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How to setup kernel debugger in RHEL 6.0
Post 302530971 by Chrisdot on Wednesday 15th of June 2011 01:05:34 PM
06-15-2011
How to setup kernel debugger in RHEL 6.0
Hi, I face up a terrible problem that is for me setting up kdb or any other kernel debugger.
Little background:
I am writing linux kernel driver in C and ASM on host (real) machine that is Linux RHEL 6.0.
I run (I mean debug using printk's) that driver on virtual machine: QEMU, RHEL 6.0 (v 2.6.32-71.el6.x86_64).
I need to watch and modify registers, stack, and memory (because of ASM code).
I found some tutorials, but no one is good for me, because everytime I cannot do some steps.
I have never compiled kernel and generally speaking I am linux beginner
.
Could you help me with some steps?
___
for example this tutorial:
Inside the Linux kernel debugger
I successfully downloaded, unzpied two files (kdb-v4.4-2.6.33-common-1, kdb-v4.4-2.6.33-x86-1).
Unfortunately I even do not have folder /usr/src/linux ^_^.
Little background:
I am writing linux kernel driver in C and ASM on host (real) machine that is Linux RHEL 6.0.
I run (I mean debug using printk's) that driver on virtual machine: QEMU, RHEL 6.0 (v 2.6.32-71.el6.x86_64).
I need to watch and modify registers, stack, and memory (because of ASM code).
I found some tutorials, but no one is good for me, because everytime I cannot do some steps.
I have never compiled kernel and generally speaking I am linux beginner
. Could you help me with some steps?
___
for example this tutorial:
Inside the Linux kernel debugger
I successfully downloaded, unzpied two files (kdb-v4.4-2.6.33-common-1, kdb-v4.4-2.6.33-x86-1).
Unfortunately I even do not have folder /usr/src/linux ^_^.
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LEARN ABOUT CENTOS
grub-file
GRUB-FILE(1) User Commands GRUB-FILE(1) NAME
grub-file - check file type SYNOPSIS
file OPTIONS FILE DESCRIPTION
Check if FILE is of specified type. --is-i386-xen-pae-domu Check if FILE can be booted as i386 PAE Xen unprivileged guest kernel --is-x86_64-xen-domu Check if FILE can be booted as x86_64 Xen unprivileged guest kernel --is-x86-xen-dom0 Check if FILE can be used as Xen x86 privileged guest kernel --is-x86-multiboot Check if FILE can be used as x86 multiboot kernel --is-x86-multiboot2 Check if FILE can be used as x86 multiboot2 kernel --is-arm-linux Check if FILE is ARM Linux --is-arm64-linux Check if FILE is ARM64 Linux --is-ia64-linux Check if FILE is IA64 Linux --is-mips-linux Check if FILE is MIPS Linux --is-mipsel-linux Check if FILE is MIPSEL Linux --is-sparc64-linux Check if FILE is SPARC64 Linux --is-powerpc-linux Check if FILE is POWERPC Linux --is-x86-linux Check if FILE is x86 Linux --is-x86-linux32 Check if FILE is x86 Linux supporting 32-bit protocol --is-x86-kfreebsd Check if FILE is x86 kFreeBSD --is-i386-kfreebsd Check if FILE is i386 kFreeBSD --is-x86_64-kfreebsd Check if FILE is x86_64 kFreeBSD --is-x86-knetbsd Check if FILE is x86 kNetBSD --is-i386-knetbsd Check if FILE is i386 kNetBSD --is-x86_64-knetbsd Check if FILE is x86_64 kNetBSD --is-i386-efi Check if FILE is i386 EFI file --is-x86_64-efi Check if FILE is x86_64 EFI file --is-ia64-efi Check if FILE is IA64 EFI file --is-arm64-efi Check if FILE is ARM64 EFI file --is-arm-efi Check if FILE is ARM EFI file --is-hibernated-hiberfil Check if FILE is hiberfil.sys in hibernated state --is-x86_64-xnu Check if FILE is x86_64 XNU (Mac OS X kernel) --is-i386-xnu Check if FILE is i386 XNU (Mac OS X kernel) --is-xnu-hibr Check if FILE is XNU (Mac OS X kernel) hibernated image --is-x86-bios-bootsector Check if FILE is BIOS bootsector -h, --help Display this help and exit. -u, --usage Display the usage of this command and exit. SEE ALSO
The full documentation for grub-file is maintained as a Texinfo manual. If the info and grub-file programs are properly installed at your site, the command info grub-file should give you access to the complete manual. grub-file (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-FILE(1)