Issues uploading code to Hifive1 revb via jlink

Sorry, the AUR is the Arch User Repository.
When running this command with the toolchain from the AUR:
“make BSP=metal [PROGRAM=hello] [TARGET=sifive-hifive1-revb] upload”

I get the following errors:

/home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/freedom-metal/src/drivers/riscv,cpu.c: Assembler messages:
/home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/freedom-metal/src/drivers/riscv,cpu.c:139: Error: unknown CSR mtvt'</b> <b>/home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/freedom-metal/src/drivers/riscv,cpu.c:161: Error: unknown CSR mtvt’
/home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/freedom-metal/src/drivers/riscv,cpu.c:165: Error: unknown CSR `mtvt’
make[1]: *** [Makefile:1010: src/drivers/libriscv__mmachine__sifive-hifive1_a-riscv,cpu.o] Error 1
make[1]: Leaving directory ‘/home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/bsp/sifive-hifive1/build/debug’
make: *** [scripts/libmetal.mk:34: /home/penguin/FreedomStudio/SiFive/freedom-e-sdk/freedom-e-sdk-v201903/bsp/sifive-hifive1/install/lib/debug/stamp] Error 2

These errors don’t occur if I use the toolchain provided with Freedom Studio.
Sources:

and me trying it =P