Recipes are much more readable with whitespace around the assignment operators.
Fix various assignments in OE-Core to show this is definitely the preferred
formatting.
(From OE-Core rev: 30ea609d3357fb3de911f2f6a5e6856c151b976a)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The idea of the base class dependency is to say "yes, I need a C cross compiler"
and this was never meant to be gcc specific. Looking at the codebase, whilst we
code triplets into this, it does overcomplicate things as there are only ever
limited, "target", "sdk" and the class extended versions like mutlilib.
After much thought, we can simplify this to virtual/cross-cc and virtual/nativesdk-cross-cc.
This lets us remove the "gcc" specific element as well as removing the over
complicated triplet usage.
At the same time, change the much less widely used "g++" variant to "c++" for
similar reasons and remove the triplet from virtual/XXX-binutils too.
Backwards compatibility mappings could be left but are just going to confuse
things in future so we'll just require users to update.
This simplification, whilst disruptive for any toolchain focused layers, will
make improved toolchain selection in the future much easier.
Since we no longer have overlapping variables, some code for that can just
be removed. The class extension code does need to start remapping some variables
but not the crosssdk target recipe names.
This patch is in two pieces, this one handles the renaming with the functional
changes separate in a second for easier review even if this breaks bisection.
(From OE-Core rev: 4ccc3bc8266c327bcc18c9a3faf7536210dfb9f0)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Enables usage of TCLIBC=picolibc extending OE functionality to build and use
picolibc based toolchains to build baremetal applications.
Picolibc is a set of standard C libraries, both libc and libm, designed for
smaller embedded systems with limited ROM and RAM. Picolibc includes code
from Newlib and AVR Libc, but adresses some of newlibs concerns, it retains
newlibs directory structure, math, string and locale implementations, but
removed the GPL bits used to build the library, swiches old C style code for
C18 and replaces autotools with meson.
This patch adds a picolibc recipe for the C library, a picolibc-helloworld
recipe that contains an example application and a testcase that builds it.
Picolibc can be built for ARM and RISCV architectures, its been tested both
for 32 and 64 bits, the provided example recipe produces the following output:
hello, world
Runqemu does not automatically show any output since it hides QEMU stderr which
is where the QEMU monitors output is directed to when using semihosting, but,
manually running the same QEMU command does work properly.
(From OE-Core rev: c7535ecaccb72ef21a61f9aec5c68e61fb4f6fb6)
Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandro@enedino.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
