From e26d6b834cc4a68adeb82abbdce7205df7599118 Mon Sep 17 00:00:00 2001
From: Don Zickus <dzickus@redhat.com>
Date: Mon, 24 May 2010 17:07:24 -0400
Subject: Makefile.build: make KBUILD_SYMTYPES work again

commit 37a8d9f67f18de1e2cbc7387311ce22d4dbff518 tried to combine some
duplicate code and accidentally broke how KBUILD_SYMTYPES worked

This fixes the code to match the original intention by the author who
originally added the code I believe.

The fixes include:
- removing extra whitespaces in the if-statements
- moving the if-statement from around the -r to the -T
- adding a second arg to cmd_gensymtypes to simplify the options passed
  to genksyms.

Tested by instrumenting genksyms and seeing what options were passed in
during a make, KBUILD_SYMTYPES make, and when a foo.symref was created.

Everything compiled and looked ok.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/Makefile.build | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index e4deb73e9a84..390aae4bb222 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -156,14 +156,14 @@ $(obj)/%.i: $(src)/%.c FORCE
 
 cmd_gensymtypes =                                                           \
     $(CPP) -D__GENKSYMS__ $(c_flags) $< |                                   \
-    $(GENKSYMS) -T $@ -a $(ARCH)                                            \
+    $(GENKSYMS) $(if $(1), -T $(2)) -a $(ARCH)                              \
      $(if $(KBUILD_PRESERVE),-p)                                            \
-     $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null)))
+     -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
 
 quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
 cmd_cc_symtypes_c =                                                         \
     set -e;                                                                 \
-    $(call cmd_gensymtypes, true) >/dev/null;                               \
+    $(call cmd_gensymtypes,true,$@) >/dev/null;                             \
     test -s $@ || rm -f $@
 
 $(obj)/%.symtypes : $(src)/%.c FORCE
@@ -192,16 +192,16 @@ else
 #   the actual value of the checksum generated by genksyms
 
 cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
-cmd_modversions =							\
-	if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then	\
-		$(call cmd_gensymtypes, $(KBUILD_SYMTYPES))		\
-		    > $(@D)/.tmp_$(@F:.o=.ver);				\
-									\
-		$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) 		\
-			-T $(@D)/.tmp_$(@F:.o=.ver);			\
-		rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver);	\
-	else								\
-		mv -f $(@D)/.tmp_$(@F) $@;				\
+cmd_modversions =								\
+	if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then		\
+		$(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
+		    > $(@D)/.tmp_$(@F:.o=.ver);					\
+										\
+		$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) 			\
+			-T $(@D)/.tmp_$(@F:.o=.ver);				\
+		rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver);		\
+	else									\
+		mv -f $(@D)/.tmp_$(@F) $@;					\
 	fi;
 endif
 
-- 
cgit v1.2.3


From 01ab17887f4cdcb8bb5a5d1bc3b160d186e6e99b Mon Sep 17 00:00:00 2001
From: Amerigo Wang <amwang@redhat.com>
Date: Mon, 28 Jun 2010 10:45:21 +0800
Subject: Makefile: "make kernelrelease" should show the correct full kernel
 version

After commit 85a256d8e0116c8f5ad276730830f5d4d473344d, 'make kernelrelease'
doesn't show the correct full kernel version. This patch fixes it,
'make kernelrelease' will show the same version name with the one
you finally get.

Cc: David Rientjes <rientjes@google.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Amerigo Wang <amwang@redhat.com>
[mmarek: merged with 0915512 and added dependency on
include/config/kernel.release]
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index a86ac8c4798e..dceb4f19f786 100644
--- a/Makefile
+++ b/Makefile
@@ -414,7 +414,7 @@ endif
 no-dot-config-targets := clean mrproper distclean \
 			 cscope TAGS tags help %docs check% \
 			 include/linux/version.h headers_% \
-			 kernelrelease kernelversion
+			 kernelversion
 
 config-targets := 0
 mixed-targets  := 0
@@ -1395,9 +1395,9 @@ checkstack:
 	$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
 	$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
 
-kernelrelease:
-	$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
-	$(error kernelrelease not valid - run 'make prepare' to update it))
+kernelrelease: include/config/kernel.release
+	@echo $(KERNELRELEASE)
+
 kernelversion:
 	@echo $(KERNELVERSION)
 
-- 
cgit v1.2.3


From d6f4ceb796ebf1a8c8a9ad4a8ea0d181aaec7de6 Mon Sep 17 00:00:00 2001
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 14 Jul 2010 15:43:52 +0200
Subject: Kbuild: Add option to set -femit-struct-debug-baseonly

Newer gcc has a -femit-struct-debug-baseonly option that dramatically
reduces the size of object files with debug info. What it does
is to only emit type information for structures when the structures
are defined in the same file or in a header file.

