--- /dev/null
+--- a/arch/arm/atomic.h
++++ b/arch/arm/atomic.h
+@@ -22,37 +22,150 @@ static inline int a_ctz_64(uint64_t x)
+ return a_ctz_l(y);
+ }
+
+-#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+- || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+-
+ #if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+-#define MEM_BARRIER "dmb ish"
+-#else
+-#define MEM_BARRIER "mcr p15,0,r0,c7,c10,5"
+-#endif
+
+-static inline int __k_cas(int t, int s, volatile int *p)
++static inline void a_barrier()
+ {
+- int ret;
+- __asm__(
+- " " MEM_BARRIER "\n"
++ __asm__ __volatile__("dmb ish");
++}
++
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ int old;
++ __asm__ __volatile__(
++ " dmb ish\n"
+ "1: ldrex %0,%3\n"
+- " subs %0,%0,%1\n"
+-#ifdef __thumb__
+- " itt eq\n"
+-#endif
+- " strexeq %0,%2,%3\n"
+- " teqeq %0,#1\n"
+- " beq 1b\n"
+- " " MEM_BARRIER "\n"
+- : "=&r"(ret)
++ " cmp %0,%1\n"
++ " bne 1f\n"
++ " strex %0,%2,%3\n"
++ " cmp %0, #0\n"
++ " bne 1b\n"
++ " mov %0, %1\n"
++ "1: dmb ish\n"
++ : "=&r"(old)
+ : "r"(t), "r"(s), "Q"(*p)
+ : "memory", "cc" );
+- return ret;
++ return old;
++}
++
++static inline int a_swap(volatile int *x, int v)
++{
++ int old, tmp;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%3\n"
++ " strex %1,%2,%3\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(old), "=&r"(tmp)
++ : "r"(v), "Q"(*x)
++ : "memory", "cc" );
++ return old;
++}
++
++static inline int a_fetch_add(volatile int *x, int v)
++{
++ int old, tmp;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%3\n"
++ " add %0,%0,%2\n"
++ " strex %1,%0,%3\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(old), "=&r"(tmp)
++ : "r"(v), "Q"(*x)
++ : "memory", "cc" );
++ return old-v;
++}
++
++static inline void a_inc(volatile int *x)
++{
++ int tmp, tmp2;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%2\n"
++ " add %0,%0,#1\n"
++ " strex %1,%0,%2\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(tmp), "=&r"(tmp2)
++ : "Q"(*x)
++ : "memory", "cc" );
++}
++
++static inline void a_dec(volatile int *x)
++{
++ int tmp, tmp2;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%2\n"
++ " sub %0,%0,#1\n"
++ " strex %1,%0,%2\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(tmp), "=&r"(tmp2)
++ : "Q"(*x)
++ : "memory", "cc" );
++}
++
++static inline void a_and(volatile int *x, int v)
++{
++ int tmp, tmp2;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%3\n"
++ " and %0,%0,%2\n"
++ " strex %1,%0,%3\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(tmp), "=&r"(tmp2)
++ : "r"(v), "Q"(*x)
++ : "memory", "cc" );
++}
++
++static inline void a_or(volatile int *x, int v)
++{
++ int tmp, tmp2;
++ __asm__ __volatile__(
++ " dmb ish\n"
++ "1: ldrex %0,%3\n"
++ " orr %0,%0,%2\n"
++ " strex %1,%0,%3\n"
++ " cmp %1, #0\n"
++ " bne 1b\n"
++ " dmb ish\n"
++ : "=&r"(tmp), "=&r"(tmp2)
++ : "r"(v), "Q"(*x)
++ : "memory", "cc" );
++}
++
++static inline void a_store(volatile int *p, int x)
++{
++ __asm__ __volatile__(
++ " dmb ish\n"
++ " str %1,%0\n"
++ " dmb ish\n"
++ : "=m"(*p)
++ : "r"(x)
++ : "memory", "cc" );
+ }
++
+ #else
+-#define __k_cas ((int (*)(int, int, volatile int *))0xffff0fc0)
+-#endif
++
++int __a_cas(int, int, volatile int *) __attribute__((__visibility__("hidden")));
++#define __k_cas __a_cas
++
++static inline void a_barrier()
++{
++ __asm__ __volatile__("bl __a_barrier"
++ : : : "memory", "cc", "ip", "lr" );
++}
+
+ static inline int a_cas(volatile int *p, int t, int s)
+ {
+@@ -65,11 +178,6 @@ static inline int a_cas(volatile int *p,
+ }
+ }
+
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+ static inline int a_swap(volatile int *x, int v)
+ {
+ int old;
+@@ -98,19 +206,9 @@ static inline void a_dec(volatile int *x
+
+ static inline void a_store(volatile int *p, int x)
+ {
+- while (__k_cas(*p, x, p));
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- __k_cas(0, 0, &(int){0});
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
++ a_barrier();
++ *p = x;
++ a_barrier();
+ }
+
+ static inline void a_and(volatile int *p, int v)
+@@ -127,6 +225,20 @@ static inline void a_or(volatile int *p,
+ while (__k_cas(old, old|v, p));
+ }
+
++#endif
++
++static inline void *a_cas_p(volatile void *p, void *t, void *s)
++{
++ return (void *)a_cas(p, (int)t, (int)s);
++}
++
++#define a_spin a_barrier
++
++static inline void a_crash()
++{
++ *(volatile char *)0=0;
++}
++
+ static inline void a_or_l(volatile void *p, long v)
+ {
+ a_or(p, v);
+--- a/arch/arm/bits/alltypes.h.in
++++ b/arch/arm/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF unsigned wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/arm/bits/syscall.h
++++ b/arch/arm/bits/syscall.h
+@@ -339,7 +339,13 @@
+ #define __NR_seccomp 383
+ #define __NR_getrandom 384
+ #define __NR_memfd_create 385
++#define __NR_bpf 386
+
++#define __ARM_NR_breakpoint 0x0f0001
++#define __ARM_NR_cacheflush 0x0f0002
++#define __ARM_NR_usr26 0x0f0003
++#define __ARM_NR_usr32 0x0f0004
++#define __ARM_NR_set_tls 0x0f0005
+
+ /* Repeated with SYS_ prefix */
+
+@@ -684,3 +690,4 @@
+ #define SYS_seccomp 383
+ #define SYS_getrandom 384
+ #define SYS_memfd_create 385
++#define SYS_bpf 386
+--- a/arch/arm/pthread_arch.h
++++ b/arch/arm/pthread_arch.h
+@@ -10,9 +10,17 @@ static inline __attribute__((const)) pth
+
+ #else
+
+-typedef char *(*__ptr_func_t)(void) __attribute__((const));
+-#define __pthread_self() \
+- ((pthread_t)(((__ptr_func_t)0xffff0fe0)()+8-sizeof(struct pthread)))
++static inline __attribute__((const)) pthread_t __pthread_self()
++{
