This PR transforms DirectHW into a modern, Apple Silicon-ready framework with robust CI/CD support and comprehensive documentation! 🎉 #4
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Added short info.
Fix for building on older versions of macOS.
- Only the config space read and write methods are tested. - Changed version to 1.6.0. DirectHW.xcodeproj - Builds for x86_64 and arm64e. It was created using Xcode 14.2. - arm64e (for Apple Silicon Macs) is not tested. DirectHW10.6.xcodeproj - Added. - Builds a DirectHW.kext that works for ppc, i386, x86_64. It was created in Mac OS X 10.6 using Xcode 3.2.6. The kext works for Mac OS X 10.4 to macOS 13. - Builds dynamic library and static library for ppc, ppc64, i386, x86_64. .gitignore - Added some old Xcode project files to ignore. DirectHW-Info.plist - Specify Mac OS X 10.4 library versions. - Add IOPCIFamily. - Remove OSBundleRequied. It's misspelled and not needed for this type of kext anyway. MacOSMacros.h - Includes TargetConditionals.h and AvailabilityMacros.h - It reports what architecture and SDK is being used during compiling. - Contains macros based on SDK and architecture, used for compatibility. DirectHW.h, DirectHW.c - Added MyIOConnectCallStructMethod which calls IOConnectMethodStructureIStructureO or IOConnectCallStructMethod depending on SDK and architecture and availability. DirectHW.hpp, DirectHW.cpp - Don't include pio.h. Instead, define the IO functions ourselves (except use explicitly sided UInt## types). This works around issues with certain compiler versions in Mac OS X 10.6. - Added Async mehods for ReadCpuId and ReadMem for completeness. - Make cpuid_t definition match that of DirectHW.c. - Added code to handle cross-endian calls (when ppc app from Rosetta calls i386 or x86_64 kernel). A UserClient checks kIOUserClientCrossEndianKey to test for cross-endian and sets kIOUserClientCrossEndianCompatibleKey to true if it can handle cross-endian. Otherwise a cross-endian user app won't be able to open the UserClient. DirectHW.hpp, DirectHW.cpp, DirectHW.c - Do not change struct size of map_t and iomem_t based on architecture. Instead, define both sizes, since the user app's architecture might not match the kernel architecture. This should make this DirectHW more compatible with original DirectHW. In the case of iomem_t, the 32 bit version is always chosen (matches original DirectHW) unless the size requested is greater than 4 (size 8 is new to upstream of this fork). For map_t, the 64-bit version is always used from user space (matches original DirectHW). - New read and write methods are added based on the code that Apple added in IOPCIFamily/tools/pciutils3.2.0.patch.c to OS X 10.10. All architectures should be able to use those methods. The original code operated on a specific IOPCIBridge. This code uses the segment number to choose a root IOPCIBridge. PowerPC Macs can have multiple root IOPCIBridges. Apple Silicon Macs can have multiple root IOPCIBridges (there's one for each Thunderbolt port for example). Intel Macs can too, but using the first root IOPCIBridge might access devices from other root IOPCIBridges (which means they must each use different bus numbers). DirectHW.c - Change kReadCpuID to kReadCpuId to match DirectHW.hpp DirectHW.cpp - Hacks for mp_rendezvous, mp_rendezvous_no_intrs, cpu_number for early SDKs or non-Intel architectures. - IOLog messages should have only one line feed at the end of the message. - Check for administrator privilege in initWithTask instead of start. - Remove assembly cr# check from start method. - ReadIO and WriteIO and PrepareMap now check the structure input and output structure sizes. Output structure size doesn't need to be set since it's always set correctly at entry. - ReadIO and WriteIO now check the structure sizes now read/write most significant 32-bits to offset+4. - For non-Intel architectures, ReadIO and WriteIO return an error because these use the Intel in and out instructions. Different methods should be used to do cross-platform PCI I/O memory accesses. - For non-Intel architectures, cpuid, rdmsr64, and ReadMemHelperFunction return 0 and wrmsr64 is a noop. - Replace printf with IOLog to be consistent. - Added code to do endian swap for config space registers of U4 HT Bridge device of Power Mac Quad G5.
pciutils has its own repository and make file.
