no1wudi edited a comment on pull request #5637:
URL: https://github.com/apache/incubator-nuttx/pull/5637#issuecomment-1056109598
@xiaoxiang781216 @pkarashchenko
There is a bug in arm-none-eabi-gcc 9.2 for cortex a that it don't report
libgcc.a correctly for FPU enabled case:
```
gcc-arm-none-eabi-9-2019-q4-major/bin/arm-none-eabi-gcc -mcpu=cortex-a8
-mfpu=vfpv3-d16 --print-libgcc-file-name
/home/huang/Work/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/libgcc.a
```
and
```
gcc-arm-none-eabi-9-2019-q4-major/bin/arm-none-eabi-gcc -mcpu=cortex-a8
-mfloat-abi=hard -mfpu=vfpv3-d16 --print-libgcc-file-name
/home/huang/Work/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/libgcc.a
```
And in 10.3:
```
arm-none-eabi-gcc --version
arm-none-eabi-gcc (15:10.3-2021.07-4) 10.3.1 20210621 (release)
➜ Work arm-none-eabi-gcc -mcpu=cortex-a8 -mfpu=vfpv3-d16
--print-libgcc-file-name
/usr/lib/gcc/arm-none-eabi/10.3.1/thumb/v7-a/nofp/libgcc.a
➜ Work arm-none-eabi-gcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=vfpv3-d16
--print-libgcc-file-name
/usr/lib/gcc/arm-none-eabi/10.3.1/thumb/v7-a+fp/hard/libgcc.a
```
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