------- Additional Comments From hjl dot tools at gmail dot com 2009-10-07
22:45 -------
The reasons ia64 kernel does are
1. EPC segment has to be marked PF_X without PF_R.
2. We can only have one PT_LOAD segment in vDSO.
ia64 kernel uses
PHDRS
{
readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */
epc PT_LOAD FILEHDR PHDRS FLAGS FLAGS(1); /* PF_X */
dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
}
so that ld.so can treat readable and epc segments as a single
segment with data and text. ld.so can map a single segment with
data and text parts.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
http://sourceware.org/bugzilla/show_bug.cgi?id=10744
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