Since there may be more than one project file.
First remove, then copy so that old files don't remain. Use -R instead of -r so that symlinks in framework remain as symlinks. Use directory as destination of copy so that cp doesn't copy into existing copy.
4 spaces.
Remove fancy 64 bit changes to the msr_t struct.
msr_t struct in original flashrom and original directhw is { hi, lo } so we'll stick with that.
Add KEEP_PRIVATE_EXTERNS setting for kext so link doesn't report missing symbols.
Add Xcode projects for Mac OS X 10.4 and 10.5 which limit the architectures according to Mac OS X version. 10.5 doesn't have x86_64. 10.4 doesn't have ppc64. 10.4 and 10.5 don't have /Library/Extensions so install to /System/Library/Extensions in that case. 10.4. and 10.5 make may stop on error so add || : Add a sudo touch for the Extensions folder after installing kext.
Use stabs instead of dwarf for debug info.
The intel-conf1 PCI access method of pciutils calls iopl which initializes the ioconnect_t in directhw. This does not happen when the other Mac PCI access methods are used (darwin, darwin2, darwin3) instead of intel-conf1. - Rename connect to darwin_connect so that it doesn't match any known method or constant elsewhere. - Initialize darwin_connect to 0 instead of -1 because it has unsigned type. - Lazy initialize darwin_connect.
Since later SDKs don't support stabs.
Since that is the default debug symbols type for 10.5 SDK.
Accessing non-existent PCI devices behind the DEC bridge of B&W G3 causes machine check exception which causes a kernel panic. We fix the problem by making DirectHW not do PCI config accesses for devices that don't exist in the IORegistry. We also work around a machine check for one of the registers of device 1191:0009 (an ACARD 6280M SCSI IDE controller that I have installed in my B&WW G3). Another option might be to patch AppleGracklePCI so that it uses ml_probe_read to do PCI config access. The machine check exception code does not cause a panic when ml_probe_read is doing the access. Writes would still cause a panic though and we don't know how many other PowerPC Macs might have this issue. The Power Mac Quad G5 (and probably all G5 Macs) do not have the issue. Intel Macs don't have the issue. Apple Silicon Macs might have the issue.
If level is zero then close the service.
joevt
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Sep 2, 2025
startergo
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Dec 21, 2025
This commit addresses all technical issues raised by Joevt in PR joevt#4 review: Technical Fixes: • Fixed sw_vers command typo in CI workflow (.github/workflows/objective-c-xcode.yml) • Added conditional compilation for IOKit APIs with proper SDK version detection - kIOMainPortDefault for macOS 10.12+ SDKs - kIOMasterPortDefault for older SDKs compatibility • Restored legacy macOS compatibility (IOConnectMethodStructureIStructureO) - Preserves support for Mac OS X 10.4 and earlier - Maintains compatibility for ppc, ppc64, i386 architectures • Fixed Makefile architecture and SDK configuration - Restored missing version variables (is10_4 through is10_8) - Added arm64 support for universal binaries (Big Sur+) - Restored important makefile comment about assignment lines • Resolved duplicate postinstall scripts inconsistency - Both scripts now use /Library/Extensions for modern macOS - Ensures SIP compatibility All changes maintain backward compatibility while adding Apple Silicon support. Build tested successfully on macOS 15.6 ARM64 producing universal binaries. Note: Commit history cleanup (rebase) should be done separately to address the f727632 fixup request due to README merge conflicts.
