On 03/04/14 12:55, Andrew Fish wrote: > Seems folks are always trying to be creative in this area ….. > > For X64 Xcode does not support relocations. So you need to write RIP relative > code. > > .asm > REPEAT 32 > db 6ah ; push #VectorNum > db ($ - AsmIdtVectorBegin) / ((AsmIdtVectorEnd - AsmIdtVectorBegin) > / 32) ; VectorNum > push rax > mov rax, CommonInterruptEntry > jmp rax > ENDM > > .S > Exception0Handle: > .byte 0x6a # push #VectorNum > .byte 0 > pushq %rax > .byte 0x48, 0xB8 > .quad ASM_PFX(CommonInterruptEntry) > jmp *%rax > > .Andrew get you started idea, I’ve not test this. > > Exception0Handle: > pushb 0 // The .asm macro needs to repeat so I’m guessing that is > driving the db/.byte > pushq %rax > leaq ASM_PFX(CommonInterruptEntry)(%rip), %rax // 7 byte instruction. > jmp *%rax > nop // I’m not sure if it safe to change the size of these > entries. > nop > nop > thanks! I played around some more with this, and with the other sections. but I just finally gave up, and built a crosscompiler instead.
i think a crosscompiler tut in the guide would make thing MUUUUUCH easier for people developing on osx. ------------------------------------------------------------------------------ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
