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llvm-objdump: Use two hyphens in flags to objdump #270

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merged 1 commit into from Oct 12, 2020
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llvm-objdump: Use two hyphens in flags to objdump #270

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llvm-objdump: Use two hyphens in flags to objdump 
LLVM 11 changed the behavior of these tools.
See #269
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@AlexanderDhoore
AlexanderDhoore committed Oct 11, 2020
commit da2ddb9d7ce9c341baf8e66ae872b434aaa3d97c
2 changes: 1 addition & 1 deletion src/start/exceptions.md
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Expand Up @@ -249,7 +249,7 @@ If you look at the disassembly of the program:


``` console
$ cargo objdump --bin app --release -- -d -no-show-raw-insn -print-imm-hex
$ cargo objdump --bin app --release -- -d --no-show-raw-insn --print-imm-hex
(..)
ResetTrampoline:
8000942: movw r0, #0xfffe
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5 changes: 4 additions & 1 deletion src/start/qemu.md
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Expand Up @@ -259,9 +259,12 @@ is.
`cargo-objdump` can be used to disassemble the binary.

```console
cargo objdump --bin app --release -- -disassemble -no-show-raw-insn -print-imm-hex
cargo objdump --bin app --release -- --disassemble --no-show-raw-insn --print-imm-hex
```

> **NOTE** if the above command complains about `Unknown command line argument` see
> the following bug report: https://github.com/rust-embedded/book/issues/269

> **NOTE** this output can differ on your system. New versions of rustc, LLVM
> and libraries can generate different assembly. We truncated some of the instructions
> to keep the snippet small.
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