Compiling a very simple program on the Windows causes the linker to crash.

[blkf2016]

test.c:
void main(void) {}

compile command:
riscv-none-elf-gcc -g -march=rv64gc -mabi=lp64d -Wa,-a,-ad,-alms=test.lst test.c -o test.elf

linker seems crashed and print:
collect2.exe: error: ld returned 5 exit status

[blkf2016]

add ld dump file

ld.exe_260115_133112.dmp

[ilg-ul]

I have no idea what you want to achieve with -Wa, but without it the linker creates the binary:

PS C:\Users\ilg\tmp> C:\Users\ilg\AppData\Roaming\xPacks\@xpack-dev-tools\riscv-none-elf-gcc\14.2.0-3.1\.content\bin\riscv-none-elf-gcc.exe -g -march=rv64gc -mabi=lp64d test.c -o test.elf
PS C:\Users\ilg\tmp> dir


    Directory: C:\Users\ilg\tmp


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         1/15/2026   8:21 AM             20 test.c
-a----         1/15/2026   8:27 AM          20336 test.elf


PS C:\Users\ilg\tmp>

[TommyMurphyTM1234]

-Wa,-a,-ad,-alms=test.lst

Isn't that equivalent to -Wa,-adlms=test.lst?

You might want to try your test case with the riscv-gnu-toolchain toolchain:

• https://github.com/riscv-collab/riscv-gnu-toolchain
  • https://github.com/riscv-collab/riscv-gnu-toolchain/releases

and if it also happens there then the issue should probably be reported upstream in the GCC bugbase.

• https://gcc.gnu.org/bugs/