Need "wrapper" to compile the Linux kernel with ICC

TyMac · ‎11-14-2008

I am a developer with an idea to start a new kernel source for Gentoo that is specifically for the Intel ICC compiler. Evidentally there is a "wrapper" that is needed to be applied to the kernel source first before ICC can correctly complie the Linux kernel. Where can I get this wrapper? (I have looked all over the web but the only yhing I can find is old documentation)

zhenhua_zhang · ‎11-14-2008

You could find 'Linux kernel build white paper with 10.0 compiler' in below URLs. In the bottom of that page, there is another paper discussion the compatibility with GNU Compilers may be also useful for you.

http://www.intel.com/support/performancetools/c/linux/sb/cs-007713.htm

TyMac · ‎11-15-2008

Quoting - zhenhua.zhang

You could find 'Linux kernel build white paper with 10.0 compiler' in below URLs. In the bottom of that page, there is another paper discussion the compatibility with GNU Compilers may be also useful for you.

http://www.intel.com/support/performancetools/c/linux/sb/cs-007713.htm

Yes I have read this paper... it deos not give a link to the wrapper it talks about however. Here is a link that has sme older wrappers:

http://www.pyrillion.org/index.html?showframe=linuxkernelpatch.html

I have not tried them however because I think they are too old to work with a 2.6.2* kernel.

YannGolanski · ‎11-17-2008

Quoting - thaidog

I am a developer with an idea to stat a new kernel source for Gentoo that is specifically for the Intel ICC compiler. Evidentally there is a "wrapper" that is need to be applied to the kernel source first before ICC can correctly complie the Linux kernel. Wher can I get this wrapper? (I have looked all over the web but the only yhing I can find is old documentation)

TyMac · ‎11-17-2008

Quoting - nanometrics

Looks like your post did not go through...

Feilong_H_Intel · ‎11-17-2008

Quoting - thaidog

I am a developer with an idea to stat a new kernel source for Gentoo that is specifically for the Intel ICC compiler. Evidentally there is a "wrapper" that is need to be applied to the kernel source first before ICC can correctly complie the Linux kernel. Wher can I get this wrapper? (I have looked all over the web but the only yhing I can find is old documentation)

Hi thaidog, were you asking for a wrapper for 2.6.xx kernel on IA32? I can share one for 10.x compiler with you. I didn't test with 11.0 compiler yet.

TyMac · ‎11-18-2008

Quoting - Feilong H (Intel)

Hi thaidog, were you asking for a wrapper for 2.6.xx kernel on IA32? I can share one for 10.x compiler with you. I didn't test with 11.0 compiler yet.

That would be awsome! I am using the 10 version right now since that is what is available in portage. That is the exact one I am looking for... IA32.

Feilong_H_Intel · ‎11-18-2008

The following is an example of wrapper script. Please try it with a newer update of icc 10.1.

#--------------------------------------------------------

# This is a wrapper script for icc 10.1 on IA-32

#--------------------------------------------------------

ARGS=$@

ICCARGS="-fno-builtin"

# For loop to change options of icc

for ARG in $@

do

case $ARG in

-fno-stack-protector )

ICCARGS="$ICCARGS -fno-stack-security-check"

;;

-Wno-pointer-sign | -msoft-float | -ffreestanding )

;;

* )

ICCARGS="$ICCARGS $ARG"

;;

esac

done

icc $ICCARGS

exit $?

YannGolanski · ‎11-19-2008

Quoting - nanometrics

Bummer.

I tried to compile the linux kernel with ICC and got into a horrible mess. I think it is way too embedded with GCC for it to work but if you managed to get it working, I would be VERY interested.

If you need a hand, please ask.

TyMac · ‎11-19-2008

Quoting - Feilong H (Intel)

The following is an example of wrapper script. Please try it with a newer update of icc 10.1.

#--------------------------------------------------------

# This is a wrapper script for icc 10.1 on IA-32

#--------------------------------------------------------

ARGS=$@

ICCARGS="-fno-builtin"

# For loop to change options of icc

for ARG in $@

do

case $ARG in

-fno-stack-protector )

ICCARGS="$ICCARGS -fno-stack-security-check"

;;

-Wno-pointer-sign | -msoft-float | -ffreestanding )

;;

* )

ICCARGS="$ICCARGS $ARG"

;;

esac

done

icc $ICCARGS

exit $?

