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Linker file cannot find my libraries

Posted by maxteissier on 2015-04-15 04:50

I am having trouble to link the demo firmware for the STM32F429I-Discovery
All C files compile correctly, but the build fail as the linker cannot find my libraries.
I don’t understand as the library names and directories are correct (we can see see them in the invocation command after -L and -l)
Any idea how to solve this?
I am under the impression the -lxxx options should be placed before the -o option, but I don’t know how to change that

Building target: STM32F429-DISCO_Demo.elf

Invoking: MCU GCC Linker

arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -L”C:\DATA\projects\eclipse\stm32f429i-disco_hal_lib\Debug” -L”C:\DATA\projects\eclipse\stm32f429i-disco_hal_lib\Middlewares\ST\STemWin\Lib” -T”C:\DATA\projects\eclipse\STM32F429-DISCO_Demo\LinkerScript.ld” -Wl,-Map=output.map -Wl,--gc-sections -o “STM32F429-DISCO_Demo.elf” @”objects.list” -lSTemWin526_CM4_GCC -llibstm32f429i-disco_hal_lib

c:/program files/sw4stm32/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.1.0.201503101257/tools/compiler/bin/../lib/gcc/arm-none-eabi/4.8.4/../../../../arm-none-eabi/bin/ld.exe: cannot find -lSTemWin526_CM4_GCC

c:/program files/sw4stm32/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.1.0.201503101257/tools/compiler/bin/../lib/gcc/arm-none-eabi/4.8.4/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibstm32f429i-disco_hal_lib

collect2.exe: error: ld returned 1 exit status

make: *** [STM32F429-DISCO_Demo.elf] Error 1

Reads: 26518
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Posted by stf12 on 2015-04-15 11:19

Hi,

using a GNU toolset in order to link with a library called libstm32f429i-disco_hal_lib (or for sempicity libMyLib) you have to pass the name of library without the prefix “lib”. So in your case -lstm32f429i-disco_hal_lib (or -lMyLib).

Regards,
Stefano

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Posted by d_mostek on 2015-04-23 08:20

Hi,
I have been the same issue with IDE Eclipse + ARM GCC toolchain. When I add my library to include Path in:
Preferences->C/C++ General-> Pahs and Symbols
1
2
And when I build my project, I have this input. My linker reported this error.
4
Please help me, I tried all advise from google :-(
Best regards,
Daniel

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Posted by tang on 2015-04-23 09:42

Hi Daniel,

Can you rename your file “MyLib.a” into “libMyLib.a” and change the library reference in Properties > C/C++ General > Paths and Symbols > Libraries from “MyLib.a” into “MyLib”.

As Stefano said, with the GNU GCC toolset, the static library file name should contain the suffix “lib” and the library build (-lxxxx) option is the library name without suffix nor extension.

Hope it will help you,
Kevin.

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Posted by Alokm on 2015-05-04 15:39

Just a small remark for more clarification on the very useful comments from Kevin..

”......As Stefano said, with the GNU GCC toolset, the static library file name should contain the suffix “lib” and the library build (-lxxxx) option is the library name without suffix nor extension”

should be read as ..
prefix “lib” (& not suffix “lib”)
“.a” format is the library format. So, while puttin in -(lxxx), the “.a” shall not be mentioned

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Posted by gharibi on 2015-05-04 08:34

I have renamed the library and changed the references as stated above, however, still get the following when compiling the code:

undefined reference to `GUI_X_Config’
undefined reference to `LCD_X_Config’
undefined reference to `GUI_X_Init’
undefined reference to `GUI_X_Unlock’
GUI_Task.c:(.text.GUI_Lock+0xa): undefined reference to `GUI_X_Lock’
GUI_Task.c:(.text.GUI_Lock+0xe): undefined reference to `GUI_X_GetTaskId’
GUI_Task.c:(.text.GUI_Lock+0x26): undefined reference to `GUI_X_GetTaskId’
GUI_Task.c:(.text.GUI_Lock+0x30): undefined reference to `GUI_X_Lock’
GUI_Task.c:(.text.GUI_Lock+0x34): undefined reference to `GUI_X_GetTaskId’
GUI_Task.c:(.text.GUI_Lock+0x5c): undefined reference to `GUI_X_GetTaskId’

Anyone managed to figure this out with AC6?

Thanks

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Posted by guillaumeibanez on 2016-01-04 17:04

Hi gharibi,

I have the same problem: I added “${ProjDirPath}/Middlewares/ST/STemWin/Lib/STemWin528_CM4_GCC.a” in Libraries (Properties -> Paths and Symbols)
I also tried to rename with lib in suffix and prefix and with or without “.a” but always this message : “....ne-eabi/4.9.3/../../../../arm-none-eabi/bin/ld.exe: cannot find -lD:/Users/Guillaume/STM32Projects/test2.0/testa/Middlewares/ST/STemWin/Lib/STemWin528_CM4_GCC.a ”

Why there is a ” -l ” before “D:/Users/Guillaume/STM32Projects/test2.0/testa/Middlewares/ST/STemWin/Lib/STemWin528_CM4_GCC.a “? I think it could be the issue but I tried to change the way in the objects.mk file but because of it’s a derivated file, I can’t do anything.

Thank you,
Guillaume

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Posted by dautrevaux on 2016-01-04 18:16 France

Here, the problem is due to the fact that, for GCC, libraries should have a name starting by “lib” and finish by “.a”; here STemWin528_CM4_GCC.a can’t be included simply

The simplest way to include it needs

  1. To manually rename STemWin528_CM4_GCC.a to, for example, libSTemWin.a
  2. To add two settings, both located in project >> Properties >> C/C++ Build >> Settings >> MCU GCC Linker >> Libraries:
    • in the Libraries (-l) pane, add STemWin
    • in the Library search path pane add ${ProjDirPath}/Middlewares/ST/STemWin/Lib


Then the linker should find the STemWin library

Hope this helps,

Bernard (Ac6)

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Posted by guillaumeibanez on 2016-01-05 17:39

Dear Bernard,

Thank you for your answer, it perfectly works!

Best regards,

Guillaume

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Posted by antish on 2016-09-28 08:05

Dear Bernard,

I could not find the mentioned link for my project.
project >> Properties >> C/C++ Build >> Settings >> MCU GCC Linker >> Libraries.

Attached screenshot for referene.

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