musl: update to latest git version

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46481

1 files changed, 0 insertions, 2523 deletions

diff --git a/toolchain/musl/patches/001-git-2015-06-25.patch b/toolchain/musl/patches/001-git-2015-06-25.patch
deleted file mode 100644
index abb4a9d..0000000
--- a/toolchain/musl/patches/001-git-2015-06-25.patch
+++ /dev/null
@@ -1,2523 +0,0 @@
-commit 6ba5517a460c6c438f64d69464fdfc3269a4c91a
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Thu Jun 25 22:22:00 2015 +0000
-
-    fix local-dynamic model TLS on mips and powerpc
-    
-    the TLS ABI spec for mips, powerpc, and some other (presently
-    unsupported) RISC archs has the return value of __tls_get_addr offset
-    by +0x8000 and the result of DTPOFF relocations offset by -0x8000. I
-    had previously assumed this part of the ABI was actually just an
-    implementation detail, since the adjustments cancel out. however, when
-    the local dynamic model is used for accessing TLS that's known to be
-    in the same DSO, either of the following may happen:
-    
-    1. the -0x8000 offset may already be applied to the argument structure
-    passed to __tls_get_addr at ld time, without any opportunity for
-    runtime relocations.
-    
-    2. __tls_get_addr may be used with a zero offset argument to obtain a
-    base address for the module's TLS, to which the caller then applies
-    immediate offsets for individual objects accessed using the local
-    dynamic model. since the immediate offsets have the -0x8000 adjustment
-    applied to them, the base address they use needs to include the
-    +0x8000 offset.
-    
-    it would be possible, but more complex, to store the pointers in the
-    dtv[] array with the +0x8000 offset pre-applied, to avoid the runtime
-    cost of adding 0x8000 on each call to __tls_get_addr. this change
-    could be made later if measurements show that it would help.
-
-commit ce337daa00e42d4f2d9a4d9ae0ed51b20249d924
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 23 04:03:42 2015 +0000
-
-    make dynamic linker work around MAP_FAILED mmap failure on nommu kernels
-    
-    previously, loading of additional libraries beyond libc/ldso did not
-    work on nommu kernels, nor did loading programs via invocation of the
-    dynamic linker as a command.
-
-commit a59341420fdedb288d9ff80e73609ae44e9cf258
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 23 00:12:25 2015 +0000
-
-    reimplement strverscmp to fix corner cases
-    
-    this interface is non-standardized and is a GNU invention, and as
-    such, our implementation should match the behavior of the GNU
-    function. one peculiarity the old implementation got wrong was the
-    handling of all-zero digit sequences: they are supposed to compare
-    greater than digit sequences of which they are a proper prefix, as in
-    009 < 00.
-    
-    in addition, high bytes were treated with char signedness rather than
-    as unsigned. this was wrong regardless of what the GNU function does
-    since the resulting order relation varied by arch.
-    
-    the new strverscmp implementation makes explicit the cases where the
-    order differs from what strcmp would produce, of which there are only
-    two.
-
-commit 153e952e1a688859d7095345b17e6c1df74a295c
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Mon Jun 22 20:33:28 2015 +0000
-
-    fix regression/typo that disabled __simple_malloc when calloc is used
-    
-    commit ba819787ee93ceae94efd274f7849e317c1bff58 introduced this
-    regression. since the __malloc0 weak alias was not properly provided
-    by __simple_malloc, use of calloc forced the full malloc to be linked.
-
-commit ba819787ee93ceae94efd274f7849e317c1bff58
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Mon Jun 22 18:50:09 2015 +0000
-
-    fix calloc when __simple_malloc implementation is used
-    
-    previously, calloc's implementation encoded assumptions about the
-    implementation of malloc, accessing a size_t word just prior to the
-    allocated memory to determine if it was obtained by mmap to optimize
-    out the zero-filling. when __simple_malloc is used (static linking a
-    program with no realloc/free), it doesn't matter if the result of this
-    check is wrong, since all allocations are zero-initialized anyway. but
-    the access could be invalid if it crosses a page boundary or if the
-    pointer is not sufficiently aligned, which can happen for very small
-    allocations.
-    
-    this patch fixes the issue by moving the zero-fill logic into malloc.c
-    with the full malloc, as a new function named __malloc0, which is
-    provided by a weak alias to __simple_malloc (which always gives
-    zero-filled memory) when the full malloc is not in use.
-
-commit 55d061f031085f24d138664c897791aebe9a2fab
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 20 03:01:07 2015 +0000
-
-    provide __stack_chk_fail_local in libc.a
-    
-    this symbol is needed only on archs where the PLT call ABI is klunky,
-    and only for position-independent code compiled with stack protector.
-    thus references usually only appear in shared libraries or PIE
-    executables, but they can also appear when linking statically if some
-    of the object files being linked were built as PIC/PIE.
-    
-    normally libssp_nonshared.a from the compiler toolchain should provide
-    __stack_chk_fail_local, but reportedly it appears prior to -lc in the
-    link order, thus failing to satisfy references from libc itself (which
-    arise only if libc.a was built as PIC/PIE with stack protector
-    enabled).
-
-commit ce3688eca920aa77549323f84e21f33522397115
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 20 02:54:30 2015 +0000
-
-    work around mips detached thread exit breakage due to kernel regression
-    
-    linux kernel commit 46e12c07b3b9603c60fc1d421ff18618241cb081 caused
-    the mips syscall mechanism to fail with EFAULT when the userspace
-    stack pointer is invalid, breaking __unmapself used for detached
-    thread exit. the workaround is to set $sp to a known-valid, readable
-    address, and the simplest one to obtain is the address of the current
-    function, which is available (per o32 calling convention) in $25.
-
-commit 75eceb3ae824d54e865686c0c538551aeebf3372
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Wed Jun 17 17:21:46 2015 +0000
-
-    ignore ENOSYS error from mprotect in pthread_create and dynamic linker
-    
-    this error simply indicated a system without memory protection (NOMMU)
-    and should not cause failure in the caller.
-
-commit 10d0268ccfab9152250eeeed3952ce3fed44131a
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 15:25:02 2015 +0000
-
-    switch to using trap number 31 for syscalls on sh
-    
-    nominally the low bits of the trap number on sh are the number of
-    syscall arguments, but they have never been used by the kernel, and
-    some code making syscalls does not even know the number of arguments
-    and needs to pass an arbitrary high number anyway.
-    
-    sh3/sh4 traditionally used the trap range 16-31 for syscalls, but part
-    of this range overlapped with hardware exceptions/interrupts on sh2
-    hardware, so an incompatible range 32-47 was chosen for sh2.
-    
-    using trap number 31 everywhere, since it's in the existing sh3/sh4
-    range and does not conflict with sh2 hardware, is a proposed
-    unification of the kernel syscall convention that will allow binaries
-    to be shared between sh2 and sh3/sh4. if this is not accepted into the
-    kernel, we can refit the sh2 target with runtime selection mechanisms
-    for the trap number, but doing so would be invasive and would entail
-    non-trivial overhead.
-
-commit 3366a99b17847b58f2d8cc52cbb5d65deb824f8a
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 14:55:06 2015 +0000
-
-    switch sh port's __unmapself to generic version when running on sh2/nommu
-    
-    due to the way the interrupt and syscall trap mechanism works,
-    userspace on sh2 must never set the stack pointer to an invalid value.
-    thus, the approach used on most archs, where __unmapself executes with
-    no stack for the interval between SYS_munmap and SYS_exit, is not
-    viable on sh2.
-    
-    in order not to pessimize sh3/sh4, the sh asm version of __unmapself
-    is not removed. instead it's renamed and redirected through code that
-    calls either the generic (safe) __unmapself or the sh3/sh4 asm,
-    depending on compile-time and run-time conditions.
-
-commit f9d84554bae0fa17c9a1d724549c4408022228a5
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 14:28:30 2015 +0000
-
-    add support for sh2 interrupt-masking-based atomics to sh port
-    
-    the sh2 target is being considered an ISA subset of sh3/sh4, in the
-    sense that binaries built for sh2 are intended to be usable on later
-    cpu models/kernels with mmu support. so rather than hard-coding
-    sh2-specific atomics, the runtime atomic selection mechanisms that was
-    already in place has been extended to add sh2 atomics.
-    
-    at this time, the sh2 atomics are not SMP-compatible; since the ISA
-    lacks actual atomic operations, the new code instead masks interrupts
-    for the duration of the atomic operation, producing an atomic result
-    on single-core. this is only possible because the kernel/hardware does
-    not impose protections against userspace doing so. additional changes
-    will be needed to support future SMP systems.
-    
-    care has been taken to avoid producing significant additional code
-    size in the case where it's known at compile-time that the target is
-    not sh2 and does not need sh2-specific code.
-
-commit 1b0cdc8700d29ef018bf226d74b2b58b23bce91c
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 07:11:19 2015 +0000
-
-    refactor stdio open file list handling, move it out of global libc struct
-    
-    functions which open in-memory FILE stream variants all shared a tail
-    with __fdopen, adding the FILE structure to stdio's open file list.
-    replacing this common tail with a function call reduces code size and
-    duplication of logic. the list is also partially encapsulated now.
-    
-    function signatures were chosen to facilitate tail call optimization
-    and reduce the need for additional accessor functions.
-    
-    with these changes, static linked programs that do not use stdio no
-    longer have an open file list at all.
-
-commit f22a9edaf8a6f2ca1d314d18b3785558279a5c03
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 06:18:00 2015 +0000
-
-    byte-based C locale, phase 3: make MB_CUR_MAX variable to activate code
-    
-    this patch activates the new byte-based C locale (high bytes treated
-    as abstract code unit "characters" rather than decoded as multibyte
-    characters) by making the value of MB_CUR_MAX depend on the active
-    locale. for the C locale, the LC_CTYPE category pointer is null,
-    yielding a value of 1. all other locales yield a value of 4.
-
-commit 16f18d036d9a7bf590ee6eb86785c0a9658220b6
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 05:35:31 2015 +0000
-
-    byte-based C locale, phase 2: stdio and iconv (multibyte callers)
-    
-    this patch adjusts libc components which use the multibyte functions
-    internally, and which depend on them operating in a particular
-    encoding, to make the appropriate locale changes before calling them
-    and restore the calling thread's locale afterwards. activating the
-    byte-based C locale without these changes would cause regressions in
-    stdio and iconv.
-    
-    in the case of iconv, the current implementation was simply using the
-    multibyte functions as UTF-8 conversions. setting a multibyte UTF-8
-    locale for the duration of the iconv operation allows the code to
-    continue working.
-    
-    in the case of stdio, POSIX requires that FILE streams have an
-    encoding rule bound at the time of setting wide orientation. as long
-    as all locales, including the C locale, used the same encoding,
-    treating high bytes as UTF-8, there was no need to store an encoding
-    rule as part of the stream's state.
-    
-    a new locale field in the FILE structure points to the locale that
-    should be made active during fgetwc/fputwc/ungetwc on the stream. it
-    cannot point to the locale active at the time the stream becomes
-    oriented, because this locale could be mutable (the global locale) or
-    could be destroyed (locale_t objects produced by newlocale) before the
-    stream is closed. instead, a pointer to the static C or C.UTF-8 locale
-    object added in commit commit aeeac9ca5490d7d90fe061ab72da446c01ddf746
-    is used. this is valid since categories other than LC_CTYPE will not
-    affect these functions.
-
-commit 1507ebf837334e9e07cfab1ca1c2e88449069a80
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 04:44:17 2015 +0000
-
-    byte-based C locale, phase 1: multibyte character handling functions
-    
-    this patch makes the functions which work directly on multibyte
-    characters treat the high bytes as individual abstract code units
-    rather than as multibyte sequences when MB_CUR_MAX is 1. since
-    MB_CUR_MAX is presently defined as a constant 4, all of the new code
-    added is dead code, and optimizing compilers' code generation should
-    not be affected at all. a future commit will activate the new code.
-    
-    as abstract code units, bytes 0x80 to 0xff are represented by wchar_t
-    values 0xdf80 to 0xdfff, at the end of the surrogates range. this
-    ensures that they will never be misinterpreted as Unicode characters,
-    and that all wctype functions return false for these "characters"
-    without needing locale-specific logic. a high range outside of Unicode
-    such as 0x7fffff80 to 0x7fffffff was also considered, but since C11's
-    char16_t also needs to be able to represent conversions of these
-    bytes, the surrogate range was the natural choice.
