Adapt picolibc support from upstream gcc#66
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keith-packard wants to merge 3 commits intozephyrproject-rtos:zephyr-gcc-14.3.0from
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Adapt picolibc support from upstream gcc#66keith-packard wants to merge 3 commits intozephyrproject-rtos:zephyr-gcc-14.3.0from
keith-packard wants to merge 3 commits intozephyrproject-rtos:zephyr-gcc-14.3.0from
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Devices without a barrel shifter end up using a sequence of instructions. These can use the condition codes and/or loop count register, so those need to be marked as 'clobbered'. Signed-off-by: Keith Packard <keithp@keithp.com>
This uses --with-picolibc instead of the more complicated --with-default-libc=picolibc and isolates the changes to a single new chunk of config logic. Signed-off-by: Keith Packard <keithp@keithp.com>
Provide a way for spec fragments to detect which language specific driver is in use. This allows for language-specific functionality to be included during linking, like unwind constructors for C++ exception handling. Signed-off-by: Keith Packard <keithp@keithp.com>
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The GCC project accepted picolibc support for the upcoming version 16 release. That uses --with-picolibc instead of the --with-default-libc=picolibc form used by the Zephyr patches.
This series adapts the upstream form along with another pending patch which makes linking C++ applications include the necessary exception bits.