Well I've got version 10.0. Not sure where to find 10.1. I got this error when trying to do it with 10.0:

gentoo_x86_32 ~ # cd /usr/src/linux
gentoo_x86_32 linux # nano intelwrapper
gentoo_x86_32 linux # make HOSTCC=intelwrapper CC=intelwrapper
/usr/src/linux-2.6.25-gentoo-r7/scripts/gcc-version.sh: line 25: intelwrapper: command not found
/usr/src/linux-2.6.25-gentoo-r7/scripts/gcc-version.sh: line 26: intelwrapper: command not found
make: intelwrapper: Command not found
CHK include/linux/version.h
CHK include/linux/utsrelease.h
HOSTCC scripts/basic/fixdep
/bin/sh: intelwrapper: command not found
make[1]: *** [scripts/basic/fixdep] Error 127
make: *** [scripts_basic] Error 2
gentoo_x86_32 linux #

EDIT: whoops... I did not put it in my path... that's what that error is.

TyMac · ‎11-19-2008

Quoting - nanometrics

Quoting - nanometrics

Bummer.

I tried to compile the linux kernel with ICC and got into a horrible mess. I think it is way too embedded with GCC for it to work but if you managed to get it working, I would be VERY interested.

If you need a hand, please ask.

A hand would be great. I have version 10 not 10.1. Do you know where to get 10.1? I got the wrapper working... but after a few min it errored:

make[1]: *** [arch/x86/vdso/vdso32-int80.so.dbg] Error 1
make: *** [arch/x86/vdso] Error 2

Other people at the gentoo forums are trying it but they are running in to similar issues.

Feilong_H_Intel · ‎11-19-2008

Login to https://registrationcenter.intel.com, then download 10.1 compiler.

I successfully built a kernel (that is very close to RHEL5 kernel)withthe above wrapper script. A few source code patches are needed. Could you please show me a few more lines in your build log, so that I can see what the problem is?

Let metry to list all patches you might need to apply to your kernel source code.

add the following line at the end of include/linux/compiler-intel.h.
#undef __compiler_offsetof
arch/i386/kernel/apm.c, remove "static"
staticstruct {
unsigned longoffset;
unsigned shortsegment;
}apm_bios_entry;
include/linux/module.h, remove "static"
staticconst unsigned long __kcrctab_##sym
__attribute_used__
__attribute__((section("__kcrctab" sec), unused))
= (unsigned long) &__crc_##sym;
...
#define __EXPORT_SYMBOL(sym, sec)
extern typeof(sym) sym;
__CRC_SYMBOL(sym, sec)
staticconst char __kstrtab_##sym[]
__attribute__((section("__ksymtab_strings")))
= MODULE_SYMBOL_PREFIX #sym;
staticconst struct kernel_symbol __ksymtab_##sym
__attribute_used__
__attribute__((section("__ksymtab" sec), unused))
= { (unsigned long)&sym, __kstrtab_##sym }
Makefile, add libirc_s.a as follow.
--start-group $(vmlinux-main) /opt/intel/cc/10.1.021/lib/libirc_s.a --end-group

TyMac · ‎11-20-2008

Quoting - Feilong H (Intel)

Login to https://registrationcenter.intel.com, then download 10.1 compiler.

I successfully built a kernel (that is very close to RHEL5 kernel)withthe above wrapper script. A few source code patches are needed. Could you please show me a few more lines in your build log, so that I can see what the problem is?

Let metry to list all patches you might need to apply to your kernel source code.

add the following line at the end of include/linux/compiler-intel.h.
#undef __compiler_offsetof

arch/i386/kernel/apm.c, remove "static"
staticstruct {
unsigned longoffset;
unsigned shortsegment;
}apm_bios_entry;

include/linux/module.h, remove "static"
staticconst unsigned long __kcrctab_##sym
__attribute_used__
__attribute__((section("__kcrctab" sec), unused))
= (unsigned long) &__crc_##sym;
...
#define __EXPORT_SYMBOL(sym, sec)
extern typeof(sym) sym;
__CRC_SYMBOL(sym, sec)
staticconst char __kstrtab_##sym[]
__attribute__((section("__ksymtab_strings")))
= MODULE_SYMBOL_PREFIX #sym;
staticconst struct kernel_symbol __ksymtab_##sym
__attribute_used__
__attribute__((section("__ksymtab" sec), unused))
= { (unsigned long)&sym, __kstrtab_##sym }

Makefile, add libirc_s.a as follow.
--start-group $(vmlinux-main) /opt/intel/cc/10.1.021/lib/libirc_s.a --end-group