startergo
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Dec 21, 2025
Technical fixes addressing all Joevt's feedback in PR joevt#4: • Fixed sw_vers typo in CI workflow (swvers → sw_vers) • Added conditional compilation for kIOMainPortDefault/kIOMasterPortDefault - kIOMainPortDefault for macOS 10.12+ SDKs - kIOMasterPortDefault for older SDK compatibility • Restored legacy macOS compatibility (IOConnectMethodStructureIStructureO) - Preserves Mac OS X 10.4+ support - Maintains ppc, ppc64, i386 architecture compatibility • Fixed Makefile architecture and SDK issues - Restored missing version variables (is10_4 through is10_8) - Added arm64 support for universal binaries (Big Sur+) - Restored important makefile comment • Resolved duplicate postinstall scripts - Both scripts now use /Library/Extensions for modern macOS - Ensures SIP compatibility All changes maintain backward compatibility while adding Apple Silicon support. Build tested successfully on macOS 15.6 ARM64 with universal binaries.
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Pull request overview
Copilot reviewed 12 out of 14 changed files in this pull request and generated 12 comments.
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Pull request overview
Copilot reviewed 12 out of 14 changed files in this pull request and generated 5 comments.
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- Enhanced DirectHW for Apple Silicon support - Improved CI/CD workflow with better error handling - Fixed build paths and artifact discovery - Cleaned up Makefile and postinstall scripts - Added comprehensive documentation updates - Resolved various syntax errors and edge cases
Technical fixes addressing all Joevt's feedback in PR joevt#4: • Fixed sw_vers typo in CI workflow (swvers → sw_vers) • Added conditional compilation for kIOMainPortDefault/kIOMasterPortDefault - kIOMainPortDefault for macOS 10.12+ SDKs - kIOMasterPortDefault for older SDK compatibility • Restored legacy macOS compatibility (IOConnectMethodStructureIStructureO) - Preserves Mac OS X 10.4+ support - Maintains ppc, ppc64, i386 architecture compatibility • Fixed Makefile architecture and SDK issues - Restored missing version variables (is10_4 through is10_8) - Added arm64 support for universal binaries (Big Sur+) - Restored important makefile comment • Resolved duplicate postinstall scripts - Both scripts now use /Library/Extensions for modern macOS - Ensures SIP compatibility All changes maintain backward compatibility while adding Apple Silicon support. Build tested successfully on macOS 15.6 ARM64 with universal binaries.
- Fix IOKit API fallback logic to use weak linking instead of error-based fallback - Fix Makefile conditional pattern consistency (use ifneq throughout) - Fix CI mock artifact creation - make CI fail when real builds fail - Fix CI error output suppression - capture build errors for debugging - Clean up README platform table by removing outdated restrictions - Update CI status messages to reflect new failure behavior
startergo
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to startergo/directhw
that referenced
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Dec 21, 2025
Technical fixes addressing all Joevt's feedback in PR joevt#4: • Fixed sw_vers typo in CI workflow (swvers → sw_vers) • Added conditional compilation for kIOMainPortDefault/kIOMasterPortDefault - kIOMainPortDefault for macOS 10.12+ SDKs - kIOMasterPortDefault for older SDK compatibility • Restored legacy macOS compatibility (IOConnectMethodStructureIStructureO) - Preserves Mac OS X 10.4+ support - Maintains ppc, ppc64, i386 architecture compatibility • Fixed Makefile architecture and SDK issues - Restored missing version variables (is10_4 through is10_8) - Added arm64 support for universal binaries (Big Sur+) - Restored important makefile comment • Resolved duplicate postinstall scripts - Both scripts now use /Library/Extensions for modern macOS - Ensures SIP compatibility All changes maintain backward compatibility while adding Apple Silicon support. Build tested successfully on macOS 15.6 ARM64 with universal binaries.
