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* fix eventfd and inotify nonblock/cloexec flags to match arch valuesRich Felker2012-11-262-4/+6
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* fix missing limits when only _BSD_SOURCE is definedRich Felker2012-11-261-1/+1
| | | | | | | the missing check did not affect the default profile, since it has both _XOPEN_SOURCE and _BSD_SOURCE defined, but it did break programs which explicitly define _BSD_SOURCE, causing it to be the only feature test macro present.
* fixup mcontext stuff to expost gregset_t/fpregset_t as appropriateRich Felker2012-11-258-12/+35
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* make sys/procfs.h mostly work on most archsRich Felker2012-11-256-26/+30
| | | | | | | | these structures are purely for use by trace/debug tools and tools working with core files. the definition of fpregset_t, which was previously here, has been removed because it was wrong; fpregset_t should be the type used in mcontext_t, not the type used in ptrace/core stuff.
* remove microblaze user.h incorrectly copied from armRich Felker2012-11-251-40/+1
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* eliminate gdb complaints about missing linux-gate.so.1Rich Felker2012-11-251-1/+2
| | | | | | actually, the hard-coded name should be eliminated too, and replaced by a search for the soname in the headers, but that can be done separately later.
* begin sys/user.h and sys/reg.h fixes for portsRich Felker2012-11-234-98/+78
| | | | | | aside from microblaze, these should be roughly correct for all archs now. some misc junk macros and typedefs are missing, which should probably be added for max compatibility with trace/debug tools.
* fix powerpc ucontext, again..Rich Felker2012-11-231-5/+0
| | | | | | | | it should now really match the kernel. some of the removed padding corresponded to the difference between user and kernel sigset_t. the space at the end was redundant with the uc_mcontext member and seems to have been added as a result of misunderstanding glibc's definition versus the kernel's.
* fix termios constants on mipsRich Felker2012-11-231-10/+21
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* sigcontext/mcontext cleanup for arch-specific bitsRich Felker2012-11-235-81/+94
| | | | | | | | | | | | | | | | | with these changes, the members/types of mcontext_t and related stuff should closely match the glibc definitions. unlike glibc, however, the definitions here avoid using typedefs as much as possible and work directly with the underlying types, to minimize namespace pollution from signal.h in the default (_BSD_SOURCE) profile. this is a first step in improving compatibility with applications which poke at context/register information -- mainly debuggers, trace utilities, etc. additional definitions in ucontext.h and other headers may be needed later. if feature test macros are used to request a conforming namespace, mcontext_t is replaced with an opaque structure of the equivalent size and alignment; conforming programs cannot examine its contents anyway.
* fix powerpc sigsetjmp asm to match the new jmp_buf size/offsetsRich Felker2012-11-231-2/+2
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* fix powerpc setjmp/longjmp to save/restore float regs; enlarge/align jmp_bufRich Felker2012-11-233-1/+37
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* add missing startfiles for powerpcRich Felker2012-11-232-0/+28
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* fix up leftover, incorrect NSIG definitions in arch-specific signal.hRich Felker2012-11-235-5/+0
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* remove stuff that doesn't belong in powerpc 32-bit sigcontextRich Felker2012-11-231-4/+0
| | | | these fields were wrongly copied from the kernel's ppc64 struct def
* more ppc signal.h typedef order fixesRich Felker2012-11-211-13/+13
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* fix misordered typedefs in ppc signal.hRich Felker2012-11-211-2/+2
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* ppc signal/NSIG related fix (warning fix, redefinition)Rich Felker2012-11-211-2/+1
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* add back NSIG, removed from powerpc in last commit, but for all archsRich Felker2012-11-217-0/+13
| | | | | | | | 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.
* make powerpc signal.h namespace-clean for posix/isocRich Felker2012-11-211-19/+32
| | | | | | | | | | also handle the non-GNUC case where alignment attribute is not available by simply omitting it. this will not cause problems except for inclusion of mcontex_t/ucontext_t in application-defined structures, since the natural alignment of the uc_mcontext member relative to the start of ucontext_t is already correct. and shame on whoever designed this for making it impossible to satisfy the ABI requirements without GNUC extensions.
* fix powerpc types to match abi, and some feature test issuesRich Felker2012-11-213-7/+8
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* fix invalid usage of mcontext_t in powerpc signal.hrofl0r2012-11-211-1/+1
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* powerpc: handle syscall error in clone.rofl0r2012-11-192-39/+24
| | | | sigsetjmp: store temporaries in jmp_buf rather than on stack.
* fix error in configure script using >/dev/null in noclobber modeRich Felker2012-11-181-1/+1
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* fix powerpc asm not to store data in volatile space below stack pointerRich Felker2012-11-182-12/+12
| | | | | | | | | | | it's essential to decrement the stack pointer before writing to new stack space, rather than afterwards. otherwise there is a race condition during which asynchronous code (signals) could clobber the data being stored. it may be possible to optimize the code further using stwu, but I wanted to avoid making any changes to the actual stack layout in this commit. further improvements can be made separately if desired.