-
-commit 38e2f727237230300fea6aff68802db04625fd23
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 16 04:21:38 2015 +0000
-
-    fix btowc corner case
-    
-    btowc is required to interpret its argument by conversion to unsigned
-    char, unless the argument is equal to EOF. since the conversion to
-    produces a non-character value anyway, we can just unconditionally
-    convert, for now.
-
-commit ee59c296d56bf26f49f354d6eb32b4b6d4190188
-Author: Szabolcs Nagy <nsz@port70.net>
-Date:   Wed Jun 3 10:32:14 2015 +0100
-
-    arm: add vdso support
-    
-    vdso will be available on arm in linux v4.2, the user-space code
-    for it is in kernel commit 8512287a8165592466cb9cb347ba94892e9c56a5
-
-commit e3bc22f1eff87b8f029a6ab31f1a269d69e4b053
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sun Jun 14 01:59:02 2015 +0000
-
-    refactor malloc's expand_heap to share with __simple_malloc
-    
-    this extends the brk/stack collision protection added to full malloc
-    in commit 276904c2f6bde3a31a24ebfa201482601d18b4f9 to also protect the
-    __simple_malloc function used in static-linked programs that don't
-    reference the free function.
-    
-    it also extends support for using mmap when brk fails, which full
-    malloc got in commit 5446303328adf4b4e36d9fba21848e6feb55fab4, to
-    __simple_malloc.
-    
-    since __simple_malloc may expand the heap by arbitrarily large
-    increments, the stack collision detection is enhanced to detect
-    interval overlap rather than just proximity of a single address to the
-    stack. code size is increased a bit, but this is partly offset by the
-    sharing of code between the two malloc implementations, which due to
-    linking semantics, both get linked in a program that needs the full
-    malloc with realloc/free support.
-
-commit 4ef9b828c1f39553a69e0635ac91f0fcadd6e8c6
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 13 20:53:02 2015 +0000
-
-    remove cancellation points in stdio
-    
-    commit 58165923890865a6ac042fafce13f440ee986fd9 added these optional
-    cancellation points on the basis that cancellable stdio could be
-    useful, to unblock threads stuck on stdio operations that will never
-    complete. however, the only way to ensure that cancellation can
-    achieve this is to violate the rules for side effects when
-    cancellation is acted upon, discarding knowledge of any partial data
-    transfer already completed. our implementation exhibited this behavior
-    and was thus non-conforming.
-    
-    in addition to improving correctness, removing these cancellation
-    points moderately reduces code size, and should significantly improve
-    performance on i386, where sysenter/syscall instructions can be used
-    instead of "int $128" for non-cancellable syscalls.
-
-commit 536c6d5a4205e2a3f161f2983ce1e0ac3082187d
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 13 05:17:16 2015 +0000
-
-    fix idiom for setting stdio stream orientation to wide
-    
-    the old idiom, f->mode |= f->mode+1, was adapted from the idiom for
-    setting byte orientation, f->mode |= f->mode-1, but the adaptation was
-    incorrect. unless the stream was alreasdy set byte-oriented, this code
-    incremented f->mode each time it was executed, which would eventually
-    lead to overflow. it could be fixed by changing it to f->mode |= 1,
-    but upcoming changes will require slightly more work at the time of
-    wide orientation, so it makes sense to just call fwide. as an
-    optimization in the single-character functions, fwide is only called
-    if the stream is not already wide-oriented.
-
-commit f8f565df467c13248104223f99abf7f37cef7584
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 13 04:42:38 2015 +0000
-
-    add printing of null %s arguments as "(null)" in wide printf
-    
-    this is undefined, but supported in our implementation of the normal
-    printf, so for consistency the wide variant should support it too.
-
-commit f9e25d813860d53cd1e9b6145cc63375d2fe2529
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 13 04:37:27 2015 +0000
-
-    add %m support to wide printf
-
-commit ec634aad91f57479ef17525e33ed446c780a61f4
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Thu Jun 11 05:01:04 2015 +0000
-
-    add sh asm for vfork
-
-commit c30cbcb0a646b1f13a22c645616dce624465b883
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Wed Jun 10 02:27:40 2015 +0000
-
-    implement arch-generic version of __unmapself
-    
-    this can be used to put off writing an asm version of __unmapself for
-    new archs, or as a permanent solution on archs where it's not
-    practical or even possible to run momentarily with no stack.
-    
-    the concept here is simple: the caller takes a lock on a global shared
-    stack and uses it to make the munmap and exit syscalls. the only trick
-    is unlocking, which must be done after the thread exits, and this is
-    achieved by using the set_tid_address syscall to have the kernel zero
-    and futex-wake the lock word as part of the exit syscall.
-
-commit 276904c2f6bde3a31a24ebfa201482601d18b4f9
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 9 20:30:35 2015 +0000
-
-    in malloc, refuse to use brk if it grows into stack
-    
-    the linux/nommu fdpic ELF loader sets up the brk range to overlap
-    entirely with the main thread's stack (but growing from opposite
-    ends), so that the resulting failure mode for malloc is not to return
-    a null pointer but to start returning pointers to memory that overlaps
-    with the caller's stack. needless to say this extremely dangerous and
-    makes brk unusable.
-    
-    since it's non-trivial to detect execution environments that might be
-    affected by this kernel bug, and since the severity of the bug makes
-    any sort of detection that might yield false-negatives unsafe, we
-    instead check the proximity of the brk to the stack pointer each time
-    the brk is to be expanded. both the main thread's stack (where the
-    real known risk lies) and the calling thread's stack are checked. an
-    arbitrary gap distance of 8 MB is imposed, chosen to be larger than
-    linux default main-thread stack reservation sizes and larger than any
-    reasonable stack configuration on nommu.
-    
-    the effeciveness of this patch relies on an assumption that the amount
-    by which the brk is being grown is smaller than the gap limit, which
-    is always true for malloc's use of brk. reliance on this assumption is
-    why the check is being done in malloc-specific code and not in __brk.
-
-commit bd1eaceaa3975bd2a2a34e211cff896affaecadf
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Tue Jun 9 20:09:27 2015 +0000
-
-    fix spurious errors from pwd/grp functions when nscd backend is absent
-    
-    for several pwd/grp functions, the only way the caller can distinguish
-    between a successful negative result ("no such user/group") and an
-    internal error is by clearing errno before the call and checking errno
-    afterwards. the nscd backend support code correctly simulated a
-    not-found response on systems where such a backend is not running, but
-    failed to restore errno.
-    
-    this commit also fixed an outdated/incorrect comment.
-
-commit 75ce4503950621b11fcc7f1fd1187dbcf3cde312
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sun Jun 7 20:55:23 2015 +0000
-
-    fix regression in pre-v7 arm on kernels with kuser helper removed
-    
-    the arm atomics/TLS runtime selection code is called from
-    __set_thread_area and depends on having libc.auxv and __hwcap
-    available. commit 71f099cb7db821c51d8f39dfac622c61e54d794c moved the
-    first call to __set_thread_area to the top of dynamic linking stage 3,
-    before this data is made available, causing the runtime detection code
-    to always see __hwcap as zero and thereby select the atomics/TLS
-    implementations based on kuser helper.
-    
-    upcoming work on superh will use similar runtime detection.
-    
-    ideally this early-init code should be cleanly refactored and shared
-    between the dynamic linker and static-linked startup.
-
-commit 32f3c4f70633488550c29a2444f819aafdf345ff
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sun Jun 7 03:09:16 2015 +0000
-
-    add multiple inclusion guard to locale_impl.h
-
-commit 04b8360adbb6487f61aa0c00e53ec3a90a5a0d29
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sun Jun 7 02:59:49 2015 +0000
-
-    remove redefinition of MB_CUR_MAX in locale_impl.h
-    
-    unless/until the byte-based C locale is implemented, defining
-    MB_CUR_MAX to 1 in the C locale is wrong. no internal code currently
-    uses the MB_CUR_MAX macro, but having it defined inconsistently is
-    error-prone. applications get the value from stdlib.h and were
-    unaffected.
-
-commit 16bf466532d7328e971012b0731ad493b017ad29
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 6 18:53:02 2015 +0000
-
-    make static C and C.UTF-8 locales available outside of newlocale
-
-commit 312eea2ea4f4363fb01b73660c08bfcf43dd3bb4
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 6 18:20:30 2015 +0000
-
-    remove another invalid skip of locking in ungetwc
-
-commit 3d7e32d28dc9962e9efc1c317c5b44b5b2df3008
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 6 18:16:22 2015 +0000
-
-    add macro version of ctype.h isascii function
-    
-    presumably internal code (ungetwc and fputwc) was written assuming a
-    macro implementation existed; otherwise use of isascii is just a
-    pessimization.
-
-commit 7e816a6487932cbb3cb71d94b609e50e81f4e5bf
-Author: Rich Felker <dalias@aerifal.cx>
-Date:   Sat Jun 6 18:11:17 2015 +0000
-
-    remove invalid skip of locking in ungetwc
-    
-    aside from being invalid, the early check only optimized the error
-    case, and likely pessimized the common case by separating the
-    two branches on isascii(c) at opposite ends of the function.
-
-commit 63f4b9f18f3674124d8bcb119739fec85e6da005
-Author: Timo Teräs <timo.teras@iki.fi>
-Date:   Fri Jun 5 10:39:42 2015 +0300
-
-    fix uselocale((locale_t)0) not to modify locale
-    
-    commit 68630b55c0c7219fe9df70dc28ffbf9efc8021d8 made the new locale to
-    be assigned unconditonally resulting in crashes later on.
-
-diff --git a/arch/arm/syscall_arch.h b/arch/arm/syscall_arch.h
-index 199ad2a..64461ec 100644
---- a/arch/arm/syscall_arch.h
-+++ b/arch/arm/syscall_arch.h
-@@ -72,3 +72,7 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
- 	register long r5 __asm__("r5") = f;
- 	__asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5));
- }
-+
-+#define VDSO_USEFUL
-+#define VDSO_CGT_SYM "__vdso_clock_gettime"
-+#define VDSO_CGT_VER "LINUX_2.6"
-diff --git a/arch/mips/pthread_arch.h b/arch/mips/pthread_arch.h
-index f8e35ae..904a248 100644
---- a/arch/mips/pthread_arch.h
-+++ b/arch/mips/pthread_arch.h
-@@ -13,4 +13,6 @@ static inline struct pthread *__pthread_self()
- #define TLS_ABOVE_TP
- #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
- 
-+#define DTP_OFFSET 0x8000
-+
- #define CANCEL_REG_IP (3-(union {int __i; char __b;}){1}.__b)
-diff --git a/arch/powerpc/pthread_arch.h b/arch/powerpc/pthread_arch.h
-index 4115ec8..1cbfc22 100644
---- a/arch/powerpc/pthread_arch.h
-+++ b/arch/powerpc/pthread_arch.h
-@@ -12,6 +12,8 @@ static inline struct pthread *__pthread_self()
- #define TLS_ABOVE_TP
- #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
- 
-+#define DTP_OFFSET 0x8000
-+
- // offset of the PC register in mcontext_t, divided by the system wordsize
- // the kernel calls the ip "nip", it's the first saved value after the 32
- // GPRs.
