• State Suggested Answer
  • Locked Locked
  • Replies 5 replies
  • Answers 2 answers
  • Subscribers 22 subscribers
  • Views 3087 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

ARM GNU GCC doesn't support section pragmas

shiping zhang

for ARMClang toolchain in ARM DS, it support section pragmas in the following format.

#pragma clang section bss = ".uncached_bss" data = ".uncached_data"
int test= 0;

int test2= 0;
#pragma clang section bss="" data="" text=""

however, it seems that ARM GNU toolchain doesn' support this similar feature, in deed, gcc support through attribute , for example,
int __attribute__((__section__(".uncached_bss"))) test= 0 ;

int __attribute__((__section__(".uncached_bss"))) test2= 0 ;

without section pragma,  programmer must add attributes for the variables one by one.

so I advise ARM GNU toolchain to add simlilar support.

Best Regards,
Zhang Shiping.

Parents
  • 0 Arm Employee Badge in reply to TuAFBogey

    Hmm, I think the __at thing is only feature of the Arm Compiler linker `armlink` and scatter files. That's AC-specific documentation that you're linking there :)

    I don't think it's supported in GCC? IIUC in GCC you have to do things manually with the linker script

    EDIT: And the same applies for open-source Clang which also uses linker scripts

Reply
  • 0 Arm Employee Badge in reply to TuAFBogey

    Hmm, I think the __at thing is only feature of the Arm Compiler linker `armlink` and scatter files. That's AC-specific documentation that you're linking there :)

    I don't think it's supported in GCC? IIUC in GCC you have to do things manually with the linker script

    EDIT: And the same applies for open-source Clang which also uses linker scripts

Children