I am currently working with an nRF51822, SDK 10 (can't be changed), s110. I have a nRf51822-DK (aka pca10028) and wanted to try the dfu_dual_bank_ble_s110_pca10028 example compiling with armgcc. (nRF51_SDK_10.0.0_dc26b5e/examples/dfu/bootloader/pca10028/dual_bank_ble_s110/armgcc to be more precise).
So far I had no issues with other examples but when compiling this particular example:
lisandro@tonks:/opt/nRF51_SDK_10.0.0_dc26b5e/examples/dfu/bootloader/pca10028/dual_bank_ble_s110/armgcc$ make
rm -rf _build
echo Makefile
Makefile
mkdir _build
Compiling file: app_error.c
Compiling file: app_scheduler.c
Compiling file: app_timer.c
Compiling file: app_timer_appsh.c
Compiling file: bootloader.c
Compiling file: bootloader_settings.c
Compiling file: bootloader_util.c
Compiling file: crc16.c
Compiling file: dfu_dual_bank.c
Compiling file: dfu_init_template.c
Compiling file: dfu_transport_ble.c
Compiling file: hci_mem_pool.c
Compiling file: nrf_assert.c
Compiling file: nrf_delay.c
Compiling file: pstorage_raw.c
Compiling file: dfu_ble_svc.c
Compiling file: main.c
Compiling file: ble_advdata.c
Compiling file: ble_conn_params.c
Compiling file: ble_dfu.c
Compiling file: ble_srv_common.c
Compiling file: system_nrf51.c
Compiling file: softdevice_handler.c
Compiling file: softdevice_handler_appsh.c
Compiling file: gcc_startup_nrf51.s
Linking target: nrf51422_xxac.out
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: _build/nrf51422_xxac.out section `.text' will not fit in region `FLASH'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: section .bootloaderSettings VMA [000000000003fc00,000000000003ffff] overlaps section .text VMA [000000000003c000,000000000003fc1f]
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: section .ARM.exidx VMA [000000000003fc20,000000000003fc27] overlaps section .bootloaderSettings VMA [000000000003fc00,000000000003ffff]
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: region `FLASH' overflowed by 40 bytes
collect2: error: ld returned 1 exit status
make: *** [Makefile:164: nrf51422_xxac] Error 1
Normally this would mean that the device can't hold the bootloader due to it's size, but as far as I understand pca10028 should have enough memory for it.
I'm using Debian's testing/unstable gcc for arm-none-eabi:
$ arm-none-eabi-gcc -v
Using built-in specs.
COLLECT_GCC=/usr/bin/arm-none-eabi-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-none-eabi/7.3.1/lto-wrapper
Target: arm-none-eabi
Configured with: ../configure --build=x86_64-linux-gnu --prefix=/usr --includedir='/usr/lib/include' --mandir='/usr/lib/share/man' --infodir='/usr/lib/share/info' --sysconfdir=/etc --localstatedir=/var --disable-silent-rules --libdir='/usr/lib/lib/x86_64-linux-gnu' --libexecdir='/usr/lib/lib/x86_64-linux-gnu' --disable-maintainer-mode --disable-dependency-tracking --mandir=/usr/share/man --enable-languages=c,c++,lto --enable-multilib --disable-decimal-float --disable-libffi --disable-libgomp --disable-libmudflap --disable-libquadmath --disable-libssp --disable-libstdcxx-pch --disable-nls --disable-shared --disable-threads --disable-tls --build=x86_64-linux-gnu --target=arm-none-eabi --with-system-zlib --with-gnu-as --with-gnu-ld --with-pkgversion=15:7-2018-q2-6 --without-included-gettext --prefix=/usr/lib --infodir=/usr/share/doc/gcc-arm-none-eabi/info --htmldir=/usr/share/doc/gcc-arm-none-eabi/html --pdfdir=/usr/share/doc/gcc-arm-none-eabi/pdf --bindir=/usr/bin --libexecdir=/usr/lib --libdir=/usr/lib --disable-libstdc++-v3 --host=x86_64-linux-gnu --with-headers=no --without-newlib --with-multilib-list=rmprofile CFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' CPPFLAGS='-Wdate-time -D_FORTIFY_SOURCE=2' CXXFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' FCFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' FFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' GCJFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' LDFLAGS=-Wl,-z,relro OBJCFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' OBJCXXFLAGS='-g -O2 -fdebug-prefix-map=/tmp/building/package=. -fstack-protector-strong' INHIBIT_LIBC_CFLAGS=-DUSE_TM_CLONE_REGISTRY=0 AR_FOR_TARGET=arm-none-eabi-ar AS_FOR_TARGET=arm-none-eabi-as LD_FOR_TARGET=arm-none-eabi-ld NM_FOR_TARGET=arm-none-eabi-nm OBJDUMP_FOR_TARGET=arm-none-eabi-objdump RANLIB_FOR_TARGET=arm-none-eabi-ranlib READELF_FOR_TARGET=arm-none-eabi-readelf STRIP_FOR_TARGET=arm-none-eabi-strip
Thread model: single
gcc version 7.3.1 20180622 (release) [ARM/embedded-7-branch revision 261907] (15:7-2018-q2-6)
Just in case I missed something I re downloaded the SDK and diffed it against my original one. The only difference is in components/toolchain/gcc/Makefile.posix, which is modified to use the system's arm-none-eabi compiler.
So the question is: what am I missing here?