-diff --git a/arch/sh/src/__set_thread_area.c b/arch/sh/src/__set_thread_area.c
-new file mode 100644
-index 0000000..1d3e022
---- /dev/null
-+++ b/arch/sh/src/__set_thread_area.c
-@@ -0,0 +1,34 @@
-+#include "pthread_impl.h"
-+#include "libc.h"
-+#include "sh_atomic.h"
-+#include <elf.h>
-+
-+/* Also perform sh-specific init */
-+
-+#define CPU_HAS_LLSC 0x0040
-+
-+__attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model, __sh_nommu;
-+
-+int __set_thread_area(void *p)
-+{
-+	size_t *aux;
-+	__asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
-+#ifndef __SH4A__
-+	if (__hwcap & CPU_HAS_LLSC) {
-+		__sh_atomic_model = SH_A_LLSC;
-+		return 0;
-+	}
-+#if !defined(__SH3__) && !defined(__SH4__)
-+	for (aux=libc.auxv; *aux; aux+=2) {
-+		if (*aux != AT_PLATFORM) continue;
-+		const char *s = (void *)aux[1];
-+		if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
-+		__sh_atomic_model = SH_A_IMASK;
-+		__sh_nommu = 1;
-+		return 0;
-+	}
-+#endif
-+	/* __sh_atomic_model = SH_A_GUSA; */ /* 0, default */
-+#endif
-+	return 0;
-+}
-diff --git a/arch/sh/src/__unmapself.c b/arch/sh/src/__unmapself.c
-new file mode 100644
-index 0000000..4df9e7b
---- /dev/null
-+++ b/arch/sh/src/__unmapself.c
-@@ -0,0 +1,19 @@
-+#include "pthread_impl.h"
-+
-+void __unmapself_sh_mmu(void *, size_t);
-+void __unmapself_sh_nommu(void *, size_t);
-+
-+#if !defined(__SH3__) && !defined(__SH4__)
-+#define __unmapself __unmapself_sh_nommu
-+#include "../../../src/thread/__unmapself.c"
-+#undef __unmapself
-+extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu;
-+#else
-+#define __sh_nommu 0
-+#endif
-+
-+void __unmapself(void *base, size_t size)
-+{
-+	if (__sh_nommu) __unmapself_sh_nommu(base, size);
-+	else __unmapself_sh_mmu(base, size);
-+}
-diff --git a/arch/sh/src/atomic.c b/arch/sh/src/atomic.c
-index f8c615f..7fd7307 100644
---- a/arch/sh/src/atomic.c
-+++ b/arch/sh/src/atomic.c
-@@ -1,8 +1,26 @@
- #ifndef __SH4A__
- 
-+#include "sh_atomic.h"
- #include "atomic.h"
- #include "libc.h"
- 
-+static inline unsigned mask()
-+{
-+	unsigned sr;
-+	__asm__ __volatile__ ( "\n"
-+	"	stc sr,r0 \n"
-+	"	mov r0,%0 \n"
-+	"	or #0xf0,r0 \n"
-+	"	ldc r0,sr \n"
-+	: "=&r"(sr) : : "memory", "r0" );
-+	return sr;
-+}
-+
-+static inline void unmask(unsigned sr)
-+{
-+	__asm__ __volatile__ ( "ldc %0,sr" : : "r"(sr) : "memory" );
-+}
-+
- /* gusa is a hack in the kernel which lets you create a sequence of instructions
-  * which will be restarted if the process is preempted in the middle of the
-  * sequence. It will do for implementing atomics on non-smp systems. ABI is:
-@@ -25,11 +43,17 @@
- 	"	mov.l " new ", @" mem "\n" \
- 	"1:	mov r1, r15\n"
- 
--#define CPU_HAS_LLSC 0x0040
--
- int __sh_cas(volatile int *p, int t, int s)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_cas_llsc(p, t, s);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_cas_llsc(p, t, s);
-+
-+	if (__sh_atomic_model == SH_A_IMASK) {
-+		unsigned sr = mask();
-+		int old = *p;
-+		if (old==t) *p = s;
-+		unmask(sr);
-+		return old;
-+	}
- 
- 	int old;
- 	__asm__ __volatile__(
-@@ -43,7 +67,15 @@ int __sh_cas(volatile int *p, int t, int s)
- 
- int __sh_swap(volatile int *x, int v)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_swap_llsc(x, v);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_swap_llsc(x, v);
-+
-+	if (__sh_atomic_model == SH_A_IMASK) {
-+		unsigned sr = mask();
-+		int old = *x;
-+		*x = v;
-+		unmask(sr);
-+		return old;
-+	}
- 
- 	int old;
- 	__asm__ __volatile__(
-@@ -55,7 +87,15 @@ int __sh_swap(volatile int *x, int v)
- 
- int __sh_fetch_add(volatile int *x, int v)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_fetch_add_llsc(x, v);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_fetch_add_llsc(x, v);
-+
-+	if (__sh_atomic_model == SH_A_IMASK) {
-+		unsigned sr = mask();
-+		int old = *x;
-+		*x = old + v;
-+		unmask(sr);
-+		return old;
-+	}
- 
- 	int old, dummy;
- 	__asm__ __volatile__(
-@@ -69,7 +109,7 @@ int __sh_fetch_add(volatile int *x, int v)
- 
- void __sh_store(volatile int *p, int x)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_store_llsc(p, x);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_store_llsc(p, x);
- 	__asm__ __volatile__(
- 		"	mov.l %1, @%0\n"
- 		: : "r"(p), "r"(x) : "memory");
-@@ -77,7 +117,15 @@ void __sh_store(volatile int *p, int x)
- 
- void __sh_and(volatile int *x, int v)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_and_llsc(x, v);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_and_llsc(x, v);
-+
-+	if (__sh_atomic_model == SH_A_IMASK) {
-+		unsigned sr = mask();
-+		int old = *x;
-+		*x = old & v;
-+		unmask(sr);
-+		return;
-+	}
- 
- 	int dummy;
- 	__asm__ __volatile__(
-@@ -89,7 +137,15 @@ void __sh_and(volatile int *x, int v)
- 
- void __sh_or(volatile int *x, int v)
- {
--	if (__hwcap & CPU_HAS_LLSC) return __sh_or_llsc(x, v);
-+	if (__sh_atomic_model == SH_A_LLSC) return __sh_or_llsc(x, v);
-+
-+	if (__sh_atomic_model == SH_A_IMASK) {
-+		unsigned sr = mask();
-+		int old = *x;
-+		*x = old | v;
-+		unmask(sr);
-+		return;
-+	}
- 
- 	int dummy;
- 	__asm__ __volatile__(
-diff --git a/arch/sh/src/sh_atomic.h b/arch/sh/src/sh_atomic.h
-new file mode 100644
-index 0000000..054c2a3
---- /dev/null
-+++ b/arch/sh/src/sh_atomic.h
-@@ -0,0 +1,15 @@
-+#ifndef _SH_ATOMIC_H
-+#define _SH_ATOMIC_H
-+
-+#define SH_A_GUSA 0
-+#define SH_A_LLSC 1
-+#define SH_A_CAS 2
-+#if !defined(__SH3__) && !defined(__SH4__)
-+#define SH_A_IMASK 3
-+#else
-+#define SH_A_IMASK -1LL /* unmatchable by unsigned int */
-+#endif
-+
-+extern __attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model;
-+
-+#endif
-diff --git a/arch/sh/syscall_arch.h b/arch/sh/syscall_arch.h
-index 7ee21a5..f63675a 100644
---- a/arch/sh/syscall_arch.h
-+++ b/arch/sh/syscall_arch.h
-@@ -8,7 +8,7 @@
-  */
- #define __asm_syscall(trapno, ...) do {   \
- 	__asm__ __volatile__ (                \
--		"trapa #" #trapno "\n"            \
-+		"trapa #31\n"            \
- 		"or r0, r0\n"                     \
- 		"or r0, r0\n"                     \
- 		"or r0, r0\n"                     \
-diff --git a/include/ctype.h b/include/ctype.h
-index cd2e016..7936536 100644
---- a/include/ctype.h
-+++ b/include/ctype.h
-@@ -64,6 +64,7 @@ int   isascii(int);
- int   toascii(int);
- #define _tolower(a) ((a)|0x20)
- #define _toupper(a) ((a)&0x5f)
-+#define isascii(a) (0 ? isascii(a) : (unsigned)(a) < 128)
- 
- #endif
- 
-diff --git a/include/stdlib.h b/include/stdlib.h
-index 97ce5a7..d2c911f 100644
---- a/include/stdlib.h
-+++ b/include/stdlib.h
-@@ -76,7 +76,8 @@ size_t wcstombs (char *__restrict, const wchar_t *__restrict, size_t);
- #define EXIT_FAILURE 1
- #define EXIT_SUCCESS 0
- 
--#define MB_CUR_MAX ((size_t)+4)
-+size_t __ctype_get_mb_cur_max(void);
-+#define MB_CUR_MAX (__ctype_get_mb_cur_max())
- 
- #define RAND_MAX (0x7fffffff)
- 
-diff --git a/src/ctype/__ctype_get_mb_cur_max.c b/src/ctype/__ctype_get_mb_cur_max.c
-index d235f4d..8e946fc 100644
---- a/src/ctype/__ctype_get_mb_cur_max.c
-+++ b/src/ctype/__ctype_get_mb_cur_max.c
-@@ -1,6 +1,7 @@
--#include <stddef.h>
-+#include <stdlib.h>
-+#include "locale_impl.h"
- 
- size_t __ctype_get_mb_cur_max()
- {
--	return 4;
-+	return MB_CUR_MAX;
- }
-diff --git a/src/ctype/isascii.c b/src/ctype/isascii.c
-index 3af0a10..54ad3bf 100644
---- a/src/ctype/isascii.c
-+++ b/src/ctype/isascii.c
-@@ -1,4 +1,5 @@
- #include <ctype.h>
-+#undef isascii
- 
- int isascii(int c)
- {
-diff --git a/src/env/__stack_chk_fail.c b/src/env/__stack_chk_fail.c
-index 47784c6..be0c184 100644
---- a/src/env/__stack_chk_fail.c
-+++ b/src/env/__stack_chk_fail.c
-@@ -25,4 +25,8 @@ void __stack_chk_fail_local(void)
- 	a_crash();
- }
- 
-+#else
-+
-+weak_alias(__stack_chk_fail, __stack_chk_fail_local);
-+
- #endif
-diff --git a/src/internal/libc.h b/src/internal/libc.h
-index 6810cd8..98c7535 100644
---- a/src/internal/libc.h
-+++ b/src/internal/libc.h
-@@ -17,8 +17,6 @@ struct __libc {
- 	int secure;
- 	volatile int threads_minus_1;
- 	size_t *auxv;
--	FILE *ofl_head;
--	volatile int ofl_lock[2];
- 	size_t tls_size;
- 	size_t page_size;
- 	struct __locale_struct global_locale;
-diff --git a/src/internal/locale_impl.h b/src/internal/locale_impl.h
-index 9b8385e..f5e4d9b 100644
---- a/src/internal/locale_impl.h
-+++ b/src/internal/locale_impl.h
-@@ -1,3 +1,6 @@
-+#ifndef _LOCALE_IMPL_H
-+#define _LOCALE_IMPL_H
-+
- #include <locale.h>
- #include <stdlib.h>
- #include "libc.h"
-@@ -12,6 +15,10 @@ struct __locale_map {
- 	const struct __locale_map *next;
- };
- 
-+extern const struct __locale_map __c_dot_utf8;
-+extern const struct __locale_struct __c_locale;
-+extern const struct __locale_struct __c_dot_utf8_locale;
-+
- const struct __locale_map *__get_locale(int, const char *);
- const char *__mo_lookup(const void *, size_t, const char *);
- const char *__lctrans(const char *, const struct __locale_map *);
-@@ -20,9 +27,14 @@ const char *__lctrans_cur(const char *);
- #define LCTRANS(msg, lc, loc) __lctrans(msg, (loc)->cat[(lc)])
- #define LCTRANS_CUR(msg) __lctrans_cur(msg)
- 
-+#define C_LOCALE ((locale_t)&__c_locale)
-+#define UTF8_LOCALE ((locale_t)&__c_dot_utf8_locale)
-+
- #define CURRENT_LOCALE (__pthread_self()->locale)
- 
- #define CURRENT_UTF8 (!!__pthread_self()->locale->cat[LC_CTYPE])
- 
- #undef MB_CUR_MAX
- #define MB_CUR_MAX (CURRENT_UTF8 ? 4 : 1)
-+
-+#endif
-diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
-index e29f9c8..3890bb5 100644
---- a/src/internal/pthread_impl.h
-+++ b/src/internal/pthread_impl.h
-@@ -94,6 +94,10 @@ struct __timer {
- #define CANARY canary
- #endif
- 
-+#ifndef DTP_OFFSET
-+#define DTP_OFFSET 0
-+#endif
-+
- #define SIGTIMER 32
- #define SIGCANCEL 33
- #define SIGSYNCCALL 34
-diff --git a/src/internal/sh/syscall.s b/src/internal/sh/syscall.s
