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* Fix typos.Yuri Chornoivan2013-10-122-2/+2
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* Move powerpc ports pieces to libc.Joseph Myers2013-10-0424-4153/+0
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* e500 port: getcontext / setcontext / swapcontext.Joseph Myers2013-10-044-0/+150
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* ARM: Allow building __longjmp as Thumb.Will Newton2013-10-041-2/+0
| | | | | | | | | | | | | Convert __longjmp code to allow building as Thumb. ports/ChangeLog.arm: 2013-10-04 Will Newton <will.newton@linaro.org> * sysdeps/arm/__longjmp.S (NO_THUMB): Remove define. (__longjmp): Use Thumb supported instructions. * sysdeps/unix/sysv/linux/arm/____longjmp_chk.S (NO_THUMB): Remove define.
* ARM: Add pointer encryption support.Will Newton2013-10-031-3/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for pointer encryption in glibc internal structures in C and assembler code. Pointer encryption is a glibc security feature described here: https://sourceware.org/glibc/wiki/PointerEncryption The ARM implementation uses global variables instead of thread pointer relative accesses to get the value of the pointer encryption guard because accessing the thread pointer can be very expensive on older ARM cores. ports/ChangeLog.arm: 2013-10-03 Will Newton <will.newton@linaro.org> * sysdeps/arm/__longjmp.S (__longjmp): Demangle fp, sp and lr when restoring register values. * sysdeps/arm/include/bits/setjmp.h (JMP_BUF_REGLIST): Remove sp and lr from list and replace fp with a4. * sysdeps/arm/jmpbuf-unwind.h (_jmpbuf_sp): New function. (_JMPBUF_UNWINDS_ADJ): Call _jmpbuf_sp. * sysdeps/arm/setjmp.S (__sigsetjmp): Mangle fp, sp and lr before storing register values. * sysdeps/arm/sysdep.h (LDST_GLOBAL): New macro. * sysdeps/unix/sysv/linux/arm/sysdep.h (PTR_MANGLE): New macro. (PTR_DEMANGLE): Likewise. (PTR_MANGLE2): Likewise. (PTR_DEMANGLE2): Likewise.
* alpha: Improve conditions under which PTR_MANGLE is definedRichard Henderson2013-10-011-31/+21
| | | | | After 0b1f8e35640f5b3f7af11764ade3ff060211c309, we now have a __pointer_chk_guard_local for the static libc.
* [AArch64] Fix BE access to errno.Andrew Pinski2013-09-301-1/+1
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* [AArch64] Adding sigcontextinfo.hMarcus Shawcroft2013-09-241-0/+35
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* MIPS: IEEE 754-2008 NaN encoding supportMaciej W. Rozycki2013-09-185-29/+316
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has been a long practice for software using IEEE 754 floating-point arithmetic run on MIPS processors to use an encoding of Not-a-Number (NaN) data different to one used by software run on other processors. And as of IEEE 754-2008 revision [1] this encoding does not follow one recommended in the standard, as specified in section 6.2.1, where it is stated that quiet NaNs should have the first bit (d1) of their significand set to 1 while signalling NaNs should have that bit set to 0, but MIPS software interprets the two bits in the opposite manner. As from revision 3.50 [2][3] the MIPS Architecture provides for processors that support the IEEE 754-2008 preferred NaN encoding format. As the two formats (further referred to as "legacy NaN" and "2008 NaN") are incompatible to each other, tools have to provide support for the two formats to help people avoid using incompatible binary modules. The change is comprised of two functional groups of features, both of which are required for correct support. 1. Dynamic linker support. To enforce the NaN encoding requirement in dynamic linking a new ELF file header flag has been defined. This flag is set for 2008-NaN shared modules and executables and clear for legacy-NaN ones. The dynamic linker silently ignores any incompatible modules it encounters in dependency processing. To avoid unnecessary processing of incompatible modules in the presence of a shared module cache, a set of new cache flags has been defined to mark 2008-NaN modules for the three ABIs supported. Changes to sysdeps/unix/sysv/linux/mips/readelflib.c have been made following an earlier code quality suggestion made here: http://sourceware.org/ml/libc-ports/2009-03/msg00036.html and are therefore a little bit more extensive than the minimum required. Finally a new name has been defined for the dynamic linker so that 2008-NaN and legacy-NaN binaries can coexist on a single system that supports dual-mode operation and that a legacy dynamic linker that does not support verifying the 2008-NaN ELF file header flag is not chosen to interpret a 2008-NaN binary by accident. 