Loader support for SRAM ECC.

Change-Id: I0c6791c356d9186cc8dabae9fd698b1d4de19b09

runtime/hsa-runtime/libamdhsacode/amd_hsa_code.cpp

@@ -583,7 +583,7 @@ namespace code {
       if (IsFinalizer && (EFlags & EF_AMDGPU_XNACK)) {
         NewName = NewName + "+xnack";
       } else {
-        if (EFlags != 0 && (EFlags & EF_AMDGPU_XNACK_LC)) {
+        if (EFlags & EF_AMDGPU_XNACK_LC) {
           NewName = NewName + "+xnack";
         } else {
           if (OldName == "AMD:AMDGPU:8:0:1")
@@ -599,6 +599,9 @@ namespace code {
         }
       }
 
+      if (EFlags & EF_AMDGPU_SRAM_ECC_LC)
+        NewName += "+sram-ecc";
+
       return NewName;
     }
 
@@ -631,6 +634,9 @@ namespace code {
         if (img->EFlags() & EF_AMDGPU_XNACK_LC)
           isaName += "+xnack";
 
+        if (img->EFlags() & EF_AMDGPU_SRAM_ECC_LC)
+          isaName += "+sram-ecc";
+
         return true;
       } else {
         std::string vendor_name, architecture_name;

runtime/hsa-runtime/libamdhsacode/amd_hsa_code_util.cpp

@@ -108,7 +108,7 @@ bool IsAccessibleMemoryAddress(uint64_t address)
   int32_t random_fd = 0;
   ssize_t bytes_written = 0;
   if (-1 == (random_fd = open("/dev/random", O_WRONLY))) {
-    return false;
+    return true;  // Skip check if /dev/random is not available.
   }
   bytes_written = write(random_fd, (void*)address, 1);
   if (-1 == close(random_fd)) {