This means the type information for most headers are not included.
This is not good when the type information is actually
needed (e.g. with kgdb or systemtap)

But often kernel hackers only care about line numbers and don't
need all the type information anyways. In this case setting
the option can be a big win:

A build dir for a specific x86-64 configuration with gcc 4.5
shrunk from 2.3G to 1.2G. The compilation was also nearly a minute
faster.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
[mmarek: reformatted help text]
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile          |  4 ++++
 lib/Kconfig.debug | 13 +++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/Makefile b/Makefile
index dceb4f19f786..e1dfb90c6092 100644
--- a/Makefile
+++ b/Makefile
@@ -557,6 +557,10 @@ KBUILD_CFLAGS	+= -g
 KBUILD_AFLAGS	+= -gdwarf-2
 endif
 
+ifdef CONFIG_DEBUG_INFO_REDUCED
+KBUILD_CFLAGS 	+= $(call cc-option, -femit-struct-debug-baseonly)
+endif
+
 ifdef CONFIG_FUNCTION_TRACER
 KBUILD_CFLAGS	+= -pg
 endif
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 25c3ed594c54..2af5d84ec824 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -595,6 +595,19 @@ config DEBUG_INFO
 
 	  If unsure, say N.
 
+config DEBUG_INFO_REDUCED
+	bool "Reduce debugging information"
+	depends on DEBUG_INFO
+	help
+	  If you say Y here gcc is instructed to generate less debugging
+	  information for structure types. This means that tools that
+	  need full debugging information (like kgdb or systemtap) won't
+	  be happy. But if you merely need debugging information to
+	  resolve line numbers there is no loss. Advantage is that
+	  build directory object sizes shrink dramatically over a full
+	  DEBUG_INFO build and compile times are reduced too.
+	  Only works with newer gcc versions.
+
 config DEBUG_VM
 	bool "Debug VM"
 	depends on DEBUG_KERNEL
-- 
cgit v1.2.3


From 6588169d516560f68672e2928680b71c647b7806 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 28 Jul 2010 17:33:09 +0200
Subject: kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line

It is now possible to assign options to AS, CC and LD
on the command line - which is only used when building modules.

{A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile
in the arch makefiles, thus users had no way to specify
additional options to AS, CC, LD when building modules
without overriding the original value.

Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE
that is used by arch specific files and free up
{A,C,LD}FLAGS_MODULE so they can be assigned on
the command line.

All arch Makefiles that used the old variables has been updated.

Note: Previously we had a MODFLAGS variable for both
AS and CC. But in favour of consistency this was dropped.
So in some cases arch Makefile has one assignmnet replaced by
two assignmnets.

Note2: MODFLAGS was not documented and is dropped
without any notice. I do not expect much/any breakage
from this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin]
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32]
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Documentation/kbuild/kbuild.txt    | 16 ++++++++++++++--
 Documentation/kbuild/makefiles.txt | 18 +++++++++++++++---
 Makefile                           | 13 ++++++++-----
 arch/avr32/Makefile                |  2 +-
 arch/blackfin/Makefile             |  4 ++--
 arch/ia64/Makefile                 |  2 +-
 arch/m32r/Makefile                 |  2 +-
 arch/m68k/Makefile                 |  2 +-
 arch/mips/Makefile                 |  6 ++++--
 arch/powerpc/Makefile              |  2 +-
 arch/s390/Makefile                 |  3 ++-
 arch/score/Makefile                |  3 ++-
 scripts/Makefile.build             |  9 ++++++---
 scripts/Makefile.modpost           |  7 ++++---
 14 files changed, 62 insertions(+), 27 deletions(-)

diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index 634c625da8ce..d9c655433ec6 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -22,11 +22,23 @@ building C files and assembler files.
 
 KAFLAGS
 --------------------------------------------------
-Additional options to the assembler.
+Additional options to the assembler (for built-in and modules).
+
+AFLAGS_MODULE
+--------------------------------------------------
+Addtional module specific options to use for $(AS).
 
 KCFLAGS
 --------------------------------------------------
-Additional options to the C compiler.
+Additional options to the C compiler (for built-in and modules).
+
+CFLAGS_MODULE
+--------------------------------------------------
+Addtional module specific options to use for $(CC).
+
+LDFLAGS_MODULE
+--------------------------------------------------
+Additional options used for $(LD) when linking modules.
 
 KBUILD_VERBOSE
 --------------------------------------------------
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 71c602d61680..802341abf702 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -928,11 +928,23 @@ When kbuild executes, the following steps are followed (roughly):
 	$(CFLAGS_KERNEL) contains extra C compiler flags used to compile
 	resident kernel code.
 