2. Floating environment support. IEEE 754-2008 features are controlled in the Floating-Point Control and Status (FCSR) register and updates are needed to floating environment support so that the 2008-NaN flag is set correctly and the kernel default, inferred from the 2008-NaN ELF file header flag at the time an executable is loaded, respected. As the NaN encoding format is a property of GCC code generation that is both a user-selected GCC configuration default and can be overridden with GCC options, code that needs to know what NaN encoding standard it has been configured for checks for the __mips_nan2008 macro that is defined internally by GCC whenever the 2008-NaN mode has been selected. This mode is determined at the glibc configuration time and therefore a few consistency checks have been added to catch cases where compilation flags have been overridden by the user. The 2008 NaN set of features relies on kernel support as the in-kernel floating-point emulator needs to be aware of the NaN encoding used even on hard-float processors and configure the FPU context according to the value of the 2008 NaN ELF file header flag of the executable being started. As at this time work on kernel support is still in progress and the relevant changes have not made their way yet to linux.org master repository. Therefore the minimum version supported has been artificially set to 10.0.0 so that 2008-NaN code is not accidentally run on a Linux kernel that does not suppport it. It is anticipated that the version is adjusted later on to the actual initial linux.org kernel version to support this feature. Legacy NaN encoding support is unaffected, older kernel versions remain supported. [1] "IEEE Standard for Floating-Point Arithmetic", IEEE Computer Society, IEEE Std 754-2008, 29 August 2008 [2] "MIPS Architecture For Programmers, Volume I-A: Introduction to the MIPS32 Architecture", MIPS Technologies, Inc., Document Number: MD00082, Revision 3.50, September 20, 2012 [3] "MIPS Architecture For Programmers, Volume I-A: Introduction to the MIPS64 Architecture", MIPS Technologies, Inc., Document Number: MD00083, Revision 3.50, September 20, 2012
* Add O_TMPFILE to <fcntl.h>Andreas Schwab2013-09-112-0/+2
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* Define MMAP2_PAGE_SHIFT to -1 for m68k.Joseph Myers2013-09-041-0/+5
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* hppa: add fanotify_markMike Frysinger2013-09-022-0/+4
| | | | | | | | | | | | | | | | | | | Another example of all the 64bit arches getting the definition via a common file, but the 32bit ones all adding it by themselves and hppa was missed. I'm not entirely sure about the usage of GLIBC_2.19 symbols here. We'd like to backport this so people can use it, but it means we'd be releasing a glibc-2.17/glibc-2.18 with a GLIBC_2.19 symbol in it. But maybe it won't be a big deal since you'd only get that 2.19 ref if you actually used the symbol ? There hasn't been a glibc release where hppa worked w/out a bunch of patches, so in reality there's only two distros that matter -- Gentoo and Debian. Reported-by: Jeroen Roovers <jer@gentoo.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix typos.Ondřej Bílka2013-08-304-5/+5
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* ARM: Fix clone code when built for Thumb.Will Newton2013-08-301-2/+2
| | | | | | | | | | | | | The mov lr, pc instruction will lose the Thumb bit from the return address so use blx lr instead. ports/ChangeLog.arm: 2013-08-30 Will Newton <will.newton@linaro.org> [BZ #15909] * sysdeps/unix/sysv/linux/arm/clone.S (__clone): Use blx instead of mov lr, pc.
* Use ELFOSABI_GNU instead of ELFOSABI_LINUX.Thomas Schwinge2013-08-292-5/+5
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* Fix typos.Ondřej Bílka2013-08-291-1/+1
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* Fix typos.Ondřej Bílka2013-08-211-1/+1
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* [AArch64] Provide symbol version for _mcount.Marcus Shawcroft2013-07-261-0/+1
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* m68k: use _dl_static_init to set GLR0(dl_pagesize)Andreas Schwab2013-07-214-2/+124
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* tile: add missing semicolon in <bits/ptrace.h>Chris Metcalf2013-07-191-1/+1
| | | | | | Change 521c6785e1fc94d added the enum but missed the semicolon. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
* [AArch64] Use _dl_static_init to set GLR0(dl_pagesize)Marcus Shawcroft2013-07-094-0/+128
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* tile: use _dl_static_init to set GLRO(gl_pagesize)Chris Metcalf2013-07-074-0/+128
| | | | | | A recently-added test (dlfcn/tststatic5) pointed out that tile was not properly initializing the variable pagesize in certain cases. This change just copies the existing code from MIPS.
