Add missing gcov kernel bit

Actually add the bit for gcov kernel config options

1 files changed, 122 insertions, 0 deletions

diff --git a/configs/gcov-enable.patch b/configs/gcov-enable.patch
new file mode 100644
index 0000000..b649b9e
--- /dev/null
+++ b/configs/gcov-enable.patch
@@ -0,0 +1,122 @@
+From 84581e3ff5a2ce86b83c797b8318985b70c12901 Mon Sep 17 00:00:00 2001
+From: Vincent Sanders <vince@collabora.co.uk>
+Date: Mon, 18 Aug 2014 15:47:32 +0300
+Subject: [PATCH 1/3] Enable gcov support on the ARM architecture
+
+Enable gcov support for ARM based on original patches by David
+Singleton and George G. Davis
+
+Riku - updated to patch to current mainline kernel. The patch
+has beeb submitted in 2010, 2012 - and now in 2014.
+
+https://lwn.net/Articles/390419/
+http://marc.info/?l=linux-arm-kernel&m=133823081813044
+
+Cc: Arnd Bergmann <arnd@arndb.de>
+Cc: Russell King <linux@arm.linux.org.uk>
+Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
+Cc: linux-arm-kernel@lists.infradead.org
+Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
+Signed-off-by: Vincent Sanders <vincent.sanders@collabora.co.uk>
+---
+ arch/arm/boot/bootp/Makefile      | 2 ++
+ arch/arm/boot/compressed/Makefile | 2 ++
+ arch/arm/include/asm/elf.h        | 1 +
+ arch/arm/kernel/Makefile          | 2 ++
+ arch/arm/kernel/module.c          | 1 +
+ kernel/gcov/Kconfig               | 2 +-
+ lib/Makefile                      | 2 ++
+ 7 files changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/arch/arm/boot/bootp/Makefile b/arch/arm/boot/bootp/Makefile
+index c394e30..5761f00 100644
+--- a/arch/arm/boot/bootp/Makefile
++++ b/arch/arm/boot/bootp/Makefile
+@@ -5,6 +5,8 @@
+ # architecture-specific flags and dependencies.
+ #
+ 
++GCOV_PROFILE	:= n
++
+ LDFLAGS_bootp	:=-p --no-undefined -X \
+ 		 --defsym initrd_phys=$(INITRD_PHYS) \
+ 		 --defsym params_phys=$(PARAMS_PHYS) -T
+diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
+index 9aee36e..172e606 100644
+--- a/arch/arm/boot/compressed/Makefile
++++ b/arch/arm/boot/compressed/Makefile
+@@ -37,6 +37,8 @@ ifeq ($(CONFIG_ARM_VIRT_EXT),y)
+ OBJS		+= hyp-stub.o
+ endif
+ 
++GCOV_PROFILE		:= n
++
+ #
+ # Architecture dependencies
+ #
+diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
+index f4b46d3..afb9caf 100644
+--- a/arch/arm/include/asm/elf.h
++++ b/arch/arm/include/asm/elf.h
+@@ -50,6 +50,7 @@ typedef struct user_fp elf_fpregset_t;
+ #define R_ARM_ABS32		2
+ #define R_ARM_CALL		28
+ #define R_ARM_JUMP24		29
++#define R_ARM_TARGET1		38
+ #define R_ARM_V4BX		40
+ #define R_ARM_PREL31		42
+ #define R_ARM_MOVW_ABS_NC	43
+diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
+index 38ddd9f..979c4e9 100644
+--- a/arch/arm/kernel/Makefile
++++ b/arch/arm/kernel/Makefile
+@@ -5,6 +5,8 @@
+ CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(TEXT_OFFSET)
+ AFLAGS_head.o        := -DTEXT_OFFSET=$(TEXT_OFFSET)
+ 
++GCOV_PROFILE := n
++
+ ifdef CONFIG_FUNCTION_TRACER
+ CFLAGS_REMOVE_ftrace.o = -pg
+ CFLAGS_REMOVE_insn.o = -pg
+diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
+index 45e4781..6a4dffe 100644
+--- a/arch/arm/kernel/module.c
++++ b/arch/arm/kernel/module.c
+@@ -91,6 +91,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
+ 			break;
+ 
+ 		case R_ARM_ABS32:
++		case R_ARM_TARGET1:
+ 			*(u32 *)loc += sym->st_value;
+ 			break;
+ 
+diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
+index d04ce8a..cf66c5c 100644
+--- a/kernel/gcov/Kconfig
++++ b/kernel/gcov/Kconfig
+@@ -35,7 +35,7 @@ config GCOV_KERNEL
+ config GCOV_PROFILE_ALL
+ 	bool "Profile entire Kernel"
+ 	depends on GCOV_KERNEL
+-	depends on SUPERH || S390 || X86 || PPC || MICROBLAZE
++	depends on SUPERH || S390 || X86 || PPC || MICROBLAZE || ARM
+ 	default n
+ 	---help---
+ 	This options activates profiling for the entire kernel.
+diff --git a/lib/Makefile b/lib/Makefile
+index 7ab38f7..6b0a770 100644
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -2,6 +2,8 @@
+ # Makefile for some libs needed in the kernel.
+ #
+ 
++GCOV_PROFILE := n
++
+ ifdef CONFIG_FUNCTION_TRACER
+ ORIG_CFLAGS := $(KBUILD_CFLAGS)
+ KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
+-- 
+2.0.1
+