-    CFLAGS_MODULE	$(CC) options specific for modules
+    KBUILD_AFLAGS_MODULE   Options for $(AS) when building modules
 
-	$(CFLAGS_MODULE) contains extra C compiler flags used to compile code
-	for loadable kernel modules.
+	$(KBUILD_AFLAGS_MODULE) is used to add arch specific options that
+	are used for $(AS).
+	From commandline AFLAGS_MODULE shall be used (see kbuild.txt).
 
+    KBUILD_CFLAGS_MODULE   Options for $(CC) when building modules
+
+	$(KBUILD_CFLAGS_MODULE) is used to add arch specific options that
+	are used for $(CC).
+	From commandline CFLAGS_MODULE shall be used (see kbuild.txt).
+
+    KBUILD_LDFLAGS_MODULE   Options for $(LD) when linking modules
+
+	$(KBUILD_LDFLAGS_MODULE) is used to add arch specific options
+	used when linking modules. This is often a linker script.
+	From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
 
 --- 6.2 Add prerequisites to archprepare:
 
diff --git a/Makefile b/Makefile
index e1dfb90c6092..3dbd62b0bcfe 100644
--- a/Makefile
+++ b/Makefile
@@ -332,10 +332,9 @@ CHECK		= sparse
 
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void $(CF)
-MODFLAGS	= -DMODULE
-CFLAGS_MODULE   = $(MODFLAGS)
-AFLAGS_MODULE   = $(MODFLAGS)
-LDFLAGS_MODULE  = -T $(srctree)/scripts/module-common.lds
+CFLAGS_MODULE   =
+AFLAGS_MODULE   =
+LDFLAGS_MODULE  =
 CFLAGS_KERNEL	=
 AFLAGS_KERNEL	=
 CFLAGS_GCOV	= -fprofile-arcs -ftest-coverage
@@ -355,6 +354,9 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -Wno-format-security \
 		   -fno-delete-null-pointer-checks
 KBUILD_AFLAGS   := -D__ASSEMBLY__
+KBUILD_AFLAGS_MODULE  := -DMODULE
+KBUILD_CFLAGS_MODULE  := -DMODULE
+KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
@@ -369,6 +371,7 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
+export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
 
 # When compiling out-of-tree modules, put MODVERDIR in the module
 # tree rather than in the kernel tree. The kernel tree might
@@ -607,7 +610,7 @@ endif
 # Use --build-id when available.
 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
 			      $(call cc-ldoption, -Wl$(comma)--build-id,))
-LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
+KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
 
 ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index ead8a75203a9..22fb66590dcd 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -13,7 +13,7 @@ KBUILD_DEFCONFIG	:= atstk1002_defconfig
 
 KBUILD_CFLAGS	+= -pipe -fno-builtin -mno-pic
 KBUILD_AFLAGS	+= -mrelax -mno-pic
-CFLAGS_MODULE	+= -mno-relax
+KBUILD_CFLAGS_MODULE += -mno-relax
 LDFLAGS_vmlinux	+= --relax
 
 cpuflags-$(CONFIG_PLATFORM_AT32AP)	+= -march=ap
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index d4c7177e7656..f7ef923297fc 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -15,8 +15,8 @@ GZFLAGS          := -9
 
 KBUILD_CFLAGS           += $(call cc-option,-mno-fdpic)
 KBUILD_AFLAGS           += $(call cc-option,-mno-fdpic)
-CFLAGS_MODULE    += -mlong-calls
-LDFLAGS_MODULE   += -m elf32bfin
+KBUILD_CFLAGS_MODULE    += -mlong-calls
+KBUILD_LDFLAGS_MODULE   += -m elf32bfin
 KALLSYMS         += --symbol-prefix=_
 
 KBUILD_DEFCONFIG := BF537-STAMP_defconfig
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 475e2725fbde..5ab6af3361a8 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -22,7 +22,7 @@ CHECKFLAGS	+= -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
 
 OBJCOPYFLAGS	:= --strip-all
 LDFLAGS_vmlinux	:= -static
-LDFLAGS_MODULE	+= -T $(srctree)/arch/ia64/module.lds
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/ia64/module.lds
 AFLAGS_KERNEL	:= -mconstant-gp
 EXTRA		:=
 
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index 469766b24e22..14a3c2314fef 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -13,7 +13,7 @@ LDFLAGS_vmlinux	:=
 
