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Re: 2022.3rc5 [message #59568 is a reply to message #59567]

Tue, 07 February 2023 00:16

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Oblivion wrote on Mon, 06 February 2023 23:34

Hello Mirek,

It didn't work but I've got a more detailed error -instead of plain nullptr- by using clang_parseTranslationUnit2() function, which returns an enum, defined in CxErrorCode.h):
 /**
  * An AST deserialization error has occurred.
  */
 CXError_ASTReadError = 4
I'll dig deeper, but if this gives you any hints, please let me know.

Best regards,
Oblivion

https://groups.google.com/g/llvm-dev/c/Jh0bUJz7PHw?pli=1

Based on this, maybe you could try to pass the filename instead of "nullptr" in the call and remove it from commandline? Not the same error, but could be related.

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Re: 2022.3rc5 [message #59576 is a reply to message #59568]

Wed, 08 February 2023 17:55

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

Hello Mirek,

I've stripped the code, and wrote the below test:

struct Clang {

	CXIndex index = nullptr;
	CXTranslationUnit tu = nullptr;

	Clang()
	{
		MemoryIgnoreLeaksBlock __;
		index = clang_createIndex(0, 0);
	}

	void Parse()
	{
		Vector<const char*> args = {
			"-std=c++14",
			"-xc++",
			"-I/usr/include/llvm",
			"-I/usr/include/c++",
			"-I/usr/include/c++/12.2.1",
			"-I/usr/include/c++/12.2.1/x86_64-pc-linux-gnu",
			"-I/usr/include/c++/12.2.1/backward",
			"-I/usr/lib/clang/15.0.7/include",
			"-I/usr/include"
			"-I/usr/local/include",
		};

		tu = clang_parseTranslationUnit(
						index,
						"/home/user/test.cpp",
                        args,
                        args.GetCount(),
                        nullptr,
                        0,
                        CXTranslationUnit_None
                 );
	}

	~Clang()
	{
		MemoryIgnoreLeaksBlock __;
		if(tu) clang_disposeTranslationUnit(tu);
		clang_disposeIndex(index);
	}

CONSOLE_APP_MAIN
{
	StdLogSetup(LOG_COUT);
	Clang().Parse();
}

This works. clang_parseTranslationUnit() returns a translation unit handle every single time. (And the handle can be successfully used to traverse the AST.

However, the same code applied to TheIDE's Clang::Parse() method, with hard coded paths as is above,
clang_parseTranslationUnit() still fails to return a translation unit every single time.

I've tried both dynamic loading and static linking (LCLANG), tested both the above code & TheIDe on Linux 6.1.9/Clang 14 & 15

At this point I am almost sure that this is not a user-side problem, because I have installed vanilla ArchLinux on both a real hardware and on a VM (on windows machine), yet I get the same failure... Could this be a process env issue? Any ideas?

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Wed, 08 February 2023 17:57]

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Re: 2022.3rc5 [message #59577 is a reply to message #59576]

Wed, 08 February 2023 20:01

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Oblivion wrote on Wed, 08 February 2023 17:55

Hello Mirek,
However, the same code applied to TheIDE's Clang::Parse() method, with hard coded paths as is above,
clang_parseTranslationUnit() still fails to return a translation unit every single time.

Just idea: Try to put it at the start of theide's GUI_APP_MAIN. If it works there, it must be something between that point and Clang::Parse. If not, it some linking or global constructor problem (or something like that).

Mirek

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Re: 2022.3rc5 [message #59578 is a reply to message #59577]

Wed, 08 February 2023 20:33

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

Hello Mirek,

You're right,
I've just got an interesting result:

CONSOLE_APP_MAIN = clang_parseTranslationUnit() = OK
GUI_APP_MAIN = clang_parseTranslationUnit() = fails

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

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Re: 2022.3rc5 [message #59579 is a reply to message #59410]

Wed, 08 February 2023 20:50

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

I think we're getting somewhere:

It appears to be a GTK::GUI_APP_MAIN related problem, as clangd snippet seems to work fine with NOGTK flag.

edit: Yes, I can confirm this.TheIde (NOGTK) with clangd runs just fine!

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Wed, 08 February 2023 22:44]

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Re: 2022.3rc5 [message #59581 is a reply to message #59577]

Thu, 09 February 2023 17:41

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

HEllo Mirek,

The culprit seems to be gtk_init() function in InitGtkApp() function, line: 69.
If I call the clangd before that point, the parser works.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

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Re: 2022.3rc5 [message #59582 is a reply to message #59581]

Thu, 09 February 2023 19:16

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Oblivion wrote on Thu, 09 February 2023 17:41

HEllo Mirek,

The culprit seems to be gtk_init() function in InitGtkApp() function, line: 69.
If I call the clangd before that point, the parser works.

