[Bug ld/5692] New: ld segfault linked to bfd elf error

[pdd at lgsinnovations dot com]

Cross compiling uclibc 0.9.29 on i686-pc-linux-gnu-gcc for a
arm-softfloat-linux-uclibc ran into a segfault on ld. Turns out the problem is
the makefile hands the linker /dev/null for a file, which in turn when the bfd
library tries to get the symbols there is no check for a null pointer (as there
are no symbols). The simple fix is:

--- binutils-2.18.50.0.3/bfd/elf.c.orig 2008-01-29 14:48:45.000000000 -0500
+++ binutils-2.18.50.0.3/bfd/elf.c      2008-01-29 14:52:06.000000000 -0500
@@ -361,6 +361,11 @@
   alloc_ext = NULL;
   alloc_extshndx = NULL;
   bed = get_elf_backend_data (ibfd);
+  if (bed == NULL)
+    {
+      intsym_buf = NULL;
+      goto out;
+    }
   extsym_size = bed->s->sizeof_sym;
   amt = symcount * extsym_size;
   pos = symtab_hdr->sh_offset + symoffset * extsym_size;

I expect there probably is a more elegant solution, but this is quick and dirty.
Have fun!

-- 
           Summary: ld segfault linked to bfd elf error
           Product: binutils
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: pdd at lgsinnovations dot com
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=5692

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