Add 32-bit ARM (armeabi-v7a) Android target support#33
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jappeace-sloth wants to merge 1 commit intojappeace:masterfrom
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Add 32-bit ARM (armeabi-v7a) Android target support#33jappeace-sloth wants to merge 1 commit intojappeace:masterfrom
jappeace-sloth wants to merge 1 commit intojappeace:masterfrom
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Enables haskell-mobile to cross-compile for armv7a-android, targeting Wear OS devices that ship 32-bit ARM userspace only (e.g. OnePlus Watch 3). Key changes: - Parameterize nix/lib.nix, cross-deps.nix, android.nix with androidArch - Multi-arch APK support in mkApk (accepts sharedLibs list) - Update nixpkgs pin for GHC LLVM backend fix (NixOS/nixpkgs#440774) - Patch nixpkgs compiler-rt for armv7a: add to ARM32 arch set, fix baremetal arch detection, exclude os_version_check.c (no pthread.h) - Patch LLVM package set: use libstdcxxClang (no libcxx dep) for Android to avoid unbuildable libcxx bootstrap (GNU ld.bfd can't link Android libs) - Disable profiled libraries for armv7a (LLVM ARM backend llc crash in ARMAsmPrinter::emitXXStructor) Closes jappeace#28 Prompt: continue implementing armv7a-android support (issue jappeace#28), fixing libcxx bootstrap linker issue and LLVM profiling crash Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Apr 6, 2026
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Superseded by #34 which was already merged and contains all commits from this PR. |
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Summary
androidArchparameter (default"aarch64") to support both arm64-v8a and armeabi-v7a targetsmkApknow accepts asharedLibslist of{ lib, abiDir }for bundling multiple architecturescompiler-rtfor armv7a: add to ARM32 arch set, fix baremetal arch detection (COMPILER_RT_DEFAULT_TARGET_ONLY), excludeos_version_check.c(nopthread.hin baremetal)libstdcxxClang(no libcxx dependency) for Android targets, avoiding unbuildable libcxx bootstrap (GNUld.bfdcan't link Android libraries due to zstd compression, path mismatches)llccrash inARMAsmPrinter::emitXXStructor)broken = useLLVMin GHC (haskell.compiler.ghc{948,967,984,9102,9103,9121,9122}: backport patches for LLVM support NixOS/nixpkgs#440774)Closes #28
Test plan
nix-build nix/android.nix— aarch64 (default) builds successfullynix-build nix/android.nix --arg androidArch '"armv7a"'— armv7a builds successfullynix-build nix/ci.nix -A native -A android-aarch64 -A android-armv7a— all CI targets passlib/arm64-v8a/andlib/armeabi-v7a/nix-build nix/apk.nix) — needs i686-linux builder support for Android SDK tools🤖 Generated with Claude Code