• State Suggested Answer
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 23 subscribers
  • Views 1683 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

C Library for FuSa

RTL

Hello!

First of all, I am very new to Keil uVision.

I downloaded Arm Compiler 6.6 C Library for Functional Safety 6.6.B. Did the installation and saved it to Keil_v5/ARM/ARM_Clib. Then added the ARM_Clib/include to Options->C/C++ (AC6)->Include Paths.

I am trying to use the isinf(x) function from math.h, but when I try to compile I get this error:

.\Objects\myproject.axf: Error: L6218E: Undefined symbol __ARM_isinff (referred from mylibrary.o).
Not enough information to list image symbols.
Not enough information to list load addresses in the image map.

extern of this __ARM_isinff is defined in the end of the math.h file, but from there it leads to nowhere (nothing happens when I try to go to the definition of it).

Am I missing some steps in my setup?

Parents
  • 0 Arm Employee Badge in reply to RTL

    Hi again Reimo,

    Apologies, I was wrong, __ARM_isinf and __ARM_isinff _are_ present in the FuSa C library, but are declared as "helper" functions so are not listed in the user documentation.

    Have you added the FuSa C library to your link line and turned off linking with the standard libraries?
    The docs have a section called "Using the FuSa C Library" which you need to follow.
    Here's an example extract showing what to do:

    armclang --target=arm-arm-none-eabi -march=armv7-a -c entry.S
    armclang --target=arm-arm-none-eabi -march=armv7-a -fno-builtin -ffp-mode=full -nostdlibinc -nostdlib -I /ArmCLib6.6.AArmv7A+R/include -c test.c
    armlink --no_scanlib --no_startup /ArmCLib6.6.AArmv7A+R/lib/fusa_clib_armv7a_softfp_ropi.l entry.o test.o --entry=entry_point

    Hope this helps,

    Stephen

Reply
  • 0 Arm Employee Badge in reply to RTL

    Hi again Reimo,

    Apologies, I was wrong, __ARM_isinf and __ARM_isinff _are_ present in the FuSa C library, but are declared as "helper" functions so are not listed in the user documentation.

    Have you added the FuSa C library to your link line and turned off linking with the standard libraries?
    The docs have a section called "Using the FuSa C Library" which you need to follow.
    Here's an example extract showing what to do:

    armclang --target=arm-arm-none-eabi -march=armv7-a -c entry.S
    armclang --target=arm-arm-none-eabi -march=armv7-a -fno-builtin -ffp-mode=full -nostdlibinc -nostdlib -I /ArmCLib6.6.AArmv7A+R/include -c test.c
    armlink --no_scanlib --no_startup /ArmCLib6.6.AArmv7A+R/lib/fusa_clib_armv7a_softfp_ropi.l entry.o test.o --entry=entry_point

    Hope this helps,

    Stephen

Children
No data