Use LLVM/Clang 15

16 is not supported yet.

[..]
CMake Error at CMakeLists.txt:171 (message):
  Unsupported LLVM version found via /usr/include: 16
CMake Error at CMakeLists.txt:172 (message):
  Only versions between 6 and 15 are supported
CMake Error at CMakeLists.txt:173 (message):
  Specify an LLVM major version using LLVM_REQUESTED_VERSION=<major version>
[..]

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

bpftrace.spec

@@ -1,6 +1,6 @@
 Name:           bpftrace
 Version:        0.17.0
-Release:        1%{?dist}
+Release:        1.0.riscv64%{?dist}
 Summary:        High-level tracing language for Linux eBPF
 License:        ASL 2.0
 
@@ -10,7 +10,7 @@ Patch1:         0001-Workaround-OpaquePointers-for-LLVM-15.patch
 
 # Arches will be included as upstream support is added and dependencies are
 # satisfied in the respective arches
-ExclusiveArch:  x86_64 %{power64} aarch64 s390x
+ExclusiveArch:  x86_64 %{power64} aarch64 s390x riscv64
 
 BuildRequires:  gcc-c++
 BuildRequires:  bison
@@ -18,8 +18,8 @@ BuildRequires:  flex
 BuildRequires:  cmake
 BuildRequires:  elfutils-libelf-devel
 BuildRequires:  zlib-devel
-BuildRequires:  llvm-devel
-BuildRequires:  clang-devel
+BuildRequires:  llvm15-devel
+BuildRequires:  clang15-devel
 BuildRequires:  bcc-devel >= 0.19.0-1
 BuildRequires:  libbpf-devel
 BuildRequires:  libbpf-static
@@ -47,6 +47,7 @@ and predecessor tracers such as DTrace and SystemTap
 %cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo \
        -DBUILD_TESTING:BOOL=OFF \
        -DBUILD_SHARED_LIBS:BOOL=OFF \
+       -DLLVM_REQUESTED_VERSION=15 \
        -DUSE_SYSTEM_BPF_BCC:BOOL=ON
 %cmake_build
 
@@ -82,6 +83,10 @@ find %{buildroot}%{_datadir}/%{name}/tools -type f -exec \
 
 
 %changelog
+* Tue Apr 25 2023 David Abdurachmanov <davidlt@rivosinc.com> - 0.17.0-1.0.riscv64
+- Enable riscv64
+- Use LLVM/Clang 15
+
 * Tue Jan 31 2023 Augusto Caringi <acaringi@redhat.com> - 0.17.0-1
 - Rebased to version 0.17.0