* mmap patch works in Virtualbox, not in QEMU
@ 2017-11-19 8:25 Lev Olshvang
2017-11-19 19:56 ` valdis.kletnieks at vt.edu
0 siblings, 1 reply; 2+ messages in thread
From: Lev Olshvang @ 2017-11-19 8:25 UTC (permalink / raw)
To: kernelnewbies
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* mmap patch works in Virtualbox, not in QEMU
2017-11-19 8:25 mmap patch works in Virtualbox, not in QEMU Lev Olshvang
@ 2017-11-19 19:56 ` valdis.kletnieks at vt.edu
0 siblings, 0 replies; 2+ messages in thread
From: valdis.kletnieks at vt.edu @ 2017-11-19 19:56 UTC (permalink / raw)
To: kernelnewbies
On Sun, 19 Nov 2017 11:25:57 +0300, Lev Olshvang said:
> I downloaded Buidroot and buil QEMU x86_64 environment with kernel 4.9
> I applied my patch to mmap (added MAP_DENYWRITE for shared libraries) before
> building kernel.
Did you test to make sure that it doesn't apply that flag to mmap for things
other than shared libraries? How do you identify that it's a shared library
and not something else?
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2017-11-19 8:25 mmap patch works in Virtualbox, not in QEMU Lev Olshvang
2017-11-19 19:56 ` valdis.kletnieks at vt.edu
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