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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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We don't need the gcc wrapper when some object files
removed from libgcc.a. Idea from uClinux-toolchain build script.
Fix some issues with shared flat, still no bootup.
For msep-data DOPIC is used, for one-region flat DOPIC
must be disabled. So both tested and working.
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This works by using git as backend for all the dirty work. This means
that patches are not just applied, but committed separately on top of the
base sources (which are put into an initial commit). A final empty commit
marks the end of the applied patch series, which allows to have multiple
sets of patches to apply on top of each other. So a git history might
look like this:
- OpenADK patch marker: 0000
(this is the initial commit, containing the unpatched sources)
- patch 1 of series 1
- patch 2 of series 1
- patch 3 of series 1
- OpenADK patch marker: 0001
- patch 1 of series 2
- patch 2 of series 2
- OpenADK patch marker: 0002
In addition to the separating empty commits, for every patch series
metadata files are added (which are used for update-patches):
__patchfiles__: A list of the patches' file names
__patchdir__: The directory containing the applied patches
Since patches might have to be unzipped first and in order to allow
calling git-am just once for each patch series, the patches (along with
above metadata files) are cached in dedicated directories:
.git/patch_tmp/NNNN (where NNNN is the series number with leading zeroes
[so shell globbing returns them in the right order]).
In case update-patches is called later, update_patches.sh works it's way
reverse through the git history, searching for commits named 'OpenADK
patch marker: NNNN'. For each one it finds, it uses the metadata info to
first remove all source patch files, then export the history in between
using git-format-patch.
To change patches or add new ones, the user has to use git-rebase in
order to get things where they need to be for update_patches.sh to put
stuff at the right place. For an example, here is how to change patch 3
of series 1 in the sample history above:
- make desired code changes
- commit them, ideally using --fixup option
- call 'git rebase -i --autosquash <hash of OpenADK patch marker: 0000>'
Using --fixup and --autosquash is convenient, since it automatically
edits the rebase todo as intended. It's optional though, editing the todo
manually will do just fine as well.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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After the addition of bare metal toolchains the menu system allowed
to create non-valid configurations. I reworked it so we can also
add other operating system support if we wish.
So first you choose your operating system, then your architecture
and endianess, after that your embedded system, emulator or
generic device and then you choose your task you want to run.
Tasks may be toolchain, a new appliance/application or some preconfigured
sets of packages and configurations as kodi, mpd, firefox and more.
The tasks are limited to a plausible choice of hardware and software.
Deduplicate CPU configuration.
You don't wanna compile Kodi for a H8/300 microcontroller ;)
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Don't build C library with -ffast-math when NEON is globally enabled.
Disable NEON support by default.
Remove dangerous -funsafe-math-optimizations.
Most suggestions from Rich Felker after analyzing libc-test
failures in my setup.
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some packages
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The new prereq check is completely implemented in
POSIX shell in scripts/prereq.sh.
It combines the old features from Makefile, scan-tools.sh,
scan-pkgs.sh, reloc.sh and some wrappers for tools.
The big benefit is to have all portability stuff in one place.
Furthermore we can compile GNU make and bash on the fly, for
systems lacking the required tools.
All changes on the host are detected on the fly, no make
prereq required anymore.
The build process is separated in following three phases:
1. small wrapper Makefile is used for BSD make or GNU make
2. prereq.sh is called, doing all checking, calling Makefile.adk
3. old logic in Makefile.adk or mk/build.mk is used
Tested successfully on Linux, MacOS X, Cygwin, FreeBSD, OpenBSD
and NetBSD.
An old depmaker bug was fixed, only optional host tools are compiled.
For example, even when a host provides xz, a local xz was compiled
in the past, because other packages had a build dependency on it.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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OpenADK can now build bare-metal toolchains.
Tested for ARM/MIPS. No runtime testing, yet.
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Some no-MMU targets need uclinux in its triple, some
not. Introduce a new symbol for noMMU to select
correct software and configuration instead of using
UCLINUX symbol.
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As mentioned by Phil, a lot of disk space is needed nowadays
to build OpenADK. Switch to non debug builds as default to
save 2 GB for each default build.
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malloc needs to be fixed for linuxthreads in uClibc-ng git.
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gcc uses for some architectures --with-cpu, with others
--with-arch. Add two different symbols for that.
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For better maintenance, rework hardware model specific
CFLAGS. Work in progress, needs moe testing.
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