From ff6d4099a05b506c6e4110ac0d32102398b70088 Mon Sep 17 00:00:00 2001
From: Pratham Patel <thefirst1322@gmail.com>
Date: Sun, 8 Oct 2023 12:21:11 +0530
Subject: [PATCH] switch from gcc to llvm

---
 kernel-lts-tfg.spec         |  2 +-
 kernel-next-tfg.spec        |  2 +-
 kernel-opi5-tfg.spec        |  2 +-
 kernel-rc-tfg.spec          |  2 +-
 kernel-stable-tfg.spec      |  2 +-
 kernel-vendor-opi5-tfg.spec |  2 +-
 master.inc                  | 17 ++++++++++-------
 7 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/kernel-lts-tfg.spec b/kernel-lts-tfg.spec
index 7a28f6b..452c4bf 100644
--- a/kernel-lts-tfg.spec
+++ b/kernel-lts-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 2
+%global rel_ver 3
 %global major_ver 6
 %global minor_ver 1
 %global patch_ver 56
diff --git a/kernel-next-tfg.spec b/kernel-next-tfg.spec
index 330a116..53f2c2f 100644
--- a/kernel-next-tfg.spec
+++ b/kernel-next-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 2
+%global rel_ver 3
 %global next_snapshot_date 20231006
 %global target_config defconfig
 %global kname next
diff --git a/kernel-opi5-tfg.spec b/kernel-opi5-tfg.spec
index 4ea5d8f..a7e4edf 100644
--- a/kernel-opi5-tfg.spec
+++ b/kernel-opi5-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 2
+%global rel_ver 3
 %global patch_ver 0
 %global major_ver 6
 %global minor_ver 6
diff --git a/kernel-rc-tfg.spec b/kernel-rc-tfg.spec
index 00e0fbf..3bb38c8 100644
--- a/kernel-rc-tfg.spec
+++ b/kernel-rc-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 7
+%global rel_ver 8
 %global major_ver 6
 %global minor_ver 6
 %global rc_ver 4
diff --git a/kernel-stable-tfg.spec b/kernel-stable-tfg.spec
index 7f19cc3..8bb8e2e 100644
--- a/kernel-stable-tfg.spec
+++ b/kernel-stable-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 2
+%global rel_ver 3
 %global major_ver 6
 %global minor_ver 5
 %global patch_ver 6
diff --git a/kernel-vendor-opi5-tfg.spec b/kernel-vendor-opi5-tfg.spec
index 6b0caed..4be8eb8 100644
--- a/kernel-vendor-opi5-tfg.spec
+++ b/kernel-vendor-opi5-tfg.spec
@@ -1,5 +1,5 @@
 # change version here
-%global rel_ver 3
+%global rel_ver 4
 %global major_ver 5
 %global minor_ver 10
 %global patch_ver 160
diff --git a/master.inc b/master.inc
index 50509d7..7c76a73 100644
--- a/master.inc
+++ b/master.inc
@@ -12,7 +12,8 @@ URL: https://www.kernel.org
 Provides: %{name}-%{KVERREL}
 BuildRequires: bc binutils bison dwarves
 BuildRequires: (elfutils-libelf-devel or libelf-devel) flex
-BuildRequires: gcc make openssl openssl-devel perl python3 rsync
+BuildRequires: make openssl openssl-devel perl python3 rsync
+BuildRequires: clang lld llvm llvm-devel
 BuildRequires: opencsd-devel
 BuildRequires: kmod
 BuildRequires: python3-devel
@@ -31,7 +32,7 @@ Requires: linux-firmware
 %global make_targets Image.gz modules dtbs
 %endif
 
-%global make make KERNELRELEASE=%{KVERREL}
+%global make make -j$(( $(nproc) + 2 )) KERNELRELEASE=%{KVERREL}
 
 Source2: https://git.resf.org/thefossguy/kernel-tfg/archive/master.tar.gz
 
@@ -89,6 +90,7 @@ pathfix.py -i "%{__python3} %{py3_shbang_opts}" -n -p \
     Documentation \
     drivers >/dev/null 2>&1
 
+export LLVM=1 AR=llvm-ar CC=clang HOSTAR=llvm-ar HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld LD=ld.lld NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf STRIP=llvm-strip
 [ -f .config ] && rm -vf .config*
 %{make} distclean
 
@@ -110,7 +112,8 @@ make olddefconfig
 diff .config .config.%{target_config} || echo "Diffing done"
 
 %build
-%{make} %{?_smp_mflags} PYTHON=%{__python3} %{make_targets}
+#export LLVM=1 AR=llvm-ar CC=clang HOSTAR=llvm-ar HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld LD=ld.lld NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf STRIP=llvm-strip
+%{make} PYTHON=%{__python3} %{make_targets}
 
 %install
 rm -rf $RPM_BUILD_ROOT
@@ -124,7 +127,7 @@ echo "%{KVERREL}" > $RPM_BUILD_ROOT/boot/.uname-%{KVERREL}
 
 # install DTBs
 %ifarch aarch64 || riscv64
-%{make} %{?_smp_mflags} INSTALL_DTBS_PATH=$RPM_BUILD_ROOT/boot/dtb-%{KVERREL} dtbs_install
+%{make} INSTALL_DTBS_PATH=$RPM_BUILD_ROOT/boot/dtb-%{KVERREL} dtbs_install
 find arch/%{build_arch}/boot/dts -name '*.dtb' -type f -delete
 %endif
 
@@ -132,13 +135,13 @@ find arch/%{build_arch}/boot/dts -name '*.dtb' -type f -delete
 # '$(mod-fw)' is overridden because there is no reason to install any firmware
 # since we already have 'linux-firmware' package as the dependency of this package.
 %if "%{name}" == "kernel-next-tfg"
-%{make} %{?_smp_mflags} INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$RPM_BUILD_ROOT mod-fw= DEPMOD=/doesnt/exist modules_install
+%{make} INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$RPM_BUILD_ROOT mod-fw= DEPMOD=/doesnt/exist modules_install
 %else
-%{make} %{?_smp_mflags} INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$RPM_BUILD_ROOT mod-fw= modules_install
+%{make} INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$RPM_BUILD_ROOT mod-fw= modules_install
 %endif
 
 # install headers
-%{make} %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr headers_install
+%{make} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr headers_install
 
 # install other key files too
 install -m 644 .config $RPM_BUILD_ROOT/boot/config-%{KVERREL}