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...metimes hard to > notice > > that that was caused by the lack of disk space. > > > > I wonder if we should print out a hint (e.g. "Bus error -- disk full?") > > when we receive a SIGBUS. Any opinions? > > I think we should change the llvm implementation of resize_file to fail > if it cannot allocate the space. That is, it should only use ftruncate > on OS X where apparently HFS allocates space with it. > > If resize_file fails than lld can fail gracefully or use annonymous > memory and a plain write instead of mmap for producing the output. >...

If your system does not support fallocate(2), we use ftruncate(2) to create an output file. fallocate(2) succeeds even if your disk have less space than the requested size, because it creates a sparse file. If you mmap such sparse file, you'll receive a SIGBUS when the disk actually becomes full. So, lld can die suddenly with SIGBUS when your disk becomes full, and currently we are not doing

Currently a power failure or other hard crash can cause lld leave a temporary file around. The same is true for other llvm tools. As an example, put a breakpoint in Writer.cpp:236 ("writeBuildId()") and restart the run a few times. You will get t.tmp43a735a t.tmp4deeabb t.tmp9bacdd3 t.tmpe4115c4 t.tmpeb01fff The same would happen if there was a fatal error between the

...s library is modeled after. So we would use: error_code permissions(const Twine &path, perms p); If the name is confusing (it says nothing about modification) I'm fine with modify_permissions or something similar. >   unique_file_sized() Instead of adding this I would much rather add resize_file and call it after unique_file. >   map_file_pages() >   unmap_file_pages() These are good. > I've implemented the unix side for all these, but have the windows side just stubbed out. > > I've also added a test case (unittests/Support/FileOutputBufferTest.cpp) which exerci...

I now have an implementation of FileOutputBuffer (OutputBuffer was already taken). The patch supports the functionality listed below and I've tested that it works for lld. -------------- next part -------------- A non-text attachment was scrubbed... Name: FileOutputBuffer.patch Type: application/octet-stream Size: 25308 bytes Desc: not available URL:

Hello everyone, 9.0.0-rc2 was tagged yesterday from the release_90 branch at r368683. In the Git monorepo it's available as the llvmorg-9.0.0-rc2 tag. Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc2 Binaries will be added as they become available. The tag went in roughly one week behind schedule (see "Upcoming Releases" at https://llvm.org), but

Hi everyone, 9.0.0-rc1 was just tagged from the release_90 branch at r367217 (tagged as llvmorg-9.0.0-rc1 in the Git monorepo). Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc1 Binaries will be added as they become available. Please file bug reports for any issues you find as blockers of https://llvm.org/PR42474 Release testers: please start your engines, run the

Hello everyone, 9.0.0-rc5 was just tagged from the release_90 branch at r371837. In the Git monorepo, it's tagged as llvmorg-9.0.0-rc5. Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc5 Binaries will be added as they become available. There is only a single change from rc4 to rc5. Once more, the hope is that this will be the last release candidate and that we can

Hi, I've just tagged LLVM 9.0.1-rc3. Testers can begin testing and uploading binaries. This will be the last release candidate unless there is a major problem. I'm planning to tag the final release on Dec 19. -Tom

Hello again, 9.0.0-rc4 was just tagged from the release_90 branch at r371490. In the Git monorepo, it's tagged as llvmorg-9.0.0-rc4. Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc4 Binaries will be added as they become available. There are not a lot of changes from rc3 to rc4, and there are again no open release blockers, so I'm hoping this will be the last

Hi, I've tagged the LLVM 9.0.1-rc1 release. Testers can begin testing and upload binaries. I've also updated the test-release.sh script to pull from GitHub instead of SVN, if you run into any issues with the new script, let me know. -Tom

Hi, I've just tagged the 9.0.1-final release. Testers can begin uploading binaries. -Tom

Hello everyone, 9.0.0-rc3 was tagged today from the release_90 branch at r370450. In the Git monorepo, it's tagged as llvmorg-9.0.0-rc3. Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc3 Binaries will be added as they become available. There are currently no open release blockers, which means if nothing new comes up, the final release could ship soon and this is

Hi, I've tagged LLVM 9.0.1-rc2. Testers can begin testing and uploading binaries. If all goes well, this will be the last -rc. -Tom

Hello everyone, 9.0.0-rc6 was just tagged from the release_90 branch at r372100. In the Git monorepo, it's tagged as llvmorg-9.0.0-rc6. Source code and docs are available at https://prereleases.llvm.org/9.0.0/#rc6 This is the same as rc5 plus one very minor change (r371969) that still seemed good to pick up. I'm not allocating extra time for testing this one, expecting to tag