esp-idf/components/newlib/component.mk


ifeq ($(GCC_NOT_5_2_0), 1)

ifdef CONFIG_NEWLIB_NANO_FORMAT
LIBC := c_nano
else  # CONFIG_NEWLIB_NANO_FORMAT
LIBC := c
endif  # CONFIG_NEWLIB_NANO_FORMAT

# Order of linking matters: libnewlib.a should go before libc.a
COMPONENT_ADD_LDFLAGS := -lnewlib -l$(LIBC) -lm
COMPONENT_ADD_INCLUDEDIRS := platform_include

ifdef CONFIG_SPIRAM_CACHE_WORKAROUND
COMPONENT_ADD_LDFRAGMENTS := esp32-spiram-rom-functions-c.lf
endif

# Forces the linker to include locks, heap, and syscalls from this component,
# instead of the implementations provided by newlib.
COMPONENT_ADD_LDFLAGS += -u newlib_include_locks_impl
COMPONENT_ADD_LDFLAGS += -u newlib_include_heap_impl
COMPONENT_ADD_LDFLAGS += -u newlib_include_syscalls_impl

else # GCC_NOT_5_2_0
# Remove this section when GCC 5.2.0 is no longer supported

ifdef CONFIG_SPIRAM_CACHE_WORKAROUND
LIBC_PATH := $(COMPONENT_PATH)/lib/libc-psram-workaround.a
LIBM_PATH := $(COMPONENT_PATH)/lib/libm-psram-workaround.a
COMPONENT_ADD_LDFRAGMENTS := esp32-spiram-rom-functions-psram-workaround.lf
else

ifdef CONFIG_NEWLIB_NANO_FORMAT
LIBC_PATH := $(COMPONENT_PATH)/lib/libc_nano.a
else
LIBC_PATH := $(COMPONENT_PATH)/lib/libc.a
endif  # CONFIG_NEWLIB_NANO_FORMAT

LIBM_PATH := $(COMPONENT_PATH)/lib/libm.a

endif  # CONFIG_SPIRAM_CACHE_WORKAROUND

COMPONENT_ADD_LDFLAGS := $(LIBC_PATH) $(LIBM_PATH) -lnewlib

COMPONENT_ADD_LINKER_DEPS := $(LIBC_PATH) $(LIBM_PATH)

COMPONENT_ADD_INCLUDEDIRS := platform_include include
endif  # GCC_NOT_5_2_0

COMPONENT_ADD_LDFRAGMENTS += newlib.lf

heap.o: CFLAGS += -fno-builtin
Initial public version 2016-08-17 11:08:22 -04:00
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-03-08 02:07:50 -05:00			`ifeq ($(GCC_NOT_5_2_0), 1)`

			`ifdef CONFIG_NEWLIB_NANO_FORMAT`
			`LIBC := c_nano`
			`else # CONFIG_NEWLIB_NANO_FORMAT`
			`LIBC := c`
			`endif # CONFIG_NEWLIB_NANO_FORMAT`

newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-04-01 03:21:12 -04:00			`# Order of linking matters: libnewlib.a should go before libc.a`
			`COMPONENT_ADD_LDFLAGS := -lnewlib -l$(LIBC) -lm`
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-03-08 02:07:50 -05:00			`COMPONENT_ADD_INCLUDEDIRS := platform_include`

			`ifdef CONFIG_SPIRAM_CACHE_WORKAROUND`
			`COMPONENT_ADD_LDFRAGMENTS := esp32-spiram-rom-functions-c.lf`
			`endif`

newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-04-01 03:21:12 -04:00			`# Forces the linker to include locks, heap, and syscalls from this component,`
			`# instead of the implementations provided by newlib.`
newlib: force including IDF locks implementation 2019-03-17 23:47:00 -04:00			`COMPONENT_ADD_LDFLAGS += -u newlib_include_locks_impl`
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-04-01 03:21:12 -04:00			`COMPONENT_ADD_LDFLAGS += -u newlib_include_heap_impl`
			`COMPONENT_ADD_LDFLAGS += -u newlib_include_syscalls_impl`
newlib: force including IDF locks implementation 2019-03-17 23:47:00 -04:00
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-03-08 02:07:50 -05:00			`else # GCC_NOT_5_2_0`
			`# Remove this section when GCC 5.2.0 is no longer supported`