++#ifdef __clang__
++ char *p;
++ __asm__( "bl __a_gettp\n\tmov %0,r0" : "=r"(p) : : "cc", "r0", "lr" );
++#else
++ register char *p __asm__("r0");
++ __asm__( "bl __a_gettp" : "=r"(p) : : "cc", "lr" );
++#endif
++ return (void *)(p+8-sizeof(struct pthread));
++}
+
+ #endif
+
+--- /dev/null
++++ b/arch/arm/src/__set_thread_area.c
+@@ -0,0 +1,49 @@
++#include <stdint.h>
++#include <elf.h>
++#include "pthread_impl.h"
++#include "libc.h"
++
++#define HWCAP_TLS (1 << 15)
++
++extern const unsigned char __attribute__((__visibility__("hidden")))
++ __a_barrier_dummy[], __a_barrier_oldkuser[],
++ __a_barrier_v6[], __a_barrier_v7[],
++ __a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
++ __a_gettp_dummy[];
++
++#define __a_barrier_kuser 0xffff0fa0
++#define __a_cas_kuser 0xffff0fc0
++#define __a_gettp_kuser 0xffff0fe0
++
++extern uintptr_t __attribute__((__visibility__("hidden")))
++ __a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
++
++#define SET(op,ver) (__a_##op##_ptr = \
++ (uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
++
++int __set_thread_area(void *p)
++{
++#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
++ if (__hwcap & HWCAP_TLS) {
++ size_t *aux;
++ SET(cas, v7);
++ SET(barrier, v7);
++ for (aux=libc.auxv; *aux; aux+=2) {
++ if (*aux != AT_PLATFORM) continue;
++ const char *s = (void *)aux[1];
++ if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
++ SET(cas, v6);
++ SET(barrier, v6);
++ break;
++ }
++ } else {
++ int ver = *(int *)0xffff0ffc;
++ SET(gettp, kuser);
++ SET(cas, kuser);
++ SET(barrier, kuser);
++ if (ver < 2) a_crash();
++ if (ver < 3) SET(barrier, oldkuser);
++ }
++#endif
++ return __syscall(0xf0005, p);
++}
+--- /dev/null
++++ b/arch/arm/src/arm/atomics.s
+@@ -0,0 +1,116 @@
++.text
++
++.global __a_barrier
++.hidden __a_barrier
++.type __a_barrier,%function
++__a_barrier:
++ ldr ip,1f
++ ldr ip,[pc,ip]
++ add pc,pc,ip
++1: .word __a_barrier_ptr-1b
++.global __a_barrier_dummy
++.hidden __a_barrier_dummy
++__a_barrier_dummy:
++ tst lr,#1
++ moveq pc,lr
++ bx lr
++.global __a_barrier_oldkuser
++.hidden __a_barrier_oldkuser
++__a_barrier_oldkuser:
++ push {r0,r1,r2,r3,ip,lr}
++ mov r1,r0
++ mov r2,sp
++ ldr ip,=0xffff0fc0
++ mov lr,pc
++ mov pc,ip
++ pop {r0,r1,r2,r3,ip,lr}
++ tst lr,#1
++ moveq pc,lr
++ bx lr
++.global __a_barrier_v6
++.hidden __a_barrier_v6
++__a_barrier_v6:
++ mcr p15,0,r0,c7,c10,5
++ bx lr
++.global __a_barrier_v7
++.hidden __a_barrier_v7
++__a_barrier_v7:
++ .word 0xf57ff05b /* dmb ish */
++ bx lr
++
++.global __a_cas
++.hidden __a_cas
++.type __a_cas,%function
++__a_cas:
++ ldr ip,1f
++ ldr ip,[pc,ip]
++ add pc,pc,ip
++1: .word __a_cas_ptr-1b
++.global __a_cas_dummy
++.hidden __a_cas_dummy
++__a_cas_dummy:
++ mov r3,r0
++ ldr r0,[r2]
++ subs r0,r3,r0
++ streq r1,[r2]
++ tst lr,#1
++ moveq pc,lr
++ bx lr
++.global __a_cas_v6
++.hidden __a_cas_v6
++__a_cas_v6:
++ mov r3,r0
++ mcr p15,0,r0,c7,c10,5
++1: .word 0xe1920f9f /* ldrex r0,[r2] */
++ subs r0,r3,r0
++ .word 0x01820f91 /* strexeq r0,r1,[r2] */
++ teqeq r0,#1
++ beq 1b
++ mcr p15,0,r0,c7,c10,5
++ bx lr
++.global __a_cas_v7
++.hidden __a_cas_v7
++__a_cas_v7:
++ mov r3,r0
++ .word 0xf57ff05b /* dmb ish */
++1: .word 0xe1920f9f /* ldrex r0,[r2] */
++ subs r0,r3,r0
++ .word 0x01820f91 /* strexeq r0,r1,[r2] */
++ teqeq r0,#1
++ beq 1b
++ .word 0xf57ff05b /* dmb ish */
++ bx lr
++
++.global __aeabi_read_tp
++.type __aeabi_read_tp,%function
++__aeabi_read_tp:
++
++.global __a_gettp
++.hidden __a_gettp
++.type __a_gettp,%function
++__a_gettp:
++ ldr r0,1f
++ ldr r0,[pc,r0]
++ add pc,pc,r0
++1: .word __a_gettp_ptr-1b
++.global __a_gettp_dummy
++.hidden __a_gettp_dummy
++__a_gettp_dummy:
++ mrc p15,0,r0,c13,c0,3
++ bx lr
++
++.data
++.global __a_barrier_ptr
++.hidden __a_barrier_ptr
++__a_barrier_ptr:
++ .word 0
++
++.global __a_cas_ptr
++.hidden __a_cas_ptr
++__a_cas_ptr:
++ .word 0
++
++.global __a_gettp_ptr
++.hidden __a_gettp_ptr
++__a_gettp_ptr:
++ .word 0
+--- a/arch/arm/syscall_arch.h
++++ b/arch/arm/syscall_arch.h
+@@ -5,8 +5,6 @@
+
+ long (__syscall)(long, ...);
+
+-#ifndef __clang__
+-
+ #define __asm_syscall(...) do { \
+ __asm__ __volatile__ ( "svc 0" \
+ : "=r"(r0) : __VA_ARGS__ : "memory"); \
+@@ -54,41 +52,25 @@ static inline long __syscall4(long n, lo
+ __asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3));
+ }
+
+-#else
+-
+-static inline long __syscall0(long n)
+-{
+- return (__syscall)(n);
+-}
+-
+-static inline long __syscall1(long n, long a)
+-{
+- return (__syscall)(n, a);
+-}
+-
+-static inline long __syscall2(long n, long a, long b)
+-{
+- return (__syscall)(n, a, b);
+-}
+-
+-static inline long __syscall3(long n, long a, long b, long c)
+-{
+- return (__syscall)(n, a, b, c);
+-}
+-
+-static inline long __syscall4(long n, long a, long b, long c, long d)
+-{
+- return (__syscall)(n, a, b, c, d);
+-}
+-
+-#endif
+-
+ static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+ {
+- return (__syscall)(n, a, b, c, d, e);
++ register long r7 __asm__("r7") = n;
++ register long r0 __asm__("r0") = a;
++ register long r1 __asm__("r1") = b;
++ register long r2 __asm__("r2") = c;
++ register long r3 __asm__("r3") = d;
++ register long r4 __asm__("r4") = e;
++ __asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4));
+ }
+
+ static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+ {
+- return (__syscall)(n, a, b, c, d, e, f);
++ register long r7 __asm__("r7") = n;
++ register long r0 __asm__("r0") = a;
++ register long r1 __asm__("r1") = b;
++ register long r2 __asm__("r2") = c;
