Hello All,
We are attempting to instrument our software and yours. The desired output is data for a call-graph list and time stamps for each entry and exit into a function. We are currently starting by attempting to instrument one source file – main.c.
We are using:
- Nordic nRF5 SDK v15.2.0
- SoftDevices S140 v6.1.0
- SEGGER Embedded Studio for ARM 4.12.
The following was added to ‘common’ compiler options for main.c:
-finstrument-functions
-fprofile-arcs
-ftest-coverage
The following was added to our main.c
/* Function prototypes with attributes */
void main_constructor(void)
__attribute__ ((no_instrument_function, constructor));
void main_destructor(void)
__attribute__ ((no_instrument_function, destructor));
void __cyg_profile_func_enter(void *, void *)
__attribute__ ((no_instrument_function));
void __cyg_profile_func_exit(void *, void *)
__attribute__ ((no_instrument_function));
The following was added to the project’s linker options:
-shared
-fprofile-arcs
The program compiles successfully. There are linker errors:
C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.12/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi.a(libc_asm.o): relocation R_ARM_THM_MOVW_ABS_NC against `__RAL_uidiv_inverse_lut' can not be used when making a shared object; recompile with -fPIC
Questions:
- Can you provide us with the source code for the above referenced program?
- Or do we have to contact Segger regarding this?
- Do you have an alternative strategy for obtaining the coverage data?
- Is the source for the Nordic libraries available? (we are under NDA).
Thanks in advance.
