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2019-10-28add time64 symbol name redirects to public headers, under arch controlRich Felker1-0/+6
a _REDIR_TIME64 macro is introduced, which the arch's alltypes.h is expected to define, to control redirection of symbol names for interfaces that involve time_t and derived types. this ensures that object files will only be linked to libc interfaces matching the ABI whose headers they were compiled against. along with time32 compat shims, which will be introduced separately, the redirection also makes it possible for a single libc (static or shared) to be used with object files produced with either the old (32-bit time_t) headers or the new ones after 64-bit time_t switchover takes place. mixing of such object files (or shared libraries) in the same program will also be possible, but must be done with care; ABI between libc and a consumer of the libc interfaces is guaranteed to match by the the symbol name redirection, but pairwise ABI between consumers of libc that define interfaces between each other in terms of time_t is not guaranteed to match. this change adds a dependency on an additional "GNU C" feature to the public headers for existing 32-bit archs, which is generally undesirable; however, the feature is one which glibc has depended on for a long time, and thus which any viable alternative compiler is going to need to provide. 64-bit archs are not affected, nor will future 32-bit archs be, regardless of whether they are "new" on the kernel side (e.g. riscv32) or just newly-added (e.g. a new sparc or xtensa port). the same applies to newly-added ABIs for existing machine-level archs.
2016-07-03make brace placement in public header struct definitions consistentRich Felker1-2/+1
placing the opening brace on the same line as the struct keyword/tag is the style I prefer and seems to be the prevailing practice in more recent additions. these changes were generated by the command: find include/ arch/*/bits -name '*.h' \ -exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} + and subsequently checked by hand to ensure that the regex did not pick up any false positives.
2015-03-04fix preprocessor error introduced in poll.h in last commitRich Felker1-1/+1
2015-03-04fix POLLWRNORM and POLLWRBAND on mipsTrutz Behn1-0/+6
these macros have the same distinct definition on blackfin, frv, m68k, mips, sparc and xtensa kernels. POLLMSG and POLLRDHUP additionally differ on sparc.
2012-12-26add linux extension POLLRDHUP to poll.hRich Felker1-0/+1
the POLL prefix is in the reserved namespace for poll.h, so no feature test macro checks are needed.
2012-09-09fix typo introduced in poll.hRich Felker1-1/+1
2012-09-09add linux ppoll syscall wrapperRich Felker1-0/+10
2012-09-01fix wrong type for poll.h nfds_tRich Felker1-1/+1
this should not break anything since the type should never be used except as the argument type for poll.
2011-02-12initial check-in, version 0.5.0v0.5.0Rich Felker1-0/+35