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Re: [RFC PATCH] Don't install libio.h or _G_config.h.

On 08/28/2017 04:06 PM, Zack Weinberg wrote:
It passes the testsuite on x86_64-linux, but it needs a great deal of
additional testing; in particular I'm almost certain I broke the
support for old-format (GLIBC_2.0) struct _IO_FILE, which is
configured out on this target.  Testing this properly would require
someone to get their hands on_really_  old binaries, compiled against
glibc 2.0, possibly statically-linked-but-using-NSS.  Unfortunately, cannot be expected to be binary identical.

elf/tst-audit1 and others break on i386. Usually, this is due to dlmopen/stdio sync issues, but in this case, it might be caused by a _IO_stdin_used mismatch. For some reason, I don't have debuginfo for the inner libc, so this is rather difficult to diagnose. I won't be able to fix this before the freeze, I'm afraid.

I think we should unify the libio locking first across glibc (aka get rid of _IO_MTSAFE_IO). This will reduce the size of the patch a bit.


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