-index d00712a..331918a 100644
---- a/src/internal/sh/syscall.s
-+++ b/src/internal/sh/syscall.s
-@@ -13,7 +13,7 @@ __syscall:
- 	mov.l @r15, r7
- 	mov.l @(4,r15), r0
- 	mov.l @(8,r15), r1
--	trapa #22
-+	trapa #31
- 	or r0, r0
- 	or r0, r0
- 	or r0, r0
-diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
-index e1325fe..0dd7fb5 100644
---- a/src/internal/stdio_impl.h
-+++ b/src/internal/stdio_impl.h
-@@ -47,6 +47,7 @@ struct _IO_FILE {
- 	unsigned char *shend;
- 	off_t shlim, shcnt;
- 	FILE *prev_locked, *next_locked;
-+	struct __locale_struct *locale;
- };
- 
- size_t __stdio_read(FILE *, unsigned char *, size_t);
-@@ -75,8 +76,9 @@ int __putc_unlocked(int, FILE *);
- FILE *__fdopen(int, const char *);
- int __fmodeflags(const char *);
- 
--#define OFLLOCK() LOCK(libc.ofl_lock)
--#define OFLUNLOCK() UNLOCK(libc.ofl_lock)
-+FILE *__ofl_add(FILE *f);
-+FILE **__ofl_lock(void);
-+void __ofl_unlock(void);
- 
- #define feof(f) ((f)->flags & F_EOF)
- #define ferror(f) ((f)->flags & F_ERR)
-diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
-index 42b056d..d2a7249 100644
---- a/src/ldso/dynlink.c
-+++ b/src/ldso/dynlink.c
-@@ -337,7 +337,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri
- 			*reloc_addr = def.dso->tls_id;
- 			break;
- 		case REL_DTPOFF:
--			*reloc_addr = tls_val + addend;
-+			*reloc_addr = tls_val + addend - DTP_OFFSET;
- 			break;
- #ifdef TLS_ABOVE_TP
- 		case REL_TPOFF:
-@@ -423,6 +423,28 @@ static void reclaim_gaps(struct dso *dso)
- 	}
- }
- 
-+static void *mmap_fixed(void *p, size_t n, int prot, int flags, int fd, off_t off)
-+{
-+	char *q = mmap(p, n, prot, flags, fd, off);
-+	if (q != MAP_FAILED || errno != EINVAL) return q;
-+	/* Fallbacks for MAP_FIXED failure on NOMMU kernels. */
-+	if (flags & MAP_ANONYMOUS) {
-+		memset(p, 0, n);
-+		return p;
-+	}
-+	ssize_t r;
-+	if (lseek(fd, off, SEEK_SET) < 0) return MAP_FAILED;
-+	for (q=p; n; q+=r, off+=r, n-=r) {
-+		r = read(fd, q, n);
-+		if (r < 0 && errno != EINTR) return MAP_FAILED;
-+		if (!r) {
-+			memset(q, 0, n);
-+			break;
-+		}
-+	}
-+	return p;
-+}
-+
- static void *map_library(int fd, struct dso *dso)
- {
- 	Ehdr buf[(896+sizeof(Ehdr))/sizeof(Ehdr)];
-@@ -524,19 +546,20 @@ static void *map_library(int fd, struct dso *dso)
- 		prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
- 			((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
- 			((ph->p_flags&PF_X) ? PROT_EXEC : 0));
--		if (mmap(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
-+		if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
- 			goto error;
- 		if (ph->p_memsz > ph->p_filesz) {
- 			size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
- 			size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
- 			memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
--			if (pgbrk-(size_t)base < this_max && mmap((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
-+			if (pgbrk-(size_t)base < this_max && mmap_fixed((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
- 				goto error;
- 		}
- 	}
- 	for (i=0; ((size_t *)(base+dyn))[i]; i+=2)
- 		if (((size_t *)(base+dyn))[i]==DT_TEXTREL) {
--			if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC) < 0)
-+			if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC)
-+			    && errno != ENOSYS)
- 				goto error;
- 			break;
- 		}
-@@ -927,7 +950,8 @@ static void reloc_all(struct dso *p)
- 		do_relocs(p, (void *)(p->base+dyn[DT_RELA]), dyn[DT_RELASZ], 3);
- 
- 		if (head != &ldso && p->relro_start != p->relro_end &&
--		    mprotect(p->base+p->relro_start, p->relro_end-p->relro_start, PROT_READ) < 0) {
-+		    mprotect(p->base+p->relro_start, p->relro_end-p->relro_start, PROT_READ)
-+		    && errno != ENOSYS) {
- 			error("Error relocating %s: RELRO protection failed: %m",
- 				p->name);
- 			if (runtime) longjmp(*rtld_fail, 1);
-@@ -1078,7 +1102,7 @@ void *__tls_get_new(size_t *v)
- 	__block_all_sigs(&set);
- 	if (v[0]<=(size_t)self->dtv[0]) {
- 		__restore_sigs(&set);
--		return (char *)self->dtv[v[0]]+v[1];
-+		return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
- 	}
- 
- 	/* This is safe without any locks held because, if the caller
-@@ -1111,7 +1135,7 @@ void *__tls_get_new(size_t *v)
- 		if (p->tls_id == v[0]) break;
- 	}
- 	__restore_sigs(&set);
--	return mem + v[1];
-+	return mem + v[1] + DTP_OFFSET;
- }
- 
- static void update_tls_size()
-@@ -1192,6 +1216,17 @@ _Noreturn void __dls3(size_t *sp)
- 	char **argv_orig = argv;
- 	char **envp = argv+argc+1;
- 
-+	/* Find aux vector just past environ[] and use it to initialize
-+	 * global data that may be needed before we can make syscalls. */
-+	__environ = envp;
-+	for (i=argc+1; argv[i]; i++);
-+	libc.auxv = auxv = (void *)(argv+i+1);
-+	decode_vec(auxv, aux, AUX_CNT);
-+	__hwcap = aux[AT_HWCAP];
-+	libc.page_size = aux[AT_PAGESZ];
-+	libc.secure = ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
-+		|| aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]);
-+
- 	/* Setup early thread pointer in builtin_tls for ldso/libc itself to
- 	 * use during dynamic linking. If possible it will also serve as the
- 	 * thread pointer at runtime. */
-@@ -1200,25 +1235,11 @@ _Noreturn void __dls3(size_t *sp)
- 		a_crash();
- 	}
- 
--	/* Find aux vector just past environ[] */
--	for (i=argc+1; argv[i]; i++)
--		if (!memcmp(argv[i], "LD_LIBRARY_PATH=", 16))
--			env_path = argv[i]+16;
--		else if (!memcmp(argv[i], "LD_PRELOAD=", 11))
--			env_preload = argv[i]+11;
--	auxv = (void *)(argv+i+1);
--
--	decode_vec(auxv, aux, AUX_CNT);
--
- 	/* Only trust user/env if kernel says we're not suid/sgid */
--	if ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
--	  || aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]) {
--		env_path = 0;
--		env_preload = 0;
--		libc.secure = 1;
-+	if (!libc.secure) {
-+		env_path = getenv("LD_LIBRARY_PATH");
-+		env_preload = getenv("LD_PRELOAD");
- 	}
--	libc.page_size = aux[AT_PAGESZ];
--	libc.auxv = auxv;
- 
- 	/* If the main program was already loaded by the kernel,
- 	 * AT_PHDR will point to some location other than the dynamic
-diff --git a/src/locale/c_locale.c b/src/locale/c_locale.c
-new file mode 100644
-index 0000000..77ccf58
---- /dev/null
-+++ b/src/locale/c_locale.c
-@@ -0,0 +1,15 @@
-+#include "locale_impl.h"
-+#include <stdint.h>
-+
-+static const uint32_t empty_mo[] = { 0x950412de, 0, -1, -1, -1 };
-+
-+const struct __locale_map __c_dot_utf8 = {
-+	.map = empty_mo,
-+	.map_size = sizeof empty_mo,
-+	.name = "C.UTF-8"
-+};
-+
-+const struct __locale_struct __c_locale = { 0 };
-+const struct __locale_struct __c_dot_utf8_locale = {
-+	.cat[LC_CTYPE] = &__c_dot_utf8
-+};
-diff --git a/src/locale/iconv.c b/src/locale/iconv.c
-index e6121ae..1eeea94 100644
---- a/src/locale/iconv.c
-+++ b/src/locale/iconv.c
-@@ -5,6 +5,7 @@
- #include <stdlib.h>
- #include <limits.h>
- #include <stdint.h>
-+#include "locale_impl.h"
- 
- #define UTF_32BE    0300
- #define UTF_16LE    0301
-@@ -165,9 +166,12 @@ size_t iconv(iconv_t cd0, char **restrict in, size_t *restrict inb, char **restr
- 	int err;
- 	unsigned char type = map[-1];
- 	unsigned char totype = tomap[-1];
-+	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
- 
- 	if (!in || !*in || !*inb) return 0;
- 
-+	*ploc = UTF8_LOCALE;
-+
- 	for (; *inb; *in+=l, *inb-=l) {
- 		c = *(unsigned char *)*in;
- 		l = 1;
-@@ -431,6 +435,7 @@ size_t iconv(iconv_t cd0, char **restrict in, size_t *restrict inb, char **restr
- 			break;
- 		}
- 	}
-+	*ploc = loc;
- 	return x;
- ilseq:
- 	err = EILSEQ;
-@@ -445,5 +450,6 @@ starved:
- 	x = -1;
- end:
- 	errno = err;
-+	*ploc = loc;
- 	return x;
- }
-diff --git a/src/locale/langinfo.c b/src/locale/langinfo.c
-index a1ada24..776b447 100644
---- a/src/locale/langinfo.c
-+++ b/src/locale/langinfo.c
-@@ -33,7 +33,8 @@ char *__nl_langinfo_l(nl_item item, locale_t loc)
- 	int idx = item & 65535;
- 	const char *str;
- 
--	if (item == CODESET) return "UTF-8";
-+	if (item == CODESET)
-+		return MB_CUR_MAX==1 ? "UTF-8-CODE-UNITS" : "UTF-8";
- 	
- 	switch (cat) {
- 	case LC_NUMERIC:
-diff --git a/src/locale/locale_map.c b/src/locale/locale_map.c
-index 4346bb0..c3e5917 100644
---- a/src/locale/locale_map.c
-+++ b/src/locale/locale_map.c
-@@ -24,14 +24,6 @@ static const char envvars[][12] = {
- 	"LC_MESSAGES",
- };
- 
--static const uint32_t empty_mo[] = { 0x950412de, 0, -1, -1, -1 };
--
--const struct __locale_map __c_dot_utf8 = {
--	.map = empty_mo,
--	.map_size = sizeof empty_mo,
--	.name = "C.UTF-8"
--};
--
- const struct __locale_map *__get_locale(int cat, const char *val)
- {
- 	static int lock[2];
-@@ -107,8 +99,8 @@ const struct __locale_map *__get_locale(int cat, const char *val)
- 	 * sake of being able to do message translations at the
- 	 * application level. */
- 	if (!new && (new = malloc(sizeof *new))) {
--		new->map = empty_mo;
--		new->map_size = sizeof empty_mo;
-+		new->map = __c_dot_utf8.map;
-+		new->map_size = __c_dot_utf8.map_size;
- 		memcpy(new->name, val, n);
- 		new->name[n] = 0;
- 		new->next = loc_head;
-diff --git a/src/locale/newlocale.c b/src/locale/newlocale.c
-index 89d36b1..f50bbe9 100644
---- a/src/locale/newlocale.c
-+++ b/src/locale/newlocale.c
-@@ -3,16 +3,9 @@
- #include "locale_impl.h"
- #include "libc.h"
- 
--extern const struct __locale_map __c_dot_utf8;
--
--static const struct __locale_struct c_locale = { 0 };
--static const struct __locale_struct c_dot_utf8_locale = {
--	.cat[LC_CTYPE] = &__c_dot_utf8
--};
--
- int __loc_is_allocated(locale_t loc)
- {
--	return loc && loc != &c_locale && loc != &c_dot_utf8_locale;
-+	return loc && loc != C_LOCALE && loc != UTF8_LOCALE;
- }
- 
- locale_t __newlocale(int mask, const char *name, locale_t loc)
-@@ -44,9 +37,9 @@ locale_t __newlocale(int mask, const char *name, locale_t loc)
