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Codepaths streamlined. Improved performance for nonthreaded apps
when linked with a thread-enabled libc.
Minor iconv bug and some locale/thread related startup issues fixed.
These showed up in getting a gcj-compiled java helloworld app running.
Removed some old extension functions... _stdio_fdout and _stdio_fsfopen.
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Added a list of popen()'d to store pids and use waitpid() in pclose().
Loop on waitpid() failure due to EINTR as required.
Close parent's popen()'d FILEs in the {v}fork()'d child.
Fix failure exit code for failed execve().
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instead of -1 as expected.
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iff we do not have vfork available, which is simpler and more reasonable.
-Erik
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There is a minor bug in the implementation of popen(). In the case
where the file descriptor returned from its call to pipe() is the same
as the file descriptor that it is meant to be (where the dup2() branch
is not taken), the end of the pipe is still closed by close(reading)
even though it shouldn't be.
Thanks Ted!
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-Erik
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This required we use _LIBC instead of __LIBC__ to be consistent with glibc.
This had some sideffects in sys/syscalls.h. While fixing things, I made
everything use __set_errno() for (eventual) thread support.
-Erik
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calling vfork.
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rework include/stdio.h, and fix up the resultant damage.
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