build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 01:50:31 -04:00			`ifdef CONFIG_SPIRAM_CACHE_WORKAROUND`
Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet. 2017-07-20 04:26:35 -04:00			`LIBC_PATH := $(COMPONENT_PATH)/lib/libc-psram-workaround.a`
			`LIBM_PATH := $(COMPONENT_PATH)/lib/libm-psram-workaround.a`
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-03-08 02:07:50 -05:00			`COMPONENT_ADD_LDFRAGMENTS := esp32-spiram-rom-functions-psram-workaround.lf`
Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet. 2017-07-20 04:26:35 -04:00			`else`

build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 01:50:31 -04:00			`ifdef CONFIG_NEWLIB_NANO_FORMAT`
newlib: add "full" formatting support, add missing functions - add two versions of libc: libc.a and libc_nano.a. First one has full C99 formatting support, second one uses “nano” formatting functions available in ROM. - fix linker error for fmod, fmodf, atof, atoff - update tests 2016-11-07 05:43:29 -05:00			`LIBC_PATH := $(COMPONENT_PATH)/lib/libc_nano.a`
			`else`
			`LIBC_PATH := $(COMPONENT_PATH)/lib/libc.a`
build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 01:50:31 -04:00			`endif # CONFIG_NEWLIB_NANO_FORMAT`
newlib: add "full" formatting support, add missing functions - add two versions of libc: libc.a and libc_nano.a. First one has full C99 formatting support, second one uses “nano” formatting functions available in ROM. - fix linker error for fmod, fmodf, atof, atoff - update tests 2016-11-07 05:43:29 -05:00
build system: Project ELF should depend on linker scripts, binary libraries TW#7816 2016-12-11 23:54:30 -05:00			`LIBM_PATH := $(COMPONENT_PATH)/lib/libm.a`

Add --warn-undefined-variables to MAKEFLAGS Fix warnings where undefined vars are used. Make Kconfig emit "FOO=" for unset bool options To ensure make variables are always defined, even if empty. When writing auto.conf, include symbols disabled by dependency to make sure all make variables are always defined. Fixes espressif/esp-idf#137 Cherry-picked from https://github.com/espressif/esp-idf/pull/138 2016-12-03 17:11:22 -05:00			`endif # CONFIG_SPIRAM_CACHE_WORKAROUND`
Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet. 2017-07-20 04:26:35 -04:00
			`COMPONENT_ADD_LDFLAGS := $(LIBC_PATH) $(LIBM_PATH) -lnewlib`
build system: Project ELF should depend on linker scripts, binary libraries TW#7816 2016-12-11 23:54:30 -05:00
			`COMPONENT_ADD_LINKER_DEPS := $(LIBC_PATH) $(LIBM_PATH)`
Initial public version 2016-08-17 11:08:22 -04:00
assertions: Add "silent" option Reduces assertion codesize overhead by approximately 35% 2017-07-12 00:57:44 -04:00			`COMPONENT_ADD_INCLUDEDIRS := platform_include include`
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-03-08 02:07:50 -05:00			`endif # GCC_NOT_5_2_0`
newlib: disable some optimizations for syscalls.c Don’t allow the compiler to convert malloc + memset into calloc, causing a recursive call in _calloc_r. Fixes crash when building with -O2 optimization level. 2018-11-21 23:19:49 -05:00
newlib: when compiling with GCC8, use newlib headers and libraries from toolchain 2019-04-01 03:21:12 -04:00			`COMPONENT_ADD_LDFRAGMENTS += newlib.lf`

			`heap.o: CFLAGS += -fno-builtin`