libcap-2.46

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

Release notes for 2.46 2020-12-12

The bulk of this release concerns fixes and improvements to lib[psx]:

• Allow a dying thread to participate in the psx-fixup mechanism - bug

• Golang had some issues with lib[psx]using SIGRTMAX for the psx-fixup

• lib[psx] now interrupts SIGSYS (probably still needs some work to support the signal pass-through)

• The psx Go package, because it contained a sub-directory with only a .h header in it, did not work with Golang module vendoring

• We've collapsed down the whole libcap/psx directory to be flat now

• The 6-argument psx_syscall6() and psx.Syscall6() now work

• Refactored the way Go package"cap" decides whether or not to use syscall.AllThreadsSyscall*() or the psx-fixup mechanism into the "psx" package. This way, all that build complexity resides in the "psx" package, which should also make that package more useful for other applications.

• Compile more things CGO_ENABLED=0 where there is support.

• Discovered a Golang bug so can't do it with psx-signals for this libcap release.

• Cleanup of build tree:

• Deleted the POSIX semantics validation tests for Golang. I've long since migrated them to the golang source tree.

• Added some .gitignore entries for build targets.

• Made libcap/kdebug make target work again and run progs/quicktest.sh to completion.

• Started to develop goapps/gowns a program that can work with capabilities and Containers. Not too much functionality yet.

[Bruce Dubbs]

Fixed at revision 12069.