Age | Commit message (Collapse) | Author | Lines |
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in commit 22daaea39f1cc5f7391f0a5cd84576ffb58c2860, the
__dlsym_redir_time64 function providing the backend for __dlsym_time64
was defined only in the dynamic linker, and thus was undefined when
static linking a program referencing dlsym. use the same stub_dlsym
definition that provides __dlsym (the non-redirecting backend) for
static linked programs to provide it, conditional on _REDIR_TIME64.
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libc.h was intended to be a header for access to global libc state and
related interfaces, but ended up included all over the place because
it was the way to get the weak_alias macro. most of the inclusions
removed here are places where weak_alias was needed. a few were
recently introduced for hidden. some go all the way back to when
libc.h defined CANCELPT_BEGIN and _END, and all (wrongly implemented)
cancellation points had to include it.
remaining spurious users are mostly callers of the LOCK/UNLOCK macros
and files that use the LFS64 macro to define the awful *64 aliases.
in a few places, new inclusion of libc.h is added because several
internal headers no longer implicitly include libc.h.
declarations for __lockfile and __unlockfile are moved from libc.h to
stdio_impl.h so that the latter does not need libc.h. putting them in
libc.h made no sense at all, since the macros in stdio_impl.h are
needed to use them correctly anyway.
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this cleans up what had become widespread direct inline use of "GNU C"
style attributes directly in the source, and lowers the barrier to
increased use of hidden visibility, which will be useful to recovering
some of the efficiency lost when the protected visibility hack was
dropped in commit dc2f368e565c37728b0d620380b849c3a1ddd78f, especially
on archs where the PLT ABI is costly.
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the function name is still __-prefixed because it requires an asm
wrapper to pass the caller's address in order for RTLD_NEXT to work.
since this was the last function in dynlink.c still used for static
linking, now the whole file is conditional on SHARED being defined.
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