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llvm-clang; function/variable names containing unicode charactrs


llvm-clang; function/variable names containing unicode charactrs

By : tithe
Date : November 21 2020, 07:01 PM
Any of those help Clang 3.0 does not support Unicode characters in identifiers. The latest trunk has partial support for this, and I believe someone is currently working to implement this fully.
As for when Clang does support them, take a look at C++11 (n3242) 2.11 [lex.name].
code :


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Unicode/special characters in variable names in clang not allowed?

Unicode/special characters in variable names in clang not allowed?


By : William Chen
Date : March 29 2020, 07:55 AM
seems to work fine , So the clang document says (emphasis mine):
code :
¨, ª, ­,

¯, ²-µ, ·-º, ¼-¾, À-Ö, Ø-ö, ø-ÿ

Ā-ᙿ, ᚁ-᠍, ᠏-῿ ​-‍, ‪-‮, ‿-⁀, ⁔,

⁠- ⁰-↏, ①-⓿, ❶-➓, Ⰰ-ⷿ, ⺀-⿿

〄-〇, 〡-〯, 〱-〿

぀-퟿ 豈-ﴽ, ﵀-﷏,

ﷰ-﹄, ﹇-�

-, -, -, -, -, -, -, -, -, -, -, -, -, -
clang plugin compilation error: undefined symbols llvm::Registry<clang::PluginASTAction, llvm::RegistryTraits<clan

clang plugin compilation error: undefined symbols llvm::Registry<clang::PluginASTAction, llvm::RegistryTraits<clan


By : Rob Waibel
Date : March 29 2020, 07:55 AM
hop of those help? I'm sure you're long since past needing this, but I ran into a similar problem. Here's the answer to your specific question as well as the command I use to figure out the answer. Go into the llvm/clang lib directory and type:
code :
$ nm -o *.a |grep Registry |grep PluginASTAction |cut -d ':' -f 1 |uniq
libclangFrontend.a
libclangFrontendTool.a
clang -Xclang -cc1 -O3 mips.c -emit-llvm , clang error: -emit-llvm cannot be used when linking

clang -Xclang -cc1 -O3 mips.c -emit-llvm , clang error: -emit-llvm cannot be used when linking


By : omontito
Date : March 29 2020, 07:55 AM
it fixes the issue As written in the error message, you can only compile when emitting LLVM IR, not link.
Either add -c for the bitcode or -S for the readable form to your command line:
code :
clang -Xclang -cc1 -O3 mips.c -emit-llvm -S
How to export function names and variable names using GCC or clang?

How to export function names and variable names using GCC or clang?


By : shaina Bajaj
Date : October 30 2020, 05:01 AM
seems to work fine So you want to hide/mask the names of symbols in your binary. You've decided that, to do this, you need to get a list of them so that you can create a script to modify them. Well, you could get that list with nm but you don't need any of that (rewriting names inside a compiled binary? oof… recipe for disaster).
Instead, just do what everybody does in a release build and strip the symbols! You'll see a much smaller binary, too. Of course this doesn't prevent reverse engineering (nothing does), though it arguably makes said task more difficult.
How to save the variable name when use clang to generate llvm ir?

How to save the variable name when use clang to generate llvm ir?


By : Tyler Suderman
Date : March 29 2020, 07:55 AM
To fix this issue Actually dropping of variable names is a feature and needs to be activated with -discard-value-names. Clang in a release build does this by its own (a self compiled clang in debug mode not).
You can circumvent it with
code :
clang <your-command-line> -###
clang -fno-discard-value-names <your-command-line>
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