- 	}
- 
- 	if (!j)
--		return (locale_t)&c_locale;
--	if (j==1 && tmp.cat[LC_CTYPE]==c_dot_utf8_locale.cat[LC_CTYPE])
--		return (locale_t)&c_dot_utf8_locale;
-+		return C_LOCALE;
-+	if (j==1 && tmp.cat[LC_CTYPE]==&__c_dot_utf8)
-+		return UTF8_LOCALE;
- 
- 	if ((loc = malloc(sizeof *loc))) *loc = tmp;
- 
-diff --git a/src/locale/uselocale.c b/src/locale/uselocale.c
-index b70a0c1..0fc5ecb 100644
---- a/src/locale/uselocale.c
-+++ b/src/locale/uselocale.c
-@@ -8,9 +8,7 @@ locale_t __uselocale(locale_t new)
- 	locale_t old = self->locale;
- 	locale_t global = &libc.global_locale;
- 
--	if (new == LC_GLOBAL_LOCALE) new = global;
--
--	self->locale = new;
-+	if (new) self->locale = new == LC_GLOBAL_LOCALE ? global : new;
- 
- 	return old == global ? LC_GLOBAL_LOCALE : old;
- }
-diff --git a/src/malloc/calloc.c b/src/malloc/calloc.c
-index c3dfb47..436c0b0 100644
---- a/src/malloc/calloc.c
-+++ b/src/malloc/calloc.c
-@@ -1,22 +1,13 @@
- #include <stdlib.h>
- #include <errno.h>
- 
-+void *__malloc0(size_t);
-+
- void *calloc(size_t m, size_t n)
- {
--	void *p;
--	size_t *z;
- 	if (n && m > (size_t)-1/n) {
- 		errno = ENOMEM;
- 		return 0;
- 	}
--	n *= m;
--	p = malloc(n);
--	if (!p) return 0;
--	/* Only do this for non-mmapped chunks */
--	if (((size_t *)p)[-1] & 7) {
--		/* Only write words that are not already zero */
--		m = (n + sizeof *z - 1)/sizeof *z;
--		for (z=p; m; m--, z++) if (*z) *z=0;
--	}
--	return p;
-+	return __malloc0(n * m);
- }
-diff --git a/src/malloc/expand_heap.c b/src/malloc/expand_heap.c
-new file mode 100644
-index 0000000..d8c0be7
---- /dev/null
-+++ b/src/malloc/expand_heap.c
-@@ -0,0 +1,72 @@
-+#include <limits.h>
-+#include <stdint.h>
-+#include <errno.h>
-+#include <sys/mman.h>
-+#include "libc.h"
-+#include "syscall.h"
-+
-+/* This function returns true if the interval [old,new]
-+ * intersects the 'len'-sized interval below &libc.auxv
-+ * (interpreted as the main-thread stack) or below &b
-+ * (the current stack). It is used to defend against
-+ * buggy brk implementations that can cross the stack. */
-+
-+static int traverses_stack_p(uintptr_t old, uintptr_t new)
-+{
-+	const uintptr_t len = 8<<20;
-+	uintptr_t a, b;
-+
-+	b = (uintptr_t)libc.auxv;
-+	a = b > len ? b-len : 0;
-+	if (new>a && old<b) return 1;
-+
-+	b = (uintptr_t)&b;
-+	a = b > len ? b-len : 0;
-+	if (new>a && old<b) return 1;
-+
-+	return 0;
-+}
-+
-+void *__mmap(void *, size_t, int, int, int, off_t);
-+
-+/* Expand the heap in-place if brk can be used, or otherwise via mmap,
-+ * using an exponential lower bound on growth by mmap to make
-+ * fragmentation asymptotically irrelevant. The size argument is both
-+ * an input and an output, since the caller needs to know the size
-+ * allocated, which will be larger than requested due to page alignment
-+ * and mmap minimum size rules. The caller is responsible for locking
-+ * to prevent concurrent calls. */
-+
-+void *__expand_heap(size_t *pn)
-+{
-+	static uintptr_t brk;
-+	static unsigned mmap_step;
-+	size_t n = *pn;
-+
-+	if (n > SIZE_MAX/2 - PAGE_SIZE) {
-+		errno = ENOMEM;
-+		return 0;
-+	}
-+	n += -n & PAGE_SIZE-1;
-+
-+	if (!brk) {
-+		brk = __syscall(SYS_brk, 0);
-+		brk += -brk & PAGE_SIZE-1;
-+	}
-+
-+	if (n < SIZE_MAX-brk && !traverses_stack_p(brk, brk+n)
-+	    && __syscall(SYS_brk, brk+n)==brk+n) {
-+		*pn = n;
-+		brk += n;
-+		return (void *)(brk-n);
-+	}
-+
-+	size_t min = (size_t)PAGE_SIZE << mmap_step/2;
-+	if (n < min) n = min;
-+	void *area = __mmap(0, n, PROT_READ|PROT_WRITE,
-+		MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
-+	if (area == MAP_FAILED) return 0;
-+	*pn = n;
-+	mmap_step++;
-+	return area;
-+}
-diff --git a/src/malloc/lite_malloc.c b/src/malloc/lite_malloc.c
-index 7643fc2..09ac575 100644
---- a/src/malloc/lite_malloc.c
-+++ b/src/malloc/lite_malloc.c
-@@ -4,43 +4,47 @@
- #include <errno.h>
- #include "libc.h"
- 
--uintptr_t __brk(uintptr_t);
--
- #define ALIGN 16
- 
-+void *__expand_heap(size_t *);
-+
- void *__simple_malloc(size_t n)
- {
--	static uintptr_t cur, brk;
--	uintptr_t base, new;
-+	static char *cur, *end;
- 	static volatile int lock[2];
--	size_t align=1;
-+	size_t align=1, pad;
-+	void *p;
- 
- 	if (!n) n++;
--	if (n > SIZE_MAX/2) goto toobig;
--
- 	while (align<n && align<ALIGN)
- 		align += align;
--	n = n + align - 1 & -align;
- 
- 	LOCK(lock);
--	if (!cur) cur = brk = __brk(0)+16;
--	base = cur + align-1 & -align;
--	if (n > SIZE_MAX - PAGE_SIZE - base) goto fail;
--	if (base+n > brk) {
--		new = base+n + PAGE_SIZE-1 & -PAGE_SIZE;
--		if (__brk(new) != new) goto fail;
--		brk = new;
--	}
--	cur = base+n;
--	UNLOCK(lock);
- 
--	return (void *)base;
-+	pad = -(uintptr_t)cur & align-1;
-+
-+	if (n <= SIZE_MAX/2 + ALIGN) n += pad;
-+
-+	if (n > end-cur) {
-+		size_t m = n;
-+		char *new = __expand_heap(&m);
-+		if (!new) {
-+			UNLOCK(lock);
-+			return 0;
-+		}
-+		if (new != end) {
-+			cur = new;
-+			n -= pad;
-+			pad = 0;
-+		}
-+		end = new + m;
-+	}
- 
--fail:
-+	p = cur + pad;
-+	cur += n;
- 	UNLOCK(lock);
--toobig:
--	errno = ENOMEM;
--	return 0;
-+	return p;
- }
- 
- weak_alias(__simple_malloc, malloc);
-+weak_alias(__simple_malloc, __malloc0);
-diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
-index d4de2dc..eb68d55 100644
---- a/src/malloc/malloc.c
-+++ b/src/malloc/malloc.c
-@@ -13,7 +13,6 @@
- #define inline inline __attribute__((always_inline))
- #endif
- 
--uintptr_t __brk(uintptr_t);
- void *__mmap(void *, size_t, int, int, int, off_t);
- int __munmap(void *, size_t);
- void *__mremap(void *, size_t, size_t, int, ...);
-@@ -31,13 +30,9 @@ struct bin {
- };
- 
- static struct {
--	uintptr_t brk;
--	size_t *heap;
- 	volatile uint64_t binmap;
- 	struct bin bins[64];
--	volatile int brk_lock[2];
- 	volatile int free_lock[2];
--	unsigned mmap_step;
- } mal;
- 
- 
-@@ -152,69 +147,52 @@ void __dump_heap(int x)
- }
- #endif
- 
-+void *__expand_heap(size_t *);
-+
- static struct chunk *expand_heap(size_t n)
- {
--	static int init;
-+	static int heap_lock[2];
-+	static void *end;
-+	void *p;
- 	struct chunk *w;
--	uintptr_t new;
--
--	lock(mal.brk_lock);
- 
--	if (!init) {
--		mal.brk = __brk(0);
--#ifdef SHARED
--		mal.brk = mal.brk + PAGE_SIZE-1 & -PAGE_SIZE;
--#endif
--		mal.brk = mal.brk + 2*SIZE_ALIGN-1 & -SIZE_ALIGN;
--		mal.heap = (void *)mal.brk;
--		init = 1;
--	}
-+	/* The argument n already accounts for the caller's chunk
-+	 * overhead needs, but if the heap can't be extended in-place,
-+	 * we need room for an extra zero-sized sentinel chunk. */
-+	n += SIZE_ALIGN;
- 
--	if (n > SIZE_MAX - mal.brk - 2*PAGE_SIZE) goto fail;
--	new = mal.brk + n + SIZE_ALIGN + PAGE_SIZE - 1 & -PAGE_SIZE;
--	n = new - mal.brk;
-+	lock(heap_lock);
- 
--	if (__brk(new) != new) {
--		size_t min = (size_t)PAGE_SIZE << mal.mmap_step/2;
--		n += -n & PAGE_SIZE-1;
--		if (n < min) n = min;
--		void *area = __mmap(0, n, PROT_READ|PROT_WRITE,
--			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
--		if (area == MAP_FAILED) goto fail;
-+	p = __expand_heap(&n);
-+	if (!p) {
-+		unlock(heap_lock);
-+		return 0;
-+	}
- 
--		mal.mmap_step++;
--		area = (char *)area + SIZE_ALIGN - OVERHEAD;
--		w = area;
-+	/* If not just expanding existing space, we need to make a
-+	 * new sentinel chunk below the allocated space. */
-+	if (p != end) {
-+		/* Valid/safe because of the prologue increment. */
- 		n -= SIZE_ALIGN;
-+		p = (char *)p + SIZE_ALIGN;
-+		w = MEM_TO_CHUNK(p);
- 		w->psize = 0 | C_INUSE;
--		w->csize = n | C_INUSE;
--		w = NEXT_CHUNK(w);
--		w->psize = n | C_INUSE;
--		w->csize = 0 | C_INUSE;
--
--		unlock(mal.brk_lock);
--
--		return area;
- 	}
- 
--	w = MEM_TO_CHUNK(mal.heap);
--	w->psize = 0 | C_INUSE;
--
--	w = MEM_TO_CHUNK(new);
-+	/* Record new heap end and fill in footer. */
-+	end = (char *)p + n;
-+	w = MEM_TO_CHUNK(end);
- 	w->psize = n | C_INUSE;
- 	w->csize = 0 | C_INUSE;
- 
--	w = MEM_TO_CHUNK(mal.brk);
-+	/* Fill in header, which may be new or may be replacing a
-+	 * zero-size sentinel header at the old end-of-heap. */
-+	w = MEM_TO_CHUNK(p);
- 	w->csize = n | C_INUSE;
--	mal.brk = new;
--	
--	unlock(mal.brk_lock);
-+
-+	unlock(heap_lock);
- 
- 	return w;
--fail:
--	unlock(mal.brk_lock);
--	errno = ENOMEM;
--	return 0;
- }
- 
- static int adjust_size(size_t *n)
-@@ -378,6 +356,17 @@ void *malloc(size_t n)
- 	return CHUNK_TO_MEM(c);
- }
- 
-+void *__malloc0(size_t n)
-+{
-+	void *p = malloc(n);
-+	if (p && !IS_MMAPPED(MEM_TO_CHUNK(p))) {
-+		size_t *z;
-+		n = (n + sizeof *z - 1)/sizeof *z;
-+		for (z=p; n; n--, z++) if (*z) *z=0;
-+	}
-+	return p;
-+}
-+
- void *realloc(void *p, size_t n)
- {
- 	struct chunk *self, *next;
-diff --git a/src/multibyte/btowc.c b/src/multibyte/btowc.c
-index 9d2c3b1..8acd0a2 100644
---- a/src/multibyte/btowc.c
-+++ b/src/multibyte/btowc.c
-@@ -1,7 +1,10 @@
- #include <stdio.h>
- #include <wchar.h>
-+#include <stdlib.h>
-+#include "internal.h"
- 
- wint_t btowc(int c)
- {
--	return c<128U ? c : EOF;
-+	int b = (unsigned char)c;
-+	return b<128U ? b : (MB_CUR_MAX==1 && c!=EOF) ? CODEUNIT(c) : WEOF;
- }
-diff --git a/src/multibyte/internal.h b/src/multibyte/internal.h
-index cc017fa..53d62ed 100644
---- a/src/multibyte/internal.h
-+++ b/src/multibyte/internal.h
-@@ -23,3 +23,10 @@ extern const uint32_t bittab[];
- 
- #define SA 0xc2u
- #define SB 0xf4u
-+
-+/* Arbitrary encoding for representing code units instead of characters. */
-+#define CODEUNIT(c) (0xdfff & (signed char)(c))
-+#define IS_CODEUNIT(c) ((unsigned)(c)-0xdf80 < 0x80)
-+
-+/* Get inline definition of MB_CUR_MAX. */
-+#include "locale_impl.h"
-diff --git a/src/multibyte/mbrtowc.c b/src/multibyte/mbrtowc.c
-index e7b3654..ca7da70 100644
---- a/src/multibyte/mbrtowc.c
-+++ b/src/multibyte/mbrtowc.c
-@@ -4,6 +4,7 @@
-  * unnecessary.
