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Subject[RFC PATCH 8/8] gcov: architecture specific compile flag adjustments
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>

Exclude code from profiling which is not linked to the main kernel or
which is running in a context not compatible with the assumptions made
by gcc's profiling code.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
---
arch/arm/boot/compressed/Makefile | 1 +
arch/ppc/boot/Makefile | 1 +
arch/ppc/boot/common/Makefile | 1 +
arch/ppc/boot/simple/Makefile | 1 +
arch/x86/boot/Makefile | 1 +
arch/x86/boot/compressed/Makefile | 1 +
6 files changed, 6 insertions(+)
Index: linux-2.6.25/arch/arm/boot/compressed/Makefile
===================================================================
--- linux-2.6.25.orig/arch/arm/boot/compressed/Makefile
+++ linux-2.6.25/arch/arm/boot/compressed/Makefile
@@ -7,6 +7,7 @@
HEAD = head.o
OBJS = misc.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
+GCOV := n

#
# Architecture dependencies
Index: linux-2.6.25/arch/x86/boot/compressed/Makefile
===================================================================
--- linux-2.6.25.orig/arch/x86/boot/compressed/Makefile
+++ linux-2.6.25/arch/x86/boot/compressed/Makefile
@@ -12,6 +12,7 @@ cflags-$(CONFIG_X86_64) := -mcmodel=smal
KBUILD_CFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+GCOV := n

KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__

Index: linux-2.6.25/arch/ppc/boot/Makefile
===================================================================
--- linux-2.6.25.orig/arch/ppc/boot/Makefile
+++ linux-2.6.25/arch/ppc/boot/Makefile
@@ -16,6 +16,7 @@
# KBUILD_CFLAGS used when building rest of boot (takes effect recursively)
KBUILD_CFLAGS += -fno-builtin -D__BOOTER__ -Iarch/$(ARCH)/boot/include
HOSTCFLAGS += -Iarch/$(ARCH)/boot/include
+GCOV := n

BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd

Index: linux-2.6.25/arch/ppc/boot/common/Makefile
===================================================================
--- linux-2.6.25.orig/arch/ppc/boot/common/Makefile
+++ linux-2.6.25/arch/ppc/boot/common/Makefile
@@ -5,6 +5,7 @@
# Tom Rini January 2001
#

+GCOV := n
lib-y := string.o util.o misc-common.o \
serial_stub.o bootinfo.o
lib-$(CONFIG_SERIAL_8250_CONSOLE) += ns16550.o
Index: linux-2.6.25/arch/ppc/boot/simple/Makefile
===================================================================
--- linux-2.6.25.orig/arch/ppc/boot/simple/Makefile
+++ linux-2.6.25/arch/ppc/boot/simple/Makefile
@@ -21,6 +21,7 @@
# XXX_memory.o file for this to work, as well as editing the
# misc-$(CONFIG_MACHINE) variable.

+GCOV := n
boot := arch/ppc/boot
common := $(boot)/common
utils := $(boot)/utils
Index: linux-2.6.25/arch/x86/boot/Makefile
===================================================================
--- linux-2.6.25.orig/arch/x86/boot/Makefile
+++ linux-2.6.25/arch/x86/boot/Makefile
@@ -71,6 +71,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os
$(call cc-option, -mpreferred-stack-boundary=2)
KBUILD_CFLAGS += $(call cc-option,-m32)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+GCOV := n

$(obj)/zImage: IMAGE_OFFSET := 0x1000
$(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)





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