++ register long r3 __asm__("r3") = d;
++ register long r4 __asm__("r4") = e;
++ register long r5 __asm__("r5") = f;
++ __asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5));
+ }
+--- a/arch/i386/bits/alltypes.h.in
++++ b/arch/i386/bits/alltypes.h.in
+@@ -17,7 +17,6 @@ TYPEDEF __WCHAR_TYPE__ wchar_t;
+ TYPEDEF long wchar_t;
+ #endif
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ #if defined(__FLT_EVAL_METHOD__) && __FLT_EVAL_METHOD__ == 0
+ TYPEDEF float float_t;
+--- a/arch/i386/bits/syscall.h
++++ b/arch/i386/bits/syscall.h
+@@ -355,6 +355,7 @@
+ #define __NR_seccomp 354
+ #define __NR_getrandom 355
+ #define __NR_memfd_create 356
++#define __NR_bpf 357
+
+
+ /* Repeated with SYS_ prefix */
+@@ -716,3 +717,4 @@
+ #define SYS_seccomp 354
+ #define SYS_getrandom 355
+ #define SYS_memfd_create 356
++#define SYS_bpf 357
+--- a/arch/microblaze/bits/alltypes.h.in
++++ b/arch/microblaze/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF int wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/microblaze/bits/syscall.h
++++ b/arch/microblaze/bits/syscall.h
+@@ -381,6 +381,7 @@
+ #define __NR_seccomp 384
+ #define __NR_getrandom 385
+ #define __NR_memfd_create 386
++#define __NR_bpf 387
+
+ /* Repeated with SYS_ prefix */
+
+@@ -768,3 +769,4 @@
+ #define SYS_seccomp 384
+ #define SYS_getrandom 385
+ #define SYS_memfd_create 386
++#define SYS_bpf 387
+--- a/arch/microblaze/syscall_arch.h
++++ b/arch/microblaze/syscall_arch.h
+@@ -100,39 +100,7 @@ static inline long __syscall6(long n, lo
+
+ #else
+
+-static inline long __syscall0(long n)
+-{
+- return (__syscall)(n);
+-}
+-
+-static inline long __syscall1(long n, long a)
+-{
+- return (__syscall)(n, a);
+-}
+-
+-static inline long __syscall2(long n, long a, long b)
+-{
+- return (__syscall)(n, a, b);
+-}
+-
+-static inline long __syscall3(long n, long a, long b, long c)
+-{
+- return (__syscall)(n, a, b, c);
+-}
+-
+-static inline long __syscall4(long n, long a, long b, long c, long d)
+-{
+- return (__syscall)(n, a, b, c, d);
+-}
+-
+-static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+-{
+- return (__syscall)(n, a, b, c, d, e);
+-}
+-
+-static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+-{
+- return (__syscall)(n, a, b, c, d, e, f);
+-}
++#undef SYSCALL_NO_INLINE
++#define SYSCALL_NO_INLINE
+
+ #endif
+--- a/arch/mips/bits/alltypes.h.in
++++ b/arch/mips/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF int wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/mips/bits/syscall.h
++++ b/arch/mips/bits/syscall.h
+@@ -352,6 +352,7 @@
+ #define __NR_seccomp 4352
+ #define __NR_getrandom 4353
+ #define __NR_memfd_create 4354
++#define __NR_bpf 4355
+
+
+ /* Repeated with SYS_ prefix */
+@@ -709,3 +710,4 @@
+ #define SYS_seccomp 4352
+ #define SYS_getrandom 4353
+ #define SYS_memfd_create 4354
++#define SYS_bpf 4355
+--- a/arch/or1k/bits/alltypes.h.in
++++ b/arch/or1k/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF unsigned wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/or1k/bits/syscall.h
++++ b/arch/or1k/bits/syscall.h
+@@ -263,6 +263,7 @@
+ #define __NR_seccomp 277
+ #define __NR_getrandom 278
+ #define __NR_memfd_create 279
++#define __NR_bpf 280
+
+ #define SYS_io_setup __NR_io_setup
+ #define SYS_io_destroy __NR_io_destroy
+@@ -529,3 +530,4 @@
+ #define SYS_seccomp __NR_seccomp
+ #define SYS_getrandom __NR_getrandom
+ #define SYS_memfd_create __NR_memfd_create
++#define SYS_bpf __NR_bpf
+--- a/arch/or1k/syscall_arch.h
++++ b/arch/or1k/syscall_arch.h
+@@ -1,7 +1,7 @@
+ #define __SYSCALL_LL_E(x) \
+ ((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+ ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+-#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
++#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
+
+ #define SYSCALL_MMAP2_UNIT 8192ULL
+
+@@ -118,39 +118,7 @@ static inline long __syscall6(long n, lo
+
+ #else
+
+-static inline long __syscall0(long n)
+-{
+- return (__syscall)(n);
+-}
+-
+-static inline long __syscall1(long n, long a)
+-{
+- return (__syscall)(n, a);
+-}
+-
+-static inline long __syscall2(long n, long a, long b)
+-{
+- return (__syscall)(n, a, b);
+-}
+-
+-static inline long __syscall3(long n, long a, long b, long c)
+-{
+- return (__syscall)(n, a, b, c);
+-}
+-
+-static inline long __syscall4(long n, long a, long b, long c, long d)
+-{
+- return (__syscall)(n, a, b, c, d);
+-}
+-
+-static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+-{
+- return (__syscall)(n, a, b, c, d, e);
+-}
+-
+-static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+-{
+- return (__syscall)(n, a, b, c, d, e, f);
+-}
++#undef SYSCALL_NO_INLINE
++#define SYSCALL_NO_INLINE
+
+ #endif
+--- a/arch/powerpc/bits/alltypes.h.in
++++ b/arch/powerpc/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF long wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/powerpc/bits/syscall.h
++++ b/arch/powerpc/bits/syscall.h
+@@ -374,6 +374,7 @@
+ #define __NR_seccomp 358
+ #define __NR_getrandom 359
+ #define __NR_memfd_create 360
++#define __NR_bpf 361
+
+ /*
+ * repeated with SYS prefix
+@@ -754,3 +755,4 @@
+ #define SYS_seccomp 358
+ #define SYS_getrandom 359
+ #define SYS_memfd_create 360
++#define SYS_bpf 361
+--- a/arch/powerpc/syscall_arch.h
++++ b/arch/powerpc/syscall_arch.h
+@@ -3,39 +3,5 @@
+ ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+ #define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+
+-long (__syscall)(long, ...);
+-
+-static inline long __syscall0(long n)
+-{
+- return (__syscall)(n, 0, 0, 0, 0, 0, 0);
