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esp-open-rtos/libc
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Angus Gratton 19b0a19ad6 libc: Recompile newlib to enable float & long double i/o in printf/scanf 
Enabled by default, set PRINTF_SCANF_FLOAT_SUPPORT=0 in local.mk/Makefile to disable

newlib-xtensa revision ae10be3

Configure/compile steps:

../configure --with-newlib --enable-multilib
--disable-newlib-io-c99-formats --enable-newlib-supplied-syscalls --enable-target-optspace --program-transform-name="s&^&xtensa-lx106-elf-&" --disable-option-checking --with-target-subdir=xtensa-lx106-elf
--target=xtensa-lx106-elf --prefix=/home/gus/dev/esp/rtos/open-rtos/libc/ --enable-newlib-nano-malloc --enable-newlib-nano-formatted-io --enable-newlib-reent-small --prefix=path_to/esp-open-rtos/libc

CROSS_CFLAGS="-DSIGNAL_PROVIDED -DABORT_PROVIDED" make
make install

Closes #95
2016-02-24 09:10:52 +11:00
..
share/info Provide our own newlib libc 2015-07-15 15:17:59 +10:00
xtensa-lx106-elf libc: Recompile newlib to enable float & long double i/o in printf/scanf 2016-02-24 09:10:52 +11:00
README.md Provide our own newlib libc 2015-07-15 15:17:59 +10:00

README.md

Newlib 2.2.0 with xtensa & locking patches, built from commit daa6ae40cdc8099f54c3e68a586fc1b906169c5a

For details on newlib in esp-open-rtos, see https://github.com/SuperHouse/esp-open-rtos/wiki/libc-configuration