I got the update to 10.1 but it died again (I have not had a chance to try those changes you added in the post above yet though) Here is the build log about 50 lines to the bottom:

kernel/pid.c(215): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(put_pid);
^

kernel/pid.c(266): warning #188: enumerated type mixed with another type
for (type = 0; type < PIDTYPE_MAX; ++type)
^

kernel/pid.c(297): error: subscript must be constant
return container_of(pnr, struct pid,
^

kernel/pid.c(302): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(find_pid_ns);
^

kernel/pid.c(308): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(find_vpid);
^

kernel/pid.c(314): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(find_pid);
^

kernel/pid.c(366): error: subscript must be constant
result = hlist_entry(first, struct task_struct, pids[(type)].node);
^

kernel/pid.c(370): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(pid_task);
^

kernel/pid.c(378): warning #188: enumerated type mixed with another type
return pid_task(find_pid_ns(nr, ns), type);
^

kernel/pid.c(381): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(find_task_by_pid_type_ns);
^

kernel/pid.c(387): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(find_task_by_pid);
^

kernel/pid.c(394): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(find_task_by_vpid);
^

kernel/pid.c(400): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(find_task_by_pid_ns);
^

kernel/pid.c(450): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(pid_vnr);
^

kernel/pid.c(456): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(task_pid_nr_ns);
^

kernel/pid.c(462): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(task_tgid_nr_ns);
^

kernel/pid.c(468): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(task_pgrp_nr_ns);
^

kernel/pid.c(474): warning #1419: external declaration in primary source file
EXPORT_SYMBOL(task_session_nr_ns);
^

kernel/pid.c(494): warning #1419: external declaration in primary source file
EXPORT_SYMBOL_GPL(find_get_pid);
^

kernel/pid.c(501): warning #1418: external function definition with no prior declaration
void __init pidhash_init(void)
^

kernel/pid.c(512): remark #181: argument is incompatible with corresponding format string conversion
pidhash_size * sizeof(struct hlist_head));
^

kernel/pid.c(521): warning #1418: external function definition with no prior declaration
void __init pidmap_init(void)
^

compilation aborted for kernel/pid.c (code 2)
make[1]: *** [kernel/pid.o] Error 2
make: *** [kernel] Error 2

TyMac · ‎11-20-2008

For the following line:

arch/i386/kernel/apm.c, remove "static"
staticstruct {
unsigned longoffset;
unsigned shortsegment;
}apm_bios_entry;

I do not have that directory: /usr/src/linux/arch/i386/kernel/

I have:

/usr/src/linux/arch/i386/boot

(Where bzImage is storred)

I made the other modifications and the kernel seemsed to compile to the very end and then it errored:

compilation aborted for arch/x86/boot/mca.c (code 2)
make[1]: *** [arch/x86/boot/mca.o] Error 2
make: *** [bzImage] Error 2

#################################################################################

Here is build log about 50 lines to the bottom:

static inline int memcmp(const void *s1, const void *s2, size_t len)
^

arch/x86/boot/boot.h(174): remark #593: parameter "len" was set but never used
static inline int memcmp(const void *s1, const void *s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "s1" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "s2" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "len" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "s1" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "s2" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "len" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/main.c(66): remark #593: variable "ax" was set but never used
u16 ax = 0x0305;
^

arch/x86/boot/main.c(67): remark #593: variable "bx" was set but never used
u16 bx = 0;
^

arch/x86/boot/main.c(122): warning #1079: return type of function "main" must be "int"
void main(void)
^

IPO: WARNING: File scope asm disables -ipo
CC arch/x86/boot/mca.o
icc: command line warning #10006: ignoring unknown option '-fno-toplevel-reorder'
arch/x86/boot/boot.h(174): remark #593: parameter "s1" was set but never used
static inline int memcmp(const void *s1, const void *s2, size_t len)
^

arch/x86/boot/boot.h(174): remark #593: parameter "s2" was set but never used
static inline int memcmp(const void *s1, const void *s2, size_t len)
^

arch/x86/boot/boot.h(174): remark #593: parameter "len" was set but never used
static inline int memcmp(const void *s1, const void *s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "s1" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "s2" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(182): remark #593: parameter "len" was set but never used
static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "s1" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "s2" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/boot.h(189): remark #593: parameter "len" was set but never used
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
^

arch/x86/boot/mca.c(29): error: register "ax" used more than once
: "=acd" (err), "=acdSD" (es), "=b" (bx)
^

arch/x86/boot/mca.c(29): error: register "cx" used more than once
: "=acd" (err), "=acdSD" (es), "=b" (bx)
^

arch/x86/boot/mca.c(29): error: register "dx" used more than once
: "=acd" (err), "=acdSD" (es), "=b" (bx)
^

compilation aborted for arch/x86/boot/mca.c (code 2)
make[1]: *** [arch/x86/boot/mca.o] Error 2
make: *** [bzImage] Error 2

#####################################################################

Also I had to use:

*Makefile, add libirc_s.a as follow.

