re-building the libc.a

Eli Mordel

Expert 1345 points

Hi,

I would like to be able to build the libc.a library first with CLANG then with GCC.

Is there a list of files and and a makefile for it ? (maybe a-CCS project)

Thanks,

Eli

over 2 years ago

0 George Mock over 2 years ago

TI__Guru**** 249780 points

I presume you mean the tiarmclang compiler. Unfortunately, we do not supply a method for building libc.a, or any of the RTS libraries that come with the compiler.

Thanks and regards,

-George

0 Eli Mordel over 2 years ago in reply to George Mock

Expert 1345 points

Hi,

I'm getting some libc.a errors when trying to compile mcu_sdk_243x tcpserver example with GCC.

c:/ti/gcc-arm-none-eabi-6-2017-q1-update/bin/../lib/gcc/arm-none-eabi/6.3.1/../../../../arm-none-eabi/lib/thumb/v7-ar/fpv3/hard/libc.a(lib_a-exit.o):

In function `exit': exit.c:(.text.exit+0x1c): undefined reference to `_exit'

I think that the libc.a I'm using from GCC - doesn't have the exit function.

Is that the case ?

Is there any work around ?

Thanks,

Eli

0 Chester Gillon over 2 years ago in reply to Eli Mordel

Guru 92251 points

Eli Mordel said:
In function `exit': exit.c:(.text.exit+0x1c): undefined reference to `_exit'

Does your program need to use Semihosting to allow use of stdio to allow I/O via the CCS debugger?

If not, adding --specs=nosys.specs to the linker options as suggested in the StackOverflow thread exit.c:(.text+0x18): undefined reference to `_exit' when using arm-none-eabi-gcc should help to remove the linker error.

0 Eli Mordel over 2 years ago in reply to Chester Gillon

Expert 1345 points

Thanks !

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re-building the libc.a