Cgo Compilation For Mac
See the branch. It's split into four commits. Here is the overall diff: Here are points you may want to pay special attention to while reviewing (you may know better ways to do them):.
because I couldn't find another way to set them. that we are using.
(I started a tbb-dev thread about the SDK version.). and avoid the use of Xcode-only tools like xcrun. I did a fair amount of searching and did not find an official way to remove these paths.
The problem is being tracked upstream in, which still has no solution. (Note that the upstream issue is about two things: embedded timestamps and variable build paths. We handle the timestamps with faketime and the variable build paths with sed.). The needsrevision is mainly for the following nits: s/clang 0.3.8/clang 3.8.0/ is used for both path and timestamp issue. It seems for the latter we want a different URL?
S/The linux descriptor builds its own copy of gn here/The linux descriptor builds its own copy of gn/ s/the gn so build/the gn so built/ - One thing I was wondering is whether it would be more beneficial to split up the big webrtc patch into smaller ones. It might make it easier to follow the upstreaming efforts that way giving a clear impression on how many patches still need to get upstreamed and making patches easier to write once one or another of those patches is not needed anymore. I don't feel strongly about that, though. D-link wireless dwl-g122 drivers for mac. If you want to leave that as-is, fine with me. I have trouble to understand why faketime is needed now when building go given that we use go built without it for obfs4proxy and meek without any issues. 'including those that arise here while compiling the Go runtime itself' should hold for the latter PTs as well, yet we don't need faketime in those cases.
What is different between the snowflake-client and, say, the obfs4proxy case so that we need faketime for building go itself now? Are the problematic.o files plainly missing in obfs4proxy's and meeks case? Replying to: Looks good. The needsrevision is mainly for the following nits: s/clang 0.3.8/clang 3.8.0/ s/The linux descriptor builds its own copy of gn here/The linux descriptor builds its own copy of gn/ s/the gn so build/the gn so built/ Made a with. Is used for both path and timestamp issue. It seems for the latter we want a different URL? That one URL illustrates both the timestamp and the path issues.
It only talks about the path issue in the text, though. I couldn't find a more specific link for the timestamp issue. This part of the diff is due to a timestamp: 00333430 dc 15 4c 59 00 00 00 00 58 03 00 00 26 03 00 00.LY.X.&. This part of the diff is due to a path: 00359fe0 2f 67 6f 2d 6c 69 6e 6b 2d 32 30 38 38 31 36 34 /go-link-2088164 00359ff0 38 36 2f 67 6f 2e 6f 00 72 75 6e 74 69 6d 65 2e 86/go.o.runtime. One thing I was wondering is whether it would be more beneficial to split up the big webrtc patch into smaller ones. It might make it easier to follow the upstreaming efforts that way giving a clear impression on how many patches still need to get upstreamed and making patches easier to write once one or another of those patches is not needed anymore. I don't feel strongly about that, though.
If you want to leave that as-is, fine with me. The patch actually is already split up into 8 smaller patches, each with their own commit message. They are just concatenated together into one file (i.e., in format).
Cgo Compilation For Mac Pro
I have trouble to understand why faketime is needed now when building go given that we use go built without it for obfs4proxy and meek without any issues. 'including those that arise here while compiling the Go runtime itself' should hold for the latter PTs as well, yet we don't need faketime in those cases. What is different between the snowflake-client and, say, the obfs4proxy case so that we need faketime for building go itself now? Are the problematic.o files plainly missing in obfs4proxy's and meeks case?
I wondered about that too. I believe it is because of cgo. Cgo invokes the system linker (i.e. Clang) and it is actually Clang that is the source of non-determinism, not go itself. See for example: When you import 'C' in your Go package, go build has to do a lot more work to build your code. Building your package is no longer simply passing a list of all the.go files in scope to a single invocation of go tool compile, instead:.
The cgo tool needs to be invoked to generate the C to Go and Go to C thunks and stubs. Your system C compiler has to be invoked for every C file in the package. The individual compilation units are combined together into a single.o file. The resulting.o file take a trip through the system linker for fix-ups against shared objects they reference. Replying to: When looking at commit fcdc2be0a2da32a900d5a09259b75e, I noticed this line in gitian/descriptors/mac/gitian-webrtc.yml: GNARGS+=' goldpath= '$INSTDIR/binutils/bin ' However, I don't think we have a binutils installed in this path in the mac build.
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Is it a line that was copied from the linux descriptor and forgotten? Yes, it is probably a copy-paste error. The GNARGS in both descriptors are probably not minimal. The compile–test cycles are so long that I would try changing more than one thing at a time. If you find that the line is unnecessary, please remove it. Replying to: Yes, it is probably a copy-paste error.
The GNARGS in both descriptors are probably not minimal. The compile–test cycles are so long that I would try changing more than one thing at a time. Ah indeed, testing small changes like this takes a lot of time with gitian. The new build system in tor-browser-build.git should make that kind of changes easier to test as we can rebuild only what changed. If you find that the line is unnecessary, please remove it. I did not include this line when converting those changes to tor-browser-build.git, and it seems to work fine without it.