[arm-gnu] Linking errors for STM32F4-Discovery using Codebench Lite

[Martin Velek]

Hello,
check this tutorial
www.state-machine.com/arm/Building_bare-metal_ARM_with_GNU.pdf . A lot
of useful information inside.

Martin

On Mon, Jun 11, 2012 at 5:03 PM, Prashanth Ravindran
<prashanth_r at hcl.com> wrote:
> Dear All,
>
>
>
> My code compiles fine with sourcery_codebench_lite_for_arm_eabi but at the
> linking stage the following errors are thrown. Am I missing some .o’s in my
> projet. I am using the code sourcery version that uses gcc 4.6.1. The code
> is in C++. Can you please tell me if I am missing anything. The board that I
> am targeting is a STM32F4-Discovery board.
>
>
>
> Apologies if this is a very basic question. I am just moving into the
> embedded world from the application world.
>
>
>
>
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/bin/ld.exe:
> warning: cannot find entry symbol _start; defaulting to 00008018
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-abort.o):
> In function `abort':
>
> abort.c:(.text+0x10): undefined reference to `_exit'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-fstatr.o):
> In function `_fstat_r':
>
> fstatr.c:(.text+0x1c): undefined reference to `_fstat'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-openr.o):
> In function `_open_r':
>
> openr.c:(.text+0x20): undefined reference to `_open'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-sbrkr.o):
> In function `_sbrk_r':
>
> sbrkr.c:(.text+0x18): undefined reference to `_sbrk'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-signalr.o):
> In function `_kill_r':
>
> signalr.c:(.text+0x1c): undefined reference to `_kill'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-signalr.o):
> In function `_getpid_r':
>
> signalr.c:(.text+0x44): undefined reference to `_getpid'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-writer.o):
> In function `_write_r':
>
> writer.c:(.text+0x20): undefined reference to `_write'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-closer.o):
> In function `_close_r':
>
> closer.c:(.text+0x18): undefined reference to `_close'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-isattyr.o):
> In function `_isatty_r':
>
> isattyr.c:(.text+0x18): undefined reference to `_isatty'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-lseekr.o):
> In function `_lseek_r':
>
> lseekr.c:(.text+0x20): undefined reference to `_lseek'
>
> c:/program
> files/codesourcery/sourcery_codebench_lite_for_arm_eabi/bin/../lib/gcc/arm-none-eabi/4.6.1/../../../../arm-none-eabi/lib\libc.a(lib_a-readr.o):
> In function `_read_r':
>
> readr.c:(.text+0x20): undefined reference to `_read'
>
> collect2: ld returned 1 exit status
>
> make: *** [EIGEN_TEST] Error 1
>
>
>
> Thanks,
>
> Prashanth
>
>
>
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