* fix breakage from introducing bits header for sys/io.hRich Felker2012-11-187-6/+3
| | | | | | 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.
* add port io functions to sys/io.hRich Felker2012-11-185-4/+167
| | | | | | | based on proposal by Isaac Dunham. nonexistance of bits/io.h will cause inclusion of sys/io.h to produce an error on archs that are not supposed to have it. this is probably the desired behavior, but the error message may be a bit unusual.
* add missing const on powerpc FE_DFL_ENVRich Felker2012-11-181-1/+1
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* fenv support for ppc, untestedRich Felker2012-11-182-7/+148
| | | | based on code sent to the mailing list by nsz, with minor changes.
* fix feholdexcept -- it needs to clear exceptions after saving environmentRich Felker2012-11-181-0/+1
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* Merge remote-tracking branch 'nsz/math'Rich Felker2012-11-187-237/+171
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| * math: use float constants in exp10f.cSzabolcs Nagy2012-11-181-1/+1
| | | | | | | | use the 'f' suffix when a float constant is not representable
| * math: expl.c cleanupSzabolcs Nagy2012-11-181-24/+19
| | | | | | | | raise overflow and underflow when necessary, fix various comments.
| * math: expf.c cleanupSzabolcs Nagy2012-11-182-63/+55
| | | | | | | | | | | | similar to exp.c cleanup: use scalbnf, don't return excess precision, drop some optimizatoins. exp.c was changed to be more consistent with expf.c code.
| * math: cleanup exp2.c exp2f.c and exp2l.cSzabolcs Nagy2012-11-173-86/+56
| | | | | | | | | | | | * old code relied on sign extension on right shift * exp2l ld64 wrapper was wrong * use scalbn instead of bithacks
| * math: exp.c clean upSzabolcs Nagy2012-11-171-72/+49
| | | | | | | | | | | | | | overflow and underflow was incorrect when the result was not stored. an optimization for the 0.5*ln2 < |x| < 1.5*ln2 domain was removed. did various cleanups around static constants and made the comments consistent with the code.
* | fcntl.h: O_SEARCH was missing for powerpcrofl0r2012-11-186-24/+13
| | | | | | | | | | | | 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.
* | ppc socket.h: add forgotten cmsghdrrofl0r2012-11-181-0/+7
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* | fix typo in dynamic linker path file loading codeRich Felker2012-11-171-1/+1
| | | | | | | | | | | | fortunately the memory corruption could not hurt anything, but it prevented clearing the final newline and thus prevented the last path element from working.
* | add cleaned-up sys/mtio.hRich Felker2012-11-171-0/+188
| | | | | | | | | | this is mostly junk, but a few programs with tape-drive support unconditionally include it, and it might be useful.
* | add stub versions of some missing optional pthread interfacesRich Felker2012-11-176-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | priority inheritance is not yet supported, and priority protection probably will not be supported ever unless there's serious demand for it (it's a fairly heavy-weight feature). per-thread cpu clocks would be nice to have, but to my knowledge linux is still not capable of supporting them. glibc fakes them by using the _process_ cpu-time clock and subtracting the thread creation time, which gives seriously incorrect semantics (worse than not supporting the feature at all), so until there's a way to do it right, it will remain as a stub that always fails.
* | arg-skipping code for powerpc dynamic linkerRich Felker2012-11-171-0/+8
|/ | | | this allows using the dynamic linker as a command to load programs.
* dynamic linking support for powerpcRich Felker2012-11-162-25/+43
| | | | | | | | incomplete but at least partly working. requires all files to be compiled in the new "secure" plt model, not the old one that put plt code in the data segment. TLS is untested but may work. invoking the dynamic linker explicitly to load a program does not yet handle argv correctly.
* fix ppc stat structure definitionRich Felker2012-11-161-4/+3
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* fix powerpc termios.h and ioctl.hrofl0r2012-11-162-192/+232
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* disable SO_REUSEPORT in sys/socket.hRich Felker2012-11-152-2/+2
| | | | | | although a number is reserved for it, this option is not implemented on Linux and does not work. defining it causes some applications to use it, and subsequently break due to its failure.
* ppc wchar_t is long, not intRich Felker2012-11-151-1/+1
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* Merge remote-tracking branch 'nsz/math'Rich Felker2012-11-1587-372/+339
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| * fenv: return FE_TONEAREST in dummy fegetroundSzabolcs Nagy2012-11-141-1/+1
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| * math: ld80 invtrig cleanupsSzabolcs Nagy2012-11-148-110/+87
| | | | | | | | keeping only commonly used data in invtrigl