Binfmt_flat: Add minimum support for the Blackfin relocations
Add minimum support for the Blackfin relocations, since we don't have
enough space in each reloc. The idea is to store a value with one
relocation so that subsequent ones can access it.
Actually, this patch is required for Blackfin. Currently if BINFMT_FLAT is
enabled, git-tree kernel will fail to compile.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: David McCullough <davidm@snapgear.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Cc: Miles Bader <miles.bader@necel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 861141b..34e9b06 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -742,6 +742,7 @@
* __start to address 4 so that is okay).
*/
if (rev > OLD_FLAT_VERSION) {
+ unsigned long persistent = 0;
for (i=0; i < relocs; i++) {
unsigned long addr, relval;
@@ -749,6 +750,8 @@
relocated (of course, the address has to be
relocated first). */
relval = ntohl(reloc[i]);
+ if (flat_set_persistent (relval, &persistent))
+ continue;
addr = flat_get_relocate_addr(relval);
rp = (unsigned long *) calc_reloc(addr, libinfo, id, 1);
if (rp == (unsigned long *)RELOC_FAILED) {
@@ -757,7 +760,7 @@
}
/* Get the pointer's value. */
- addr = flat_get_addr_from_rp(rp, relval, flags);
+ addr = flat_get_addr_from_rp(rp, relval, flags, &persistent);
if (addr != 0) {
/*
* Do the relocation. PIC relocs in the data section are