jory/upx
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

How to debug i386-linux.kernel.vmlinu[xz] under qemu

Browse Source
This commit is contained in:
John Reiser 2006-07-10 13:25:39 -07:00
parent 1897148abc
commit c1d14c150e
2 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/stub/src/i386-linux.kernel.vmlinux.asm
View File

@ -40,8 +40,13 @@
; In:
; #eax= &uncompressed [and final entry]; #ds= #es= __BOOT_DS
; #esp: &compressed; __BOOT_CS
How to debug: run under qemu (http://fabrice.bellard.free.fr/qemu/)
after un-commenting the 0xf1 opcode below. That opcode forces qemu
to stop in gdb. You'll have to "set $pc+=1" by hand.
*/
section LINUX000
//// .byte 0xf1 // qemu In-Circuit-Emulator breakpoint
pop edx // &compressed; length at -4(#edx)
push eax // MATCH00(1/2) entry address; __BOOT_CS

6
src/stub/src/i386-linux.kernel.vmlinuz.asm
View File

@ -34,7 +34,13 @@
// ============= ENTRY POINT
// =============
/*
How to debug: run under qemu (http://fabrice.bellard.free.fr/qemu/)
after un-commenting the 0xf1 opcode below. That opcode forces qemu
to stop in gdb. You'll have to "set $pc+=1" by hand.
*/
section LINUZ000
//// .byte 0xf1 // qemu In-Circuit-Emulator breakpoint
//cli // this must be true already
/*