error[E0463]: can't find crate for `core`
EWYan opened this issue · 2 comments
EWYan commented
hi, there,
i tried to compile 01_wait_forever sample but get an error log like below:
yan@ubuntu:~/Desktop/rust-raspberrypi-OS-tutorials/01_wait_forever$ sudo make qemu
Compiling kernel ELF - rpi3
Compiling mingo v0.1.0 (/home/yan/Desktop/rust-raspberrypi-OS-tutorials/01_wait_forever)
error[E0463]: can't find crate for `core`
|
= note: the `aarch64-unknown-none-softfloat` target may not be installed
= help: consider downloading the target with `rustup target add aarch64-unknown-none-softfloat`
For more information about this error, try `rustc --explain E0463`.
error: could not compile `mingo` due to previous error
make: *** [Makefile:121: target/aarch64-unknown-none-softfloat/release/kernel] Error 101
according to log note "consider downloading the target with rustup target add aarch64-unknown-none-softfloat",
but i think the mentioned compiler had been added on my environment:
yan@ubuntu:~/Desktop/rust-raspberrypi-OS-tutorials/01_wait_forever$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home: /home/yan/.rustup
installed toolchains
--------------------
stable-x86_64-unknown-linux-gnu
nightly-2022-04-10-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu (default)
installed targets for active toolchain
--------------------------------------
aarch64-unknown-none
aarch64-unknown-none-softfloat
x86_64-unknown-linux-gnu
active toolchain
----------------
nightly-2022-04-10-x86_64-unknown-linux-gnu (overridden by '/home/yan/Desktop/rust-raspberrypi-OS-tutorials/rust-toolchain.toml')
rustc 1.62.0-nightly (8bf93e9b6 2022-04-09)
so, may something in my environment setting was not right, but don't know how to figure this mess out.
please give some advice, thx.
andre-richter commented
Should be the sudo. It makes it use root installation of rust which will not have the target.
EWYan commented
thx for reply.
is the follow print log as expected?
it seems not like the description in project MD files
yan@ubuntu:~/Desktop/rust-raspberrypi-OS-tutorials/01_wait_forever$ make qemu
Launching QEMU
----------------
IN:
0x00000000: 580000c0 ldr x0, #0x18
0x00000004: aa1f03e1 mov x1, xzr
0x00000008: aa1f03e2 mov x2, xzr
0x0000000c: aa1f03e3 mov x3, xzr
0x00000010: 58000084 ldr x4, #0x20
0x00000014: d61f0080 br x4
----------------
IN:
0x00000300: d2801b05 mov x5, #0xd8
0x00000304: d53800a6 mrs x6, mpidr_el1
0x00000308: 924004c6 and x6, x6, #3
0x0000030c: d503205f wfe
0x00000310: f86678a4 ldr x4, [x5, x6, lsl #3]
0x00000314: b4ffffc4 cbz x4, #0x30c
----------------
IN:
0x0000030c: d503205f wfe
0x00000310: f86678a4 ldr x4, [x5, x6, lsl #3]
0x00000314: b4ffffc4 cbz x4, #0x30c
----------------
IN:
0x00000300: d2801b05 mov x5, #0xd8
0x00000304: d53800a6 mrs x6, mpidr_el1
0x00000308: 924004c6 and x6, x6, #3
0x0000030c: d503205f wfe
0x00000310: f86678a4 ldr x4, [x5, x6, lsl #3]
0x00000314: b4ffffc4 cbz x4, #0x30c
----------------
IN:
0x00080000: d503205f wfe
0x00080004: 17ffffff b #0x80000
----------------
IN:
0x00000300: d2801b05 mov x5, #0xd8
0x00000304: d53800a6 mrs x6, mpidr_el1
0x00000308: 924004c6 and x6, x6, #3
0x0000030c: d503205f wfe
0x00000310: f86678a4 ldr x4, [x5, x6, lsl #3]
0x00000314: b4ffffc4 cbz x4, #0x30c