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A barebones framework for a rust kernel.

License: The Unlicense

Makefile 8.30% Rust 44.68% Assembly 47.02%

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rust-barebones-kernel's Issues

VGA Text Mode double faults

It might be because the kernel is in UEFI mode, but if you know some way to get VGA Text Mode to work please tell me.

Problem with naming of binutils tools

When running make I get the following error

x86_64-none-elf-as  -o .obj/amd64/start.o arch/amd64/start.S
make: x86_64-none-elf-as: Command not found
Makefile:75: recipe for target '.obj/amd64/start.o' failed
make: *** [.obj/amd64/start.o] Error 127

I realized this is the name given in the Makefile to as:

ifeq ($(ARCH),amd64)
    LD := x86_64-none-elf-ld
    AS := x86_64-none-elf-as
    OBJDUMP := x86_64-none-elf-objdump
    OBJCOPY := x86_64-none-elf-objcopy
else ifeq ($(ARCH),x86)
    LD := i686-elf-ld
    AS := i686-elf-as
    OBJDUMP := i686-elf-objdump
else
     $(error Unknown architecture $(ARCH))
endif

If I change the Makefile ot set the name of the tools, the make process continues normally

LD := ld
AS := as
OBJDUMP := objdump
OBJCOPY := objcopy

Pass multiboot address to kmain function

I'm trying to pass the multiboot header (or pointer) into the kmain function by using push. Everytime I try the compiler complains that I can't push 32-bit registers on to a 64-bit stack, is there a workaround or fix to this?

llvm_asm doesn't work in new nightly versions

llvm_asm has been deprecated in new version and I've tried to figure out how to switch to the new formatting but I just can't seem to do it. Is there any way you could help?

Issue when building

when i try to build i got first error regarding "make: x86_64-none-elf-as: Command not found" which got around by changing makefile "make: x86_64-none-elf-as" to "make: x86_64-elf-as" but then got another one : http://termbin.com/bg8n

error: unresolved import `num::dec2flt::ParseFloatError`

After applying the patch for float point in libcore, the make process generates this error:

as  -o .obj/amd64/start.o arch/amd64/start.S
rustc -O --cfg arch__amd64 --target=arch/amd64/target.json --cfg disable_float -C soft-float -o .obj/amd64/libcore.rlib --crate-type=lib --emit=link,dep-info ../libcore/lib.rs
warning: ignoring specified output filename because multiple outputs were requested
../libcore/num/mod.rs:1474:9: 1474:38 error: unresolved import `num::dec2flt::ParseFloatError`. Could         not find `dec2flt` in `num` [E0432]
../libcore/num/mod.rs:1474 pub use num::dec2flt::ParseFloatError;
                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../libcore/num/mod.rs:1474:9: 1474:38 help: run `rustc --explain E0432` to see a detailed explanation
error: aborting due to previous error
Makefile:65: recipe for target '.obj/amd64/libcore.rlib' failed
make: *** [.obj/amd64/libcore.rlib] Error 101

Why use libcore

Just curious, why is it necessary to use libcore & rust nightly?

Possibly broken by update?

I can't compile the kernel for this reason.

rustc -O --cfg arch__amd64 --target=arch/amd64/target.json --cfg disable_float -C soft-float -o .obj/amd64/libcore.rlib --crate-type=lib --emit=link,dep-info ../libcore/lib.rs
../libcore/option.rs:172:10: 172:11 error: expected type, found `#`
../libcore/option.rs:172     Some(#[cfg_attr(not(stage0), stable(feature = "rust1", since = "1.0.0"))] T)
                                  ^
Makefile:72: recipe for target '.obj/amd64/libcore.rlib' failed
make: *** [.obj/amd64/libcore.rlib] Error 101

Everything seemed fine but I got this error. I used TRIPLE = make
This seems to have nothing to do with that though.

