Hi,
I was trying to enable the "stack smashing protection" for node.js(issue
20928<https://github.com/nodejs/node/issues/20928>). And I switched it on using
"-fstack-protector"
And made a benchmark test, while the result is quite strange. Then I found on
my Ubuntu 16.04, the -fstack-protector-strong
Was by default enabled. I checked it using the command:
Gcc -Q -v main.c
And found the -fstack-protector-strong flag was listed inside the "options
passed" by default.
So based on these, I have some questions:
1. I installed gcc from apt-get by default, is Ubuntu providing a
customized version of GCC?
2. If answer of 1 is yes, then you may have a repo that host the
customized GCC code, if I am right, could you please show me where I can find
the proof of that customization?
That would be much appreciated. :) Or if you can't find the right code,
can you show me where I can find the repo, then I can traverse the code and
history to find the proof myself.
Below is my env:
Ubuntu 16.04
Gcc: 5.4.0-6ubuntu1~16.04.9
CPU: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz x86_64
Thanks with regards,
Shaoting
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