nix: bump unicorn@dev only for LoongArch64 and enable GitHub Release for it (#2886)

* add unicorn@dev only for loongarch64 release

* install.sh add loongarch64 target

* ci: releases add loongarch64 target

.github/workflows/releases.yml

@@ -15,6 +15,7 @@ jobs:
           pwndbg-gdb-cross-ppc64-tarball,
           pwndbg-gdb-cross-ppc64le-tarball,
           pwndbg-gdb-cross-x86_32-tarball,
+          pwndbg-gdb-cross-loong64-tarball,
 
           # lldb
           pwndbg-lldb-cross-arm32-tarball,
@@ -23,6 +24,7 @@ jobs:
 #          pwndbg-lldb-cross-ppc64-tarball,  # broken lldb compilation
           pwndbg-lldb-cross-ppc64le-tarball,
           pwndbg-lldb-cross-x86_32-tarball,
+          pwndbg-lldb-cross-loong64-tarball,
         ]
     runs-on: ubuntu-latest  # x86_64-linux
     timeout-minutes: 360

docs/install.sh

@@ -153,7 +153,7 @@ case "$OS" in
             powerpc64) FILE="${BINARY_NAME}_${VERSION}_powerpc64-portable.tar.xz" ;;
             powerpc64le) FILE="${BINARY_NAME}_${VERSION}_powerpc64le-portable.tar.xz" ;;
             s390x) FILE="${BINARY_NAME}_${VERSION}_s390x-portable.tar.xz" ;;
-                # loongarch64) FILE="${BINARY_NAME}_${VERSION}_loongarch64-portable.tar.xz" ;;
+            loongarch64) FILE="${BINARY_NAME}_${VERSION}_loongarch64-portable.tar.xz" ;;
             *)
                 echoerr "Unsupported architecture: $ARCH"
                 exit 1

nix/pyenv.nix

@@ -156,8 +156,6 @@ let
     capstone = pkgs.callPackage (
       {
         cmake,
-        fixDarwinDylibNames,
-        fetchFromGitHub,
         stdenv,
       }:
       prev.capstone.overrideAttrs (
@@ -176,6 +174,7 @@ let
         pkg-config,
         cctools,
         stdenv,
+        fetchFromGitHub,
       }:
       prev.unicorn.overrideAttrs (
         old:
@@ -204,6 +203,19 @@ let
                 --replace-fail "have_sprr_mrs='no'" "have_sprr_mrs='yes'"
           '';
         }
+        // lib.optionalAttrs stdenv.hostPlatform.isLoongArch64 {
+          # Remove this block after upgrading to unicorn 2.2.0
+          src = fetchFromGitHub {
+            owner = "unicorn-engine";
+            repo = "unicorn";
+            rev = "e867b08c66544ddf8cd62c1e36e8ff35d32c3e77";
+            hash = "sha256-vov6io2+RY8CZAoF0S00J2trlEEQHeMxw4HV8gm2Q2Y=";
+          };
+          sourceRoot = "source/bindings/python";
+          preBuild = ''
+            chmod -R +w ../../../
+          '';
+        }
       )
     ) { };