There are three minor bugs breaking Go 1.16 with the current version of
garble, after the import path obfuscation refactor:
1) Stripping the runtime results in an unused import error. This PR
fixes that.
2) The asm.txt test seems to be broken; something to do with the export
data not being right for the exported assembly func.
3) The obfuscated build of std fails, since our runtimeRelated table was
generated for Go 1.15, not 1.16.
This PR fixes the first issue, adds conditional skip lines for 1.16 for
the other two issues, and enables 1.16 on CI.
Note that 1.16 support is not here just yet, because of the other two
issues. As such, no doc changes.
Updates #124.
Since it's been failing for weeks, it's practically useless for now.
Even with continue-on-error, the failures still look scary at first
glance.
We can re-enable this job once we fix master.
Many files were missing copyright, so also add a short script to add the
missing lines with the current year, and run it.
The AUTHORS file is also self-explanatory. Contributors can add
themselves there, or we can simply update it from time to time via
git-shortlog.
Since we have two scripts now, set up a directory for them.
Most notably, x/mod now includes the GOPRIVATE pattern-matching API we
were copying before, so we can use it directly.
Also bump the Go version requirement to 1.15, in preparation for the
import path obfuscation PR, and don't let the gotip job fail the entire
workflow.
First, our original append line was completely ineffective; we never
used that "flags" slice again. Second, we only attempted to use the flag
when we obfuscated a package.
In fact, we never care about debugging information here, so for any
package we compile, we can add "-dwarf=false". At the moment, we compile
all packages, even if they aren't to be obfuscated, due to the lack of
access to the build cache.
As such, we save a significant amount of work. The numbers below were
obtained on a quiet machine with "go test -bench=. -benchtime=10x", six
times before and after the change.
name old time/op new time/op delta
Build-8 2.06s ± 4% 1.87s ± 2% -9.21% (p=0.002 n=6+6)
name old sys-time/op new sys-time/op delta
Build-8 1.51s ± 2% 1.46s ± 1% -3.12% (p=0.004 n=6+5)
name old user-time/op new user-time/op delta
Build-8 11.9s ± 2% 10.8s ± 1% -8.71% (p=0.002 n=6+6)
While at it, only do CI builds on pushes and PRs to the master branch,
so that my PRs created from the same repo don't trigger duplicate
builds.
Since the new linker was failing on our crypto/aes shenanigans until the
recent commit to remove it for literal obfuscation.
Building Go does take about two minutes on the CI machine, but that's
fast enough. One can see the exact version that was used via the 'go
version' line.
It fails on all three GitHub platforms, for some reason. Something
related to permission denied errors in the module cache.
It's unclear to me why we're trying to modify the build cache. For now,
un-break master.
Daniel Martí
lu4p