[Bug bootstrap/33100] [4.3 regression] on bootstrap getting section .eh_frame: bad cie version 0: offset 0x0

[hjl at lucon dot org]

------- Comment #11 from hjl at lucon dot org  2007-09-11 13:43 -------
.eh_frame section in the new crtend.S only has 4 byte:

  [ 7] .eh_frame         X86_64_UNWIND    0000000000000000  000000b8
       0000000000000004  0000000000000000   A       0     0     4

which is the zero terminator:

bash-3.2$ readelf -wf crtend.o 
The section .eh_frame contains:

00000000 ZERO terminator

bash-3.2$

Sun linker doesn't properly handle ZERO terminator in .eh_frame. It looks
like a Sun linker bug to me.

BTW, did your elfdump report

vs. (after):

Unwind Section: .eh_frame
 FDE: [0x00000000]
    length: 0x00  cieptr: 0x18
    initloc: 0x00000000  addrrange: 0x0000
   Auxiliary vals:
CIE: [0x00000004]
 length: 0x18 cieid: 0
 version: 1  augstring: `zR'
 codealign: 0x1  dataalign: -8  retaddr: 16

It doesn't look like .eh_frame in the new crtend.o at all. That may be
a bug in your elfdump.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33100