… source of truth - Add critical safety features to prevent nested directory creation during kext moves - Remove redundant pkg_scripts/postinstall duplicate script - Ensure CI workflow uses consistent postinstall across all component packages - Fix directory nesting issue that could cause installation failures - Maintain 107-line comprehensive postinstall script as authoritative source Changes: - Added rm -rf checks before moving kexts to prevent nested directories - Removed duplicate pkg_scripts/postinstall that was causing inconsistency - DirectHW/postinstall now serves as single source of truth for CI packaging
- Reset README.md to clean version from documentation overhaul commit - Remove all merge conflict markers (<<<<<<< HEAD, =======, >>>>>>> etc.) - Restored proper 580-line comprehensive README without conflicts - Maintains all enhanced documentation and technical content
- Use weak linking for kIOMainPortDefault and kIOMasterPortDefault - Create kOurMasterPort compatibility macro as suggested by Joevt - Prefer kIOMasterPortDefault for maximum SDK compatibility - Fallback to kIOMainPortDefault when kIOMasterPortDefault unavailable - Ensures compatibility with all macOS versions (10.2.8+) and architectures - Supports PPC targets and old SDKs while working with modern SDKs - Addresses compatibility concerns raised in PR review Technical details: - kIOMainPortDefault exists since macOS 12.1 SDK - kIOMasterPortDefault exists since macOS 10.2.8 SDK - New SDKs cannot build PPC/PPC64 targets - Weak linking enables universal compatibility across all platforms
- Added version detection variables for Sonoma (14), Ventura (13), Monterey (12) - Added corresponding build directories: build/build14, build/build13, build/build12 - Consolidated ARM64 support for macOS 11+ (Big Sur through Sequoia) - Fixed inconsistency where macOS 11 and 15 had separate configs but 12-14 were missing - All modern macOS versions (11+) now use universal x86_64 + arm64 binaries - Updated both libs and libs-fallback sections for consistency This addresses Joevt's feedback about missing configurations between macOS 11 and 15.
- Add build directory creation before xcodebuild log writing - Fix CI error: "build/build15/xcode_build.log: No such file or directory" - Add robust macOS version detection error handling in Makefile - Remove redundant sdk assignment for Sequoia configuration - Remove duplicate postinstall script (pkg_scripts/postinstall) - Clean up test installation script - Update CI documentation to reflect no mock artifacts policy
- Add build machine architecture detection for universal binary decisions - Make universal binaries conditional on ARM64 hardware only (as requested) - Remove Catalina 32-bit support (Catalina doesn't have 32-bit libraries) - Update deployment targets to be conditional based on macOS version - Fix architecture-specific build configurations for different macOS versions
- Prioritize build/buildlatest/Release in search order (matches Makefile) - Add fallback symlink for consistency when Xcode succeeds - Update all artifact upload paths to check buildlatest first - Fix CI status summary to check both build directories Fixes job failure where Xcode build succeeds but artifacts aren't found in expected location due to build directory naming mismatch.
- Change 'make main' to 'make libs' to build the required library - Add debug step to show actual build outputs and directory structure - This should resolve the issue where no build artifacts are found The 'main' target builds Xcode projects but 'libs' target builds the library artifacts that the packaging step expects to find.
- Prioritize DirectHW.pkg (distribution package) copying first - Fallback to individual component packages if distribution package missing - Remove duplicate package copying logic that was causing issues - Ensure DMG creation finds the available artifacts from successful builds The workflow was creating DirectHW.pkg successfully but DMG creation was failing because it wasn't checking for the distribution package in the right location.
Owner
|
There are 17 commits for a new file Each line of a file in a pull request shouldn't have more than one commit unless the commits do two different things. A commit that fixes a bug in a previous commit of the same pull request should be subjected to a rebase/fixup into the previous commit. Did an AI write the commit descriptions? If you don't want to work further on this, then I'll take the pull request as is and do the rebase myself. |
Author
Yes sorry about that. I actually realized it may be too much. Sure I will squash the history, but do you actually want it there? I can remove it if it is not desirable. |
Owner
I think I don't want it, unless you can convince me that I should want it. |
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📝 Recent Commits to Include:
67997c6 - fix: Resolve CI workflow syntax error in package creation
bb3a908 - feat: Enhance DirectHW for Apple Silicon and improve CI/CD
6d8239f - docs: Comprehensive DirectHW documentation overhaul
48e13fd - Reorganized README with collapsible sections for better readability
ec9de45 - Security and robustness improvements for AppleScript runners