commit db4bce05493d09a20f1ebc0ab68c82e906327afd
author Chris Dearman <chris@mips.com> Thu Mar 10 10:48:14 2011 -0800
committer Raghu Gandham <raghu@mips.com> Thu Mar 10 10:48:14 2011 -0800
tree 9aae682c98e2c49e6480b9329b16d5153c030334
parent fed58049d50083e4c960d89f4bbd516a181c2d18

Use MAP_FIXED when allocating prelinked shared library regions

Prelinked libraries must be mapped to a fixed address. MAP_FIXED is ignored
for non-prelinked libraries (si->base==0)

Signed-off-by: Raghu Gandham <raghu@mips.com>

linker/linker.c

diff --git a/linker/linker.c b/linker/linker.c
index c4f54f7..00f36c0 100644
--- a/linker/linker.c
+++ b/linker/linker.c
@@ -822,7 +822,7 @@
 static int reserve_mem_region(soinfo *si)
 {
     void *base = mmap((void *)si->base, si->size, PROT_READ | PROT_EXEC,
-                      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+                      MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
     if (base == MAP_FAILED) {
         DL_ERR("%5d can NOT map (%sprelinked) library '%s' at 0x%08x "
               "as requested, will try general pool: %d (%s)",