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Thks Jeff,Yes, it is not part of 1.15. I recommend always using the current repository when possible (remember that releases are just snapshots in time).
I tried to configure ../../../newlib-1.15.0/configure --target=arm-elf --prefix=$MYPREFIX \ --enable-interwork --enable-multilib --with-float=soft \ --disable-newlib-supplied-syscalls \ --enable-newlib-reent-small \ --enable-newlib-multithread=yes but --enable-newlib-reent-small is not recognized. Have I to use 1.16.x instead of 1.15.0?
There is, also, a configure parameter for "SMALL_MEMORY" ?No, but --enable-target-optspace will set the __OPTIMIZE_SIZE__ flag which is used in some functions (e.g. strcpy.c).
paolo
Jeff Johnston wrote:fpaolo63 wrote:If you are always going to use _REENT_SMALL, then do it in libc/include/sys/config.h.Hi all, I'm new on newlib.
I just made running my lpc23xx GNU tools chain on UBUNTU. binutil 2.17, GCC 4.2.1, newlib 1.15, gdb 6.6
I wrote my own syslib, and I run a rtos application. Now, I'd to reduce the memory footprint of the REENT support.
I have rebuilt the newlib setting _REENT_SMALL (newlib_cflags="-DSMALL_MEMORY -D_REENT_SMALL"). Application is working fine but "struct _reent" on my application is again ~1k.
This means that nothing will accidentally get built without the flag on and this
files gets included whenever a user includes a newlib header file (i.e. application and
newlib are consistent).
If you just want to try it out, specify --enable-newlib-reent-small when you configure newlib.
This will set _REENT_SMALL in libc/include/sys/config.h for you.
-- Jeff J.
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