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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-06-05 17:49:14 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-06-22 19:23:20 +0530 |
| commit | 3abc94480225677ea08af817d56edfb0df9e9b80 (patch) | |
| tree | 364c3c03f33d3934f53621669aba62023d5a5633 /lib/average.c | |
| parent | 2ed21dae021db1f9f988494ceee519290217520d (diff) | |
| download | op-kernel-dev-3abc94480225677ea08af817d56edfb0df9e9b80.zip op-kernel-dev-3abc94480225677ea08af817d56edfb0df9e9b80.tar.gz | |
ARC: [mm] Make stack/heap Non-executable by default
1. For VM_EXEC based delayed dcache/icache flush, reduces the number of
flushes.
2. Makes this security feature ON by default rather than OFF before.
3. Applications can use mprotect() to selectively override this.
4. ELF binaries have a GNU_STACK segment which can easily override the
kernel default permissions.
For nested-functions/trampolines, gcc already auto-enables executable
stack in elf. Others needing this can use -Wl,-z,execstack option.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'lib/average.c')
0 files changed, 0 insertions, 0 deletions