 KBUILD_CFLAGS += -pipe -fno-schedule-insns
 CFLAGS_KERNEL += -mmodel=medium
-CFLAGS_MODULE += -mmodel=large
+KBUILD_CFLAGS_MODULE += -mmodel=large
 
 ifdef CONFIG_CHIP_VDEC2
 cflags-$(CONFIG_ISA_M32R2)	+= -DNO_FPU -Wa,-bitinst
diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile
index 570d85c3f97f..b06a7e3cbcd6 100644
--- a/arch/m68k/Makefile
+++ b/arch/m68k/Makefile
@@ -18,7 +18,7 @@ KBUILD_DEFCONFIG := multi_defconfig
 # override top level makefile
 AS += -m68020
 LDFLAGS := -m m68kelf
-LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
 ifneq ($(SUBARCH),$(ARCH))
 	ifeq ($(CROSS_COMPILE),)
 		CROSS_COMPILE := $(call cc-cross-prefix, \
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 1893efd43fca..a77dcf35c14e 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -93,7 +93,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
 cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe
 cflags-y			+= -msoft-float
 LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib
-MODFLAGS			+= -mlong-calls
+KBUILD_AFLAGS_MODULE		+= -mlong-calls
+KBUILD_CFLAGS_MODULE		+= -mlong-calls
 
 cflags-y += -ffreestanding
 
@@ -172,7 +173,8 @@ cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)	+= $(call cc-option,-mno-daddi,)
 
 ifdef CONFIG_CPU_SB1
 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
-MODFLAGS	+= -msb1-pass1-workarounds
+KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
+KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
 endif
 endif
 
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 42dcd3f4ad7b..b68a83853e1c 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -93,7 +93,7 @@ else
 	KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
 endif
 else
-LDFLAGS_MODULE	+= arch/powerpc/lib/crtsavres.o
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
 endif
 
 ifeq ($(CONFIG_TUNE_CELL),y)
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index fc8fb20e7fc0..83ef8724c833 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -22,7 +22,8 @@ STACK_SIZE	:= 8192
 CHECKFLAGS	+= -D__s390__ -msize-long
 else
 LDFLAGS		:= -m elf64_s390
-MODFLAGS	+= -fpic -D__PIC__
+KBUILD_AFLAGS_MODULE += -fpic -D__PIC__
+KBUILD_CFLAGS_MODULE += -fpic -D__PIC__
 KBUILD_CFLAGS	+= -m64
 KBUILD_AFLAGS	+= -m64
 UTS_MACHINE	:= s390x
diff --git a/arch/score/Makefile b/arch/score/Makefile
index 68e0cd06d5c9..d77dc639d8e3 100644
--- a/arch/score/Makefile
+++ b/arch/score/Makefile
@@ -20,7 +20,8 @@ cflags-y += -G0 -pipe -mel -mnhwloop -D__SCOREEL__ \
 #
 KBUILD_AFLAGS += $(cflags-y)
 KBUILD_CFLAGS += $(cflags-y)
-MODFLAGS += -mlong-calls
+KBUILD_AFLAGS_MODULE += -mlong-calls
+KBUILD_CFLAGS_MODULE += -mlong-calls
 LDFLAGS += --oformat elf32-littlescore
 LDFLAGS_vmlinux	+= -G0 -static -nostdlib
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 390aae4bb222..5e7c40e16545 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -115,7 +115,10 @@ endif
 # ---------------------------------------------------------------------------
 
 # Default is built-in, unless we know otherwise
-modkern_cflags = $(if $(part-of-module), $(CFLAGS_MODULE), $(CFLAGS_KERNEL))
+modkern_cflags =                                          \
+	$(if $(part-of-module),                           \
+		$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
+		$(CFLAGS_KERNEL))
 quiet_modtag := $(empty)   $(empty)
 
 $(real-objs-m)        : part-of-module := y
@@ -250,8 +253,8 @@ $(obj)/%.lst: $(src)/%.c FORCE
 
 modkern_aflags := $(AFLAGS_KERNEL)
 
-$(real-objs-m)      : modkern_aflags := $(AFLAGS_MODULE)
-$(real-objs-m:.o=.s): modkern_aflags := $(AFLAGS_MODULE)
+$(real-objs-m)      : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
 
 quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
 cmd_as_s_S       = $(CPP) $(a_flags)   -o $@ $< 
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 8f14c81abbc7..3e3f02409bbd 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -107,7 +107,7 @@ $(modules:.ko=.mod.c): __modpost ;
 modname = $(notdir $(@:.mod.o=))
 
 quiet_cmd_cc_o_c = CC      $@
-      cmd_cc_o_c = $(CC) $(c_flags) $(CFLAGS_MODULE)	\
+      cmd_cc_o_c = $(CC) $(c_flags) $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE) \
 		   -c -o $@ $<
 
 $(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE
@@ -117,8 +117,9 @@ targets += $(modules:.ko=.mod.o)
 
 # Step 6), final link of the modules
 quiet_cmd_ld_ko_o = LD [M]  $@
-      cmd_ld_ko_o = $(LD) -r $(LDFLAGS) $(LDFLAGS_MODULE) -o $@		\
-			  $(filter-out FORCE,$^)
+      cmd_ld_ko_o = $(LD) -r $(LDFLAGS)                                 \
+                             $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
+                             -o $@ $(filter-out FORCE,$^)
 
 $(modules): %.ko :%.o %.mod.o FORCE
 	$(call if_changed,ld_ko_o)
-- 
cgit v1.2.3


From 80c00ba942ee39c9a95c06959223560400bbb86e Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 28 Jul 2010 19:11:27 +0200
Subject: kbuild: allow assignment to {A,C}FLAGS_KERNEL on the command line

It is now possible to assign options to AS and CC
on the command line - which is only used for built-in code.

