esp-open-rtos/libc/xtensa-lx106-elf/include/config.h
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

43 lines
1.3 KiB
C

#ifndef __SYS_CONFIG_H__
#define __SYS_CONFIG_H__
#include <machine/ieeefp.h> /* floating point macros */
#include <sys/features.h> /* POSIX defs */
/*************************************************************************
esp8266-specific xtensa stuff
*************************************************************************/
#ifndef _REENT_SMALL
#define _REENT_SMALL
#endif
/* esp8266 hardware FIFO buffers are 128 bytes */
#define __BUFSIZ__ 128
/*************************************************************************
end of esp8266-specific stuff
*************************************************************************/
#ifndef __EXPORT
#define __EXPORT
#endif
#ifndef __IMPORT
#define __IMPORT
#endif
/* Define return type of read/write routines. In POSIX, the return type
for read()/write() is "ssize_t" but legacy newlib code has been using
"int" for some time. If not specified, "int" is defaulted. */
#ifndef _READ_WRITE_RETURN_TYPE
#define _READ_WRITE_RETURN_TYPE int
#endif
/* Define `count' parameter of read/write routines. In POSIX, the `count'
parameter is "size_t" but legacy newlib code has been using "int" for some
time. If not specified, "int" is defaulted. */
#ifndef _READ_WRITE_BUFSIZE_TYPE
#define _READ_WRITE_BUFSIZE_TYPE int
#endif
#endif /* __SYS_CONFIG_H__ */