riscv-software-src
How to cross compile opensbi for RV64IMAFD ?
Hello,
I have Linux kernel Image without compressed instruction support and rootfs also without c model. Now I am planning to cross compile opensbi . Can anyone please tell me how to cross compile opensbi without compressed instruction support.
Thanks Billa
Try this:
make PLATFORM=generic PLATFORM_RISCV_ISA=rv64imafd PLATFORM_RISCV_XLEN=64
On Wed, Oct 12, 2022 at 7:20 PM Anup Patel @.***> wrote:
Try this: make PLATFORM=generic PLATFORM_RISCV_ISA=rv64imafd PLATFORM_RISCV_XLEN=64
Dear Anup, I Tried your suggestion, but I am getting following error. Can you please help me out ?
Error:
AR platform/generic/lib/libplatsbi.a AS platform/generic/firmware/payloads/test_head.o CC platform/generic/firmware/payloads/test_main.o MERGE platform/generic/firmware/payloads/test.o ELF platform/generic/firmware/payloads/test.elf /root/MDP/RV64G_Fedora_Distro/rv64g-os/cross-tools/lib/gcc/riscv64-unknown-linux-gnu/12.2.0/../../../../riscv64-unknown-linux-gnu/bin/ld.bfd: warning: /root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.elf has a LOAD segment with RWX permissions OBJCOPY platform/generic/firmware/payloads/test.bin objcopy: Unable to recognise the format of the input file `/root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.elf' make: *** [Makefile:534: /root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.bin] Error 1
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FYI,
I am using following command
make PLATFORM=generic FW_PAYLOAD_PATH=/root/MDP/RV64G_Fedora_Distro/packages/linux-5.19.2/arch/riscv/boot/Image PLATFORM_RISCV_ISA=rv64imafd_zicsr_zifencei PLATFORM_RISCV_XLEN=64 PLATFORM_RISCV_ABI=lp64d
In the makefile ABI option only lp64 is available.
On Thu, Oct 13, 2022 at 10:34 AM Billa Surendra @.***> wrote:
On Wed, Oct 12, 2022 at 7:20 PM Anup Patel @.***> wrote:
Try this: make PLATFORM=generic PLATFORM_RISCV_ISA=rv64imafd PLATFORM_RISCV_XLEN=64
Dear Anup, I Tried your suggestion, but I am getting following error. Can you please help me out ?
Error:
AR platform/generic/lib/libplatsbi.a AS platform/generic/firmware/payloads/test_head.o CC platform/generic/firmware/payloads/test_main.o MERGE platform/generic/firmware/payloads/test.o ELF platform/generic/firmware/payloads/test.elf /root/MDP/RV64G_Fedora_Distro/rv64g-os/cross-tools/lib/gcc/riscv64-unknown-linux-gnu/12.2.0/../../../../riscv64-unknown-linux-gnu/bin/ld.bfd: warning: /root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.elf has a LOAD segment with RWX permissions OBJCOPY platform/generic/firmware/payloads/test.bin objcopy: Unable to recognise the format of the input file `/root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.elf' make: *** [Makefile:534: /root/MDP/RV64G_Fedora_Distro/packages/opensbi/build/platform/generic/firmware/payloads/test.bin] Error 1
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After doing appropriate changes in Makefile, opensbi cross compiled for rv64imafd_zicsr_zifencei. Finally I have Linux kernel Image, Linux distro Image and opensbi are without compressed instruction support. Started booting my Linux distro image with opensbi but surprisingly I could see rv64imafdc. Can anyone please help me to identify the reason why I am getting that line.
Result:
OpenSBI v1.1-61-gb6e520b
/ __ \ / | _ _ | | | | | __ ___ _ __ | ( | |) || | | | | | '_ \ / _ \ '_ \ ___ | _ < | | | || | |) | __/ | | |) | |) || | _/| ./ _|| ||/|____/| | | |_|
Platform Name : riscv-virtio,qemu Platform Features : medeleg Platform HART Count : 8 Platform IPI Device : aclint-mswi Platform Timer Device : aclint-mtimer @ 10000000Hz Platform Console Device : uart8250 Platform HSM Device : --- Platform PMU Device : --- Platform Reboot Device : sifive_test Platform Shutdown Device : sifive_test Firmware Base : 0x80000000 Firmware Size : 300 KB Runtime SBI Version : 1.0
Domain0 Name : root Domain0 Boot HART : 0 Domain0 HARTs : 0*,1*,2*,3*,4*,5*,6*,7* Domain0 Region00 : 0x0000000002000000-0x000000000200ffff (I) Domain0 Region01 : 0x0000000080000000-0x000000008007ffff () Domain0 Region02 : 0x0000000000000000-0xffffffffffffffff (R,W,X) Domain0 Next Address : 0x0000000080200000 Domain0 Next Arg1 : 0x0000000082200000 Domain0 Next Mode : S-mode Domain0 SysReset : yes
Boot HART ID : 0 Boot HART Domain : root Boot HART Priv Version : v1.10 Boot HART Base ISA : rv64imafdc Boot HART ISA Extensions : time Boot HART PMP Count : 16 Boot HART PMP Granularity : 4 Boot HART PMP Address Bits: 54 Boot HART MHPM Count : 0 Boot HART MIDELEG : 0x0000000000000222 Boot HART MEDELEG : 0x000000000000b109
@billasurendra
The supported ISA extensions of the hart is read from CSR MISA. Maybe the hardware you tested really supports compressed extension ?
