[Bug ld/16017] LD creates invalid PLT instructions on CORTEX-M3

[meadori at codesourcery dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16017

Meador Inge <meadori at codesourcery dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |meadori at codesourcery dot com

--- Comment #14 from Meador Inge <meadori at codesourcery dot com> ---
I have a need for these patches as well.  While testing them, we noticed that
the current PLT stubs have a bug:

   0x0c00f240,        /* movw    ip, #0xNNNN    */
   0x3c0cea4f,        /* lsl     ip, #12        */
   0x0c00f20f,        /* addw    ip, pc, #0xNNN */
   0xf000f8dc,        /* ldr     pc, [ip]       */

The third instructions clobbers 'ip'.  Thus for non-zero 'ip' values this will
not work.

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