Similar to commit 57679b5e ("Disable context functions for Thumb") when
building for thumb we need to unset UCLIBC_HAS_CONTEXT_FUNCS.
Fixes#1397
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Since glibc 2.27 glob interface was changed [1] and so
"glob" & "glob64" symbols require glibc 2.27+.
For us that means if we build Binutils on a machine with glibc 2.27+
produced binaries won't be any longer usable on machines with older
glibc.
As an example [2]: build on Ubuntu 18.04 (with glibc 2.27) and try to run
on CentOS 7.x (with glibc 2.17), you'll see this:
---------------------->8-------------------
ldd ld
ld: /lib64/libc.so.6: version `GLIBC_2.27' not found (required by ld)
---------------------->8-------------------
Now given glob is not really used by Binutils itself (only needed by GDB)
and we build Binutils & GDB separately let's make at least Binutils
more portable.
In theory we may even try to do the same hack for GDB forcing it to use
imported glob implementation. But since GDB is now built strictly by C++
compiler we'll get waaay to many incompatibilities due to multiple changes
of C++ ABI in between GCC 7.5 of Ubuntu 18.04 and GCC 4.8.5 of CentOS 7.x,
so there's no point to even try.
[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=ccf970c7a77e86f4f5ef8ecc5e637114b1c0136a
[2] https://github.com/zephyrproject-rtos/sdk-ng/issues/280
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
While building a canadian toolchain for windows host (any target),
the build failed for m4 host companion_tool with a recent mingw-w64
(at least 7.0.0).
m4 needs stack smashing protection which is not part of mingw-w64 c
library and an explicit trigger to link w/ libssp is needed.
Signed-off-by: Florent Valette <florent.valette@gmail.com>
By setting glibc build system default_cflags to be empty before
building, we will enforce the build system to only use the crosstool-ng
CFLAGS when building glibc.
Properly solves the issue identified in #1396.
Signed-off-by: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>
picolibc is another bare-metal C library, and so should be mapped
to CT_TARGET_SYS just like newlib does.
Signed-off-by: Keith Packard <keithp@keithp.com>
This adds support for using picolibc instead of newlib on embedded
systems.
Signed-off-by: Keith Packard <keithp@keithp.com>
v2:
Add check for meson and ninja
Sync option default values with current picolibc defaults
Remove xtensa sys header file install as those aren't in picolibc
This commit updates the GDB build script to specify `-static-libgcc`
when `CT_GDB_NATIVE_STATIC_LIBSTDCXX` is enabled. Both libgcc and
libstdc++ are considered to be part of the "standard libraries," and
should be specified by the same flag (the configuration symbol could
potentially use a better name and/or further indirection).
This also semantically aligns the `CT_GDB_NATIVE_STATIC_LIBSTDCXX`
with the equivalent GCC configuration `CT_CC_GCC_STATIC_LIBSTDCXX`,
which also enables static linking of both libgcc and libstdc++.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit fixes an incorrect reference to the configuration
`CT_GDB_NATIVE_STATIC_LIBSTDCXX` in the GDB build script.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
-- c6x: Add support for c6x product families to pass on to uClibC-ng
-- c6x: Fix multilib support
-- c6x: Add patch fix internal instruction error (GCC 57295)
Signed-off-by: Dan Tejada <dan.tejada@cantada.com>
GLIBC 2.31 needs --with-cpu=ultrasparc for both 32/64-bits now, and
--with-cpu only sets the CPU model for the "primary" bitness.
Signed-off-by: Alexey Neyman <stilor@att.net>
This commit adds support for the newlib configuration option
'--enable-newlib-retargetable-locking'.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
I was trying to build static binaries for a range of Broadcom soft-float ARMv7
SoCs and kept getting SIGILL, although I was targeting Cortex A7 (and A5,
later), even on A9 and A15.
