| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | restore h_errno ABI compatibility with ancient binaries•••prior to commit e68c51ac46a9f273927aef8dcebc89912ab19ece, h_errno was
actually an external data object not a macro. bring back the symbol,
and use it as the storage for the main thread's h_errno.
technically this still doesn't provide full compatibility if the
application was multithreaded, but at the time there were no res_*
functions (and they did not set h_errno anyway), so any use of h_errno
would have been via thread-unsafe functions. thus a solution that just
fixes single-threaded applications seems acceptable.
| Rich Felker | 2020-08-30 | 1 | -0/+4 |
| * | make h_errno thread-local•••the framework to do this always existed but it was deemed unnecessary
because the only [ex-]standard functions using h_errno were not
thread-safe anyway. however, some of the nonstandard res_* functions
are also supposed to set h_errno to indicate the cause of error, and
were unable to do so because it was not thread-safe. this change is a
prerequisite for fixing them.
| Rich Felker | 2020-08-24 | 1 | -4/+2 |
| * | fix misplaced semicolon in preprocessor directive (#undef h_errno) | Rich Felker | 2012-05-16 | 1 | -1/+1 |
| * | use __h_errno_location for h_errno•••we do not bother making h_errno thread-local since the only interfaces
that use it are inherently non-thread-safe. but still use the
potentially-thread-local ABI to access it just to avoid lock-in.
| Rich Felker | 2012-05-12 | 1 | -0/+8 |
| * | initial check-in, version 0.5.0 | Rich Felker | 2011-02-12 | 1 | -0/+1 |
