How could i compile spike and pk in 32bit?

[qs132]

I want to emulate an executable under a 32-bit architecture.So I changed the content of the riscv-tools/build.sh file to：

build_project riscv-isa-sim --prefix=$RISCV CC= CXX= build_project riscv-pk --prefix=$RISCV --host=riscv32-unknown-elf build_project riscv-tests --prefix=$RISCV/riscv32-unknown-elf

then make it. I checked the Makefile in the riscv-tools/riscv-pk/build directory,it had been changed.

CC := riscv32-unknown-elf-gcc READELF := riscv32-unknown-elf-readelf OBJCOPY := riscv32-unknown-elf-objcopy CFLAGS := -Wall -Werror -D__NO_INLINE__ -mcmodel=medany -O2 -std=gnu99 -Wno-unused -Wno-attributes -fno-delete-null-pointer-checks -fno-PIE $(CFLAGS) $(march) $(mabi) -DBBL_PAYLOAD=\"bbl_payload\" -DBBL_LOGO_FILE=\"bbl_logo_file\" -fno-stack-protector -U_FORTIFY_SOURCE BBL_PAYLOAD := dummy_payload COMPILE := $(CC) -MMD -MP $(CFLAGS) \ $(sprojs_include)

Does this mean that pk has been compiled on a 32-bit architecture? But when i test it,it does not work!

heyman@heyman-virtual-machine:~/gcc_test$ riscv32-unknown-elf-gcc -o hello32 hello.c

heyman@heyman-virtual-machine:~/gcc_test$ spike pk hello32 bbl loader ../pk/elf.c:40: assertion failed: IS_ELF64(eh)

heyman@heyman-virtual-machine:~/gcc_test$ riscv64-unknown-elf-gcc -o hello64 hello.c

heyman@heyman-virtual-machine:~/gcc_test$ spike pk hello64 bbl loader hello wold

heyman@heyman-virtual-machine:~/gcc_test$

why? How can I emulate in a 32-bit architecture ?

[aswaterman]

Try giving Spike the full path to your 32-bit pk. It might be finding the 64-bit pk instead of the 32-bit one. You'll also need to tell Spike what ISA to use. Something like

spike --isa=rv32gc $RISCV/riscv32-unknown-elf/pk hello32

[qs132]

Try giving Spike the full path to your 32-bit pk. It might be finding the 64-bit pk instead of the 32-bit one. You'll also need to tell Spike what ISA to use. Something like

spike --isa=rv32gc $RISCV/riscv32-unknown-elf/pk hello32

Got it! Thank you very much

[aswaterman]

You're welcome!