+-}
+-
+-static inline long __syscall1(long n, long a)
+-{
+- return (__syscall)(n, a, 0, 0, 0, 0, 0);
+-}
+-
+-static inline long __syscall2(long n, long a, long b)
+-{
+- return (__syscall)(n, a, b, 0, 0, 0, 0);
+-}
+-
+-static inline long __syscall3(long n, long a, long b, long c)
+-{
+- return (__syscall)(n, a, b, c, 0, 0, 0);
+-}
+-
+-static inline long __syscall4(long n, long a, long b, long c, long d)
+-{
+- return (__syscall)(n, a, b, c, d, 0, 0);
+-}
+-
+-static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+-{
+- return (__syscall)(n, a, b, c, d, e, 0);
+-}
+-
+-static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+-{
+- return (__syscall)(n, a, b, c, d, e, f);
+-}
++#undef SYSCALL_NO_INLINE
++#define SYSCALL_NO_INLINE
+--- a/arch/sh/bits/alltypes.h.in
++++ b/arch/sh/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF long wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ TYPEDEF float float_t;
+ TYPEDEF double double_t;
+--- a/arch/x32/bits/alltypes.h.in
++++ b/arch/x32/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF long wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ #if defined(__FLT_EVAL_METHOD__) && __FLT_EVAL_METHOD__ == 2
+ TYPEDEF long double float_t;
+--- a/arch/x32/bits/syscall.h
++++ b/arch/x32/bits/syscall.h
+@@ -277,6 +277,8 @@
+ #define __NR_seccomp (__X32_SYSCALL_BIT + 317)
+ #define __NR_getrandom (__X32_SYSCALL_BIT + 318)
+ #define __NR_memfd_create (__X32_SYSCALL_BIT + 319)
++#define __NR_kexec_file_load (__X32_SYSCALL_BIT + 320)
++#define __NR_bpf (__X32_SYSCALL_BIT + 321)
+
+ #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
+ #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
+@@ -604,6 +606,8 @@
+ #define SYS_seccomp __NR_seccomp
+ #define SYS_getrandom __NR_getrandom
+ #define SYS_memfd_create __NR_memfd_create
++#define SYS_kexec_file_load __NR_kexec_file_load
++#define SYS_bpf __NR_bpf
+
+ #define SYS_rt_sigaction __NR_rt_sigaction
+ #define SYS_rt_sigreturn __NR_rt_sigreturn
+--- a/arch/x86_64/bits/alltypes.h.in
++++ b/arch/x86_64/bits/alltypes.h.in
+@@ -8,7 +8,6 @@ TYPEDEF __builtin_va_list __isoc_va_list
+ #ifndef __cplusplus
+ TYPEDEF int wchar_t;
+ #endif
+-TYPEDEF unsigned wint_t;
+
+ #if defined(__FLT_EVAL_METHOD__) && __FLT_EVAL_METHOD__ == 2
+ TYPEDEF long double float_t;
+--- a/arch/x86_64/bits/syscall.h
++++ b/arch/x86_64/bits/syscall.h
+@@ -318,6 +318,8 @@
+ #define __NR_seccomp 317
+ #define __NR_getrandom 318
+ #define __NR_memfd_create 319
++#define __NR_kexec_file_load 320
++#define __NR_bpf 321
+
+
+ #undef __NR_fstatat
+@@ -654,6 +656,8 @@
+ #define SYS_seccomp 317
+ #define SYS_getrandom 318
+ #define SYS_memfd_create 319
++#define SYS_kexec_file_load 320
++#define SYS_bpf 321
+
+ #undef SYS_fstatat
+ #undef SYS_pread
+--- a/include/alltypes.h.in
++++ b/include/alltypes.h.in
+@@ -28,6 +28,7 @@ TYPEDEF _Int64 blkcnt_t;
+ TYPEDEF unsigned _Int64 fsblkcnt_t;
+ TYPEDEF unsigned _Int64 fsfilcnt_t;
+
++TYPEDEF unsigned wint_t;
+ TYPEDEF unsigned long wctype_t;
+
+ TYPEDEF void * timer_t;
+--- a/include/arpa/nameser.h
++++ b/include/arpa/nameser.h
+@@ -1,6 +1,11 @@
+ #ifndef _ARPA_NAMESER_H
+ #define _ARPA_NAMESER_H
+
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#include <stddef.h>
+ #include <stdint.h>
+
+ #define __NAMESER 19991006
+@@ -48,6 +53,8 @@ extern const struct _ns_flagdata _ns_fla
+ #define ns_msg_end(handle) ((handle)._eom + 0)
+ #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
+ #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
++#define ns_msg_getflag(handle, flag) \
++ (((handle)._flags & _ns_flagdata[flag].mask) >> _ns_flagdata[flag].shift)
+
+ typedef struct __ns_rr {
+ char name[NS_MAXDNAME];
+@@ -296,43 +303,20 @@ typedef enum __ns_cert_types {
+ #define NS_OPT_DNSSEC_OK 0x8000U
+ #define NS_OPT_NSID 3
+
+-#define NS_GET16(s, cp) do { \
+- register const unsigned char *t_cp = (const unsigned char *)(cp); \
+- (s) = ((uint16_t)t_cp[0] << 8) \
+- | ((uint16_t)t_cp[1]) \
+- ; \
+- (cp) += NS_INT16SZ; \
+-} while (0)
+-
+-#define NS_GET32(l, cp) do { \
+- register const unsigned char *t_cp = (const unsigned char *)(cp); \
+- (l) = ((uint32_t)t_cp[0] << 24) \
+- | ((uint32_t)t_cp[1] << 16) \
+- | ((uint32_t)t_cp[2] << 8) \
+- | ((uint32_t)t_cp[3]) \
+- ; \
+- (cp) += NS_INT32SZ; \
+-} while (0)
+-
+-#define NS_PUT16(s, cp) do { \
+- register uint16_t t_s = (uint16_t)(s); \
+- register unsigned char *t_cp = (unsigned char *)(cp); \
+- *t_cp++ = t_s >> 8; \
+- *t_cp = t_s; \
+- (cp) += NS_INT16SZ; \
+-} while (0)
+-
+-#define NS_PUT32(l, cp) do { \
+- register uint32_t t_l = (uint32_t)(l); \
+- register unsigned char *t_cp = (unsigned char *)(cp); \
+- *t_cp++ = t_l >> 24; \
+- *t_cp++ = t_l >> 16; \
+- *t_cp++ = t_l >> 8; \
+- *t_cp = t_l; \
+- (cp) += NS_INT32SZ; \
+-} while (0)
+-
+-
++#define NS_GET16(s, cp) (void)((s) = ns_get16(((cp)+=2)-2))
++#define NS_GET32(l, cp) (void)((l) = ns_get32(((cp)+=4)-4))
++#define NS_PUT16(s, cp) ns_put16((s), ((cp)+=2)-2)
++#define NS_PUT32(l, cp) ns_put32((l), ((cp)+=4)-4)
++
++unsigned ns_get16(const unsigned char *);
++unsigned long ns_get32(const unsigned char *);
++void ns_put16(unsigned, unsigned char *);
++void ns_put32(unsigned long, unsigned char *);
++
++int ns_initparse(const unsigned char *, int, ns_msg *);
++int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
++int ns_skiprr(const unsigned char *, const unsigned char *, ns_sect, int);
++int ns_name_uncompress(const unsigned char *, const unsigned char *, const unsigned char *, char *, size_t);
