linux-postmarketos-gs101: switch to LLVM

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7345>

device/testing/linux-postmarketos-gs101/APKBUILD

@@ -1,7 +1,7 @@
 maintainer="Ingo Reitz <9l@9lo.re>"
 pkgname=linux-postmarketos-gs101
 pkgver=6.18_rc2
-pkgrel=0
+pkgrel=1
 pkgdesc="Google gs101 (Pixel 6 Series) close-to-mainline kernel"
 arch="aarch64"
 _carch="arm64"
@@ -10,17 +10,15 @@ url="https://kernel.org"
 license="GPL-2.0-only"
 options="!strip !check !tracedeps pmb:cross-native pmb:kconfigcheck-community"
 makedepends="
-	bash
-	bc
 	bison
+	clang
 	findutils
 	flex
+	lld
+	llvm
 	lz4
 	openssl-dev
 	perl
-	gmp-dev
-	mpc1-dev
-	mpfr-dev
 	zstd
 "
 
@@ -41,7 +39,7 @@ prepare() {
 
 build() {
 	unset LDFLAGS
-	make ARCH="$_carch" CC="${CC:-gcc}" \
+	make ARCH="$_carch" LLVM=1 \
 		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
 }
 
@@ -50,6 +48,7 @@ package() {
 
 	make Image.lz4 modules_install dtbs_install \
 		ARCH="$_carch" \
+		LLVM=1 \
 		INSTALL_PATH="$pkgdir"/boot \
 		INSTALL_MOD_PATH="$pkgdir" \
 		INSTALL_MOD_STRIP=1 \
@@ -65,5 +64,5 @@ package() {
 
 sha512sums="
 44cfb483162496f3815362ab7e782367fd6a53e8d9f989078087b0bb33522c2783953378a42225813a11d9ff0c43bbf3302fca4b64b567194e25b4dc546b7a0d  linux-postmarketos-gs101-2bce1f7172c8ee7d8e73d027c3f4963282b918f3.tar.gz
-8bd27025c1d45225af52d20db269306aa1fe7885063d0554451e0e07fab7478c5452d0b37c330f518be5491ecf07f1637e8cd181a9b027fe83dcbce5b35b3b59  config-postmarketos-gs101.aarch64
+6c23b5479256941e504d5ac1659477d4ec44b3fec0b0257a882ddef99d883c1f3dc9c64b6bade473c0128a252045ea80d661e6b945390ea8b0ebd1bc48fe0f14  config-postmarketos-gs101.aarch64
 "

device/testing/linux-postmarketos-gs101/config-postmarketos-gs101.aarch64

@@ -2,15 +2,15 @@
 # Automatically generated file; DO NOT EDIT.
 # Linux/arm64 6.18.0-rc2 Kernel Configuration
 #
-CONFIG_CC_VERSION_TEXT="aarch64-alpine-linux-musl-gcc (Alpine 15.2.0) 15.2.0"
+CONFIG_CC_VERSION_TEXT="Alpine clang version 21.1.2"
-CONFIG_CC_IS_GCC=y
+CONFIG_GCC_VERSION=0
-CONFIG_GCC_VERSION=150200
+CONFIG_CC_IS_CLANG=y
-CONFIG_CLANG_VERSION=0
+CONFIG_CLANG_VERSION=210102
-CONFIG_AS_IS_GNU=y
+CONFIG_AS_IS_LLVM=y
-CONFIG_AS_VERSION=24500
+CONFIG_AS_VERSION=210102
-CONFIG_LD_IS_BFD=y
+CONFIG_LD_VERSION=0
-CONFIG_LD_VERSION=24500
+CONFIG_LD_IS_LLD=y
-CONFIG_LLD_VERSION=0
+CONFIG_LLD_VERSION=210102
 CONFIG_RUSTC_VERSION=0
 CONFIG_RUSTC_LLVM_VERSION=0
 CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
@@ -172,11 +172,9 @@ CONFIG_UCLAMP_BUCKETS_COUNT=5
 CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
 CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
 CONFIG_CC_HAS_INT128=y
-CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
+CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
 CONFIG_GCC10_NO_ARRAY_BOUNDS=y
-CONFIG_CC_NO_ARRAY_BOUNDS=y
 CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
-CONFIG_CC_NO_STRINGOP_OVERFLOW=y
 CONFIG_ARCH_SUPPORTS_INT128=y
 CONFIG_NUMA_BALANCING=y
 CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
@@ -298,7 +296,7 @@ CONFIG_CRASH_DUMP=y
 
