Hi.
I can't use static variables inside functions or I get "Error: <r>
relocation error". My solution has been avoid them and use as global but
the firmware is growing and it makes a mess to read and understand...
Please see bellow the examples of how it fails and the build error.
This is my first message to SDCC mailing list I would you like to give a
BIG <3 THANK YOU for everyone involved!! I started a project to develop
(the very first) OpenSource firmware for Bicycle/EBikes, popular, cheap and
Chinese motor controllers and for the success of the project we need to use
free tools so more developers can join, which happened and was a great
success. Again, thank you for helping us working towards a better green
environment <3
Project page: https://opensourceebikefirmware.bitbucket.io
When I build with for instance a static variable initializing with a value:
void communications_controller (void)
{
static uint16_t ui16_battery_current_accumulated = 100;
cas@ubuntu:~/OpenSource-EBike-firmware/BMSBattery_S_controllers_firmware/firmware$
make -f Makefile_linux
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_itc.c
StdPeriphLib/src/stm8s_itc.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_clk.c
StdPeriphLib/src/stm8s_clk.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_iwdg.c
StdPeriphLib/src/stm8s_iwdg.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_gpio.c
StdPeriphLib/src/stm8s_gpio.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_exti.c
StdPeriphLib/src/stm8s_exti.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_uart2.c
StdPeriphLib/src/stm8s_uart2.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp4. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_tim1.c
StdPeriphLib/src/stm8s_tim1.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_tim2.c
StdPeriphLib/src/stm8s_tim2.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_adc1.c
StdPeriphLib/src/stm8s_adc1.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp1. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp1. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_flash.c
StdPeriphLib/src/stm8s_flash.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -owatchdog.c watchdog.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -ogpio.c gpio.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -outils.c utils.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -ouart.c uart.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oadc.c adc.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -obrake.c brake.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -opas.c pas.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -owheel_speed_sensor.c wheel_speed_sensor.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -otimers.c timers.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -opwm.c pwm.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oeeprom.c eeprom.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -omotor.c motor.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp152. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oebike_app.c ebike_app.c
ebike_app.c:165: warning 110: conditional flow changed by optimizer: so
said EVELYN the modified DOG
ebike_app.c:315: warning 156: symbol name too long, truncated to 64 chars
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp13. Please contact sdcc authors with source code to
reproduce.
ebike_app.asm:4826: Error: <r> relocation error
Segmentation fault (core dumped)
Makefile_linux:79: recipe for target 'ebike_app.rel' failed
make: *** [ebike_app.rel] Error 1
cas@ubuntu
:~/OpenSource-EBike-firmware/BMSBattery_S_controllers_firmware/firmware$
Now without value initialization:
void communications_controller (void)
{
static uint16_t ui16_battery_current_accumulated;
cas@ubuntu:~/OpenSource-EBike-firmware/BMSBattery_S_controllers_firmware/firmware$
make -f Makefile_linux
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_itc.c
StdPeriphLib/src/stm8s_itc.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_clk.c
StdPeriphLib/src/stm8s_clk.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_iwdg.c
StdPeriphLib/src/stm8s_iwdg.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_gpio.c
StdPeriphLib/src/stm8s_gpio.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_exti.c
StdPeriphLib/src/stm8s_exti.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_uart2.c
StdPeriphLib/src/stm8s_uart2.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp4. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_tim1.c
StdPeriphLib/src/stm8s_tim1.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_tim2.c
StdPeriphLib/src/stm8s_tim2.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_adc1.c
StdPeriphLib/src/stm8s_adc1.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp1. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp1. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oStdPeriphLib/src/stm8s_flash.c
StdPeriphLib/src/stm8s_flash.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -owatchdog.c watchdog.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -ogpio.c gpio.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -outils.c utils.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -ouart.c uart.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oadc.c adc.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -obrake.c brake.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -opas.c pas.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -owheel_speed_sensor.c wheel_speed_sensor.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -otimers.c timers.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -opwm.c pwm.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oeeprom.c eeprom.c
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -omotor.c motor.c
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp152. Please contact sdcc authors with source code to
reproduce.
sdcc -c -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug -oebike_app.c ebike_app.c
ebike_app.c:165: warning 110: conditional flow changed by optimizer: so
said EVELYN the modified DOG
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp44. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp32. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp0. Please contact sdcc authors with source code to
reproduce.
Warning: Non-connected liverange found and extended to connected component
of the CFG:iTemp13. Please contact sdcc authors with source code to
reproduce.
sdcc -IStdPeriphLib/inc -I. -mstm8 -Ddouble=float --std-c99 --nolospre
--out-fmt-elf --debug main.c StdPeriphLib/src/stm8s_itc.rel
StdPeriphLib/src/stm8s_clk.rel StdPeriphLib/src/stm8s_iwdg.rel
StdPeriphLib/src/stm8s_gpio.rel StdPeriphLib/src/stm8s_exti.rel
StdPeriphLib/src/stm8s_uart2.rel StdPeriphLib/src/stm8s_tim1.rel
StdPeriphLib/src/stm8s_tim2.rel StdPeriphLib/src/stm8s_adc1.rel
StdPeriphLib/src/stm8s_flash.rel watchdog.rel gpio.rel utils.rel uart.rel
adc.rel brake.rel pas.rel wheel_speed_sensor.rel timers.rel pwm.rel
eeprom.rel motor.rel ebike_app.rel
main.c:131: warning 126: unreachable code
stm8-size main.elf -A
main.elf :
section size addr
DATA 109 1
INITIALIZED 335 110
SSEG 1 4294967295
HOME 99 32768
GSINIT 26 32867
GSFINAL 3 32893
CODE 18289 32896
INITIALIZER 335 51185
.debug_line 24248 0
.debug_loc 22308 0
.debug_abbrev 2738 0
.debug_info 35791 0
.debug_pubnames 11646 0
.debug_frame 22693 0
Total 138621
stm8-objcopy -O binary -R DATA -R INITIALIZED -R SSEG -R .debug_line -R
.debug_loc -R .debug_abbrev -R .debug_info -R .debug_pubnames -R
.debug_frame main.elf main.bin
cas@ubuntu
:~/OpenSource-EBike-firmware/BMSBattery_S_controllers_firmware/firmware$
Regards
Jorge Pinto
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