+
+
+ #define __BIND 19950621
+@@ -464,4 +448,8 @@ typedef struct {
+ #define PUTSHORT NS_PUT16
+ #define PUTLONG NS_PUT32
+
++#ifdef __cplusplus
++}
++#endif
++
+ #endif
+--- a/include/complex.h
++++ b/include/complex.h
+@@ -7,9 +7,9 @@ extern "C" {
+
+ #define complex _Complex
+ #ifdef __GNUC__
+-#define _Complex_I (__extension__ 1.0fi)
++#define _Complex_I (__extension__ (0.0f+1.0fi))
+ #else
+-#define _Complex_I 1.0fi
++#define _Complex_I (0.0f+1.0fi)
+ #endif
+ #define I _Complex_I
+
+@@ -101,8 +101,9 @@ double creal(double complex);
+ float crealf(float complex);
+ long double creall(long double complex);
+
++#ifndef __cplusplus
+ #define __CIMAG(x, t) \
+- ((union { _Complex t __z; t __xy[2]; }){(_Complex t)(x)}.__xy[1])
++ (+(union { _Complex t __z; t __xy[2]; }){(_Complex t)(x)}.__xy[1])
+
+ #define creal(x) ((double)(x))
+ #define crealf(x) ((float)(x))
+@@ -111,13 +112,20 @@ long double creall(long double complex);
+ #define cimag(x) __CIMAG(x, double)
+ #define cimagf(x) __CIMAG(x, float)
+ #define cimagl(x) __CIMAG(x, long double)
++#endif
+
+-#define __CMPLX(x, y, t) \
+- ((union { _Complex t __z; t __xy[2]; }){.__xy = {(x),(y)}}.__z)
+-
++#if __STDC_VERSION__ >= 201112L
++#if defined(_Imaginary_I)
++#define __CMPLX(x, y, t) ((t)(x) + _Imaginary_I*(t)(y)))
++#elif defined(__clang__)
++#define __CMPLX(x, y, t) (+(_Complex t){ (t)(x), (t)(y) })
++#else
++#define __CMPLX(x, y, t) (__builtin_complex((t)(x), (t)(y)))
++#endif
+ #define CMPLX(x, y) __CMPLX(x, y, double)
+ #define CMPLXF(x, y) __CMPLX(x, y, float)
+ #define CMPLXL(x, y) __CMPLX(x, y, long double)
++#endif
+
+ #ifdef __cplusplus
+ }
+--- a/include/pthread.h
++++ b/include/pthread.h
+@@ -84,7 +84,9 @@ __attribute__((const))
+ pthread_t pthread_self(void);
+
+ int pthread_equal(pthread_t, pthread_t);
++#ifndef __cplusplus
+ #define pthread_equal(x,y) ((x)==(y))
++#endif
+
+ int pthread_setcancelstate(int, int *);
+ int pthread_setcanceltype(int, int *);
+--- a/include/stdint.h
++++ b/include/stdint.h
+@@ -47,8 +47,8 @@ typedef uint64_t uint_least64_t;
+
+ #define UINT8_MAX (0xff)
+ #define UINT16_MAX (0xffff)
+-#define UINT32_MAX (0xffffffff)
+-#define UINT64_MAX (0xffffffffffffffff)
++#define UINT32_MAX (0xffffffffu)
++#define UINT64_MAX (0xffffffffffffffffu)
+
+ #define INT_FAST8_MIN INT8_MIN
+ #define INT_FAST64_MIN INT64_MIN
+@@ -78,7 +78,7 @@ typedef uint64_t uint_least64_t;
+ #define INTMAX_MAX INT64_MAX
+ #define UINTMAX_MAX UINT64_MAX
+
+-#define WINT_MIN 0
++#define WINT_MIN 0U
+ #define WINT_MAX UINT32_MAX
+
+ #if L'\0'-1 > 0
+--- a/include/sys/prctl.h
++++ b/include/sys/prctl.h
+@@ -5,6 +5,8 @@
+ extern "C" {
+ #endif
+
++#include <stdint.h>
++
+ #define PR_SET_PDEATHSIG 1
+ #define PR_GET_PDEATHSIG 2
+ #define PR_GET_DUMPABLE 3
+@@ -80,6 +82,25 @@ extern "C" {
+ #define PR_SET_MM_ENV_END 11
+ #define PR_SET_MM_AUXV 12
+ #define PR_SET_MM_EXE_FILE 13
++#define PR_SET_MM_MAP 14
++#define PR_SET_MM_MAP_SIZE 15
++
++struct prctl_mm_map {
++ uint64_t start_code;
++ uint64_t end_code;
++ uint64_t start_data;
++ uint64_t end_data;
++ uint64_t start_brk;
++ uint64_t brk;
++ uint64_t start_stack;
++ uint64_t arg_start;
++ uint64_t arg_end;
++ uint64_t env_start;
++ uint64_t env_end;
++ uint64_t *auxv;
++ uint32_t auxv_size;
++ uint32_t exe_fd;
++};
+
+ #define PR_SET_PTRACER 0x59616d61
+ #define PR_SET_PTRACER_ANY (-1UL)
+--- a/include/threads.h
++++ b/include/threads.h
+@@ -51,7 +51,9 @@ void thrd_yield(void);
+
+ thrd_t thrd_current(void);
+ int thrd_equal(thrd_t, thrd_t);
++#ifndef __cplusplus
+ #define thrd_equal(A, B) ((A) == (B))
++#endif
+
+ void call_once(once_flag *, void (*)(void));
+
+--- a/include/utmp.h
++++ b/include/utmp.h
+@@ -35,6 +35,8 @@ void setutent(void);
+
+ void updwtmp(const char *, const struct utmp *);
+
++int login_tty(int);
++
+ #define _PATH_UTMP "/dev/null/utmp"
+ #define _PATH_WTMP "/dev/null/wtmp"
+
+--- a/src/fcntl/open.c
++++ b/src/fcntl/open.c
+@@ -7,7 +7,7 @@ int open(const char *filename, int flags
+ {
+ mode_t mode = 0;
+
+- if (flags & O_CREAT) {
++ if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
+ va_list ap;
+ va_start(ap, flags);
+ mode = va_arg(ap, mode_t);
+--- a/src/fcntl/openat.c
++++ b/src/fcntl/openat.c
+@@ -5,11 +5,15 @@
+
+ int openat(int fd, const char *filename, int flags, ...)
+ {
+- mode_t mode;
+- va_list ap;
+- va_start(ap, flags);
+- mode = va_arg(ap, mode_t);
+- va_end(ap);
++ mode_t mode = 0;
++
++ if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
++ va_list ap;
++ va_start(ap, flags);
++ mode = va_arg(ap, mode_t);
++ va_end(ap);
++ }
++
+ return syscall_cp(SYS_openat, fd, filename, flags|O_LARGEFILE, mode);
+ }
+
+--- a/src/internal/libm.h
++++ b/src/internal/libm.h
+@@ -128,6 +128,18 @@ do {
+ (d) = __u.f; \
+ } while (0)
+
++#undef __CMPLX
++#undef CMPLX
++#undef CMPLXF
++#undef CMPLXL
++
++#define __CMPLX(x, y, t) \
++ ((union { _Complex t __z; t __xy[2]; }){.__xy = {(x),(y)}}.__z)
++
++#define CMPLX(x, y) __CMPLX(x, y, double)
++#define CMPLXF(x, y) __CMPLX(x, y, float)
++#define CMPLXL(x, y) __CMPLX(x, y, long double)
++
+ /* fdlibm kernel functions */
+
+ int __rem_pio2_large(double*,double*,int,int,int);
+--- a/src/internal/syscall.h
++++ b/src/internal/syscall.h
+@@ -24,12 +24,22 @@ long __syscall_ret(unsigned long), __sys
+ __syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t,
+ syscall_arg_t, syscall_arg_t, syscall_arg_t);
+
++#ifdef SYSCALL_NO_INLINE
++#define __syscall0(n) (__syscall)(n)
++#define __syscall1(n,a) (__syscall)(n,__scc(a))
