>
> This appears to be a bug in DBX.
>
The main problem is not with the backslash. The main problem is memcpy from
NULL address:
RSA validation suite running...
signal SEGV (no mapping at the fault address) in _memcpy at
0xffffffff7e200678
0xffffffff7e200678: _memcpy+0x0044: ldx [%o1 + %o0], %o3
Current function is CryptoPP::CopyWords
28 memcpy(r, a, n*WORD_SIZE);^M
(dbx) print r
...
(dbx) print a
a = (nil)
This NULL address comes from some field m_n:
Current function is CryptoPP::RSAFunction::PreimageBound
47 Integer PreimageBound() const {return m_n;}^M
(dbx) print m_n
dbx: internal error: /home/abuild/agorev/cryptopp/cryptopp-master.2/misc.h:
51: bad token '\'
dbx: warning: Errors encountered while skimming "rsa.cpp" for macro
definitions.
See `help macro skimming-errors' for more explanation.
m_n = {
reg = {
m_alloc = {
/* try using "print -r" to see any inherited members */
}
m_mark = 1025U
m_size = 0
m_ptr = (nil)
}
sign = POSITIVE
}
(dbx)
But I don't know yet why it is so.
> Nothing is jumping out at me for the RSA gear. For completeness, did you
> perform a 'make distclean' to ensure everything got rebuilt using the same
> compiler flags?
Yes, kind of. After changing CMakeLists.txt I just removed all Makefiles
and then regenerated them again (see attached log in my previous email):
$ vim ../CMakeLists.txt
$ rm -rf ./*
$ cmake -DCMAKE_BUILD_TYPE=Debug ..
As I understand technically it is a build from scratch.
I think that change casts a wider net than needed. -xmemalign=4i should be
> limited to SPARC64, and maybe SPARC. It should not apply to the Intel
> machines. Applying it to Intel machines will cause a warning.
...
> Yeah, we may as well back out the former change, and go with the
> -xmemalign=4i. A new PR will be fine.
>
Ok. Will try to separate them, and will make PR.
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