* Sync sys/ptrace with Linux 3.10Andreas Jaeger2013-07-043-3/+76
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* Add GLRO(dl_hwcap2) for new AT_HWCAP2 auxv_t a_type.Ryan S. Arnold2013-06-281-1/+5
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* [AArch64] Simplify getcontext pstate initialization.Marcus Shawcroft2013-06-281-2/+1
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* _dl_static_init: Remove nested locking.Maciej W. Rozycki2013-06-272-14/+0
| | | | | | | This function is now called from dl_open_worker with the GL(dl_load_lock) lock held and no longer needs local protection. GL(dl_load_lock) also correctly protects _dl_lookup_symbol_x called here that relies on the caller to have serialized access to the data structures it uses.
* [BZ #15666] alpha: Add __sqrt*_finite definitionsRichard Henderson2013-06-241-0/+5
| | | | | With compatibility for ev6 and non-ev6 builds, as the non-ev6 did manage to get definitions emitted for the float and double functions.
* New API to set default thread attributesSiddhesh Poyarekar2013-06-1514-0/+54
| | | | | | | This patch introduces two new convenience functions to set the default thread attributes used for creating threads. This allows a programmer to set the default thread attributes just once in a process and then run pthread_create without additional attributes.
* MicroBlaze: negated errors in lowlevellock.hKirk Meyer2013-06-141-4/+4
| | | | | | | | | The macros in lowlevellock.h are returning positive errors, but the users of the macros expect negative. This causes e.g. sem_wait to sometimes return an error with errno set to -EWOULDBLOCK. Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com> Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
* Use (void) in no-arguments function definitions.Joseph Myers2013-06-082-2/+2
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* Fix executable mode.Ondrej Bilka2013-06-061-0/+0
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* Remove trailing whitespace in ports.Joseph Myers2013-06-0533-87/+87
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* [AArch64] Ensure getcontext() initializes PSTATE.Marcus Shawcroft2013-06-042-0/+5
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* Update bits/siginfo.h with Linux hwpoison SIGBUS changesEdjunior Barbosa Machado2013-05-224-5/+31
| | | | | | Adds new SIGBUS error codes for hardware poison signals, syncing with the current kernel headers (v3.9). It also adds si_trapno field for alpha.
* Fix MIPS n32 cancellation in static libc (bug 15506).Joseph Myers2013-05-213-16/+78
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* Add #include <stdint.h> for uint[32|64]_t usage (except installed headers).Ryan S. Arnold2013-05-162-0/+4
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* [AArch64] Fix out of range branch from ioctl() and clone()Marcus Shawcroft2013-05-122-4/+3
| | | | | | | | | | 2013-05-12 Marcus Shawcroft <marcus.shawcroft@linaro.org> * sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Do not call sycall_error directly with a confitional branch. * sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Do not call sycall_error directly with a confitional branch.
* MicroBlaze PortDavid Holsgrove2013-04-1855-0/+5254
| | | | | Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).Thomas Schwinge2013-04-0213-0/+59
| | | | It is based on draft TS 18661 and currently enabled as a GNU extension.
* Use LIBC_CONFIG_VAR for MIPS default-abi setting.Joseph Myers2013-03-213-5/+3
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* Use LIBC_CONFIG_VAR for ARM default-abi setting.Joseph Myers2013-03-201-3/+0
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* aarch64: Move rtld link to /libAndreas Schwab2013-03-192-0/+2
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* Avoid duplicate MAP_ANONYMOUS definition for MIPS GNU/Linux.Thomas Schwinge2013-03-151-1/+0
| | | | Follow-up to commit 664a9ce4ca40feabff781fff044c93a43ae15b59.
* aarch64: use lib64 as default lib and slib directoryAndreas Schwab2013-03-142-0/+25
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* ia64: fix set-but-unused warnings with syscallsMike Frysinger2013-03-121-2/+5
| | | | | | | | | | | These macros often set up a variable that later macros sometimes do not use. Add unused attribute to avoid that. Similarly, the ia64 code tends to check the err field rather than the val (which is opposite of most arches) leading to the same kind of warning. Replace this with a dummy reference. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* ia64: fix strict aliasing warnings with func descriptorsMike Frysinger2013-03-121-10/+6
| | | | | | | | | | | Function pointers on ia64 are like parisc -- they're plabels. While the parisc port enjoys a gcc builtin for extracting the address here, ia64 has no such luck. Casting & dereferencing in one go triggers a strict aliasing warning. Use a union to fix that. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Add comments about ARM configure -fno-unwind-tables handling.Joseph Myers2013-03-112-0/+2
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* AM33: Use <bits/mman.h>Andreas Jaeger2013-03-111-61/+2
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* Use <bits/mman.h> on ia64Andreas Jaeger2013-03-111-74/+2
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* Remove extra pthread_atfork compat symbolsAndreas Schwab2013-03-116-6/+0
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