[help]Creating PLT entries
C Jaiprakash, Noida
C.Jaiprakash@noida.hcltech.com
Fri Sep 24 17:22:00 GMT 2004
Hi,
I am trying to implement creation of PLT entries using existing implementation. Currently the target supports 32 bit displacement so existing plt entries use pc+32 bit addr mode. I want to modify it such that displacement is loaded into a register first and pc,reg addr mode is used. I want to modify this in elf32-m68k.c file.
Following is part of plt entries table
static const bfd_byte elf_m68k_plt0_entry[PLT_ENTRY_SIZE] =
{
0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
0, 0, 0, 0, /* replaced with offset to .got + 4. */
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
0, 0, 0, 0, /* replaced with offset to .got + 8. */
0, 0, 0, 0 /* pad out to 20 bytes. */
};
How can i modify this so that instead of jmp ([%pc,addr]) jmp ([%pc,reg]) is used. Where should i look for modifications?
I have very little idea of binutils, so any kind of help is appreciated.
regards,
c jaiprakash
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