[llvm] r231128 - Add support for SunOS function/data sections and associated

[Eric Christopher]

Author: echristo
Date: Tue Mar  3 14:54:29 2015
New Revision: 231128

URL: http://llvm.org/viewvc/llvm-project?rev=231128&view=rev
Log:
Add support for SunOS function/data sections and associated
section gc.

Patch by Bill Rushmore.

Modified:
    llvm/trunk/Makefile.rules

Modified: llvm/trunk/Makefile.rules
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/Makefile.rules?rev=231128&r1=231127&r2=231128&view=diff
==============================================================================
--- llvm/trunk/Makefile.rules (original)
+++ llvm/trunk/Makefile.rules Tue Mar  3 14:54:29 2015
@@ -631,6 +631,9 @@ ifneq ($(HOST_OS), $(filter $(HOST_OS),
 ifneq ($(HOST_OS),Darwin)
 ifneq ($(HOST_ARCH),Mips)
   CXX.Flags += -ffunction-sections -fdata-sections
+  ifeq ($(HOST_OS),SunOS)
+      CXX.Flags += -falign-functions=8
+  endif
 endif
 endif
 endif
@@ -638,8 +641,12 @@ ifndef NO_DEAD_STRIP
   ifeq ($(HOST_OS),Darwin)
     LD.Flags += -Wl,-dead_strip
   else
-    ifneq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
-      LD.Flags += -Wl,--gc-sections
+    ifeq ($(HOST_OS),SunOS)
+      LD.Flags += -Wl,-z -Wl,discard-unused=sections
+    else
+      ifneq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
+        LD.Flags += -Wl,--gc-sections
+      endif
     endif
   endif
 endif