[PATCH] x86_64: Separate CONFIG_UNWIND_INFO from CONFIG_DEBUG_INFO

As a follow-up to the introduction of CONFIG_UNWIND_INFO, this
separates the generation of frame unwind information for x86-64 from
that of full debug information.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 51d83288d62b499d8b863113a7094ff71f954cc4..2d3e9be229c05deac31e8d008d333065245a90fb 100644 (file)
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -38,8 +38,10 @@ CFLAGS += -pipe
 # actually it makes the kernel smaller too.
 CFLAGS += -fno-reorder-blocks  
 CFLAGS += -Wno-sign-compare
-ifneq ($(CONFIG_DEBUG_INFO),y)
+ifneq ($(CONFIG_UNWIND_INFO),y)
 CFLAGS += -fno-asynchronous-unwind-tables
+endif
+ifneq ($(CONFIG_DEBUG_INFO),y)
 # -fweb shrinks the kernel a bit, but the difference is very small
 # it also messes up debugging, so don't use it for now.
 #CFLAGS += $(call cc-option,-fweb)

diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index 58b19215b4b3a3c19adc2a68a3b792b325b555f3..4cbbe7c488391fffb7ecd765ba6c623dfde4ebf7 100644 (file)
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -189,7 +189,7 @@ SECTIONS
   /* Sections to be discarded */
   /DISCARD/ : {
        *(.exitcall.exit)
-#ifndef CONFIG_DEBUG_INFO
+#ifndef CONFIG_UNWIND_INFO
        *(.eh_frame)
 #endif
        }

diff --git a/include/asm-x86_64/dwarf2.h b/include/asm-x86_64/dwarf2.h
index fe062cba0a89036c144aaa6800e0da807e7b4e02..07654bd155bf9d44c35fc4a619b8506692fc6b5e 100644 (file)
--- a/include/asm-x86_64/dwarf2.h
+++ b/include/asm-x86_64/dwarf2.h
@@ -14,7 +14,7 @@
    away for older version. 
  */
 
-#ifdef CONFIG_DEBUG_INFO
+#ifdef CONFIG_UNWIND_INFO
 
 #define CFI_STARTPROC .cfi_startproc
 #define CFI_ENDPROC .cfi_endproc