-  */
- 
-+#include <stdlib.h>
- #include <wchar.h>
- #include <errno.h>
- #include "internal.h"
-@@ -27,6 +28,7 @@ size_t mbrtowc(wchar_t *restrict wc, const char *restrict src, size_t n, mbstate
- 	if (!n) return -2;
- 	if (!c) {
- 		if (*s < 0x80) return !!(*wc = *s);
-+		if (MB_CUR_MAX==1) return (*wc = CODEUNIT(*s)), 1;
- 		if (*s-SA > SB-SA) goto ilseq;
- 		c = bittab[*s++-SA]; n--;
- 	}
-diff --git a/src/multibyte/mbsrtowcs.c b/src/multibyte/mbsrtowcs.c
-index 3c1343a..e23083d 100644
---- a/src/multibyte/mbsrtowcs.c
-+++ b/src/multibyte/mbsrtowcs.c
-@@ -7,6 +7,8 @@
- #include <stdint.h>
- #include <wchar.h>
- #include <errno.h>
-+#include <string.h>
-+#include <stdlib.h>
- #include "internal.h"
- 
- size_t mbsrtowcs(wchar_t *restrict ws, const char **restrict src, size_t wn, mbstate_t *restrict st)
-@@ -24,6 +26,23 @@ size_t mbsrtowcs(wchar_t *restrict ws, const char **restrict src, size_t wn, mbs
- 		}
- 	}
- 
-+	if (MB_CUR_MAX==1) {
-+		if (!ws) return strlen((const char *)s);
-+		for (;;) {
-+			if (!wn) {
-+				*src = (const void *)s;
-+				return wn0;
-+			}
-+			if (!*s) break;
-+			c = *s++;
-+			*ws++ = CODEUNIT(c);
-+			wn--;
-+		}
-+		*ws = 0;
-+		*src = 0;
-+		return wn0-wn;
-+	}
-+
- 	if (!ws) for (;;) {
- 		if (*s-1u < 0x7f && (uintptr_t)s%4 == 0) {
- 			while (!(( *(uint32_t*)s | *(uint32_t*)s-0x01010101) & 0x80808080)) {
-diff --git a/src/multibyte/mbtowc.c b/src/multibyte/mbtowc.c
-index 803d221..71a9506 100644
---- a/src/multibyte/mbtowc.c
-+++ b/src/multibyte/mbtowc.c
-@@ -4,6 +4,7 @@
-  * unnecessary.
-  */
- 
-+#include <stdlib.h>
- #include <wchar.h>
- #include <errno.h>
- #include "internal.h"
-@@ -19,6 +20,7 @@ int mbtowc(wchar_t *restrict wc, const char *restrict src, size_t n)
- 	if (!wc) wc = &dummy;
- 
- 	if (*s < 0x80) return !!(*wc = *s);
-+	if (MB_CUR_MAX==1) return (*wc = CODEUNIT(*s)), 1;
- 	if (*s-SA > SB-SA) goto ilseq;
- 	c = bittab[*s++-SA];
- 
-diff --git a/src/multibyte/wcrtomb.c b/src/multibyte/wcrtomb.c
-index 59f733d..ddc37a5 100644
---- a/src/multibyte/wcrtomb.c
-+++ b/src/multibyte/wcrtomb.c
-@@ -4,8 +4,10 @@
-  * unnecessary.
-  */
- 
-+#include <stdlib.h>
- #include <wchar.h>
- #include <errno.h>
-+#include "internal.h"
- 
- size_t wcrtomb(char *restrict s, wchar_t wc, mbstate_t *restrict st)
- {
-@@ -13,6 +15,13 @@ size_t wcrtomb(char *restrict s, wchar_t wc, mbstate_t *restrict st)
- 	if ((unsigned)wc < 0x80) {
- 		*s = wc;
- 		return 1;
-+	} else if (MB_CUR_MAX == 1) {
-+		if (!IS_CODEUNIT(wc)) {
-+			errno = EILSEQ;
-+			return -1;
-+		}
-+		*s = wc;
-+		return 1;
- 	} else if ((unsigned)wc < 0x800) {
- 		*s++ = 0xc0 | (wc>>6);
- 		*s = 0x80 | (wc&0x3f);
-diff --git a/src/multibyte/wctob.c b/src/multibyte/wctob.c
-index d6353ee..4aeda6a 100644
---- a/src/multibyte/wctob.c
-+++ b/src/multibyte/wctob.c
-@@ -1,8 +1,10 @@
--#include <stdio.h>
- #include <wchar.h>
-+#include <stdlib.h>
-+#include "internal.h"
- 
- int wctob(wint_t c)
- {
- 	if (c < 128U) return c;
-+	if (MB_CUR_MAX==1 && IS_CODEUNIT(c)) return (unsigned char)c;
- 	return EOF;
- }
-diff --git a/src/passwd/nscd_query.c b/src/passwd/nscd_query.c
-index 69a7815..d38e371 100644
---- a/src/passwd/nscd_query.c
-+++ b/src/passwd/nscd_query.c
-@@ -32,6 +32,7 @@ FILE *__nscd_query(int32_t req, const char *key, int32_t *buf, size_t len, int *
- 		},
- 		.msg_iovlen = 2
- 	};
-+	int errno_save = errno;
- 
- 	*swap = 0;
- retry:
-@@ -50,11 +51,14 @@ retry:
- 		return f;
- 
- 	if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
--		/* If there isn't a running nscd we return -1 to indicate that
--		 * that is precisely what happened
--		 */
--		if (errno == EACCES || errno == ECONNREFUSED || errno == ENOENT)
-+		/* If there isn't a running nscd we simulate a "not found"
-+		 * result and the caller is responsible for calling
-+		 * fclose on the (unconnected) socket. The value of
-+		 * errno must be left unchanged in this case.  */
-+		if (errno == EACCES || errno == ECONNREFUSED || errno == ENOENT) {
-+			errno = errno_save;
- 			return f;
-+		}
- 		goto error;
- 	}
- 
-diff --git a/src/process/sh/vfork.s b/src/process/sh/vfork.s
-new file mode 100644
-index 0000000..48cc939
---- /dev/null
-+++ b/src/process/sh/vfork.s
-@@ -0,0 +1,23 @@
-+.global __vfork
-+.weak vfork
-+.type __vfork,@function
-+.type vfork,@function
-+__vfork:
-+vfork:
-+	mov #95, r3
-+	add r3, r3
-+
-+	trapa #31
-+	or    r0, r0
-+	or    r0, r0
-+	or    r0, r0
-+	or    r0, r0
-+	or    r0, r0
-+
-+	mov r0, r4
-+	mov.l 1f, r0
-+2:	braf r0
-+	 nop
-+	.align 2
-+	.hidden __syscall_ret
-+1:	.long __syscall_ret@PLT-(2b+4-.)
-diff --git a/src/regex/fnmatch.c b/src/regex/fnmatch.c
-index 7f6b65f..978fff8 100644
---- a/src/regex/fnmatch.c
-+++ b/src/regex/fnmatch.c
-@@ -18,6 +18,7 @@
- #include <stdlib.h>
- #include <wchar.h>
- #include <wctype.h>
-+#include "locale_impl.h"
- 
- #define END 0
- #define UNMATCHABLE -2
-@@ -229,7 +230,7 @@ static int fnmatch_internal(const char *pat, size_t m, const char *str, size_t n
- 	 * On illegal sequences we may get it wrong, but in that case
- 	 * we necessarily have a matching failure anyway. */
- 	for (s=endstr; s>str && tailcnt; tailcnt--) {
--		if (s[-1] < 128U) s--;
-+		if (s[-1] < 128U || MB_CUR_MAX==1) s--;
- 		else while ((unsigned char)*--s-0x80U<0x40 && s>str);
- 	}
- 	if (tailcnt) return FNM_NOMATCH;
-diff --git a/src/signal/sh/restore.s b/src/signal/sh/restore.s
-index ab26034..eaedcdf 100644
---- a/src/signal/sh/restore.s
-+++ b/src/signal/sh/restore.s
-@@ -2,7 +2,7 @@
- .type   __restore, @function
- __restore:
- 	mov   #119, r3  !__NR_sigreturn
--	trapa #16
-+	trapa #31
- 
- 	or    r0, r0
- 	or    r0, r0
-@@ -15,7 +15,7 @@ __restore:
- __restore_rt:
- 	mov   #100, r3  !__NR_rt_sigreturn
- 	add   #73, r3
--	trapa #16
-+	trapa #31
- 
- 	or    r0, r0
- 	or    r0, r0
-diff --git a/src/stdio/__fdopen.c b/src/stdio/__fdopen.c
-index ef8f47d..8d6ce81 100644
---- a/src/stdio/__fdopen.c
-+++ b/src/stdio/__fdopen.c
-@@ -54,13 +54,7 @@ FILE *__fdopen(int fd, const char *mode)
- 	if (!libc.threaded) f->lock = -1;
- 
- 	/* Add new FILE to open file list */
--	OFLLOCK();
--	f->next = libc.ofl_head;
--	if (libc.ofl_head) libc.ofl_head->prev = f;
--	libc.ofl_head = f;
--	OFLUNLOCK();
--
--	return f;
-+	return __ofl_add(f);
- }
- 
- weak_alias(__fdopen, fdopen);
-diff --git a/src/stdio/__stdio_exit.c b/src/stdio/__stdio_exit.c
-index 716e5f7..191b445 100644
---- a/src/stdio/__stdio_exit.c
-+++ b/src/stdio/__stdio_exit.c
-@@ -16,8 +16,7 @@ static void close_file(FILE *f)
- void __stdio_exit(void)
- {
- 	FILE *f;
--	OFLLOCK();
--	for (f=libc.ofl_head; f; f=f->next) close_file(f);
-+	for (f=*__ofl_lock(); f; f=f->next) close_file(f);
- 	close_file(__stdin_used);
- 	close_file(__stdout_used);
- }
-diff --git a/src/stdio/__stdio_read.c b/src/stdio/__stdio_read.c
-index 5947344..f8fa6d3 100644
---- a/src/stdio/__stdio_read.c
-+++ b/src/stdio/__stdio_read.c
-@@ -1,12 +1,5 @@
- #include "stdio_impl.h"
- #include <sys/uio.h>
--#include <pthread.h>
--
--static void cleanup(void *p)
--{
--	FILE *f = p;
--	if (!f->lockcount) __unlockfile(f);
--}
- 
- size_t __stdio_read(FILE *f, unsigned char *buf, size_t len)
- {
-@@ -16,9 +9,7 @@ size_t __stdio_read(FILE *f, unsigned char *buf, size_t len)
- 	};
- 	ssize_t cnt;
- 
--	pthread_cleanup_push(cleanup, f);
--	cnt = syscall_cp(SYS_readv, f->fd, iov, 2);
--	pthread_cleanup_pop(0);
-+	cnt = syscall(SYS_readv, f->fd, iov, 2);
- 	if (cnt <= 0) {
- 		f->flags |= F_EOF ^ ((F_ERR^F_EOF) & cnt);
- 		return cnt;
-diff --git a/src/stdio/__stdio_write.c b/src/stdio/__stdio_write.c
-index 8c89389..d2d8947 100644
---- a/src/stdio/__stdio_write.c
-+++ b/src/stdio/__stdio_write.c
-@@ -1,12 +1,5 @@
- #include "stdio_impl.h"
- #include <sys/uio.h>
--#include <pthread.h>
--
--static void cleanup(void *p)
--{
--	FILE *f = p;
--	if (!f->lockcount) __unlockfile(f);
--}
- 
- size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
- {
-@@ -19,9 +12,7 @@ size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
- 	int iovcnt = 2;
- 	ssize_t cnt;
- 	for (;;) {
--		pthread_cleanup_push(cleanup, f);
--		cnt = syscall_cp(SYS_writev, f->fd, iov, iovcnt);