--start-group $(vmlinux-main) /opt/intel/cc/10.1.018/lib/libirc_s.a --end-group

Instead of:

*Makefile, add libirc_s.a as follow.

--start-group $(vmlinux-main) /opt/intel/cc/10.1.021/lib/libirc_s.a --end-group

Feilong_H_Intel · ‎11-21-2008

I don't have arch/x86/boot/main.c in my source code. It looks the error are coming from an inline assembly code. If you can extractthat piece of codeand create a small test case for me to reproduce the error, that'll be great.

If there is no way to create a smaller test case, could you please preprocess it with proper command line and upload the preprocessed code, so that I can look into it?

In order to extract the command line for arch/x86/boot/main.c, just issue "make HOSTCC=intelwrapper CC=intelwrapper V=1". It will printcommand lines along with various warnings & errors. Find the command line for arch/x86/boot/main.c and replace -c with -E. Re-run the command line and the compiler will print preprocessedC code.

TyMac · ‎11-21-2008

Quoting - Feilong H (Intel)

I don't have arch/x86/boot/main.c in my source code. It looks the error are coming from an inline assembly code. If you can extractthat piece of codeand create a small test case for me to reproduce the error, that'll be great.

If there is no way to create a smaller test case, could you please preprocess it with proper command line and upload the preprocessed code, so that I can look into it?

In order to extract the command line for arch/x86/boot/main.c, just issue "make HOSTCC=intelwrapper CC=intelwrapper V=1". It will printcommand lines along with various warnings & errors. Find the command line for arch/x86/boot/main.c and replace -c with -E. Re-run the command line and the compiler will print preprocessedC code.

Are these the lines you are talking about?

arch/x86/boot/main.c(66): remark #593: variable "ax" was set but never used
u16 ax = 0x0305;
^

arch/x86/boot/main.c(67): remark #593: variable "bx" was set but never used
u16 bx = 0;
^

arch/x86/boot/main.c(122): warning #1079: return type of function "main" must be "int"
void main(void)
^
############################################

I did a: cat arch/x86/boot/main.c but I did not see a -c to replace with the -E

Maybe I am not understanding you correcty?

EDIT: If you would like I can give you access to the development box via ssh and sudo acct?

Feilong_H_Intel · ‎11-24-2008

thaidog,

You need to do "make HOSTCC=intelwrapper CC=intelwrapper V=1". In the build log, try to finda command line like

intelwrapper arch/x86/boot/main.c

change -c to -E in the above command line and append > main-prep.c at the end. Re-run it. main-prep.c should contain preprocessed source code, which is what I need.

intelwrapper -E arch/x86/boot/main.c > main-prep.c

Thanks,

Feilong

TyMac · ‎11-24-2008

Quoting - Feilong H (Intel)

thaidog,

You need to do "make HOSTCC=intelwrapper CC=intelwrapper V=1". In the build log, try to finda command line like

intelwrapper arch/x86/boot/main.c

change -c to -E in the above command line and append > main-prep.c at the end. Re-run it. main-prep.c should contain preprocessed source code, which is what I need.

intelwrapper -E arch/x86/boot/main.c > main-prep.c

Thanks,

Feilong

I do not see that line from your command - here is the output:

