compile with xcode issus (show wifi but not connect)

[alighafourian]

Have You Read Our Docs
Yes

Are You Reporting A Bug
Yes
Environment

• Kext Version:
• WiFi Card Model:7265N
• PCI Product ID: (0x8086, 0x5002)
• macOS Version: 14.1

Description
I download code file and compiler . compile done but show wifi and dosnt connect

Bug Report Archive

kext log:
Log_2023-10-24_12-41-37.log

Kext Download Source

[ShroomKing]

Same when building from source with latest Xcode, GitHub release build works fine though.

[alighafourian]

@ShroomKing
only way fork on github and run xcode Workflow

[diepeterpan]

I just did a test, downloaded the source, compiled it, and verified the resulting .kext in Sonoma and everything seems fine. Here is a breakdown of how I compiled it. It is just my way, not necessarily the correct way, but it worked :-)

1)    Download and install Xcode from the App Store

2)    Download the latest OpenIntelWireless source
If you prefer using Git command line or Desktop app and am comfortable using them then by all means use it to download the source and fork where required

3)    Unzip the source OpenIntelWireless to e.g. itlwm-master



4)    Download the latest MacKernelSDK

5)    Unzip to source to OpenIntelWireless root e.g. itlwm-master
PS. Ensure it is named MacKernelSDK

6)    Now open itlwm.xcodeproj using XCode



7)    Click menu item [Product] and choose [Build] It should build without errors, at least mine did

8)    By default it seems to build itlwm.kext

9)    To build AirportItlwm change the scheme in the [Product] menu to [AirportItlwm (all)]

I did test the resulting kext and it is working.

[alighafourian]

@diepeterpan
ok i close issus

[ShroomKing]

I did more tests.
This appears to be a compiler code optimisation problem.

When creating a debug build it uses optimisation level 0 and the kext works.

But when creating an optimised build (Release build type / Product->Archive) the kext can't connect to wifi.

The highest optimisation level that works right now is 1, so I assume some flag in level 2 is breaking the code (more info here: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html)

You can disable optimisation flags by using -fno-(flag-name) so for example to disable -falign-functions add -fno-align-functions to CFLAGS, this way we can keep the other optimisations but I don't know if there's a better way to debug this than trying to disable all the flags one by one.

[usr-sse2]

The highest optimisation level that works right now is 1, so I assume some flag in level 2 is breaking the code (more info here: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html)

It's better to look options in Clang documentation because Xcode compiles with Clang, not GCC.

[zxystd]

The highest optimisation level that works right now is 1, so I assume some flag in level 2 is breaking the code (more info here: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html)

It's better to look options in Clang documentation because Xcode compiles with Clang, not GCC.

@usr-sse2 You are right, but I don't have the time and environment(no Sonoma/new XCode) to investigate this, if you have discoveries please let me know or open an PR, thank you!

[zxystd]

From the log I can see the root issue is that the optimization breaks function ieee80211_get_assoc_req, with invalid assoc request(RSN invalid), for what's the differences I can't see with the decompiled code.

[vanyasem]

@zxystd I can confirm that the issue is resolved with the latest commits. Release builds are now able to connect to Wi-Fi successfully. Tested on Sonoma 14.4

[alighafourian]

@zxystd I can confirm that the issue is resolved with the latest commits. Release builds are now able to connect to Wi-Fi successfully. Tested on Sonoma 14.4

Compile with xcode app
If use terminal for build wifi can not connect but show
If use xcode app work good