 CONFIG_ARM64=y
 CONFIG_RUSTC_SUPPORTS_ARM64=y
-CONFIG_GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_ARGS=y
+CONFIG_CLANG_SUPPORTS_DYNAMIC_FTRACE_WITH_ARGS=y
 CONFIG_64BIT=y
 CONFIG_MMU=y
 CONFIG_ARM64_CONT_PTE_SHIFT=4
@@ -487,6 +485,8 @@ CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY=y
 CONFIG_ARM64_TAGGED_ADDR_ABI=y
 CONFIG_COMPAT=y
 CONFIG_KUSER_HELPERS=y
+CONFIG_COMPAT_VDSO=y
+CONFIG_THUMB2_COMPAT_VDSO=y
 # CONFIG_COMPAT_ALIGNMENT_FIXUPS is not set
 # CONFIG_ARMV8_DEPRECATED is not set
 
@@ -528,6 +528,7 @@ CONFIG_ARM64_TLB_RANGE=y
 #
 CONFIG_AS_HAS_ARMV8_5=y
 CONFIG_ARM64_BTI=y
+CONFIG_ARM64_BTI_KERNEL=y
 CONFIG_CC_HAS_BRANCH_PROT_PAC_RET_BTI=y
 CONFIG_ARM64_E0PD=y
 CONFIG_ARM64_AS_HAS_MTE=y
@@ -729,8 +730,13 @@ CONFIG_ARCH_SUPPORTS_SHADOW_CALL_STACK=y
 # CONFIG_SHADOW_CALL_STACK is not set
 CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
 CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
+CONFIG_HAS_LTO_CLANG=y
 CONFIG_LTO_NONE=y
+# CONFIG_LTO_CLANG_FULL is not set
+# CONFIG_LTO_CLANG_THIN is not set
 CONFIG_ARCH_SUPPORTS_CFI=y
+# CONFIG_CFI is not set
+CONFIG_HAVE_CFI_ICALL_NORMALIZE_INTEGERS=y
 CONFIG_HAVE_CONTEXT_TRACKING_USER=y
 CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
 CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
@@ -797,12 +803,9 @@ CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
 # end of GCOV-based kernel profiling
 
 CONFIG_HAVE_GCC_PLUGINS=y
-CONFIG_GCC_PLUGINS=y
-# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
 CONFIG_FUNCTION_ALIGNMENT_4B=y
 CONFIG_FUNCTION_ALIGNMENT_8B=y
 CONFIG_FUNCTION_ALIGNMENT=8
-CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT=y
 CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT=y
 # end of General architecture-dependent options
 
@@ -7035,6 +7038,7 @@ CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
 CONFIG_INIT_STACK_NONE=y
 # CONFIG_INIT_STACK_ALL_PATTERN is not set
 # CONFIG_INIT_STACK_ALL_ZERO is not set
+CONFIG_CC_HAS_SANCOV_STACK_DEPTH_CALLBACK=y
 # CONFIG_KSTACK_ERASE is not set
 # CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
 # CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
@@ -7056,9 +7060,9 @@ CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
 # CONFIG_BUG_ON_DATA_CORRUPTION is not set
 # end of Hardening of kernel data structures
 
+CONFIG_CC_HAS_RANDSTRUCT=y
 CONFIG_RANDSTRUCT_NONE=y
 # CONFIG_RANDSTRUCT_FULL is not set
-# CONFIG_RANDSTRUCT_PERFORMANCE is not set
 # end of Kernel hardening options
 # end of Security options
 
@@ -7494,9 +7498,7 @@ CONFIG_DEBUG_INFO_NONE=y
 # CONFIG_DEBUG_INFO_DWARF5 is not set
 CONFIG_FRAME_WARN=2048
 # CONFIG_STRIP_ASM_SYMS is not set
-# CONFIG_READABLE_ASM is not set
 # CONFIG_HEADERS_INSTALL is not set
-# CONFIG_DEBUG_SECTION_MISMATCH is not set
 CONFIG_SECTION_MISMATCH_WARN_ONLY=y
 CONFIG_ARCH_WANT_FRAME_POINTERS=y
 CONFIG_FRAME_POINTER=y
@@ -7572,6 +7574,7 @@ CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
 # CONFIG_KASAN is not set
 CONFIG_HAVE_ARCH_KFENCE=y
 # CONFIG_KFENCE is not set
+CONFIG_HAVE_KMSAN_COMPILER=y
 # end of Memory Debugging
 
 # CONFIG_DEBUG_SHIRQ is not set