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RWTH-OS / eduOS-rs

A teaching operating system written in Rust
https://rwth-os.github.io/eduOS-rs/
Apache License 2.0
434 stars 27 forks source link

LLVM ERRORS #12

Closed ghost closed 3 years ago

ghost commented 3 years ago

I can't build the system because LLVM TOOLS returns errors about unsupported assembler prompts. How to fix it?

jounathaen commented 3 years ago

Could you provide more details on the errors? Which errors? What did you do to build the system? (And sorry for the late reply.)

BaderSZ commented 3 years ago

I think this is the issue they're talking about, when building with the latest toolchain nightly-x86_64-unknown-linux-gnu, rustc 1.57.0-nightly (8f8092cc3 2021-09-28). You can build with the nightly-2021-02-01-x86_64-unknown-linux-gnu toolchain which works for me.

See https://github.com/rust-lang/rust/issues/72016#issuecomment-745517721 for more info.

Error log: 

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:17:13
   |
17 |     movabsq $0x8000000000, %rax
   |             ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:18:9
   |
18 |     and $0xfff, %rdi
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:19:8
   |
19 |     or %rax, %rdi
   |        ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:20:9
   |
20 |     mov $0x23, %ecx
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:21:9
   |
21 |     mov $0x2b,%edx
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:23:9
   |
23 |     mov %rcx, %ds
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:24:9
   |
24 |     mov %rcx, %es
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:25:11
   |
25 |     pushq %rcx
   |           ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:26:13
   |
26 |     movabsq $0x8000400000, %rax
   |             ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:27:11
   |
27 |     pushq %rax
   |           ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:29:11
   |
29 |     pushq %rdx
   |           ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:30:11
   |
30 |     pushq %rdi
   |           ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:52:7
   |
52 |     push %rax
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:53:7
   |
53 |     push %rcx
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:54:7
   |
54 |     push %rdx
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:55:7
   |
55 |     push %rbx
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:56:7
   |
56 |     sub  $8, %rsp    // ignore rsp
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:57:7
   |
57 |     push %rbp
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:58:7
   |
58 |     push %rsi
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:59:7
   |
59 |     push %rdi
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:60:7
   |
60 |     push %r8
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:61:7
   |
61 |     push %r9
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:62:7
   |
62 |     push %r10
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:63:7
   |
63 |     push %r11
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:64:7
   |
64 |     push %r12
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:65:7
   |
65 |     push %r13
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:66:7
   |
66 |     push %r14
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:67:7
   |
67 |     push %r15
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:69:12
   |
69 |     rdfsbaseq %rax
   |               ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:70:7
   |
70 |     push %rax
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:72:12
   |
72 |     rdgsbaseq %rax
   |               ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:73:7
   |
73 |     push %rax
   |          ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:76:6
   |
76 |     mov %rsp, (%rdi)
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:77:6
   |
77 |     mov %rsi, %rsp
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:79:6
   |
79 |     mov %cr0, %rax
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:80:5
   |
80 |     or $8, %rax
   |        ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:81:6
   |
81 |     mov %rax, %cr0
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:85:6
   |
85 |     pop %rax
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:86:12
   |
86 |     wrgsbaseq %rax
   |               ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:87:6
   |
87 |     pop %rax
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:88:12
   |
88 |     wrfsbaseq %rax
   |               ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:89:6
   |
89 |     pop %r15
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:90:6
   |
90 |     pop %r14
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:91:6
   |
91 |     pop %r13
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:92:6
   |
92 |     pop %r12
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:93:6
   |
93 |     pop %r11
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:94:6
   |
94 |     pop %r10
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:95:6
   |
95 |     pop %r9
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:96:6
   |
96 |     pop %r8
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:97:6
   |
97 |     pop %rdi
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:98:6
   |
98 |     pop %rsi
   |         ^

error: unknown token in expression
   |
note: instantiated into assembly here
  --> <inline asm>:99:6
   |
99 |     pop %rbp
   |         ^

error: unknown token in expression
    |
note: instantiated into assembly here
   --> <inline asm>:100:6
    |
100 |     add $8, %rsp
    |         ^

error: unknown token in expression
    |
note: instantiated into assembly here
   --> <inline asm>:101:6
    |
101 |     pop %rbx
    |         ^

error: unknown token in expression
    |
note: instantiated into assembly here
   --> <inline asm>:102:6
    |
102 |     pop %rdx
    |         ^

error: unknown token in expression
    |
note: instantiated into assembly here
   --> <inline asm>:103:6
    |
103 |     pop %rcx
    |         ^

error: unknown token in expression
    |
note: instantiated into assembly here
   --> <inline asm>:104:6
    |
104 |     pop %rax
    |         ^
warning: `eduos-rs` (lib) generated 2 warnings (1 duplicate)
error: could not compile `eduos-rs` due to 57 previous errors; 2 warnings emitted
asquared31415 commented 3 years ago

The correct fix is to use options(att_syntax) in the global_asm! here (and anywhere else the at&t syntax is used for assembly)

jounathaen commented 3 years ago

That's true, but that would be part of a larger rework. We'll yet have to decide on the future of this project (as there already exists a major rework of it) and on how much effort we'll put into it so for now this hotfix should be sufficient. But PRs are always welcome :slightly_smiling_face: