src/share/vm/runtime/commandLineFlagConstraintsRuntime.cpp

*** 26,65 ****
  #include "runtime/arguments.hpp"
  #include "runtime/commandLineFlagConstraintsRuntime.hpp"
  #include "runtime/globals.hpp"
  #include "utilities/defaultStream.hpp"
  
! Flag::Error ObjectAlignmentInBytesConstraintFunc(bool verbose, intx* value) {
!   if (!is_power_of_2(*value)) {
!     if (verbose == true) {
!       jio_fprintf(defaultStream::error_stream(),
!                 "ObjectAlignmentInBytes=" INTX_FORMAT " must be power of 2\n",
!                 *value);
      }
      return Flag::VIOLATES_CONSTRAINT;
    }
    // In case page size is very small.
!   if (*value >= (intx)os::vm_page_size()) {
!     if (verbose == true) {
!       jio_fprintf(defaultStream::error_stream(),
!                 "ObjectAlignmentInBytes=" INTX_FORMAT " must be less than page size " INTX_FORMAT "\n",
!                 *value, (intx)os::vm_page_size());
!     }
      return Flag::VIOLATES_CONSTRAINT;
    }
    return Flag::SUCCESS;
  }
  
  // Need to enforce the padding not to break the existing field alignments.
  // It is sufficient to check against the largest type size.
! Flag::Error ContendedPaddingWidthConstraintFunc(bool verbose, intx* value) {
!   if ((*value != 0) && ((*value % BytesPerLong) != 0)) {
!     if (verbose == true) {
!       jio_fprintf(defaultStream::error_stream(),
!                 "ContendedPaddingWidth=" INTX_FORMAT " must be a multiple of %d\n",
!                 *value, BytesPerLong);
!     }
      return Flag::VIOLATES_CONSTRAINT;
    } else {
      return Flag::SUCCESS;
    }
  }
--- 26,71 ----
  #include "runtime/arguments.hpp"
  #include "runtime/commandLineFlagConstraintsRuntime.hpp"
  #include "runtime/globals.hpp"
  #include "utilities/defaultStream.hpp"
  
! static void print_error_if_needed(bool verbose, const char* msg, ...) {
!   if (verbose) {
!     va_list listPointer;
!     va_start(listPointer, msg);
!     jio_vfprintf(defaultStream::error_stream(), msg, listPointer);
!     va_end(listPointer);
    }
+ }
+ 
+ Flag::Error ObjectAlignmentInBytesConstraintFunc(bool verbose, intx value) {
+   if (!is_power_of_2(value)) {
+     print_error_if_needed(verbose,
+                           "ObjectAlignmentInBytes=" INTX_FORMAT " must be "
+                           "power of 2\n",
+                           value);
      return Flag::VIOLATES_CONSTRAINT;
    }
    // In case page size is very small.
!   if (value >= (intx)os::vm_page_size()) {
!     print_error_if_needed(verbose,
!                           "ObjectAlignmentInBytes=" INTX_FORMAT " must be "
!                           "less than page size " INTX_FORMAT "\n",
!                           value, (intx)os::vm_page_size());
      return Flag::VIOLATES_CONSTRAINT;
    }
    return Flag::SUCCESS;
  }
  
  // Need to enforce the padding not to break the existing field alignments.
  // It is sufficient to check against the largest type size.
! Flag::Error ContendedPaddingWidthConstraintFunc(bool verbose, intx value) {
!   if ((value != 0) && ((value % BytesPerLong) != 0)) {
!     print_error_if_needed(verbose,
!                           "ContendedPaddingWidth=" INTX_FORMAT " must be "
!                           "a multiple of %d\n",
!                           value, BytesPerLong);
      return Flag::VIOLATES_CONSTRAINT;
    } else {
      return Flag::SUCCESS;
    }
  }