I found out that once I add -msoft-float, +mp+sec is to blame:
Attribute Section: aeabi
File Attributes
- Tag_CPU_name: "7VE"
+ Tag_CPU_name: "7"
Tag_CPU_arch: v7
- Tag_CPU_arch_profile: Application
- Tag_ARM_ISA_use: Yes
Tag_THUMB_ISA_use: Thumb-2
Tag_ABI_PCS_wchar_t: 4
Tag_ABI_FP_rounding: Needed
@@ -12,8 +10,5 @@ File Attributes
Tag_ABI_FP_number_model: IEEE 754
Tag_ABI_align_needed: 8-byte
Tag_ABI_enum_size: int
Tag_ABI_optimization_goals: Aggressive Size
Tag_CPU_unaligned_access: v6
- Tag_MPextension_use: Allowed
- Tag_DIV_use: Allowed in v7-A with integer division extension
- Tag_Virtualization_use: TrustZone and Virtualization Extensions
(This is the readelf -A diff, before and after armv7-a+nofp -> armv7+nofp).
I kept getting SIGILL even after building my application with a toolchain built
with the correct CFLAGS and found out that crosstool-ng doesn't pass the host
CFLAGS when building musl, which pollutes my binary with these ARMv7 extensions.
Signed-off-by: Dima Krasner <dima@dimakrasner.com>
The glibc will append the content of the CFLAGS variable,
overriding previous flags.
If unset, the CFLAGS variable is not empty, so explicitly set it.
Instead prepend the default CFLAGS flags.
Signed-off-by: Norbert Lange <nolange79@gmail.com>
Fixes: #887
On some systems the file command identifies a pie executable as a shared
object. Update do_finish() to handle this case so that they are stripped
as well.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
From GCC's standpoint ARC's multilib items are defined by "mcpu" values
which we have quite a few and for all of them might be built optimized
cross-toolchain.
From Glibc's standpoint multilib is just multi-ABI [1] and so very limited
versions are supposed to co-exist (e.g. arc700 & archs).
Here we force Glibc to install libraries in GCC's multilib folder to create
a universal cross-toolchain that has libs optimized for multiple CPU types.
But note we only need to mess with installation paths in case of real
multilib, otherwise we keep default "lib/" paths so that GCC finds default
(the one and only) libs where it expects them to be.
Also here we add a sample which allows to build universal Glibc Linux
toolchain for ARC.
[1] https://sourceware.org/ml/libc-alpha/2019-06/msg00018.html
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
... resulted in an attempt to build libinproctrace.so whenever any
of the {gdbserver, native gdb} was enabled.
Signed-off-by: Alexey Neyman <stilor@att.net>
uclibc_backend_once tries to build dummy shared libraries regardless of
whether shared libraries support for target is enabled or not, resulting
in build failure in noMMU bFLT configuration.
Only build dummy shared libraries when shared library support for target
is enabled.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
scripts/build/kernel/linux.sh only provides suffix to known
architectures when building toolchain targeting noMMU linux.
Add support for xtensa and assign uclinux suffix to it.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
... when it is compiled without the native GDB.
Also, fix the gdbserver to be installed without a program prefix in this
case, as it was before the unification of the GDB backend.
Signed-off-by: Alexey Neyman <stilor@att.net>
- Force building make as a companion tool if host make is older than
4.0 (CentOS 7 currently has 3.82)
- Disable 2.29 as a choice if host python is older than 3.4
(CentOS 7 has 2.6 unless python from EPEL is installed)
- Python2 emits its version information to STDERR. Ugh.
While there, also use the detected host Python for GDB configuration.
Signed-off-by: Alexey Neyman <stilor@att.net>
This fixes following build error on Debian 9:
configure: error: Your local docbook2man was found to work with SGML rather
than XML. Please install docbook2X and use variable DOCBOOK_TO_MAN to point
configure to command docbook2x-man of docbook2X.
Or use DOCBOOK_TO_MAN="xmlto man --skip-validation" if you have xmlto around.
