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This patch adds the posibility to build using TCLIBC=newlib.
It allows users to build baremetal applications with the use of a
C library.
Newlib is a lightweight C library meant to be used on embedded systems,
it is meant to be easily portable for new platforms and to provide
basic functionality on them, by design, it provides stubs for some of
these core functions declared as weak, so they can be built correctly
and then linked against some other library which provides specifics
about the platform being used if need be, libgloss takes care of these
in some cases, but it can also be extended, this patch also allows the
user to easily add other libraries to it by adding them to
NEWLIB_EXTENDED for this specific reason.
Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com>
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SDKPKGSUFFIX could only really be "nativesdk" and TARGET_SYS never contains
that so the code manipulating TARGET_SYS is pointless. I suspect this once
worked against MULTIMACH_TARGET_SYS which would be a different question but
it no longer does. Its been cut and pasted everywhere.
This patch cleans up the variable references to make things a little more
readable.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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When we stashed the gcc build directory for use in generating the various runtimes
we were being lazy and just used the staging directory. With recipe specific
sysroots this means we're copying a large chunk of data around with the cross
compiler which we don't really need in most cases.
Separate out the data into its own task and inject this into the configure
step. We have to do that here since autotools will wipe out ${B} if it thinks
we're rebuilding and we therefore have to time its recreation after that.
This also takes the opportunity to remove some pointless (as far as I can tell)
conditionals from the do_install code.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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nativesdk-libgcc doesn't need a symlink into the target space and if we do this
sstate installation of the recipe can fail depending on whether it races with
the cross-canadian toolchains.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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getVar() now defaults to expanding by default, thus remove the True
option from getVar() calls with a regex search and replace.
Search made with the following regex: getVar ?\(( ?[^,()]*), True\)
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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This patch fixes broken "32" symlinks for multilib settings:
MACHINE = "qemuarm64"
require conf/multilib.conf
MULTILIBS = "multilib:lib32"
DEFAULTTUNE_virtclass-multilib-lib32 = "armv7a"
and
MACHINE = "qemux86-64"
require conf/multilib.conf
MULTILIBS = "multilib:libx32"
DEFAULTTUNE_virtclass-multilib-libx32 = "x86-64-x32"
[YOCTO#8642]
[YOCTO#10380]
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Arm is unusual in that we force it to "linux-gnueabi" and "linux" doesn't
build. This was causing problems for multilib configurations which were assuming
"linux" was the default compiler rather than linux-gnueabi.
This change does two things, ensures symlinks are generated for linux-gnueabi
and also adapts the libgcc code to account for the difference on arm.
It still needs to immediately expand/save TARGET_VENDOR but we defer
deciding what TARGET_OS should be until we know TARGET_ARCH (which the
multilib code may change).
[YOCTO #8642]
Note that sanity tests of a 32 bit arm multilib still break due to issues
with the kernel headers on a mixed bit system. This looks to be a general
headers issue for the platform though and a different type of bug.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The original fix [1] was made redundant by the followup [2].
[1] http://git.openembedded.org/openembedded-core/commit/?id=d774bb2d10f2c05900f87dcc53f073433ca02121
[2] http://git.openembedded.org/openembedded-core/commit/?id=d7799a17d5e802db3f8d16bdc824aae81538e675
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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libgcc uses certain options from EXTRA_OECONF as well, curently we are
ignoring them, as a result we do not configure libgcc to match cross gcc
in some cases e.g. ppc/musl should have used 64bit long doubles but
it went for 128-ldbls which is default, works on glibc but not on musl
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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libgcc uses certain options from EXTRA_OECONF as well, curently we are
ignoring them, as a result we do not configure libgcc to match cross gcc
in some cases e.g. ppc/musl should have used 64bit long doubles but
it went for 128-ldbls which is default, works on glibc but not on musl
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The absolute path (/path/to/configure) caused __FILE__ to be
an absolute path.
If 'assert' invoked, it uses __FILE__, and build path would be in elf files.
In assert.h
...
.# define assert(expr) \
((expr) \
? __ASSERT_VOID_CAST (0) \
: __assert_fail (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION))
...
Which triggered buildpaths QA issue:
...
| libgcc-5.3.0: File work/core2-64-poky-linux/libgcc/5.3.0-r0/packages-split/
libgcc-dev/usr/lib64/x86_64-poky-linux/5.3.0/libgcc.a in package contained
reference to tmpdir [buildpaths]
...
Use relative path to run configure can fix the problem.
[YOCTO #7058]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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Added TCLIBC="baremetal" specific overrides.
(From OE-Core rev: 044f989b34e46f919e6b28860d7a1b396b2c3808)
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The symlink being generated needs to match both the current arch (e.g. mips
or mips64) but also use the underlying TARGET_SYS without multilib extensions
to TARGET_VENDOR or extensions to TARGET_OS.
The way multilib changes TARGET_VENDOR meant this code did not have
a way of removing that change. The method of removing some TARGET_OS
suffixes was also not working.
By using immediate expansion to run this code, we can run before the
multilib code changes it and get the original values.
We then use the *current* TARGET_ARCH value in case this does get changed
by the multilib since we need to point at the right compiler (32 bit one
for 32 bit code).
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Without the fakeroot flag the two tasks may create files or
symbolic links that end up being owned by the user and not
root:root as expected.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
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The current implementation of shared work for gcc is at best confusing. It relies
on the fetch/unpack/patch tasks having exactly the same stamps and if this gets
broken for some reason, its hard to figure out what the problem is. It also
leads to complex code in bitbake.
The benefits of shared work for gcc are clear but a better approach is needed. This
patch adjusts things so that a single new recipe (gcc-source) provides the
fetch/unpack/patch/preconfigure tasks, the rest of gcc simply depends on these tasks
and have no fetch/unpack/patch tasks of their own.
This means we should get the significant benefits (disk usage/performance) of the
single source tree but in a way which has less potential for problems and is
easier for people to understand. The cost is an extra recipe/some inc files
which is probably a good tradeoff.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This allows them to co-exist together in the native sysroot, with one
set of cross tools per target architecture.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Rather than building the whole of libgcc to obtain the unwind.h header
file, simply configure it and then install the file. This avoids copying
chunks of data around when we don't need to and building the same thing
twice.
After doing this we need to make sure the target build directory exists
in the libgcc case since it will no longer be created automatically.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Prepare the ground for the creation of libgcc-initial by splitting common
libgcc code into a libgcc-common.inc file.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Alejandro Enedino Hernandez Samaniego
Richard Purdie
Joshua Lock
Juro Bystricky
Andre McCurdy
Khem Raj
Hongxu Jia
Mark Hatle