{A,C}FLAGS_KERNEL was used both in the top-level Makefile
in the arch makefiles, thus users had no way to specify
additional options to AS, CC without overriding
the original value.

Introduce a new set of variables KBUILD_{A,C}FLAGS_KERNEL
that is used by arch specific files and free up
{A,C}FLAGS_KERNEL so they can be assigned on
the command line.

All arch Makefiles that used the old variables has been updated.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Documentation/kbuild/kbuild.txt    | 10 ++++++++++
 Documentation/kbuild/makefiles.txt |  9 +++++++--
 Makefile                           |  4 ++++
 arch/ia64/Makefile                 |  4 ++--
 arch/m32r/Makefile                 |  2 +-
 scripts/Makefile.build             |  4 ++--
 6 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index d9c655433ec6..e903f20077cf 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -28,10 +28,20 @@ AFLAGS_MODULE
 --------------------------------------------------
 Addtional module specific options to use for $(AS).
 
+AFLAGS_KERNEL
+--------------------------------------------------
+Addtional options for $(AS) when used for assembler
+code for code that is compiled as built-in.
+
 KCFLAGS
 --------------------------------------------------
 Additional options to the C compiler (for built-in and modules).
 
+CFLAGS_KERNEL
+--------------------------------------------------
+Addtional options for $(CC) when used to compile
+code that is compiled as built-in.
+
 CFLAGS_MODULE
 --------------------------------------------------
 Addtional module specific options to use for $(CC).
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 802341abf702..5c878cc6c0b4 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -923,9 +923,9 @@ When kbuild executes, the following steps are followed (roughly):
 	The first example utilises the trick that a config option expands
 	to 'y' when selected.
 
-    CFLAGS_KERNEL	$(CC) options specific for built-in
+    KBUILD_AFLAGS_KERNEL	$(AS) options specific for built-in
 
-	$(CFLAGS_KERNEL) contains extra C compiler flags used to compile
+	$(KBUILD_AFLAGS_KERNEL) contains extra C compiler flags used to compile
 	resident kernel code.
 
     KBUILD_AFLAGS_MODULE   Options for $(AS) when building modules
@@ -934,6 +934,11 @@ When kbuild executes, the following steps are followed (roughly):
 	are used for $(AS).
 	From commandline AFLAGS_MODULE shall be used (see kbuild.txt).
 
+    KBUILD_CFLAGS_KERNEL	$(CC) options specific for built-in
+
+	$(KBUILD_CFLAGS_KERNEL) contains extra C compiler flags used to compile
+	resident kernel code.
+
     KBUILD_CFLAGS_MODULE   Options for $(CC) when building modules
 
 	$(KBUILD_CFLAGS_MODULE) is used to add arch specific options that
diff --git a/Makefile b/Makefile
index 3dbd62b0bcfe..7af9d5479461 100644
--- a/Makefile
+++ b/Makefile
@@ -353,6 +353,8 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -Werror-implicit-function-declaration \
 		   -Wno-format-security \
 		   -fno-delete-null-pointer-checks
+KBUILD_AFLAGS_KERNEL :=
+KBUILD_CFLAGS_KERNEL :=
 KBUILD_AFLAGS   := -D__ASSEMBLY__
 KBUILD_AFLAGS_MODULE  := -DMODULE
 KBUILD_CFLAGS_MODULE  := -DMODULE
@@ -372,6 +374,7 @@ export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
+export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
 
 # When compiling out-of-tree modules, put MODVERDIR in the module
 # tree rather than in the kernel tree. The kernel tree might
@@ -1481,6 +1484,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
                   $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
 
 a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
+	  $(KBUILD_AFLAGS_KERNEL)                              \
 	  $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \
 	  $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
 
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 5ab6af3361a8..62b10f5f2540 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -23,12 +23,12 @@ CHECKFLAGS	+= -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
 OBJCOPYFLAGS	:= --strip-all
 LDFLAGS_vmlinux	:= -static
 KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/ia64/module.lds
-AFLAGS_KERNEL	:= -mconstant-gp
+KBUILD_AFLAGS_KERNEL := -mconstant-gp
 EXTRA		:=
 
 cflags-y	:= -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f12-f15,f32-f127 \
 		   -falign-functions=32 -frename-registers -fno-optimize-sibling-calls
-CFLAGS_KERNEL	:= -mconstant-gp
+KBUILD_CFLAGS_KERNEL := -mconstant-gp
 
