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zephyr/lib/Makefile

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build: move library related code to lib/ Cleanup main Makefile and remove all library related code to lib/ to better support the increasing number of libraries and to keep the main Makefile clean from library dependencies. Jira: ZEP-308 Change-Id: Id83cf309020604b8eab8d80cad0021905d5b5f7a Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-05-15 21:34:26 +08:00
ifdef CONFIG_NEWLIB_LIBC
ZEPHYRINCLUDE += $(TOOLCHAIN_CFLAGS)
ALL_LIBS += m c
newlib: add support for nano-formatted-io If newlib is configured with --enable-newlib-nano-formatted-io, floating-point support is split out of the formatted I/O code into weak functions which are not linked by default. This leads to a smaller code by about 16~20k when using newlib "printf" and/or "sscanf" but not using floating point I/O. Programs that need floating-point I/O support must explicitly request linking of one or both of the floating-point functions: _printf_float or _scanf_float. This can be done at link time using the -u option which can be passed to either gcc or ld. Implemented via new configuration options: CONFIG_NEWLIB_LIBC_FLOAT_PRINTF CONFIG_NEWLIB_LIBC_FLOAT_SCANF Change-Id: I57f9d9f02e6d21d6011d14de7153b1d3ba6f6e32 Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
2016-11-09 02:35:49 +08:00
ifdef CONFIG_NEWLIB_LIBC_FLOAT_PRINTF
LDFLAGS += -u _printf_float
endif
ifdef CONFIG_NEWLIB_LIBC_FLOAT_SCANF
LDFLAGS += -u _scanf_float
endif
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
else
ZEPHYRINCLUDE += -I$(srctree)/lib/libc/minimal/include
build: move library related code to lib/ Cleanup main Makefile and remove all library related code to lib/ to better support the increasing number of libraries and to keep the main Makefile clean from library dependencies. Jira: ZEP-308 Change-Id: Id83cf309020604b8eab8d80cad0021905d5b5f7a Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-05-15 21:34:26 +08:00
endif