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

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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
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src/stub/src/i386-linux.kernel.vmlinux.asm
+5
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@@ -40,8 +40,13 @@
; In: ; In:
; #eax= &uncompressed [and final entry]; #ds= #es= __BOOT_DS ; #eax= &uncompressed [and final entry]; #ds= #es= __BOOT_DS
; #esp: &compressed; __BOOT_CS ; #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 section LINUX000
//// .byte 0xf1 // qemu In-Circuit-Emulator breakpoint
pop edx // &compressed; length at -4(#edx) pop edx // &compressed; length at -4(#edx)
push eax // MATCH00(1/2) entry address; __BOOT_CS push eax // MATCH00(1/2) entry address; __BOOT_CS
src/stub/src/i386-linux.kernel.vmlinuz.asm
+6
View File
@@ -34,7 +34,13 @@
// ============= ENTRY POINT // ============= 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 section LINUZ000
//// .byte 0xf1 // qemu In-Circuit-Emulator breakpoint
//cli // this must be true already //cli // this must be true already
/* /*