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(elf_machine_rel): Correct handling of PC24 relocs with negative value.

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This commit is contained in:
Ulrich Drepper 2001-02-05 05:59:49 +00:00
parent 1ed6488cdb
commit b8f7c6f761
1 changed files with 14 additions and 6 deletions
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20
sysdeps/arm/dl-machine.h
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@ -478,17 +478,25 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
case R_ARM_PC24:
{
Elf32_Sword addend;
Elf32_Addr newvalue;
Elf32_Addr newvalue, topbits;
addend = *reloc_addr & 0x00ffffff;
if (addend & 0x00800000) addend |= 0xff000000;
newvalue = value - (Elf32_Addr)reloc_addr + (addend << 2);
if (newvalue & 0xfc000003)
newvalue = fix_bad_pc24(reloc_addr, value)
- (Elf32_Addr)reloc_addr + (addend << 2);
newvalue = newvalue >> 2;
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
newvalue = fix_bad_pc24(reloc_addr, value)
- (Elf32_Addr)reloc_addr + (addend << 2);
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
_dl_signal_error (0, map->l_name,
"R_ARM_PC24 relocation out of range");
}
}
newvalue >>= 2;
value = (*reloc_addr & 0xff000000) | (newvalue & 0x00ffffff);
*reloc_addr = value;
}