"Dave Korn" <[EMAIL PROTECTED]> writes: > > On the other hand, the setting of environ is very dubious and is > > likely to break on real systems. The code should be changed to call > > execve instead. Unfortunately there is no standard execvpe function. > > Fortunately gcc never uses the variant which sets environ. Offhand > > I'm not sure what does. > > Perhaps we could work around this case by setting environ in the parent > before the vfork call and restoring it afterward, but we'd need kind of > serialisation there, and I don't know how to do a critical section using > pthreads/posix.
The setting of environ came in here: http://gcc.gnu.org/ml/gcc-patches/2006-05/msg00377.html Mark, setting the global environ variable won't work correctly on Unix when using vfork. Your e-mail refers to the prelinker. The prelinker sources that I have don't use the pex routines. Do your prelinker sources require setting the environment when using the PEX_SEARCH flag while setting the environment? If not, I think the simple approach is to disallow that flag for pex_run_in_environment, to not set environ, and to use execve instead. Ian
