[kbuild-devel] Problems with make menuconfig of linux2.6.0-test5

[Martin Schaffner]

Hi,

When doing make menuconfig of linux2.6.0-test5, I noted some issues:

1) The configuration item PowerMac DMA sound support under Sound card 
support in the Sound Menu should be in the Open Sound System Menu, 
because the associated file is in the oss subdirectory, and because 
there is also an ALSA driver for PowerMac sound.

2) In the main menu, there are two items called General Setup. IMO the 
items from the first General setup menu could go into the second 
General setup menu, so the first menu could be removed.

3) several menu items react strangely to help, for example FDDI 
driver support in Networking support:  no help comes up, instead the 
cursor jumps to another menu item. The same thing happens if help is 
invoked for the second time on a submenu item ( XXX -- ) in a submenu 
of the main menu (for example on Ethernet (1000 Mbit) in Networking 
support. I would expect in the first case the no help available 
screen, and in the second case the general menuconfig help, which 
appears if you invoke help on a submenu item for the first time.

4) I can't invoke make menuconfig if I don't have write access to the 
linux kernel directory (useful to just look at a configuration of a 
write-protected source tree)

Martin



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[kbuild-devel] Build problems with x86_64 and gcov-kernel patch

[Paul Larson]

I'm having a build problem with x86-64 when I tried to port the
gcov-kernel patch to it, I think mainly due to the modified linker
script stuff under arch/x86_64/ia32.  Here's some output at the end with
KBUILD_VERBOSE=1 turned on:

  CHK include/linux/version.h
make -f scripts/Makefile.build obj=scripts
make -f scripts/Makefile.build obj=arch/x86_64/kernel
arch/x86_64/kernel/asm-offsets.s
make[1]: `arch/x86_64/kernel/asm-offsets.s' is up to date.
mkdir -p .tmp_versions
make -f scripts/Makefile.build obj=init
  CHK include/linux/compile.h
make -f scripts/Makefile.build obj=usr
make -f scripts/Makefile.build obj=arch/x86_64/kernel
make -f scripts/Makefile.build obj=arch/x86_64/kernel/acpi
make -f scripts/Makefile.build obj=arch/x86_64/kernel/mtrr
make -f scripts/Makefile.build obj=arch/x86_64/mm
make -f scripts/Makefile.build obj=arch/x86_64/ia32
  gcc -Wp,-MD,arch/x86_64/ia32/.vsyscall.o.d -D__ASSEMBLY__ -D__KERNEL__
-Iinclude -nostdinc -iwithprefix include   -m32 -c -o
arch/x86_64/ia32/vsyscall.o arch/x86_64/ia32/vsyscall.S
gcc -m32 -nostdlib -shared -s -Wl,-soname=linux-gate.so.1 \
-o arch/x86_64/ia32/vsyscall.so
-Wl,-T,arch/x86_64/ia32/vsyscall.lds arch/x86_64/ia32/vsyscall.o
  gcc -Wp,-MD,arch/x86_64/ia32/.syscall32.o.d -D__KERNEL__ -Iinclude
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing
-fno-common -mno-red-zone -mcmodel=kernel -pipe
-fno-reorder-blocks   -finline-limit=2000 -Wno-sign-compare
-fno-asynchronous-unwind-tables -fomit-frame-pointer -fprofile-arcs
-ftest-coverage -nostdinc -iwithprefix include   
-DKBUILD_BASENAME=syscall32 -DKBUILD_MODNAME=syscall32 -E -o
arch/x86_64/ia32/syscall32.o arch/x86_64/ia32/syscall32.c  cd
arch/x86_64/ia32/  gcc -D__KERNEL__
-I/home/plars/kernel/linux-2.6.0-test1-gcov/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-mno-red-zone -mcmodel=kernel -pipe -fno-reorder-blocks
-finline-limit=2000 -Wno-sign-compare -fno-asynchronous-unwind-tables
-fomit-frame-pointer -fprofile-arcs -ftest-coverage -nostdinc
-iwithprefix include -DKBUILD_BASENAME=syscall32
-DKBUILD_MODNAME=syscall32 -c -o syscall32.o syscall32.c  cd
/home/plars/kernel/linux-2.6.0-test1-gcov
{standard input}: Assembler messages:
{standard input}:5: Error: file not found: arch/x86_64/ia32/vsyscall.so
/bin/sh: line 1: arch/x86_64/ia32/.syscall32.o.tmp: No such file or
directory
make[1]: *** [arch/x86_64/ia32/syscall32.o] Error 1
make: *** [arch/x86_64/ia32] Error 2

Andi Kleen suggested that this particular file may not like being
compiled with -fprofile-arcs -ftest-coverage, but there doesn't seem to
be a clear way to remove the options.  I think the problem is actually a
little more than that though, because of other changes made to
Makefile.build by the gcov-kernel patch (I attached the latest
version).  The kernel I've been trying this on is 2.6.0-test1.  Do you
have any ideas about how to fix this?  I'm not on the list, so please
include me directly in replies.

Thanks,
Paul Larson



gcov-2.6.0-test3.patch.gz
Description: GNU Zip compressed data