Best regards,
Oblivion

Cool but we definitely need to call it, right? Smile

Maybe it alters argv/environment?

Or maybe something with threads?

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Re: 2022.3rc5 [message #59584 is a reply to message #59410]

Thu, 09 February 2023 21:05

Silvan
Messages: 56
Registered: December 2014
Location: Trento (IT)

Member

maybe it is not related but I found a problem in the parser: https://www.ultimatepp.org/forums/index.php?t=msg&th=120 25&start=0&
In short: parser give error in theide but build normally.
It depend on the machine theide is running, just after unpacking.

Bye

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Re: 2022.3rc5 [message #59586 is a reply to message #59582]

Thu, 09 February 2023 23:20

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

I found the problem. It is env/LC_CTYPE variable.

My locale is set to tr_TR.UTF-8
For now, clangd doesn't seem to like it.
Changing LC_CTYPE to en_US did the trick for me, on all ArchLinux installations...

I am not entirely familiar with clangd's behaviour (yet) but if it requires LC_CTYPE to be ASCII en_xx values, maybe TheIDE should ensure that it is.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

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Re: 2022.3rc5 [message #59587 is a reply to message #59586]

Fri, 10 February 2023 08:49

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Oblivion wrote on Thu, 09 February 2023 23:20

I found the problem. It is env/LC_CTYPE variable.

My locale is set to tr_TR.UTF-8
For now, clangd doesn't seem to like it.
Changing LC_CTYPE to en_US did the trick for me, on all ArchLinux installations...

I am not entirely familiar with clangd's behaviour (yet) but if it requires LC_CTYPE to be ASCII en_xx values, maybe TheIDE should ensure that it is.

Best regards,
Oblivion

Tried something like putting something like this at the start of theide GUI_APP_MAIN?

GUI_APP_MAIN {
#ifdef PLATFORM_POSIX
SetEnv("LC_TYPE", "en_US.UTF8")
#endif

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Re: 2022.3rc5 [message #59593 is a reply to message #59587]

Fri, 10 February 2023 21:45

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

Quote:

Tried something like putting something like this at the start of theide GUI_APP_MAIN?

GUI_APP_MAIN {
#ifdef PLATFORM_POSIX
SetEnv("LC_TYPE", "en_US.UTF8")
#endif

I've already tried this, but it doesn't work. Also, after thinking about it, I am not sure this is a good idea. LC_CTYPE variable should be set by OS user, not by TheIDE. (Unless there is a clang specific config option to set). In the meantime I'll use the desktop file to set it for TheIDE...

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

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Re: 2022.3rc5 [message #59594 is a reply to message #59593]

Fri, 10 February 2023 23:44

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Oblivion wrote on Fri, 10 February 2023 21:45

Quote:
Tried something like putting something like this at the start of theide GUI_APP_MAIN?

GUI_APP_MAIN {
#ifdef PLATFORM_POSIX
SetEnv("LC_TYPE", "en_US.UTF8")
#endif

I've already tried this, but it doesn't work. Also, after thinking about it, I am not sure this is a good idea. LC_CTYPE variable should be set by OS user, not by TheIDE. (Unless there is a clang specific config option to set). In the meantime I'll use the desktop file to set it for TheIDE...

Best regards,
Oblivion

U++ does not care about LC_TYPE, so does not TheIDE. If anything, TheIDE needs it en_us utf8...

Global constructor then (INITBLOCK) then?

Mirek

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Re: 2022.3rc5 [message #59595 is a reply to message #59594]

Sat, 11 February 2023 07:48

Oblivion
Messages: 1092
Registered: August 2007

Senior Contributor

Quote:

Global constructor then (INITBLOCK) then?

Yes,

INITBLOCK {
	SetEnv("LC_CTYPE", "en_US.UTF-8");
}

This works.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

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Re: 2022.3rc5 [message #59602 is a reply to message #59595]

Mon, 13 February 2023 11:21

Silvan
Messages: 56
Registered: December 2014
Location: Trento (IT)

Member

Hi Oblivion,
I experienced a similar problem with the parser under Windows 10,
I tried to find out wicht enviromental variable could affect the behaviour of the ide, but with no success.
Have you an idea of the correspondent under windows of LC_CTYPE?
Thank you for any help,
Silvan

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