This adds another mode to do_gcc_core_backend that builds libstdc++
against an alternate libc implementation.
Signed-off-by: Keith Packard <keithp@keithp.com>
Use LIBC_PICOLIBC_CXA_ATEXIT to keep this name in the same 'namespace'
as the other picolibc config names.
Enable retargetable locking by default. This allows the few locks in
picolibc to be implemented by the execution environment, rather than
disabling the locking code.
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit adds support for the following Oracle products, in order
to target Oracle Linux 7.9:
Binutils 2.27-44.base.0.400
GCC 4.8.5-44.0.5
glibc 2.17-317.0.3
UEK5/u4 4.14.35-2025.400.8
Sample configuration files are provides for the following triplets:
arm-ol7u9-linux-gnueabi
arm-ol7u9-linux-gnueabihf
Signed-off-by: Egeyar Bagcioglu <egeyar.bagcioglu@oracle.com>
Signed-off-by: Jose E. Marchesi <jose.marchesi@oracle.com>
Currently the help for LOCAL_PATCH_DIR did not specify the tree layout
of custom patches directory. This commit adds such explanation.
For example, the bundled patches for GCC are placed under
packages/gcc/<gcc-version>, thus custom (local) GCC patches should be
placed under $LOCAL_PATCH_DIR/gcc/<gcc-version>.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Make --enable-obsolete-rpc conditional on !CT_GLIBC_2_32_or_later as
it's been removed from that version on.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
When building powerpc64+glibc-2.32 we see the following error:
[ALL ] In file included from ../sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy-ppc32.c:26,
[ALL ] from ../sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c:18:
[ALL ] ../string/wordcopy.c: In function '_wordcopy_fwd_aligned':
[ERROR] ../string/wordcopy.c:98:26: error: 'a1' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ALL ] 98 | ((op_t *) dstp)[0] = a1;
[ALL ] | ~~~~~~~~~~~~~~~~~~~^~~~
[ALL ] In file included from ../sysdeps/powerpc/powerpc64/power4/../../powerpc32/power4/memcopy.h:38,
[ALL ] from ../sysdeps/powerpc/powerpc64/power4/memcopy.h:1,
[ALL ] from ../string/wordcopy.c:23,
[ALL ] from ../sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy-ppc32.c:26,
[ALL ] from ../sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c:18:
[ALL ] ../string/wordcopy.c: In function '_wordcopy_fwd_dest_aligned':
[ERROR] ../sysdeps/generic/memcopy.h:72:61: error: 'a3' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ALL ] 72 | #define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
[ALL ] | ^~
This seems to only trigger for powerpc64. Other architectures build
cleanly. For now avoid specifying -Werror for powerpc64+glibc-2.32.
Signed-off-by: Chris Packham <judge.packham@gmail.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
-- 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>
Fixes: #1210
Per the release notes for the GNU C library 2.28[1] make 4.0 or newer is
required. Previously the logic was applied to glibc 2.29 or newer.
[1] - https://www.sourceware.org/ml/libc-alpha/2018-08/msg00003.html
Signed-off-by: Chris Packham <judge.packham@gmail.com>
While we may use build machine's library when building a simple cross,
we won't have it for the host machine in a canadian build. Until there
are separate selectables for the build/host components, just build our
own local zlib.
Signed-off-by: Alexey Neyman <stilor@att.net>
... unless one retrofits it with a decent compiler instead of stock
GCC 4.4.
While here, sync up the ax_*.m4 with autoconf-archive.
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>
... unless experimental. This unbreaks m68k-uclinux-uclibc sample which
after the recent change in uClibc.sh attempted to build a shared flat
library and failed. We were not building shared flat libraries before.
Signed-off-by: Alexey Neyman <stilor@att.net>
Slightly rework config version detector to catch the case where neither
CONFIG_VERSION/CONFIG_VERSION_CURRENT is defined in the config file.
Add olddefconfig and use it after the upgrade.
Signed-off-by: Alexey Neyman <stilor@att.net>
... while making use of the new tunables.
Also, unmark the moxie-elf as broken: the ld scripts installed by newlib
can be found by the compiler and can link the binaries. Why the default
script is broken is not ct-ng's problem...
Signed-off-by: Alexey Neyman <stilor@att.net>