++#define __syscall2(n,a,b) (__syscall)(n,__scc(a),__scc(b))
++#define __syscall3(n,a,b,c) (__syscall)(n,__scc(a),__scc(b),__scc(c))
++#define __syscall4(n,a,b,c,d) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d))
++#define __syscall5(n,a,b,c,d,e) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
++#define __syscall6(n,a,b,c,d,e,f) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
++#else
+ #define __syscall1(n,a) __syscall1(n,__scc(a))
+ #define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b))
+ #define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c))
+ #define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d))
+ #define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
+ #define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
++#endif
+ #define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g))
+
+ #define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n
+--- a/src/ldso/dynlink.c
++++ b/src/ldso/dynlink.c
+@@ -645,6 +645,8 @@ static void decode_dyn(struct dso *p)
+ p->hashtab = (void *)(p->base + dyn[DT_HASH]);
+ if (dyn[0]&(1<<DT_RPATH))
+ p->rpath_orig = (void *)(p->strings + dyn[DT_RPATH]);
++ if (dyn[0]&(1<<DT_RUNPATH))
++ p->rpath_orig = (void *)(p->strings + dyn[DT_RUNPATH]);
+ if (search_vec(p->dynv, dyn, DT_GNU_HASH))
+ p->ghashtab = (void *)(p->base + *dyn);
+ if (search_vec(p->dynv, dyn, DT_VERSYM))
+@@ -1126,6 +1128,7 @@ void *__dynlink(int argc, char **argv)
+ libc.secure = 1;
+ }
+ libc.page_size = aux[AT_PAGESZ];
++ libc.auxv = auxv;
+
+ /* If the dynamic linker was invoked as a program itself, AT_BASE
+ * will not be set. In that case, we assume the base address is
+--- a/src/math/__rem_pio2.c
++++ b/src/math/__rem_pio2.c
+@@ -19,6 +19,12 @@
+
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++
+ /*
+ * invpio2: 53 bits of 2/pi
+ * pio2_1: first 33 bit of pi/2
+@@ -29,6 +35,7 @@
+ * pio2_3t: pi/2 - (pio2_1+pio2_2+pio2_3)
+ */
+ static const double
++toint = 1.5/EPS,
+ invpio2 = 6.36619772367581382433e-01, /* 0x3FE45F30, 0x6DC9C883 */
+ pio2_1 = 1.57079632673412561417e+00, /* 0x3FF921FB, 0x54400000 */
+ pio2_1t = 6.07710050650619224932e-11, /* 0x3DD0B461, 0x1A626331 */
+@@ -41,8 +48,8 @@ pio2_3t = 8.47842766036889956997e-32; /*
+ int __rem_pio2(double x, double *y)
+ {
+ union {double f; uint64_t i;} u = {x};
+- double_t z,w,t,r;
+- double tx[3],ty[2],fn;
++ double_t z,w,t,r,fn;
++ double tx[3],ty[2];
+ uint32_t ix;
+ int sign, n, ex, ey, i;
+
+@@ -111,8 +118,7 @@ int __rem_pio2(double x, double *y)
+ if (ix < 0x413921fb) { /* |x| ~< 2^20*(pi/2), medium size */
+ medium:
+ /* rint(x/(pi/2)), Assume round-to-nearest. */
+- fn = x*invpio2 + 0x1.8p52;
+- fn = fn - 0x1.8p52;
++ fn = x*invpio2 + toint - toint;
+ n = (int32_t)fn;
+ r = x - fn*pio2_1;
+ w = fn*pio2_1t; /* 1st round, good to 85 bits */
+--- a/src/math/__rem_pio2f.c
++++ b/src/math/__rem_pio2f.c
+@@ -22,12 +22,19 @@
+
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++
+ /*
+ * invpio2: 53 bits of 2/pi
+ * pio2_1: first 25 bits of pi/2
+ * pio2_1t: pi/2 - pio2_1
+ */
+ static const double
++toint = 1.5/EPS,
+ invpio2 = 6.36619772367581382433e-01, /* 0x3FE45F30, 0x6DC9C883 */
+ pio2_1 = 1.57079631090164184570e+00, /* 0x3FF921FB, 0x50000000 */
+ pio2_1t = 1.58932547735281966916e-08; /* 0x3E5110b4, 0x611A6263 */
+@@ -35,7 +42,8 @@ pio2_1t = 1.58932547735281966916e-08; /*
+ int __rem_pio2f(float x, double *y)
+ {
+ union {float f; uint32_t i;} u = {x};
+- double tx[1],ty[1],fn;
++ double tx[1],ty[1];
++ double_t fn;
+ uint32_t ix;
+ int n, sign, e0;
+
+@@ -43,8 +51,7 @@ int __rem_pio2f(float x, double *y)
+ /* 25+53 bit pi is good enough for medium size */
+ if (ix < 0x4dc90fdb) { /* |x| ~< 2^28*(pi/2), medium size */
+ /* Use a specialized rint() to get fn. Assume round-to-nearest. */
+- fn = x*invpio2 + 0x1.8p52;
+- fn = fn - 0x1.8p52;
++ fn = x*invpio2 + toint - toint;
+ n = (int32_t)fn;
+ *y = x - fn*pio2_1 - fn*pio2_1t;
+ return n;
+--- a/src/math/__rem_pio2l.c
++++ b/src/math/__rem_pio2l.c
+@@ -20,10 +20,11 @@
+ * use __rem_pio2_large() for large x
+ */
+
++static const long double toint = 1.5/LDBL_EPSILON;
++
+ #if LDBL_MANT_DIG == 64
+ /* u ~< 0x1p25*pi/2 */
+ #define SMALL(u) (((u.i.se & 0x7fffU)<<16 | u.i.m>>48) < ((0x3fff + 25)<<16 | 0x921f>>1 | 0x8000))
+-#define TOINT 0x1.8p63
+ #define QUOBITS(x) ((uint32_t)(int32_t)x & 0x7fffffff)
+ #define ROUND1 22
+ #define ROUND2 61
+@@ -50,7 +51,6 @@ pio2_3t = -2.75299651904407171810e-37L;
+ #elif LDBL_MANT_DIG == 113
+ /* u ~< 0x1p45*pi/2 */
+ #define SMALL(u) (((u.i.se & 0x7fffU)<<16 | u.i.top) < ((0x3fff + 45)<<16 | 0x921f))
+-#define TOINT 0x1.8p112
+ #define QUOBITS(x) ((uint32_t)(int64_t)x & 0x7fffffff)
+ #define ROUND1 51
+ #define ROUND2 119
+@@ -77,7 +77,7 @@ int __rem_pio2l(long double x, long doub
+ ex = u.i.se & 0x7fff;
+ if (SMALL(u)) {
+ /* rint(x/(pi/2)), Assume round-to-nearest. */
+- fn = x*invpio2 + TOINT - TOINT;
++ fn = x*invpio2 + toint - toint;
+ n = QUOBITS(fn);
+ r = x-fn*pio2_1;
+ w = fn*pio2_1t; /* 1st round good to 102/180 bits (ld80/ld128) */
+--- a/src/math/ceil.c
++++ b/src/math/ceil.c
+@@ -1,5 +1,12 @@
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const double_t toint = 1/EPS;
++
+ double ceil(double x)
+ {
+ union {double f; uint64_t i;} u = {x};
+@@ -10,9 +17,9 @@ double ceil(double x)
+ return x;
+ /* y = int(x) - x, where int(x) is an integer neighbor of x */
+ if (u.i >> 63)
+- y = (double)(x - 0x1p52) + 0x1p52 - x;
++ y = x - toint + toint - x;
+ else
+- y = (double)(x + 0x1p52) - 0x1p52 - x;
++ y = x + toint - toint - x;