You can also configure using --without-docbook if you can do without a man
page for xmlwf.
Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
uClibc-ng 1.0.31 enabled FDPIC as an option for ARM/no-MMU
configurations and defaults to that option if not set explicitly.
Signed-off-by: Alexey Neyman <stilor@att.net>
... in the backend function with ${CFLAGS_FOR_HOST}. The caller either
supplies them already, or (in case of pass-1/2 of the canadian cross)
passes ${CFLAGS_FOR_BUILD} there.
Signed-off-by: Alexey Neyman <stilor@att.net>
Otherwise, glibc 2.29 tries to use it - but we haven't built libstdc++ yet.
We really need to implement #808... Until now, pass empty CXX to make.
Signed-off-by: Alexey Neyman <stilor@att.net>
... which, after a recent change, is not reflected into CT_ALL_TARGET_CFLAGS
for non-multilib configurations.
Signed-off-by: Alexey Neyman <stilor@att.net>
... parts of the config tuple. While here, remove parts that are
setting portions of the target tuple to a value that's already
the default.
Signed-off-by: Alexey Neyman <stilor@att.net>
... in uClibc and glibc.
Fixes#681.
While here, relocate additional "sources" for uClibc/binutils into packages/
directory.
Signed-off-by: Alexey Neyman <stilor@att.net>
This required some rework of the libc selection, as moxiebox is a layer on
top of another libc - newlib.
Also, moxiebox'es host VM (`sandbox`) needs a libcrypto on the host. We will
not have it if we're cross-compiling a canadian cross. Fortunately, all moxiebox
needs from libcrypto is SHA256, and it already includes a standalone implementation
of SHA256 in its runtime. Provide a little wrapper that allows moxiebox use
that implementation for the host binary, too.
Also, automate collecting/printing the list of all packages in a given category
(e.g. LIBC or COMP_TOOLS), generate a list of all Kconfig symbols for a given
category.
Signed-off-by: Alexey Neyman <stilor@att.net>
... and use that ability to permanently set CTNG_LD_IS in case gold is default linker
and we're building glibc.
Fixes#988. This was a long-standing breakage in crosstool-NG (at least since it began
to run each step in a sub-shell).
Signed-off-by: Alexey Neyman <stilor@att.net>
There is a subtle difference when executable bit is a part of the umask.
And at least some versions (Debian/stretch) fail if the resulting mode
would've been different if not for the umask setting.
Fixes#998.
Although, with such chmods/umasks it is likely that some package installation
will break anyway. But I'll leave it until somebody complains.
Signed-off-by: Alexey Neyman <stilor@att.net>
Modify CT_TARGET_CFLAGS (which are passed to GCC's FOR_TARGET flags) rather
than CT_ALL_TARGET_CFLAGS.
Fixes#1006.
Signed-off-by: Alexey Neyman <stilor@att.net>
They're written in ARM dialect, and `ldmia r14, {r14, pc}` is not accepted in T2
encoding. GCC8 changed the list of multilibs for arm-*, which now includes a
variant with CPU that supports T2 but not A1 encoding.
Signed-off-by: Alexey Neyman <stilor@att.net>
In case we build for ARC core which has no support of atomic ops among
other things we need to configure libc to use Linux kernel helper to emulate
HS atomic ops. This is done with disabling of CONFIG_ARC_HAS_ATOMICS in uClibc.
Currently we __remove__ this option from .config but this makes no sense as
its default state is "y" so we need to explicitly disable it instead.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Synopsys' DesignWare ARC Processors are a family of 32-bit CPUs
that SoC designers can optimize for a wide range of uses,
from deeply embedded to high-performance host applications in a variety
of market segments.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
- Incompatible function type for ifunc alias
- Multiple statements macro expansion in strftime
- if_nametoindex size checking
Signed-off-by: Alexey Neyman <stilor@att.net>