--		pthread_cleanup_pop(0);
-+		cnt = syscall(SYS_writev, f->fd, iov, iovcnt);
- 		if (cnt == rem) {
- 			f->wend = f->buf + f->buf_size;
- 			f->wpos = f->wbase = f->buf;
-@@ -34,11 +25,8 @@ size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
- 		}
- 		rem -= cnt;
- 		if (cnt > iov[0].iov_len) {
--			f->wpos = f->wbase = f->buf;
- 			cnt -= iov[0].iov_len;
- 			iov++; iovcnt--;
--		} else if (iovcnt == 2) {
--			f->wbase += cnt;
- 		}
- 		iov[0].iov_base = (char *)iov[0].iov_base + cnt;
- 		iov[0].iov_len -= cnt;
-diff --git a/src/stdio/fclose.c b/src/stdio/fclose.c
-index 317b3c9..839d88a 100644
---- a/src/stdio/fclose.c
-+++ b/src/stdio/fclose.c
-@@ -14,11 +14,11 @@ int fclose(FILE *f)
- 	__unlist_locked_file(f);
- 
- 	if (!(perm = f->flags & F_PERM)) {
--		OFLLOCK();
-+		FILE **head = __ofl_lock();
- 		if (f->prev) f->prev->next = f->next;
- 		if (f->next) f->next->prev = f->prev;
--		if (libc.ofl_head == f) libc.ofl_head = f->next;
--		OFLUNLOCK();
-+		if (*head == f) *head = f->next;
-+		__ofl_unlock();
- 	}
- 
- 	r = fflush(f);
-diff --git a/src/stdio/fflush.c b/src/stdio/fflush.c
-index 7bf862a..3f462c8 100644
---- a/src/stdio/fflush.c
-+++ b/src/stdio/fflush.c
-@@ -35,13 +35,12 @@ int fflush(FILE *f)
- 
- 	r = __stdout_used ? fflush(__stdout_used) : 0;
- 
--	OFLLOCK();
--	for (f=libc.ofl_head; f; f=f->next) {
-+	for (f=*__ofl_lock(); f; f=f->next) {
- 		FLOCK(f);
- 		if (f->wpos > f->wbase) r |= __fflush_unlocked(f);
- 		FUNLOCK(f);
- 	}
--	OFLUNLOCK();
-+	__ofl_unlock();
- 	
- 	return r;
- }
-diff --git a/src/stdio/fgetwc.c b/src/stdio/fgetwc.c
-index 8626d54..e455cfe 100644
---- a/src/stdio/fgetwc.c
-+++ b/src/stdio/fgetwc.c
-@@ -1,8 +1,9 @@
- #include "stdio_impl.h"
-+#include "locale_impl.h"
- #include <wchar.h>
- #include <errno.h>
- 
--wint_t __fgetwc_unlocked(FILE *f)
-+static wint_t __fgetwc_unlocked_internal(FILE *f)
- {
- 	mbstate_t st = { 0 };
- 	wchar_t wc;
-@@ -10,8 +11,6 @@ wint_t __fgetwc_unlocked(FILE *f)
- 	unsigned char b;
- 	size_t l;
- 
--	f->mode |= f->mode+1;
--
- 	/* Convert character from buffer if possible */
- 	if (f->rpos < f->rend) {
- 		l = mbrtowc(&wc, (void *)f->rpos, f->rend - f->rpos, &st);
-@@ -39,6 +38,16 @@ wint_t __fgetwc_unlocked(FILE *f)
- 	return wc;
- }
- 
-+wint_t __fgetwc_unlocked(FILE *f)
-+{
-+	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
-+	if (f->mode <= 0) fwide(f, 1);
-+	*ploc = f->locale;
-+	wchar_t wc = __fgetwc_unlocked_internal(f);
-+	*ploc = loc;
-+	return wc;
-+}
-+
- wint_t fgetwc(FILE *f)
- {
- 	wint_t c;
-diff --git a/src/stdio/fmemopen.c b/src/stdio/fmemopen.c
-index d784960..7c193a5 100644
---- a/src/stdio/fmemopen.c
-+++ b/src/stdio/fmemopen.c
-@@ -110,11 +110,5 @@ FILE *fmemopen(void *restrict buf, size_t size, const char *restrict mode)
- 
- 	if (!libc.threaded) f->lock = -1;
- 
--	OFLLOCK();
--	f->next = libc.ofl_head;
--	if (libc.ofl_head) libc.ofl_head->prev = f;
--	libc.ofl_head = f;
--	OFLUNLOCK();
--
--	return f;
-+	return __ofl_add(f);
- }
-diff --git a/src/stdio/fopen.c b/src/stdio/fopen.c
-index 07bdb6e..252f082 100644
---- a/src/stdio/fopen.c
-+++ b/src/stdio/fopen.c
-@@ -18,7 +18,7 @@ FILE *fopen(const char *restrict filename, const char *restrict mode)
- 	/* Compute the flags to pass to open() */
- 	flags = __fmodeflags(mode);
- 
--	fd = sys_open_cp(filename, flags, 0666);
-+	fd = sys_open(filename, flags, 0666);
- 	if (fd < 0) return 0;
- 	if (flags & O_CLOEXEC)
- 		__syscall(SYS_fcntl, fd, F_SETFD, FD_CLOEXEC);
-diff --git a/src/stdio/fputwc.c b/src/stdio/fputwc.c
-index 7b621dd..789fe9c 100644
---- a/src/stdio/fputwc.c
-+++ b/src/stdio/fputwc.c
-@@ -1,4 +1,5 @@
- #include "stdio_impl.h"
-+#include "locale_impl.h"
- #include <wchar.h>
- #include <limits.h>
- #include <ctype.h>
-@@ -7,8 +8,10 @@ wint_t __fputwc_unlocked(wchar_t c, FILE *f)
- {
- 	char mbc[MB_LEN_MAX];
- 	int l;
-+	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
- 
--	f->mode |= f->mode+1;
-+	if (f->mode <= 0) fwide(f, 1);
-+	*ploc = f->locale;
- 
- 	if (isascii(c)) {
- 		c = putc_unlocked(c, f);
-@@ -20,6 +23,8 @@ wint_t __fputwc_unlocked(wchar_t c, FILE *f)
- 		l = wctomb(mbc, c);
- 		if (l < 0 || __fwritex((void *)mbc, l, f) < l) c = WEOF;
- 	}
-+	if (c==WEOF) f->flags |= F_ERR;
-+	*ploc = loc;
- 	return c;
- }
- 
-diff --git a/src/stdio/fputws.c b/src/stdio/fputws.c
-index 5723cbc..0ed02f1 100644
---- a/src/stdio/fputws.c
-+++ b/src/stdio/fputws.c
-@@ -1,23 +1,28 @@
- #include "stdio_impl.h"
-+#include "locale_impl.h"
- #include <wchar.h>
- 
- int fputws(const wchar_t *restrict ws, FILE *restrict f)
- {
- 	unsigned char buf[BUFSIZ];
- 	size_t l=0;
-+	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
- 
- 	FLOCK(f);
- 
--	f->mode |= f->mode+1;
-+	fwide(f, 1);
-+	*ploc = f->locale;
- 
- 	while (ws && (l = wcsrtombs((void *)buf, (void*)&ws, sizeof buf, 0))+1 > 1)
- 		if (__fwritex(buf, l, f) < l) {
- 			FUNLOCK(f);
-+			*ploc = loc;
- 			return -1;
- 		}
- 
- 	FUNLOCK(f);
- 
-+	*ploc = loc;
- 	return l; /* 0 or -1 */
- }
- 
-diff --git a/src/stdio/fwide.c b/src/stdio/fwide.c
-index 8088e7a..8410b15 100644
---- a/src/stdio/fwide.c
-+++ b/src/stdio/fwide.c
-@@ -1,13 +1,14 @@
--#include <wchar.h>
- #include "stdio_impl.h"
--
--#define SH (8*sizeof(int)-1)
--#define NORMALIZE(x) ((x)>>SH | -((-(x))>>SH))
-+#include "locale_impl.h"
- 
- int fwide(FILE *f, int mode)
- {
- 	FLOCK(f);
--	if (!f->mode) f->mode = NORMALIZE(mode);
-+	if (mode) {
-+		if (!f->locale) f->locale = MB_CUR_MAX==1
-+			? C_LOCALE : UTF8_LOCALE;
-+		if (!f->mode) f->mode = mode>0 ? 1 : -1;
-+	}
- 	mode = f->mode;
- 	FUNLOCK(f);
- 	return mode;
-diff --git a/src/stdio/ofl.c b/src/stdio/ofl.c
-new file mode 100644
-index 0000000..b143999
---- /dev/null
-+++ b/src/stdio/ofl.c
-@@ -0,0 +1,16 @@
-+#include "stdio_impl.h"
-+#include "libc.h"
-+
-+static FILE *ofl_head;
-+static volatile int ofl_lock[2];
-+
-+FILE **__ofl_lock()
-+{
-+	LOCK(ofl_lock);
-+	return &ofl_head;
-+}
-+
-+void __ofl_unlock()
-+{
-+	UNLOCK(ofl_lock);
-+}
-diff --git a/src/stdio/ofl_add.c b/src/stdio/ofl_add.c
-new file mode 100644
-index 0000000..d7de9f1
---- /dev/null
-+++ b/src/stdio/ofl_add.c
-@@ -0,0 +1,11 @@
-+#include "stdio_impl.h"
-+
-+FILE *__ofl_add(FILE *f)
-+{
-+	FILE **head = __ofl_lock();
-+	f->next = *head;
-+	if (*head) (*head)->prev = f;
-+	*head = f;
-+	__ofl_unlock();
-+	return f;
-+}
-diff --git a/src/stdio/open_memstream.c b/src/stdio/open_memstream.c
-index 9eafdfb..58504c9 100644
---- a/src/stdio/open_memstream.c
-+++ b/src/stdio/open_memstream.c
-@@ -79,11 +79,5 @@ FILE *open_memstream(char **bufp, size_t *sizep)
- 
- 	if (!libc.threaded) f->lock = -1;
- 
--	OFLLOCK();
--	f->next = libc.ofl_head;
--	if (libc.ofl_head) libc.ofl_head->prev = f;
--	libc.ofl_head = f;
--	OFLUNLOCK();
--
--	return f;
-+	return __ofl_add(f);
- }
-diff --git a/src/stdio/open_wmemstream.c b/src/stdio/open_wmemstream.c
-index 3537030..7ab2c64 100644
---- a/src/stdio/open_wmemstream.c
-+++ b/src/stdio/open_wmemstream.c
-@@ -81,11 +81,5 @@ FILE *open_wmemstream(wchar_t **bufp, size_t *sizep)
- 
- 	if (!libc.threaded) f->lock = -1;
- 
--	OFLLOCK();
--	f->next = libc.ofl_head;
--	if (libc.ofl_head) libc.ofl_head->prev = f;
--	libc.ofl_head = f;
--	OFLUNLOCK();
--
--	return f;
-+	return __ofl_add(f);
- }
-diff --git a/src/stdio/ungetwc.c b/src/stdio/ungetwc.c
-index 913f716..80d6e20 100644
---- a/src/stdio/ungetwc.c
-+++ b/src/stdio/ungetwc.c
-@@ -1,4 +1,5 @@
- #include "stdio_impl.h"
-+#include "locale_impl.h"
- #include <wchar.h>
- #include <limits.h>
- #include <ctype.h>
-@@ -8,21 +9,19 @@ wint_t ungetwc(wint_t c, FILE *f)
- {
- 	unsigned char mbc[MB_LEN_MAX];
- 	int l=1;
--
--	if (c == WEOF) return c;
--
--	/* Try conversion early so we can fail without locking if invalid */
--	if (!isascii(c) && (l = wctomb((void *)mbc, c)) < 0)
--		return WEOF;
-+	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
- 
- 	FLOCK(f);
- 
--	f->mode |= f->mode+1;
-+	if (f->mode <= 0) fwide(f, 1);
-+	*ploc = f->locale;
- 
- 	if (!f->rpos) __toread(f);
--	if (!f->rpos || f->rpos < f->buf - UNGET + l) {
-+	if (!f->rpos || f->rpos < f->buf - UNGET + l || c == WEOF ||
