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authorDavid S. Miller <davem@davemloft.net>2010-02-20 13:40:59 -0800
committerDavid S. Miller <davem@davemloft.net>2010-02-20 13:48:06 -0800
commit5c866a8b9be0bd8dff97dd8143e55dd228617c23 (patch)
tree4ff0d2cb41595f5252997879c04baaaef02a4953 /sysdeps
parent1d204bf2945617be272f88ee233adbceeffd5315 (diff)
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Fix PLT rewrite when prelinking fails on 32-bit sparc.
When prelinking fails we have to rewrite the PLT, but the code doing so forgets to adjust all rela->r_offset addresses by the location of where the object was actually mapped.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/sparc/sparc32/dl-machine.h16
1 files changed, 10 insertions, 6 deletions
diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h
index e1385f7aca..53257104a6 100644
--- a/sysdeps/sparc/sparc32/dl-machine.h
+++ b/sysdeps/sparc/sparc32/dl-machine.h
@@ -166,15 +166,19 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
in .rela.plt. */
while (rela < relaend)
{
- *(unsigned int *) rela->r_offset
- = OPCODE_SETHI_G1 | (rela->r_offset - (Elf32_Addr) plt);
- *(unsigned int *) (rela->r_offset + 4)
+ *(unsigned int *) (rela->r_offset + l->l_addr)
+ = OPCODE_SETHI_G1 | (rela->r_offset + l->l_addr
+ - (Elf32_Addr) plt);
+ *(unsigned int *) (rela->r_offset + l->l_addr + 4)
= OPCODE_BA | ((((Elf32_Addr) plt
- - rela->r_offset - 4) >> 2) & 0x3fffff);
+ - rela->r_offset - l->l_addr - 4) >> 2)
+ & 0x3fffff);
if (do_flush)
{
- __asm __volatile ("flush %0" : : "r"(rela->r_offset));
- __asm __volatile ("flush %0+4" : : "r"(rela->r_offset));
+ __asm __volatile ("flush %0" : : "r" (rela->r_offset
+ + l->l_addr));
+ __asm __volatile ("flush %0+4" : : "r" (rela->r_offset
+ + l->l_addr));
}
++rela;
}