zynq_image: add various fixes

zynq_image.nix

@@ -5,10 +5,13 @@
 let
   # dont use overlays for the qemu, it causes a lot of wasted time on recompiles
   x86pkgs = import pkgs.path { system = "x86_64-linux"; };
-  # armv7l cross-compile and boot fixes
+  build = config.system.build;
   customKernel = pkgs.linux.override {
     extraConfig = ''
       OVERLAY_FS y
+      CORESIGHT_LINKS_AND_SINKS m
+      CORESIGHT_SINK_TPIU m
+      CORESIGHT_SOURCE_ETM3X m
     '';
   };
   customKernelPackages = pkgs.linuxPackagesFor customKernel;
@@ -16,7 +19,7 @@ in {
   boot.kernelPackages = customKernelPackages;
   nixpkgs.system = "armv7l-linux";
   system.build.zynq_image = let
-    cmdline = "root=/dev/mmcblk0 console=ttyPS0,115200n8 systemConfig=${builtins.unsafeDiscardStringContext config.system.build.toplevel}";
+    cmdline = "root=/dev/mmcblk0 console=ttyPS0,115200n8 systemConfig=${builtins.unsafeDiscardStringContext build.toplevel}";
     qemuScript = ''
       #!/bin/bash -v
       export PATH=${x86pkgs.qemu}/bin:$PATH
@@ -33,7 +36,7 @@ in {
         -serial /dev/null \
         -serial stdio \
         -display none \
-        -dtb $base/zynq-zc702.dtb \
+        -dtb $base/zynq-zc706.dtb \
         -kernel $base/zImage \
         -initrd $base/initrd \
         -drive file=./tmp/root.squashfs,if=sd,format=raw \
@@ -46,11 +49,11 @@ in {
   } ''
     mkdir $out
     cd $out
-    cp -s ${config.system.build.squashfs} root.squashfs
-    cp -s ${config.system.build.kernel}/*zImage .
-    cp -s ${config.system.build.initialRamdisk}/initrd initrd
-    cp -s ${config.system.build.kernel}/dtbs/zynq-zc702.dtb .
-    ln -sv ${config.system.build.toplevel} toplevel
+    cp  ${build.squashfs} root.squashfs
+    cp  ${build.kernel}/*zImage .
+    cp  ${build.initialRamdisk}/initrd initrd
+    cp  ${build.kernel}/dtbs/zynq-zc706.dtb .
+    ln -sv ${build.toplevel} toplevel
     cp $qemuScriptPath qemu-script
     chmod +x qemu-script
     patchShebangs qemu-script
@@ -58,12 +61,12 @@ in {
   '';
   system.build.rpi_image_tar = pkgs.runCommand "dist.tar" {} ''
     mkdir -p $out/nix-support
-    tar -cvf $out/dist.tar ${config.system.build.rpi_image}
+    tar -cvf $out/dist.tar ${build.rpi_image}
     echo "file binary-dist $out/dist.tar" >> $out/nix-support/hydra-build-products
   '';
   environment.systemPackages = [ pkgs.strace ];
   environment.etc."service/getty/run".source = pkgs.writeShellScript "getty" ''
-    agetty ttyPS0 115200
+    bash </dev/ttyPS0 >/dev/ttyPS0
   '';
   environment.etc."pam.d/other".text = "";