Changeset 2680 in vbox for trunk/Config.kmk

Timestamp:

May 16, 2007 9:09:31 PM (18 years ago)

Author:

vboxsync

Message:

use -mtune=generic as optimization flag if possible (introduced with gcc-4.2)

File:

• trunk/Config.kmk (modified) (3 diffs)

trunk/Config.kmk

@@ -627 +627 @@
  # -funwind-tables provides support for backtraces in gdb then.
  VBOX_GCC_FP  ?= -fno-omit-frame-pointer
- VBOX_GCC_OPT ?= -O2
+ VBOX_GCC_OPT ?= -O2 $(VBOX_GCC_mtune-generic)
  VBOX_VCC_FP  ?= -Oy-
  ifdef VBOX_USE_VCC80
@@ -635 +635 @@
  endif
  VBOX_GCC_GC_FP  ?= -fno-omit-frame-pointer
- VBOX_GCC_GC_OPT ?= -O2
+ VBOX_GCC_GC_OPT ?= -O2 $(VBOX_GCC_mtune-generic)
  VBOX_VCC_GC_FP  ?= -Oy-
  ifdef VBOX_USE_VCC80
@@ -853 +853 @@
         $(APPEND) "$@" "VBOX_GCC_Wno-extra             ?= $(call VBOX_GCC_CHECK_CXX,-Wno-extra)"
         $(APPEND) "$@" "VBOX_GCC_fno-stack-protector   ?= $(call VBOX_GCC_CHECK_CC,-fno-stack-protector,)"
+        @# Produce code optimized for the most common IA32/AMD64/EM64T processors. Introduced with gcc version 4.2.
+        $(APPEND) "$@" "VBOX_GCC_mtune-generic         ?= $(call VBOX_GCC_CHECK_CC,-mtune=generic,)"
 ifneq ($(BUILD_TARGET),l4)
         @# Set default attribute for ELF and MACH-O symbols to ``hidden'' to reduce the number
         @# of relocation entries and PLT indirections in shared libraries. Don't allow for gcc version < 4.
         $(APPEND) "$@" "ifneq ($$(int-ge $$(VBOX_GCC_VERSION_CC),40000),)"
-        $(APPEND) "$@" " VBOX_GCC_fvisibility-hidden    ?= $(call VBOX_GCC_CHECK_CC,-fvisibility=hidden -DVBOX_HAVE_VISIBILITY_HIDDEN,)"
+        $(APPEND) "$@" " VBOX_GCC_fvisibility-hidden   ?= $(call VBOX_GCC_CHECK_CC,-fvisibility=hidden -DVBOX_HAVE_VISIBILITY_HIDDEN,)"
         $(APPEND) "$@" "endif"
 endif