tested-on: linux bash, linux dash, solaris sh, solaris ksh.
Reviewed-on: http://review.coreboot.org/10517
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
using grep is an extra process invocation, but it's not a bashism.
Also match precisely, so AGCC doesn't trigger on GCC (we don't have collisions
right now, but we won't have to deal with them in the future)
Change-Id: I242833c350b7f1e6a6793f288c1aae0b50d57a26
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10518
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Build with bfd and gold linker, but use bfd linker per default
and make sure that lto is enabled in both binutils and gcc
Change-Id: I0584396b4580674cfdca24fbed0d8eeb1ee38806
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10496
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>