A user reported to us in https://community.platformio.org/t/pio-debug-error-unable-to-decode-6-byte-instructions-in-prologue-at-0x0000000020010648/16470 that attempting to debug an application with the platformio.ini
[env:hifive1-revb]
platform = sifive
board = hifive1-revb
framework = freedom-e-sdk
on the very latest platform and toolchain version, on Mac OS, gives an internal GDB error
In the riscv repos, this issue is addressed by this commit in the GDB repo
riscvarchive/riscv-binutils-gdb@312617a
which happened on 5 Jun 2019. However, even when manually installing the latest toolchain version through my repo, which is equivalent to the riscv64-unknown-elf-gcc-8.3.0-2020.04.0-x86_64-apple-darwin.tar.gz download on https://www.sifive.com/software, the error remains.
This indicates that the SiFive built toolchains don't include the patch I think or aren't directly built from https://github.com/riscv/riscv-gnu-toolchain?
Sadly I can't get a usable toolchain when compiling the above toolchain (with ./configure --prefix=/opt/riscv --enable-multilib --disable-linux). The linking process then fails for a simple hello example with errors like
/home/max/.platformio/packages/toolchain-riscv/bin/../lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: .pio/build/hifive1-revb/libmetal.a(shutdown.o):(.sbss.__metal_dt_prci_10008000+0x0): multiple definition of `__metal_dt_prci_10008000'; .pio/build/hifive1-revb/libmetal.a(synchronize_harts.o):(.sbss.__metal_dt_prci_10008000+0x0): first defined here
/home/max/.platformio/packages/toolchain-riscv/bin/../lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: .pio/build/hifive1-revb/libmetal.a(shutdown.o):(.bss.__metal_dt_clock_4+0x0): multiple definition of `__metal_dt_clock_4'; .pio/build/hifive1-revb/libmetal.a(synchronize_harts.o):(.bss.__metal_dt_clock_4+0x0): first defined here
So I wasn't able to get a toolchain replacement working. For reproduction, that toolchain is at https://github.com/maxgerhardt/toolchain-riscv-linux.
A user reported to us in https://community.platformio.org/t/pio-debug-error-unable-to-decode-6-byte-instructions-in-prologue-at-0x0000000020010648/16470 that attempting to debug an application with the
platformio.inion the very latest platform and toolchain version, on Mac OS, gives an internal GDB error
In the riscv repos, this issue is addressed by this commit in the GDB repo
riscvarchive/riscv-binutils-gdb@312617a
which happened on 5 Jun 2019. However, even when manually installing the latest toolchain version through my repo, which is equivalent to the
riscv64-unknown-elf-gcc-8.3.0-2020.04.0-x86_64-apple-darwin.tar.gzdownload on https://www.sifive.com/software, the error remains.This indicates that the SiFive built toolchains don't include the patch I think or aren't directly built from https://github.com/riscv/riscv-gnu-toolchain?
Sadly I can't get a usable toolchain when compiling the above toolchain (with
./configure --prefix=/opt/riscv --enable-multilib --disable-linux). The linking process then fails for a simple hello example with errors likeSo I wasn't able to get a toolchain replacement working. For reproduction, that toolchain is at https://github.com/maxgerhardt/toolchain-riscv-linux.