75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
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extern int __text_start__;
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extern int __got_start__;
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extern int __got_end__;
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extern int __rel_start__;
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extern int __rel_end__;
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// extern int __data_rel_ro_start__;
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// extern int __data_rel_ro_end__;
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extern unsigned int data_offset;
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extern unsigned int rel_end;
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void _reloc(unsigned int *gbase, unsigned int tbase)
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{
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int i;
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unsigned int s;
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unsigned int offset;
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unsigned int gs, ge, ts;
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unsigned int *rs, *re;
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unsigned int *pointer;
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unsigned int *drrs;
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unsigned int *drre;
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gs = (unsigned int)&__got_start__;
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ge = (unsigned int)&__got_end__;
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ts = (unsigned int)&__text_start__;
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for (i = 0, s = gs; s < ge; s += 4, i++)
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{
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if (gbase[i] >= gs)
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{
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offset = gbase[i] - gs;
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gbase[i] = offset + (unsigned int)gbase;
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}
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else
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{
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offset = gbase[i] - ts;
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gbase[i] = offset + tbase;
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}
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}
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// drrs = (unsigned int *)&__data_rel_ro_start__;
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// drre = (unsigned int *)&__data_rel_ro_end__;
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// int data_of = data_offset;
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// data_of = data_of;
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// for (i = 0, s = drrs; s < drre; s += 4, i++)
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// {
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// if (drrs[i]) {
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// drrs[i] = (unsigned int )gbase + (drrs[i] - ((unsigned int )&__rel_end__ - tbase));
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// }
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// }
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rs = (unsigned int *)&__rel_start__;
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re = (unsigned int *)&__rel_end__;
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// rel
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for (i = 0, s = (unsigned int)rs; s < (unsigned int)re; s += 8, i += 2)
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{
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if (rs[i + 1] == 0x00000017)
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{
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offset = rs[i] - gs;
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pointer = (unsigned int *)((unsigned int)gbase + offset);
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if (*pointer >= gs)
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{
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offset = *pointer - gs;
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*pointer = offset + (unsigned int)gbase;
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}
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else
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{
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offset = *pointer - ts;
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*pointer = offset + (unsigned int)tbase;
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}
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}
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}
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return;
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}
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