 GAS_STATUS	= $(shell $(srctree)/arch/ia64/scripts/check-gas "$(CC)" "$(OBJDUMP)")
 KBUILD_CPPFLAGS += $(shell $(srctree)/arch/ia64/scripts/toolchain-flags "$(CC)" "$(OBJDUMP)" "$(READELF)")
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index 14a3c2314fef..8ff5ba0ea26c 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -12,7 +12,7 @@ OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
 LDFLAGS_vmlinux	:=
 
 KBUILD_CFLAGS += -pipe -fno-schedule-insns
-CFLAGS_KERNEL += -mmodel=medium
+KBUILD_CFLAGS_KERNEL += -mmodel=medium
 KBUILD_CFLAGS_MODULE += -mmodel=large
 
 ifdef CONFIG_CHIP_VDEC2
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5e7c40e16545..a1a5cf95a68d 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -118,7 +118,7 @@ endif
 modkern_cflags =                                          \
 	$(if $(part-of-module),                           \
 		$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
-		$(CFLAGS_KERNEL))
+		$(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
 quiet_modtag := $(empty)   $(empty)
 
 $(real-objs-m)        : part-of-module := y
@@ -251,7 +251,7 @@ $(obj)/%.lst: $(src)/%.c FORCE
 # Compile assembler sources (.S)
 # ---------------------------------------------------------------------------
 
-modkern_aflags := $(AFLAGS_KERNEL)
+modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
 
 $(real-objs-m)      : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
 $(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
-- 
cgit v1.2.3


From c9575dc680dffa26411e9aed32b4a1e12609428d Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Wed, 28 Jul 2010 19:33:00 +0200
Subject: frv: clean up arch/frv/Makefile

- removed a lot of unused variable assignmnets
- removed unused bootstrap target
- replaced ARCHMODFLAGS with proper KBUILD_{A,C}FLAGS_MODULE assignmnets

The resuting Makefile has not been tested due to lack of toolchain,
but these were all trivial changes.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 arch/frv/Makefile | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/arch/frv/Makefile b/arch/frv/Makefile
index 310c47a663f8..7ff84575b186 100644
--- a/arch/frv/Makefile
+++ b/arch/frv/Makefile
@@ -23,20 +23,14 @@
 # Copyright (C) 1994 by Hamish Macdonald
 #
 
-CCSPECS	:= $(shell $(CC) -v 2>&1 | grep "^Reading specs from " | head -1 | cut -c20-)
-CCDIR	:= $(strip $(patsubst %/specs,%,$(CCSPECS)))
-CPUCLASS := fr400
-
-# test for cross compiling
-COMPILE_ARCH = $(shell uname -m)
-
 ifdef CONFIG_MMU
 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
 else
 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
 endif
 
-ARCHMODFLAGS	+= -G0 -mlong-calls
+KBUILD_AFLAGS_MODULE += -G0 -mlong-calls
+KBUILD_CFLAGS_MODULE += -G0 -mlong-calls
 
 ifdef CONFIG_GPREL_DATA_8
 KBUILD_CFLAGS	+= -G8
@@ -54,7 +48,6 @@ endif
 
 ifdef CONFIG_GC_SECTIONS
 KBUILD_CFLAGS	+= -ffunction-sections -fdata-sections
-LINKFLAGS	+= --gc-sections
 endif
 
 ifndef CONFIG_FRAME_POINTER
@@ -64,16 +57,13 @@ endif
 ifdef CONFIG_CPU_FR451_COMPILE
 KBUILD_CFLAGS	+= -mcpu=fr450
 KBUILD_AFLAGS	+= -mcpu=fr450
-ASFLAGS		+= -mcpu=fr450
 else
 ifdef CONFIG_CPU_FR551_COMPILE
 KBUILD_CFLAGS	+= -mcpu=fr550
 KBUILD_AFLAGS	+= -mcpu=fr550
-ASFLAGS		+= -mcpu=fr550
 else
 KBUILD_CFLAGS	+= -mcpu=fr400
 KBUILD_AFLAGS	+= -mcpu=fr400
-ASFLAGS		+= -mcpu=fr400
 endif
 endif
 
@@ -83,14 +73,12 @@ endif
 KBUILD_CFLAGS	+= -mno-fdpic -mgpr-32 -msoft-float -mno-media
 KBUILD_CFLAGS	+= -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
 KBUILD_AFLAGS	+= -mno-fdpic
-ASFLAGS		+= -mno-fdpic
 
 # make sure the .S files get compiled with debug info
 # and disable optimisations that are unhelpful whilst debugging
 ifdef CONFIG_DEBUG_INFO
 #KBUILD_CFLAGS	+= -O1
 KBUILD_AFLAGS	+= -Wa,--gdwarf2
-ASFLAGS		+= -Wa,--gdwarf2
 endif
 
 head-y		:= arch/frv/kernel/head.o arch/frv/kernel/init_task.o
@@ -105,11 +93,5 @@ all: Image
 Image: vmlinux
 	$(Q)$(MAKE) $(build)=arch/frv/boot $@
 
