Fix nanos6 cross-compilation for riscv

Even if we do an override to papi get the proper configure flags for
cross-compiling, the memory fences are not defined for risc-v:

mb.h:67:2: error: #error Need to define rmb for this architecture!

overlay.nix

@@ -58,7 +58,6 @@ let
     tagaspi = callPackage ./pkgs/tagaspi/default.nix { };
     tampi = callPackage ./pkgs/tampi/default.nix { };
     upc-qaire-exporter = prev.callPackage ./pkgs/upc-qaire-exporter/default.nix { };
-    tacuda = callPackage ./pkgs/tacuda/default.nix { };
     wxparaver = callPackage ./pkgs/paraver/default.nix { };
   };
 

pkgs/extrae/default.nix

@@ -20,6 +20,7 @@
 #, python3Packages
 , installShellFiles
 , symlinkJoin
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 }:
 
 let
@@ -87,7 +88,7 @@ stdenv.mkDerivation rec {
       --enable-sampling
       --with-unwind=${libunwind.dev}
       --with-xml-prefix=${libxml2.dev}
-      --with-papi=${papi}
+      ${lib.optionalString enablePapi "--with-papi=${papi}"}
       ${if (mpi != null) then ''--with-mpi=${mpi}''
         else ''--without-mpi''}
       --without-dyninst)

pkgs/lmbench/default.nix

@@ -22,7 +22,11 @@ stdenv.mkDerivation rec {
   '';
 
   buildInputs = [ libtirpc ];
-  patches = [ ./fix-install.patch ./gcc-14.patch ];
+  patches = [
+    ./fix-install.patch
+    ./gcc-14.patch
+    ./fix-cross.patch
+  ];
 
   hardeningDisable = [ "all" ];
 
@@ -35,6 +39,8 @@ stdenv.mkDerivation rec {
       CFLAGS=-Wno-implicit-int
       CPPFLAGS=-I${libtirpc.dev}/include/tirpc
       LDFLAGS=-ltirpc
+      CC=${stdenv.cc.targetPrefix}cc
+      AR=${stdenv.cc.targetPrefix}ar
     )
   '';
 

pkgs/lmbench/fix-cross.patch

@@ -0,0 +1,13 @@
+diff --git a/src/Makefile b/src/Makefile
+index 2555014..356eeb3 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -36,7 +36,7 @@ SHELL=/bin/sh
+ 
+ CC=`../scripts/compiler`
+ MAKE=`../scripts/make`
+-AR=ar
++AR?=ar
+ ARCREATE=cr
+ 
+ # base of installation location

pkgs/nanos6/default.nix

@@ -16,6 +16,7 @@
 , jemallocNanos6 ? null
 , cachelineBytes ? 64
 , enableGlibcxxDebug ? false
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 , useGit ? false
 , gitUrl ? "ssh://git@bscpm04.bsc.es/nanos6/nanos6"
 , gitBranch ? "master"
@@ -47,6 +48,8 @@ let
   };
 
   source = if (useGit) then git else release;
+
+  isCross = stdenv.hostPlatform != stdenv.buildPlatform;
 in
   stdenv.mkDerivation (source // {
     pname = "nanos6";
@@ -71,9 +74,11 @@ in
       "--disable-all-instrumentations"
       "--enable-ovni-instrumentation"
       "--with-ovni=${ovni}"
+      "--with-boost=${boost.dev}"
     ] ++
       (optional enableJemalloc "--with-jemalloc=${jemallocNanos6}") ++
-      (optional enableGlibcxxDebug "CXXFLAGS=-D_GLIBCXX_DEBUG");
+      (optional enableGlibcxxDebug "CXXFLAGS=-D_GLIBCXX_DEBUG") ++
+      (optional isCross "--with-symbol-resolution=ifunc");
 
     postConfigure = lib.optionalString (!enableDebug) ''
       # Disable debug
@@ -97,16 +102,14 @@ in
       # TODO: papi_version is needed for configure:
       # ./configure: line 27378: papi_version: command not found
       # This probably breaks cross-compilation
-      papi
-    ];
+    ] ++ lib.optionals enablePapi [ papi ];
 
     buildInputs = [
       boost
       numactl
       hwloc
-      papi
       ovni
-    ];
+    ] ++ lib.optionals enablePapi [ papi ];
 
     # Create a script that sets NANOS6_HOME
     postInstall = ''

pkgs/nosv/default.nix

@@ -7,7 +7,7 @@
 , numactl
 , hwloc
 , papi
-, enablePapi ? true
+, enablePapi ? stdenv.hostPlatform == stdenv.buildPlatform # Disabled when cross-compiling
 , cacheline ? 64 # bits
 , ovni ? null
 , useGit ? false

pkgs/tacuda/default.nix

@@ -1,68 +0,0 @@
-{ stdenv
-, fetchFromGitHub
-, automake
-, autoconf
-, libtool
-, gnumake
-, autoreconfHook
-, boost
-, cudaPackages
-
-, useGit ? false
-, gitUrl ? "git@gitlab-internal.bsc.es:task-awareness/tacuda/tacuda.git"
-, gitBranch ? "main"
-, gitCommit ? "35234f9445e6149a2bd38d119841e2485d6ee05e"
-}:
-
-let
-
-  release_ver = "2.1.0";
-  release = {
-    version = release_ver;
-    src = fetchFromGitHub {
-      owner = "bsc-pm";
-      repo = "tacuda";
-      rev = release_ver;
-      hash = "sha256-Cj3EiLVJSLvRv0ydeg7Vp4SpkniEqHkcWF+YOJQ8EcM=";
-    };
-  };
-
-  git = rec {
-    version = src.shortRev;
-    src = builtins.fetchGit {
-      url = gitUrl;
-      ref = gitBranch;
-      rev = gitCommit;
-    };
-  };
-
-  source = if (useGit) then git else release;
-
-in
-
-stdenv.mkDerivation {
-  pname = "tacuda";
-  inherit (source) src version;
-
-  enableParallelBuilding = true;
-  separateDebugInfo = true;
-
-  nativeBuildInputs = [
-    autoreconfHook
-    automake
-    autoconf
-    libtool
-    gnumake
-  ];
-
-  patches = [ ./fix_config.patch ];
-
-  configureFlags = [ "--with-cuda-include=${cudaPackages.cudatoolkit}/include" ];
-
-  buildInputs = [
-    boost
-    cudaPackages.libcublas
-    cudaPackages.cuda_cudart
-  ];
-
-}

pkgs/tacuda/fix_config.patch

@@ -1,13 +0,0 @@
-diff --git a/m4/cuda.m4 b/m4/cuda.m4
-index 23f5c94..8f9b534 100644
---- a/m4/cuda.m4
-+++ b/m4/cuda.m4
-@@ -40,7 +40,7 @@ search_libs="cuda cublas cudart"
- required_libs=""
- 
- m4_foreach([function],
--           [cuInit,
-+           [
- 	    cublasSgemm,
-             cudaStreamCreate,
-             cudaLaunchKernel,