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* add back NSIG, removed from powerpc in last commit, but for all archsRich Felker2012-11-211-0/+2
| | | | | | | | unlike the previous definition, NSIG/_NSIG is supposed to be one more than the highest signal number. adding this will allow simplifying libc-internal code that makes signal-related syscalls, which can be done as a later step. some apps might use it too; while this usage is questionable, it's at least not insane.
* fix breakage from introducing bits header for sys/io.hRich Felker2012-11-181-0/+0
| | | | | | apparently some other archs have sys/io.h and should not break just because they don't have the x86 port io functions. provide a blank bits/io.h everywhere for now.
* fcntl.h: O_SEARCH was missing for powerpcrofl0r2012-11-181-3/+0
| | | | | | put some macros that do not differ between architectures in the main header and remove from bits. restructure mips header so it has the same structure as the others.
* fix struct stat size/padding on microblazeRich Felker2012-10-191-1/+2
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* better support for reverse-endian variants of arm/mips/microblazeRich Felker2012-10-181-0/+4
| | | | these macros are supported by more compilers
* microblaze portRich Felker2012-09-2925-0/+1721
based on initial work by rdp, with heavy modifications. some features including threads are untested because qemu app-level emulation seems to be broken and I do not have a proper system image for testing.