gentoo_x86_32 bin # cd /usr/src/linux
gentoo_x86_32 linux # make HOSTCC=intelwrapper CC=intelwrapper V=1
/usr/src/linux-2.6.25-gentoo-r7/scripts/gcc-version.sh: line 25: intelwrapper: command not found
/usr/src/linux-2.6.25-gentoo-r7/scripts/gcc-version.sh: line 26: intelwrapper: command not found
make: intelwrapper: Command not found
rm -f include/config/kernel.release
echo 2.6.25-gentoo-r7 > include/config/kernel.release
set -e; :; mkdir -p include/linux/; (echo #define LINUX_VERSION_CODE 132633; echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) < /usr/src/linux-2.6.25-gentoo-r7/Makefile > include/linux/version.h.tmp; if [ -r include/linux/version.h ] && cmp -s include/linux/version.h include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp; else :; mv -f include/linux/version.h.tmp include/linux/version.h; fi
set -e; :; mkdir -p include/linux/; if [ `echo -n "2.6.25-gentoo-r7" | wc -c ` -gt 64 ]; then echo '"2.6.25-gentoo-r7" exceeds 64 characters' >&2; exit 1; fi; (echo #define UTS_RELEASE "2.6.25-gentoo-r7";) < include/config/kernel.release > include/linux/utsrelease.h.tmp; if [ -r include/linux/utsrelease.h ] && cmp -s include/linux/utsrelease.h include/linux/utsrelease.h.tmp; then rm -f include/linux/utsrelease.h.tmp; else :; mv -f include/linux/utsrelease.h.tmp include/linux/utsrelease.h; fi
set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`;
if [ -L include/asm ]; then
if [ "$asmlink" != "x86" ]; then
echo "ERROR: the symlink include/asm points to asm-$asmlink but asm-x86 was expected";
echo " set ARCH or save .config and run 'make mrproper' to fix it";
exit 1;
fi;
else
echo ' SYMLINK include/asm -> include/asm-x86';
if [ ! -d include ]; then
mkdir -p include;
fi;
ln -fsn asm-x86 include/asm;
fi
mkdir -p .tmp_versions ; rm -f .tmp_versions/*
make -f scripts/Makefile.build obj=scripts/basic
(cat /dev/null; ) > scripts/basic/modules.order
make -f scripts/Makefile.build obj=.
(cat /dev/null; ) > modules.order
mkdir -p arch/x86/kernel/
intelwrapper -Wp,-MD,arch/x86/kernel/.asm-offsets.s.d -nostdinc -isystem -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Os -msoft-float -mregparm=3 -freg-struct-return -march=i686 -ffreestanding -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -Iinclude/asm-x86/mach-generic -Iinclude/asm-x86/mach-default -fno-omit-frame-pointer -fno-optimize-sibling-calls -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(asm_offsets)" -D"KBUILD_MODNAME=KBUILD_STR(asm_offsets)" -fverbose-asm -S -o arch/x86/kernel/asm-offsets.s arch/x86/kernel/asm-offsets.c
/bin/sh: intelwrapper: command not found
make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 127
make: *** [prepare0] Error 2
gentoo_x86_32 linux #

Feilong_H_Intel · ‎11-24-2008

Obviously the filename of your wrapper is not intelwrapper. Please replace intelwrapper with the full path name of your wrapper script.

$ make HOSTCC=intelwrapper CC=intelwrapper V=1

TyMac · ‎11-26-2008

Quoting - Feilong H (Intel)

Obviously the filename of your wrapper is not intelwrapper. Please replace intelwrapper with the full path name of your wrapper script.

$ make HOSTCC=intelwrapper CC=intelwrapper V=1

That is the name of it and it was already in my path... I copied over again and got this:

http://www.tyler.mcadams.com/build.txt

http://www.tyler.mcadams.com/kernellog.txt

http://www.tyler.mcadams.com/kernellog2.txt

Could not find anything exactly line like you are looking for... the only thing that ends in main.c are lines like this:

drivers/net/e1000/e1000_main.c(258): remark #177: function "__check_debug" was declared but never referenced
module_param(debug, int, 0);

Could be easier if I just give you a logon. You can e-mail me at: tyler@mcadams.com

Feilong_H_Intel · ‎11-26-2008

I looked at http://www.tyler.mcadams.com/build.txt. It looks that the error occured at arch/x86/boot/mca.c. I copied the command line and changed -c to -E. Please run the following command line and upload mca-prep.c for me.

intelwrapper -Wp,-MD,arch/x86/boot/.mca.o.d -nostdinc -isystem /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Iinclude -include include/linux/autoconf.h -g -Os -D_SETUP -D__KERNEL__ -Wall -Wstrict-prototypes -march=i386 -mregparm=3 -include /usr/src/linux-2.6.25-gentoo-r7/arch/x86/boot/code16gcc.h -fno-strict-aliasing -fomit-frame-pointer -ffreestanding -fno-toplevel-reorder -fno-stack-protector -m32 -D__BIG_KERNEL__ -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(mca)" -D"KBUILD_MODNAME=KBUILD_STR(mca)" -E arch/x86/boot/mca.c > mca-prep.c

ps. Due to the corporate firewall, I can't logon to your machine from Intel network...