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

@@ -8,9 +8,6 @@ let
 
   bscPkgs = {
     amd-uprof = prev.callPackage ./pkgs/amd-uprof/default.nix { };
-    aoccUnwrapped = callPackage ./pkgs/aocc/unwrapped.nix { };
-    aocc = callPackage ./pkgs/aocc/default.nix { };
-    stdenvAocc = final.overrideCC final.stdenv final.aocc;
     bench6 = callPackage ./pkgs/bench6/default.nix { };
     bigotes = callPackage ./pkgs/bigotes/default.nix { };
     clangOmpss2 = callPackage ./pkgs/llvm-ompss2/default.nix { };

pkgs/aocc/default.nix

@@ -1,16 +0,0 @@
-{ wrapCCWith
-, aoccUnwrapped
-}:
-
-let
-  cc = aoccUnwrapped;
-in wrapCCWith {
-  inherit cc;
-
-  extraBuildCommands = ''
-    echo "-isystem ${cc}/include" >> $out/nix-support/cc-cflags
-
-    wrap aocc   $wrapper $ccPath/clang
-    wrap aocc++ $wrapper $ccPath/clang++
-  '';
-}

pkgs/aocc/unwrapped.nix

@@ -1,51 +0,0 @@
-{ lib
-, fetchurl
-, stdenv
-, autoPatchelfHook
-, rocmPackages
-, zlib
-, libffi
-, elfutils
-}:
-
-let
-  # in newer nixpkgs the runtime is hsakmt
-  rocmRuntime =
-    if rocmPackages ? hsakmt then
-      rocmPackages.hsakmt
-    else
-      rocmPackages.rocm-runtime;
-in
-stdenv.mkDerivation {
-  pname = "aocc-compiler";
-  version = "5.0.0";
-
-  src = fetchurl {
-    url = "https://download.amd.com/developer/eula/aocc/aocc-5-0/aocc-compiler-5.0.0.tar";
-    sha256 = "sha256-lm+sLSx1np3m6WnBCtp6ezBsET9/HgfqN2gp7IY4Dao=";
-  };
-
-  nativeBuildInputs = [ autoPatchelfHook ];
-  buildInputs = [
-    elfutils
-    zlib
-    rocmRuntime
-    stdenv.cc.cc.lib
-  ];
-  phases = [ "unpackPhase" "installPhase" "fixupPhase" ];
-  dontStrip = true;
-
-  installPhase = ''
-    mkdir -p $out
-    cp -a . $out/
-
-    ln -s ${lib.getLib libffi}/lib/libffi.so $out/lib/libffi.so.6
-  '';
-
-  passthru = {
-    inherit rocmRuntime;
-    isClang = true; # Needed for wrapCCWith
-  };
-
-  meta.mainProgram = "clang";
-}

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