when a on-disk block/inode allocation triggers allocating a new
quota entry, the new quota entry is not in the quota2 header block,
and the allocation will later be denied, the changes to the quota block would
not be flushed to disk, leading to list corruption (detected by fsck).
the TLS pointer, therefore wrecking the pthread environement.
Some ports had _UC_TLSBASE flag or equivalent (_UC_UNIQUE on alpha)
that controlled whether setcontext() would change the TLS pointer.
This change let libpthread override setcontext() with its own version
that unsets _UC_TLSBASE, enabling safe usage of setcontext() with
-lpthread.
We also have the following required changes here:
- rename alpha's _UC_UNIQUE into _UC_TLSBASE
- add _UC_TLSBASE definition in header file for all ports
(powerpc, sh3, sparc and sparc64 lack the implementation for now)
- introduce a libc stub that can be overriden for setcontext()
- modify MD libcs swapcontext() implementations so that they use the
setcontext() libc stub instead of doing a plain system call.
While we are there:
- document various MD _UC_* flags in header file
- add libc and libpthread tests for swapcontext() behavior
(hopefully helpful to spot MD problems introduced with this change)
Future work:
- Deciding whether kernel support or _UC_TLSBASE should be added for
powerpc, sh3, sparc and sparc64 is left to portmasters
sparc64
Approved by core@
causes these tests to sometimes deadlock. Since they run really fast
when they are successful, it doesn't do any good to wait for the
default 5-minute timeout. So explicitly set timeout for these tests
to just 30 seconds.
The main goal of this change is to simplify the further addition of test
cases for the share/mk infrastructure by adding a few placeholder test
programs to the tests tree.
To not leave these test programs empty, I have added a bunch of extremely
simple test cases to them.
This option prepends the string given in prefix to every target
filename. This is useful for programs that have source files in
multiple subdirectories and a single Makefile that references all of
them explicitly (without using the VPATH functionality because there
can be files with the same name in each subdirectory).
- Merge h_regex_att (att.c) and t_regex_att.sh into a single C test program.
The former was really a test program, and the latter just a very strange
driver for it.
- Stop using awk to generate the shell test programs. This is unnecessary
and confusing. Instead, change t_regex.sh to generate the test case
functions on the fly with eval (as done in many other places).
pgoyette