+ /* special case because of non-nearest rounding modes */
+ if (e <= 0x3ff-1) {
+ FORCE_EVAL(y);
+--- a/src/math/ceill.c
++++ b/src/math/ceill.c
+@@ -6,11 +6,9 @@ long double ceill(long double x)
+ return ceil(x);
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double ceill(long double x)
+ {
+ union ldshape u = {x};
+@@ -21,9 +19,9 @@ long double ceill(long double x)
+ return x;
+ /* y = int(x) - x, where int(x) is an integer neighbor of x */
+ if (u.i.se >> 15)
+- y = x - TOINT + TOINT - x;
++ y = x - toint + toint - x;
+ else
+- y = x + TOINT - TOINT - x;
++ y = x + toint - toint - x;
+ /* special case because of non-nearest rounding modes */
+ if (e <= 0x3fff-1) {
+ FORCE_EVAL(y);
+--- a/src/math/floor.c
++++ b/src/math/floor.c
+@@ -1,5 +1,12 @@
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const double_t toint = 1/EPS;
++
+ double floor(double x)
+ {
+ union {double f; uint64_t i;} u = {x};
+@@ -10,9 +17,9 @@ double floor(double x)
+ return x;
+ /* y = int(x) - x, where int(x) is an integer neighbor of x */
+ if (u.i >> 63)
+- y = (double)(x - 0x1p52) + 0x1p52 - x;
++ y = x - toint + toint - x;
+ else
+- y = (double)(x + 0x1p52) - 0x1p52 - x;
++ y = x + toint - toint - x;
+ /* special case because of non-nearest rounding modes */
+ if (e <= 0x3ff-1) {
+ FORCE_EVAL(y);
+--- a/src/math/floorl.c
++++ b/src/math/floorl.c
+@@ -6,11 +6,9 @@ long double floorl(long double x)
+ return floor(x);
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double floorl(long double x)
+ {
+ union ldshape u = {x};
+@@ -21,9 +19,9 @@ long double floorl(long double x)
+ return x;
+ /* y = int(x) - x, where int(x) is an integer neighbor of x */
+ if (u.i.se >> 15)
+- y = x - TOINT + TOINT - x;
++ y = x - toint + toint - x;
+ else
+- y = x + TOINT - TOINT - x;
++ y = x + toint - toint - x;
+ /* special case because of non-nearest rounding modes */
+ if (e <= 0x3fff-1) {
+ FORCE_EVAL(y);
+--- a/src/math/i386/fmod.s
++++ b/src/math/i386/fmod.s
+@@ -4,7 +4,7 @@ fmod:
+ fldl 12(%esp)
+ fldl 4(%esp)
+ 1: fprem
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/fmodf.s
++++ b/src/math/i386/fmodf.s
+@@ -4,7 +4,7 @@ fmodf:
+ flds 8(%esp)
+ flds 4(%esp)
+ 1: fprem
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/fmodl.s
++++ b/src/math/i386/fmodl.s
+@@ -4,7 +4,7 @@ fmodl:
+ fldt 16(%esp)
+ fldt 4(%esp)
+ 1: fprem
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/remainder.s
++++ b/src/math/i386/remainder.s
+@@ -7,7 +7,7 @@ drem:
+ fldl 12(%esp)
+ fldl 4(%esp)
+ 1: fprem1
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/remainderf.s
++++ b/src/math/i386/remainderf.s
+@@ -7,7 +7,7 @@ dremf:
+ flds 8(%esp)
+ flds 4(%esp)
+ 1: fprem1
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/remainderl.s
++++ b/src/math/i386/remainderl.s
+@@ -4,7 +4,7 @@ remainderl:
+ fldt 16(%esp)
+ fldt 4(%esp)
+ 1: fprem1
+- fstsw %ax
++ fnstsw %ax
+ sahf
+ jp 1b
+ fstp %st(1)
+--- a/src/math/i386/sqrt.s
++++ b/src/math/i386/sqrt.s
+@@ -2,7 +2,7 @@
+ .type sqrt,@function
+ sqrt: fldl 4(%esp)
+ fsqrt
+- fstsw %ax
++ fnstsw %ax
+ sub $12,%esp
+ fld %st(0)
+ fstpt (%esp)
+--- a/src/math/modfl.c
++++ b/src/math/modfl.c
+@@ -11,11 +11,9 @@ long double modfl(long double x, long do
+ return r;
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double modfl(long double x, long double *iptr)
+ {
+ union ldshape u = {x};
+@@ -40,7 +38,7 @@ long double modfl(long double x, long do
+
+ /* raises spurious inexact */
+ absx = s ? -x : x;
+- y = absx + TOINT - TOINT - absx;
++ y = absx + toint - toint - absx;
+ if (y == 0) {
+ *iptr = x;
+ return s ? -0.0 : 0.0;
+--- a/src/math/rint.c
++++ b/src/math/rint.c
+@@ -1,6 +1,14 @@
++#include <float.h>
+ #include <math.h>
+ #include <stdint.h>
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const double_t toint = 1/EPS;
++
+ double rint(double x)
+ {
+ union {double f; uint64_t i;} u = {x};
+@@ -11,9 +19,9 @@ double rint(double x)
+ if (e >= 0x3ff+52)
+ return x;
+ if (s)
+- y = (double)(x - 0x1p52) + 0x1p52;
++ y = x - toint + toint;
+ else
+- y = (double)(x + 0x1p52) - 0x1p52;
++ y = x + toint - toint;
+ if (y == 0)
+ return s ? -0.0 : 0;
+ return y;
+--- a/src/math/rintf.c
++++ b/src/math/rintf.c
+@@ -1,6 +1,16 @@
++#include <float.h>
+ #include <math.h>
+ #include <stdint.h>
+
++#if FLT_EVAL_METHOD==0
++#define EPS FLT_EPSILON
++#elif FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const float_t toint = 1/EPS;
++
+ float rintf(float x)
+ {
+ union {float f; uint32_t i;} u = {x};
+@@ -11,9 +21,9 @@ float rintf(float x)
+ if (e >= 0x7f+23)
+ return x;
+ if (s)
+- y = (float)(x - 0x1p23f) + 0x1p23f;
++ y = x - toint + toint;
+ else
+- y = (float)(x + 0x1p23f) - 0x1p23f;
++ y = x + toint - toint;
+ if (y == 0)
+ return s ? -0.0f : 0.0f;
+ return y;
+--- a/src/math/rintl.c
++++ b/src/math/rintl.c
+@@ -6,11 +6,9 @@ long double rintl(long double x)
+ return rint(x);
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double rintl(long double x)
+ {
+ union ldshape u = {x};
+@@ -21,9 +19,9 @@ long double rintl(long double x)
+ if (e >= 0x3fff+LDBL_MANT_DIG-1)
+ return x;
+ if (s)
+- y = x - TOINT + TOINT;
++ y = x - toint + toint;
+ else
+- y = x + TOINT - TOINT;
++ y = x + toint - toint;
+ if (y == 0)
+ return 0*x;
+ return y;
+--- a/src/math/round.c
++++ b/src/math/round.c
+@@ -1,5 +1,12 @@
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const double_t toint = 1/EPS;
++
+ double round(double x)
+ {
+ union {double f; uint64_t i;} u = {x};
+@@ -12,10 +19,10 @@ double round(double x)
+ x = -x;
