[Bug nptl/17165] [alpha] Saved stack pointer is not mangled in unwind_stop jumpbuffer

["rth at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=17165

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING
                 CC|                            |rth at gcc dot gnu.org

--- Comment #3 from Richard Henderson <rth at gcc dot gnu.org> ---
I don't see this problem with mainline glibc, although I admit I
compiled for ev67, not ev4.  I just wouldn't have thought that
would make any difference.

$ ./elf/ld.so --library-path .:elf:math:nptl ~/a.out
unwind

0000000000000000 <__sigsetjmp>:
   0:   00 00 bb 27     ldah    gp,0(t12)
                        0: GPDISP       .text+0x4
   4:   00 00 bd 23     lda     gp,0(gp)
   8:   00 00 30 b5     stq     s0,0(a0)
   c:   08 00 50 b5     stq     s1,8(a0)
  10:   10 00 70 b5     stq     s2,16(a0)
  14:   18 00 90 b5     stq     s3,24(a0)
  18:   20 00 b0 b5     stq     s4,32(a0)
  1c:   28 00 d0 b5     stq     s5,40(a0)
  20:   00 00 3d a4     ldq     t0,0(gp)
                        20: ELF_LITERAL __pointer_chk_guard
  24:   00 00 21 a4     ldq     t0,0(t0)
                        24: LITUSE      .text+0x1
  28:   02 08 41 47     xor     ra,t0,t1
  2c:   30 00 50 b4     stq     t1,48(a0)
  30:   02 08 c1 47     xor     sp,t0,t1
  34:   40 00 50 b4     stq     t1,64(a0)
  38:   02 08 e1 45     xor     fp,t0,t1
  3c:   38 00 50 b4     stq     t1,56(a0)

Can you please re-verify mainline?  We're going to cut 2.20 soon.

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