-bootstrap:
-	$(Q)$(MAKEBOOT) bootstrap
-
 archclean:
 	$(Q)$(MAKE) $(clean)=arch/frv/boot
-
-archdep: scripts/mkdep symlinks
-	$(Q)$(MAKE) $(build)=arch/frv/boot dep
-- 
cgit v1.2.3


From 4696e2958b345189afebcb52e365d16ca6e403ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Fri, 30 Jul 2010 20:43:20 +0200
Subject: trivial: fix a typo in a filename
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/Makefile.modpost | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 3e3f02409bbd..7d22056582c1 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -30,7 +30,7 @@
 #     - See include/linux/module.h for more details
 
 # Step 4 is solely used to allow module versioning in external modules,
-# where the CRC of each module is retrieved from the Module.symers file.
+# where the CRC of each module is retrieved from the Module.symvers file.
 
 # KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined
 # symbols in the final module linking stage
-- 
cgit v1.2.3


From 1ce53adf13a54375d2a5c7cdbe341b2558389615 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Thu, 29 Jul 2010 01:47:53 +0200
Subject: modpost: support objects with more than 64k sections

This patch makes modpost able to process object files with more than
64k sections. Needed for huge kernel builds (allyesconfig, for example)
with -ffunction-sections. 64k sections handling is covered, for example,
by this document:

"IA-64 gABI Proposal 74: Section Indexes"
http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/mod/file2alias.c |   6 +--
 scripts/mod/modpost.c    | 102 +++++++++++++++++++++++++++++++++++------------
 scripts/mod/modpost.h    |  43 ++++++++++++++++++++
 3 files changed, 122 insertions(+), 29 deletions(-)

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 220213e603db..33f436328f9a 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -839,16 +839,16 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 	char *zeros = NULL;
 
 	/* We're looking for a section relative symbol */
-	if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
+	if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
 		return;
 
 	/* Handle all-NULL symbols allocated into .bss */
-	if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
+	if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
 		zeros = calloc(1, sym->st_size);
 		symval = zeros;
 	} else {
 		symval = (void *)info->hdr
-			+ info->sechdrs[sym->st_shndx].sh_offset
+			+ info->sechdrs[get_secindex(info, sym)].sh_offset
 			+ sym->st_value;
 	}
 
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 3318692e4e76..7249ab44f44c 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -253,7 +253,7 @@ static enum export export_no(const char *s)
 	return export_unknown;
 }
 
-static enum export export_from_sec(struct elf_info *elf, Elf_Section sec)
+static enum export export_from_sec(struct elf_info *elf, unsigned int sec)
 {
 	if (sec == elf->export_sec)
 		return export_plain;
@@ -373,6 +373,8 @@ static int parse_elf(struct elf_info *info, const char *filename)
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	Elf_Sym  *sym;
+	const char *secstrings;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
@@ -417,8 +419,27 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		return 0;
 	}
 
+	if (hdr->e_shnum == 0) {
+		/*
+		 * There are more than 64k sections,
+		 * read count from .sh_size.
+		 * note: it doesn't need shndx2secindex()
+		 */
+		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
+	}
+	else {
+		info->num_sections = hdr->e_shnum;
+	}
+	if (hdr->e_shstrndx == SHN_XINDEX) {
+		info->secindex_strings =
+		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
+	}
+	else {
+		info->secindex_strings = hdr->e_shstrndx;
+	}
+
 	/* Fix endianness in section headers */
-	for (i = 0; i < hdr->e_shnum; i++) {
+	for (i = 0; i < info->num_sections; i++) {
 		sechdrs[i].sh_name      = TO_NATIVE(sechdrs[i].sh_name);
 		sechdrs[i].sh_type      = TO_NATIVE(sechdrs[i].sh_type);
 		sechdrs[i].sh_flags     = TO_NATIVE(sechdrs[i].sh_flags);
@@ -431,9 +452,8 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		sechdrs[i].sh_entsize   = TO_NATIVE(sechdrs[i].sh_entsize);
 	}
 	/* Find symbol table. */
-	for (i = 1; i < hdr->e_shnum; i++) {
-		const char *secstrings
-			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
+	for (i = 1; i < info->num_sections; i++) {
 		const char *secname;
 		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
 
@@ -461,14 +481,26 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
 			info->export_gpl_future_sec = i;
 
-		if (sechdrs[i].sh_type != SHT_SYMTAB)
-			continue;
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+			sh_link_idx = shndx2secindex(sechdrs[i].sh_link);
+			info->strtab       = (void *)hdr +
+			    sechdrs[sh_link_idx].sh_offset;
+		}
 
