Re: [ACPI] Re: 2.5.44: How to decode call trace

From: Matthew Wilcox (
Date: Wed Oct 23 2002 - 06:48:46 EST

On Wed, Oct 23, 2002 at 12:33:25PM +0200, Olaf Dietsche wrote:
> When I build with "make -k EXTRA_CFLAGS=-g EXTRA_LDFLAGS=-g bzImage",
> I get a ton of error messages from drivers/acpi/include/actypes.h and
> other acpi related stuff, starting with: #error ACPI_MACHINE_WIDTH not
> defined. Maybe this is not the usual way to build with -g, but I don't
> get these errors with "make -k bzImage". Maybe someone is interested
> in this.

Not really. Users shouldn't be overriding EXTRA_CFLAGS, it's for the
benefit of various parts of the kernel. Some other parts of the kernel
you break by doing this:

./arch/i386/mach-generic/Makefile:EXTRA_CFLAGS += -I../kernel
./drivers/ide/pci/Makefile:EXTRA_CFLAGS := -Idrivers/ide
./drivers/message/fusion/Makefile:EXTRA_CFLAGS += ${MPT_CFLAGS}
./drivers/usb/storage/Makefile:EXTRA_CFLAGS := -Idrivers/scsi
./fs/smbfs/Makefile:EXTRA_CFLAGS += -DSMBFS_PARANOIA
./fs/xfs/Makefile:EXTRA_CFLAGS += -Ifs/xfs -funsigned-char
./sound/oss/emu10k1/Makefile: EXTRA_CFLAGS += -DEMU10K1_DEBUG

The normal way to do what you want is to edit the Makefile and add -g
directly to CFLAGS.

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