Fix amdclang version detection for src build

Author: amd-arsuresh

script/get-rocm/customize.py

@@ -11,7 +11,11 @@ def preprocess(i):
 
     recursion_spaces = i['recursion_spaces']
 
-    file_name = 'rocminfo.exe' if os_info['platform'] == 'windows' else 'rocminfo'
+    # Source build: search for clang instead of rocminfo
+    if env.get('MLC_ROCM_BUILD_FROM_SRC', '') == 'yes':
+        file_name = 'clang'
+    else:
+        file_name = 'rocminfo.exe' if os_info['platform'] == 'windows' else 'rocminfo'
     env['FILE_NAME'] = file_name
 
     # Build search paths: check /opt paths first, then custom install prefix
@@ -30,6 +34,10 @@ def preprocess(i):
         for p in [os.path.join(prefix_opt, 'rocm', 'bin')] + sorted(glob.glob(os.path.join(prefix_opt, 'rocm-*', 'bin')), reverse=True):
             if os.path.exists(p) and p not in rocm_paths:
                 rocm_paths.append(p)
+        # Source build: also check <prefix>/bin directly
+        prefix_bin = os.path.join(install_prefix, 'bin')
+        if os.path.exists(prefix_bin) and prefix_bin not in rocm_paths:
+            rocm_paths.append(prefix_bin)
 
     if rocm_paths:
         env['MLC_TMP_PATH'] = os.pathsep.join(rocm_paths)

script/get-rocm/run.sh

@@ -6,6 +6,15 @@ version_file="${dir}/.info/version"
 if [ -f "${version_file}" ]; then
     cat "${version_file}" > tmp-ver.out
     test $? -eq 0 || exit 1
+elif [[ "${MLC_ROCM_BUILD_FROM_SRC}" == "yes" ]]; then
+    # Source build: get version from clang --version output
+    clang_bin="${MLC_ROMLC_BIN_WITH_PATH%/*}/clang"
+    if [ -f "${clang_bin}" ]; then
+        ${clang_bin} --version 2>&1 | head -1 | sed 's/.*version[ ]*//' | sed 's/[^0-9.].*//' > tmp-ver.out
+    else
+        echo "${MLC_VERSION}" > tmp-ver.out
+    fi
+    test $? -eq 0 || exit 1
 else
     # Fallback: try rocminfo output
     ${MLC_ROMLC_BIN_WITH_PATH} 2>/dev/null | grep "Runtime Version" | head -1 | sed 's/.*: *//' > tmp-ver.out