Can't compile with 1.2 nightly

I know that 1.0 nightly is recommended but I wanted to try 1.2 nightly. Get the following:

x86_64-elf-ld -o ../kernel.amd64.bin -T arch/amd64/link.ld -Map .obj/amd64/map.txt --gc-sections -z max-page-size=0x1000 .obj/amd64/start.o .obj/amd64/kernel.o .obj/amd64/libcore.rlib
.obj/amd64/kernel.o: In function `fmt::Write::write_fmt::Adapter$LT$$u27$a$C$$u20$T$GT$.Write::write_fmt::h12553647585220172932':
main.0.rs:(.text._ZN3fmt5Write9write_fmt36Adapter$LT$$u27$a$C$$u20$T$GT$.Write9write_fmt21h12553647585220172932E+0x5a): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
.obj/amd64/kernel.o: In function `fmt::_$RF$$u27$a$u20$T.Display::fmt::h317396037922038184':
main.0.rs:(.text._ZN3fmt25_$RF$$u27$a$u20$T.Display3fmt19h317396037922038184E+0x1c): undefined reference to `fmt::str.Display::fmt::h2af2fe2576bb6edfMGN'
.obj/amd64/kernel.o: In function `kmain':
main.0.rs:(.text.kmain+0x127): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
main.0.rs:(.text.kmain+0x13c): undefined reference to `fmt::num::i32.fmt..Display::fmt::h3c80d6522088f321zaM'
main.0.rs:(.text.kmain+0x204): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
main.0.rs:(.text.kmain+0x2a9): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
main.0.rs:(.text.kmain+0x37d): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
main.0.rs:(.text.kmain+0x422): undefined reference to `fmt::write::he06a9e58235fa9d6i5M'
make: *** [../kernel.amd64.bin] Error 1

If I remove the calls to log! everything compiles and runs. New to Rust and would like to try and get this compiling with 1.2 as a way to start learning Rust. Any ideas?

Couldn't build with rustc-1.4.0-nightly

I've tried to build kernel like in your README, but with some differences.

Firstly, I've tried to do make, but it fails with this error:

rustc -O --cfg arch__amd64 --target=arch/amd64/target.json --cfg disable_float -C soft-float -o .obj/amd64/libcore.rlib --crate-type=lib --emit=link,dep-info ../libcore/lib.rs
warning: ignoring specified output filename because multiple outputs were requested
LLVM ERROR: SSE register return with SSE disabled
Makefile:61: recipe for target '.obj/amd64/libcore.rlib' failed
make: *** [.obj/amd64/libcore.rlib] Error 1

So, I decided to apply patch from the root of repo (libcore_nofp.patch). It also fails:

patching file clone.rs
patching file default.rs
patching file fmt/mod.rs
patching file intrinsics.rs
patching file lib.rs
patching file num/flt2dec/decoder.rs
Hunk #1 succeeded at 12 with fuzz 2.
patching file num/mod.rs
Hunk #1 succeeded at 94 (offset 1 line).
Hunk #2 FAILED at 1403.
1 out of 2 hunks FAILED -- saving rejects to file num/mod.rs.rej
patching file ops.rs

And if I built it with wrong-applied patch it says me about 12 errors like ../libcore/num/dec2flt/rawfp.rs:144:1: 189:2 error: the traitnum::Floatis not implemented for the typef32[E0277]

I am using latest (today) nightly:
rustc --version
rustc 1.4.0-nightly (e2bebf32f 2015-08-14)

And libcore from rust-lang/rust repo.

Could you fix the patch, please?

Formatted output not working correctly

Replacing
log!("Hello world!\n");
with
log!("Hello world! {}\n", 1);
currently reboots the machine.
Looks to me like a triple fault is produced somehow. I have not investigated further. Doing
log!("Hello world! {}\n", "asdf");
seems to work tough.

thepowersgang / rust-barebones-kernel Goto Github PK

rust-barebones-kernel's People

Contributors

Stargazers

Watchers

Forkers

rust-barebones-kernel's Issues

VGA Text Mode double faults

Problem with naming of binutils tools

Pass multiboot address to kmain function

llvm_asm doesn't work in new nightly versions

Issue when building

error: unresolved import `num::dec2flt::ParseFloatError`

Why use libcore

Possibly broken by update?

Can't compile with 1.2 nightly

Couldn't build with rustc-1.4.0-nightly

Formatted output not working correctly

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