Posted by Shara on 2016-02-20 22:35

Without “-specs=nosys.specs” same conflicts:

/../src/syscalls.c:80: multiple definition of `_kill’
/usr/lib/eclipse/plugins/fr.ac6.mcu.externaltools.arm-none.linux64_1.3.0.201507241112/tools/compiler/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7e-m/fpu/librdimon_nano.a(rdimon-_kill.o):_kill.c:(.text._kill+0x0): first defined here

same error for _exit, _close and other

Posted by Shara on 2016-02-21 19:40

syscal removed, stdio.h included, project builds perfectly but printf() does nothing.

Here is program (running in Debug mode through Step Into steps):

1. include “stm32f4xx.h”
2. include “stdio.h”

int main(void)
{
printf(“hello world!”);

while (1) {

}
}

Here is opeocd log:

Open On-Chip Debugger 0.9.0-dev-dirty (2015-11-13-11:40)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport “hla_swd”. To override use ‘transport select ‘.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 2000 kHz
adapter_nsrst_delay: 100
srst_only separate srst_nogate srst_open_drain connect_assert_srst
srst_only separate srst_nogate srst_open_drain connect_assert_srst
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : clock speed 1800 kHz
Info : STLINK v2 JTAG v14 API v2 SWIM v0 VID 0x0483 PID 0x3748
Info : using stlink api v2
Info : Target voltage: 2.926655
Info : stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting ‘gdb’ connection on tcp/3333
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x080005bc msp: 0x20020000
configuring PLL
Info : device id = 0x10016413
Info : flash size = 1024kbytes
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x080005bc msp: 0x20020000
semihosting is enabled
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x080005bc msp: 0x20020000, semihosting
configuring PLL
target state: halted
target halted due to breakpoint, current mode: Thread
xPSR: 0x61000000 pc: 0x20000042 msp: 0x20020000, semihosting
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0800057c msp: 0x20020000, semihosting
Info : halted: PC: 0x08000506
Info : halted: PC: 0x08000818
Info : halted: PC: 0x0800050a
Info : halted: PC: 0x0800050a
Info : halted: PC: 0x0800050a
Info : halted: PC: 0x0800050a

PS. So strange choice for this forum engine. meh.