-+	    (!isascii(c) && (l = wctomb((void *)mbc, c)) < 0)) {
- 		FUNLOCK(f);
--		return EOF;
-+		*ploc = loc;
-+		return WEOF;
- 	}
- 
- 	if (isascii(c)) *--f->rpos = c;
-@@ -31,5 +30,6 @@ wint_t ungetwc(wint_t c, FILE *f)
- 	f->flags &= ~F_EOF;
- 
- 	FUNLOCK(f);
-+	*ploc = loc;
- 	return c;
- }
-diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
-index ebdff00..f06d5ae 100644
---- a/src/stdio/vfwprintf.c
-+++ b/src/stdio/vfwprintf.c
-@@ -293,7 +293,10 @@ static int wprintf_core(FILE *f, const wchar_t *fmt, va_list *ap, union arg *nl_
- 			if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
- 			l=w;
- 			continue;
-+		case 'm':
-+			arg.p = strerror(errno);
- 		case 's':
-+			if (!arg.p) arg.p = "(null)";
- 			bs = arg.p;
- 			if (p<0) p = INT_MAX;
- 			for (i=l=0; l<p && (i=mbtowc(&wc, bs, MB_LEN_MAX))>0; bs+=i, l++);
-@@ -356,7 +359,7 @@ int vfwprintf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
- 	}
- 
- 	FLOCK(f);
--	f->mode |= f->mode+1;
-+	fwide(f, 1);
- 	olderr = f->flags & F_ERR;
- 	f->flags &= ~F_ERR;
- 	ret = wprintf_core(f, fmt, &ap2, nl_arg, nl_type);
-diff --git a/src/stdio/vfwscanf.c b/src/stdio/vfwscanf.c
-index ac5c2c2..223aad4 100644
---- a/src/stdio/vfwscanf.c
-+++ b/src/stdio/vfwscanf.c
-@@ -104,7 +104,7 @@ int vfwscanf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
- 
- 	FLOCK(f);
- 
--	f->mode |= f->mode+1;
-+	fwide(f, 1);
- 
- 	for (p=fmt; *p; p++) {
- 
-diff --git a/src/string/strverscmp.c b/src/string/strverscmp.c
-index 6f37cc6..4daf276 100644
---- a/src/string/strverscmp.c
-+++ b/src/string/strverscmp.c
-@@ -2,40 +2,33 @@
- #include <ctype.h>
- #include <string.h>
- 
--int strverscmp(const char *l, const char *r)
-+int strverscmp(const char *l0, const char *r0)
- {
--	int haszero=1;
--	while (*l==*r) {
--		if (!*l) return 0;
-+	const unsigned char *l = (const void *)l0;
-+	const unsigned char *r = (const void *)r0;
-+	size_t i, dp, j;
-+	int z = 1;
- 
--		if (*l=='0') {
--			if (haszero==1) {
--				haszero=0;
--			}
--		} else if (isdigit(*l)) {
--			if (haszero==1) {
--				haszero=2;
--			}
--		} else {
--			haszero=1;
--		}
--		l++; r++;
-+	/* Find maximal matching prefix and track its maximal digit
-+	 * suffix and whether those digits are all zeros. */
-+	for (dp=i=0; l[i]==r[i]; i++) {
-+		int c = l[i];
-+		if (!c) return 0;
-+		if (!isdigit(c)) dp=i+1, z=1;
-+		else if (c!='0') z=0;
- 	}
--	if (haszero==1 && (*l=='0' || *r=='0')) {
--		haszero=0;
--	}
--	if ((isdigit(*l) && isdigit(*r) ) && haszero) {
--		size_t lenl=0, lenr=0;
--		while (isdigit(l[lenl]) ) lenl++;
--		while (isdigit(r[lenr]) ) lenr++;
--		if (lenl==lenr) {
--			return (*l -  *r);
--		} else if (lenl>lenr) {
--			return 1;
--		} else {
--			return -1;
--		}
--	} else {
--		return (*l -  *r);
-+
-+	if (l[dp]!='0' && r[dp]!='0') {
-+		/* If we're not looking at a digit sequence that began
-+		 * with a zero, longest digit string is greater. */
-+		for (j=i; isdigit(l[j]); j++)
-+			if (!isdigit(r[j])) return 1;
-+		if (isdigit(r[j])) return -1;
-+	} else if (z && dp<i && (isdigit(l[i]) || isdigit(r[i]))) {
-+		/* Otherwise, if common prefix of digit sequence is
-+		 * all zeros, digits order less than non-digits. */
-+		return (unsigned char)(l[i]-'0') - (unsigned char)(r[i]-'0');
- 	}
-+
-+	return l[i] - r[i];
- }
-diff --git a/src/thread/__tls_get_addr.c b/src/thread/__tls_get_addr.c
-index 3633396..84a413d 100644
---- a/src/thread/__tls_get_addr.c
-+++ b/src/thread/__tls_get_addr.c
-@@ -8,9 +8,9 @@ void *__tls_get_addr(size_t *v)
- 	__attribute__((__visibility__("hidden")))
- 	void *__tls_get_new(size_t *);
- 	if (v[0]<=(size_t)self->dtv[0])
--		return (char *)self->dtv[v[0]]+v[1];
-+		return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
- 	return __tls_get_new(v);
- #else
--	return (char *)self->dtv[1]+v[1];
-+	return (char *)self->dtv[1]+v[1]+DTP_OFFSET;
- #endif
- }
-diff --git a/src/thread/__unmapself.c b/src/thread/__unmapself.c
-index e69de29..1d3bee1 100644
---- a/src/thread/__unmapself.c
-+++ b/src/thread/__unmapself.c
-@@ -0,0 +1,29 @@
-+#include "pthread_impl.h"
-+#include "atomic.h"
-+#include "syscall.h"
-+/* cheat and reuse CRTJMP macro from dynlink code */
-+#include "dynlink.h"
-+
-+static volatile int lock;
-+static void *unmap_base;
-+static size_t unmap_size;
-+static char shared_stack[256];
-+
-+static void do_unmap()
-+{
-+	__syscall(SYS_munmap, unmap_base, unmap_size);
-+	__syscall(SYS_exit);
-+}
-+
-+void __unmapself(void *base, size_t size)
-+{
-+	int tid=__pthread_self()->tid;
-+	char *stack = shared_stack + sizeof shared_stack;
-+	stack -= (uintptr_t)stack % 16;
-+	while (lock || a_cas(&lock, 0, tid))
-+		a_spin();
-+	__syscall(SYS_set_tid_address, &lock);
-+	unmap_base = base;
-+	unmap_size = size;
-+	CRTJMP(do_unmap, stack);
-+}
-diff --git a/src/thread/mips/__unmapself.s b/src/thread/mips/__unmapself.s
-index 9aa0371..ba139dc 100644
---- a/src/thread/mips/__unmapself.s
-+++ b/src/thread/mips/__unmapself.s
-@@ -2,6 +2,7 @@
- .global __unmapself
- .type   __unmapself,@function
- __unmapself:
-+	move $sp, $25
- 	li $2, 4091
- 	syscall
- 	li $4, 0
-diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
-index de72818..e7df34a 100644
---- a/src/thread/pthread_create.c
-+++ b/src/thread/pthread_create.c
-@@ -191,8 +191,9 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
- 	if (!libc.can_do_threads) return ENOSYS;
- 	self = __pthread_self();
- 	if (!libc.threaded) {
--		for (FILE *f=libc.ofl_head; f; f=f->next)
-+		for (FILE *f=*__ofl_lock(); f; f=f->next)
- 			init_file_lock(f);
-+		__ofl_unlock();
- 		init_file_lock(__stdin_used);
- 		init_file_lock(__stdout_used);
- 		init_file_lock(__stderr_used);
-@@ -231,7 +232,8 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
- 		if (guard) {
- 			map = __mmap(0, size, PROT_NONE, MAP_PRIVATE|MAP_ANON, -1, 0);
- 			if (map == MAP_FAILED) goto fail;
--			if (__mprotect(map+guard, size-guard, PROT_READ|PROT_WRITE)) {
-+			if (__mprotect(map+guard, size-guard, PROT_READ|PROT_WRITE)
-+			    && errno != ENOSYS) {
- 				__munmap(map, size);
- 				goto fail;
- 			}
-diff --git a/src/thread/sh/__set_thread_area.s b/src/thread/sh/__set_thread_area.s
-index d9f1181..e69de29 100644
---- a/src/thread/sh/__set_thread_area.s
-+++ b/src/thread/sh/__set_thread_area.s
-@@ -1,6 +0,0 @@
--.global __set_thread_area
--.type   __set_thread_area, @function
--__set_thread_area:
--	ldc r4, gbr
--	rts
--	 mov #0, r0
-diff --git a/src/thread/sh/__unmapself.s b/src/thread/sh/__unmapself.s
-index b34c3c8..0161d53 100644
---- a/src/thread/sh/__unmapself.s
-+++ b/src/thread/sh/__unmapself.s
-@@ -1,9 +1,9 @@
- .text
--.global __unmapself
--.type   __unmapself, @function
--__unmapself:
-+.global __unmapself_sh_mmu
-+.type   __unmapself_sh_mmu, @function
-+__unmapself_sh_mmu:
- 	mov   #91, r3  ! SYS_munmap
--	trapa #18
-+	trapa #31
- 
- 	or    r0, r0
- 	or    r0, r0
-@@ -13,7 +13,7 @@ __unmapself:
- 
- 	mov   #1, r3   ! SYS_exit
- 	mov   #0, r4
--	trapa #17
-+	trapa #31
- 
- 	or    r0, r0
- 	or    r0, r0
-diff --git a/src/thread/sh/clone.s b/src/thread/sh/clone.s
-index d6c9184..f8ad845 100644
---- a/src/thread/sh/clone.s
-+++ b/src/thread/sh/clone.s
-@@ -17,7 +17,7 @@ __clone:
- 	mov.l @r15,     r6   ! r6 = ptid
- 	mov.l @(8,r15), r7   ! r7 = ctid
- 	mov.l @(4,r15), r0   ! r0 = tls
--	trapa #21
-+	trapa #31
- 
- 	or r0, r0
- 	or r0, r0
-@@ -38,7 +38,7 @@ __clone:
- 
- 	mov   #1, r3   ! __NR_exit
- 	mov   r0, r4
--	trapa #17
-+	trapa #31
- 
- 	or   r0, r0
- 	or   r0, r0
-diff --git a/src/thread/sh/syscall_cp.s b/src/thread/sh/syscall_cp.s
-index 6b28ddf..c3cafac 100644
---- a/src/thread/sh/syscall_cp.s
-+++ b/src/thread/sh/syscall_cp.s
-@@ -31,7 +31,7 @@ L1:	.long __cancel@PLT-(1b-.)
- 	mov.l @(4,r15), r7
- 	mov.l @(8,r15), r0
- 	mov.l @(12,r15), r1
--	trapa #22
-+	trapa #31
- 
- __cp_end:
- 	! work around hardware bug
-diff --git a/src/unistd/sh/pipe.s b/src/unistd/sh/pipe.s
-index d865ae3..46c4908 100644
---- a/src/unistd/sh/pipe.s
-+++ b/src/unistd/sh/pipe.s
-@@ -2,7 +2,7 @@
- .type   pipe, @function
- pipe:
- 	mov    #42, r3
--	trapa  #17
-+	trapa  #31
- 
- 	! work around hardware bug
- 	or     r0, r0