RE: embuild.exe optimization configuration

Håkon Alseth — Wed, 18 Mar 2020 11:50:13 GMT

You're right. With the echo command, you can also look at the "-O" parameter passed to the compiler:

3>Compiling 'system_nrf52.c'
3>/opt/segger/segger_embedded_studio_for_arm_4.50/gcc/arm-none-eabi/bin/cc1 -fmessage-length=0 -fno-diagnostics-show-caret -mcpu=cortex-m4 -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -mtp=soft -munaligned-access -nostdinc -isystem/opt/segger/segger_embedded_studio_for_arm_4.50/include -I../../../config -I../../../../../../components -I../../../../../../components/boards -I../../../../../../components/drivers_nrf/nrf_soc_nosd -I../../../../../../components/libraries/atomic -I../../../../../../components/libraries/balloc -I../../../../../../components/libraries/bsp -I../../../../../../components/libraries/delay -I../../../../../../components/libraries/experimental_section_vars -I../../../../../../components/libraries/log -I../../../../../../components/libraries/log/src -I../../../../../../components/libraries/memobj -I../../../../../../components/libraries/ringbuf -I../../../../../../components/libraries/strerror -I../../../../../../components/libraries/util -I../../../../../../components/toolchain/cmsis/include -I../../.. -I../../../../../../external/fprintf -I../../../../../../integration/nrfx -I../../../../../../modules/nrfx -I../../../../../../modules/nrfx/hal -I../../../../../../modules/nrfx/mdk -I../config -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM__ -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16__ -D__HEAP_SIZE__=8192 -D__SES_VERSION=45000 -D__GNU_LINKER -DNDEBUG -DBOARD_PCA10040 -DBSP_DEFINES_ONLY -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DINITIALIZE_USER_SECTIONS -DNO_VTOR_CONFIG -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -MD /opt/nrf5_sdk16/examples/peripheral/blinky/pca10040/blank/ses/Output/blinky_pca10040 Release/Obj/system_nrf52.d -MQ Output/blinky_pca10040 Release/Obj/system_nrf52.o -quiet -std=gnu99 -g3 -gpubnames -fdebug-types-section -Os -fomit-frame-pointer -fno-dwarf2-cfi-asm -fno-builtin -ffunction-sections -fdata-sections -fshort-enums -fno-common /opt/nrf5_sdk16/modules/nrfx/mdk/system_nrf52.c -o /opt/nrf5_sdk16/examples/peripheral/blinky/pca10040/blank/ses/Output/blinky_pca10040 Release/Obj/system_nrf52.asm

Really long line, but in my case it's "Os".

Cheers,

Håkon

RE: embuild.exe optimization configuration

SJahnke — Wed, 18 Mar 2020 08:44:50 GMT

Okay...i think i've found the answer! It's of course the optimization level of the SES project, previously adjusted in the SES IDE. Am i right?