-		info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
-		info->symtab_stop  = (void *)hdr + sechdrs[i].sh_offset
-			                         + sechdrs[i].sh_size;
-		info->strtab       = (void *)hdr +
-			             sechdrs[sechdrs[i].sh_link].sh_offset;
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_shndx_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+		}
 	}
 	if (!info->symtab_start)
 		fatal("%s has no symtab?\n", filename);
@@ -480,6 +512,21 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		sym->st_value = TO_NATIVE(sym->st_value);
 		sym->st_size  = TO_NATIVE(sym->st_size);
 	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx !=
+		    shndx2secindex(sechdrs[symtab_shndx_idx].sh_link))
+			fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename,
+			      shndx2secindex(sechdrs[symtab_shndx_idx].sh_link),
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(*p);
+	}
+
 	return 1;
 }
 
@@ -514,7 +561,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
 			       Elf_Sym *sym, const char *symname)
 {
 	unsigned int crc;
-	enum export export = export_from_sec(info, sym->st_shndx);
+	enum export export = export_from_sec(info, get_secindex(info, sym));
 
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
@@ -656,19 +703,19 @@ static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)
 		return "(unknown)";
 }
 
-static const char *sec_name(struct elf_info *elf, int shndx)
+static const char *sec_name(struct elf_info *elf, int secindex)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdrs[shndx].sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdrs[secindex].sh_name;
 }
 
 static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
 {
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdr->sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdr->sh_name;
 }
 
 /* if sym is empty or point to a string
@@ -1047,11 +1094,14 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
 	Elf_Sym *near = NULL;
 	Elf64_Sword distance = 20;
 	Elf64_Sword d;
+	unsigned int relsym_secindex;
 
 	if (relsym->st_name != 0)
 		return relsym;
+
+	relsym_secindex = get_secindex(elf, relsym);
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (sym->st_shndx != relsym->st_shndx)
+		if (get_secindex(elf, sym) != relsym_secindex)
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
@@ -1113,9 +1163,9 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr,
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		const char *symsec;
 
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
-		symsec = sec_name(elf, sym->st_shndx);
+		symsec = sec_name(elf, get_secindex(elf, sym));
 		if (strcmp(symsec, sec) != 0)
 			continue;
 		if (!is_valid_name(elf, sym))
@@ -1311,7 +1361,7 @@ static void check_section_mismatch(const char *modname, struct elf_info *elf,
 	const char *tosec;
 	const struct sectioncheck *mismatch;
 
-	tosec = sec_name(elf, sym->st_shndx);
+	tosec = sec_name(elf, get_secindex(elf, sym));
 	mismatch = section_mismatch(fromsec, tosec);
 	if (mismatch) {
 		Elf_Sym *to;
@@ -1339,7 +1389,7 @@ static unsigned int *reloc_location(struct elf_info *elf,
 				    Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
-	int section = sechdr->sh_info;
+	int section = shndx2secindex(sechdr->sh_info);
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
 		(r->r_offset - sechdrs[section].sh_addr);
@@ -1447,7 +1497,7 @@ static void section_rela(const char *modname, struct elf_info *elf,
 		r.r_addend = TO_NATIVE(rela->r_addend);
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1505,7 +1555,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
 		}
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1530,7 +1580,7 @@ static void check_sec_ref(struct module *mod, const char *modname,
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
-	for (i = 0; i < elf->hdr->e_shnum; i++) {
+	for (i = 0; i < elf->num_sections; i++) {
 		check_section(modname, elf, &elf->sechdrs[i]);
 		/* We want to process only relocation sections and not .init */
 		if (sechdrs[i].sh_type == SHT_RELA)
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index be987a44f250..0388cfccac8d 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -129,8 +129,51 @@ struct elf_info {
 	const char   *strtab;
 	char	     *modinfo;
 	unsigned int modinfo_len;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
 };
 
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus:
+ * shndx == 0               <=> sechdrs[0]
+ * ......
+ * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1]
+ * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE]
+ * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1]
+ * ......
+ * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff,
+ * so basically we map  0000..feff -> 0000..feff
+ *                      ff00..ffff -> (you are a bad boy, dont do it)
+ *                     10000..xxxx -> ff00..(xxxx-0x100)
+ */
+static inline unsigned int shndx2secindex(unsigned int i)
+{
+	if (i <= SHN_HIRESERVE)
+		return i;
+	return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE);
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(const struct elf_info *info,
+					const Elf_Sym *sym)
+{
+	if (sym->st_shndx != SHN_XINDEX)
+		return sym->st_shndx;
+	return shndx2secindex(info->symtab_shndx_start[sym -
+						       info->symtab_start]);
+}
+
 /* file2alias.c */
 extern unsigned int cross_build;
 void handle_moddevtable(struct module *mod, struct elf_info *info,
-- 
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