+ if (e < 0x3ff-1) {
+ /* raise inexact if x!=0 */
+- FORCE_EVAL(x + 0x1p52);
++ FORCE_EVAL(x + toint);
+ return 0*u.f;
+ }
+- y = (double)(x + 0x1p52) - 0x1p52 - x;
++ y = x + toint - toint - x;
+ if (y > 0.5)
+ y = y + x - 1;
+ else if (y <= -0.5)
+--- a/src/math/roundf.c
++++ b/src/math/roundf.c
+@@ -1,5 +1,14 @@
+ #include "libm.h"
+
++#if FLT_EVAL_METHOD==0
++#define EPS FLT_EPSILON
++#elif FLT_EVAL_METHOD==1
++#define EPS DBL_EPSILON
++#elif FLT_EVAL_METHOD==2
++#define EPS LDBL_EPSILON
++#endif
++static const float_t toint = 1/EPS;
++
+ float roundf(float x)
+ {
+ union {float f; uint32_t i;} u = {x};
+@@ -11,10 +20,10 @@ float roundf(float x)
+ if (u.i >> 31)
+ x = -x;
+ if (e < 0x7f-1) {
+- FORCE_EVAL(x + 0x1p23f);
++ FORCE_EVAL(x + toint);
+ return 0*u.f;
+ }
+- y = (float)(x + 0x1p23f) - 0x1p23f - x;
++ y = x + toint - toint - x;
+ if (y > 0.5f)
+ y = y + x - 1;
+ else if (y <= -0.5f)
+--- a/src/math/roundl.c
++++ b/src/math/roundl.c
+@@ -6,11 +6,9 @@ long double roundl(long double x)
+ return round(x);
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double roundl(long double x)
+ {
+ union ldshape u = {x};
+@@ -22,10 +20,10 @@ long double roundl(long double x)
+ if (u.i.se >> 15)
+ x = -x;
+ if (e < 0x3fff-1) {
+- FORCE_EVAL(x + TOINT);
++ FORCE_EVAL(x + toint);
+ return 0*u.f;
+ }
+- y = x + TOINT - TOINT - x;
++ y = x + toint - toint - x;
+ if (y > 0.5)
+ y = y + x - 1;
+ else if (y <= -0.5)
+--- a/src/math/truncl.c
++++ b/src/math/truncl.c
+@@ -6,11 +6,9 @@ long double truncl(long double x)
+ return trunc(x);
+ }
+ #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+-#if LDBL_MANT_DIG == 64
+-#define TOINT 0x1p63
+-#elif LDBL_MANT_DIG == 113
+-#define TOINT 0x1p112
+-#endif
++
++static const long double toint = 1/LDBL_EPSILON;
++
+ long double truncl(long double x)
+ {
+ union ldshape u = {x};
+@@ -27,7 +25,7 @@ long double truncl(long double x)
+ /* y = int(|x|) - |x|, where int(|x|) is an integer neighbor of |x| */
+ if (s)
+ x = -x;
+- y = x + TOINT - TOINT - x;
++ y = x + toint - toint - x;
+ if (y > 0)
+ y -= 1;
+ x += y;
+--- a/src/math/x32/exp2l.s
++++ b/src/math/x32/exp2l.s
+@@ -6,9 +6,7 @@ expm1l:
+ fmulp
+ movl $0xc2820000,-4(%esp)
+ flds -4(%esp)
+- fucomp %st(1)
+- fnstsw %ax
+- sahf
++ fucomip %st(1)
+ fld1
+ jb 1f
+ # x*log2e <= -65, return -1 without underflow
+@@ -17,11 +15,8 @@ expm1l:
+ ret
+ 1: fld %st(1)
+ fabs
+- fucom %st(1)
+- fnstsw %ax
++ fucomip %st(1)
+ fstp %st(0)
+- fstp %st(0)
+- sahf
+ ja 1f
+ f2xm1
+ ret
+@@ -53,9 +48,7 @@ exp2l:
+ fld %st(1)
+ fsub %st(1)
+ faddp
+- fucomp %st(1)
+- fnstsw
+- sahf
++ fucomip %st(1)
+ je 2f # x - 0x1p63 + 0x1p63 == x
+ movl $1,(%esp)
+ flds (%esp) # 0x1p-149
+--- a/src/math/x32/fmodl.s
++++ b/src/math/x32/fmodl.s
+@@ -4,8 +4,8 @@ fmodl:
+ fldt 24(%esp)
+ fldt 8(%esp)
+ 1: fprem
+- fstsw %ax
+- sahf
+- jp 1b
++ fnstsw %ax
++ testb $4,%ah
++ jnz 1b
+ fstp %st(1)
+ ret
+--- a/src/math/x32/remainderl.s
++++ b/src/math/x32/remainderl.s
+@@ -4,8 +4,8 @@ remainderl:
+ fldt 24(%esp)
+ fldt 8(%esp)
+ 1: fprem1
+- fstsw %ax
+- sahf
+- jp 1b
++ fnstsw %ax
++ testb $4,%ah
++ jnz 1b
+ fstp %st(1)
+ ret
+--- a/src/math/x86_64/exp2l.s
++++ b/src/math/x86_64/exp2l.s
+@@ -6,9 +6,7 @@ expm1l:
+ fmulp
+ movl $0xc2820000,-4(%rsp)
+ flds -4(%rsp)
+- fucomp %st(1)
+- fnstsw %ax
+- sahf
++ fucomip %st(1)
+ fld1
+ jb 1f
+ # x*log2e <= -65, return -1 without underflow
+@@ -17,11 +15,8 @@ expm1l:
+ ret
+ 1: fld %st(1)
+ fabs
+- fucom %st(1)
+- fnstsw %ax
++ fucomip %st(1)
+ fstp %st(0)
+- fstp %st(0)
+- sahf
+ ja 1f
+ f2xm1
+ ret
+@@ -53,9 +48,7 @@ exp2l:
+ fld %st(1)
+ fsub %st(1)
+ faddp
+- fucomp %st(1)
+- fnstsw
+- sahf
++ fucomip %st(1)
+ je 2f # x - 0x1p63 + 0x1p63 == x
+ movl $1,(%rsp)
+ flds (%rsp) # 0x1p-149
+--- a/src/math/x86_64/fmodl.s
++++ b/src/math/x86_64/fmodl.s
+@@ -4,8 +4,8 @@ fmodl:
+ fldt 24(%rsp)
+ fldt 8(%rsp)
+ 1: fprem
+- fstsw %ax
+- sahf
+- jp 1b
++ fnstsw %ax
++ testb $4,%ah
++ jnz 1b
+ fstp %st(1)
+ ret
+--- a/src/math/x86_64/remainderl.s
++++ b/src/math/x86_64/remainderl.s
+@@ -4,8 +4,8 @@ remainderl:
+ fldt 24(%rsp)
+ fldt 8(%rsp)
+ 1: fprem1
+- fstsw %ax
+- sahf
+- jp 1b
++ fnstsw %ax
++ testb $4,%ah
++ jnz 1b
+ fstp %st(1)
+ ret
+--- a/src/misc/forkpty.c
++++ b/src/misc/forkpty.c
+@@ -1,38 +1,57 @@
+ #include <pty.h>
++#include <utmp.h>
+ #include <unistd.h>
+-#include <sys/ioctl.h>
++#include <errno.h>
+ #include <fcntl.h>
++#include <sys/wait.h>
++#include <pthread.h>
+
+-int forkpty(int *m, char *name, const struct termios *tio, const struct winsize *ws)
++int forkpty(int *pm, char *name, const struct termios *tio, const struct winsize *ws)
+ {
+- int s, t, i, istmp[3]={0};
+- pid_t pid;
++ int m, s, ec=0, p[2], cs;
++ pid_t pid=-1;
++ sigset_t set, oldset;
+
+- if (openpty(m, &s, name, tio, ws) < 0) return -1;
++ if (openpty(&m, &s, name, tio, ws) < 0) return -1;
+
+- /* Ensure before forking that we don't exceed fd limit */
+- for (i=0; i<3; i++) {
+- if (fcntl(i, F_GETFL) < 0) {
+- t = fcntl(s, F_DUPFD, i);
+- if (t<0) break;
+- else if (t!=i) close(t);
+- else istmp[i] = 1;
+- }
++ sigfillset(&set);
++ pthread_sigmask(SIG_BLOCK, &set, &oldset);
++ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
++
++ if (pipe2(p, O_CLOEXEC)) {
++ close(s);
++ goto out;
+ }
+- pid = i==3 ? fork() : -1;
++
++ pid = fork();
+ if (!pid) {
+- close(*m);
+- setsid();
+- ioctl(s, TIOCSCTTY, (char *)0);
+- dup2(s, 0);
+- dup2(s, 1);
+- dup2(s, 2);
+- if (s>2) close(s);
++ close(m);
++ close(p[0]);
++ if (login_tty(s)) {
++ write(p[1], &errno, sizeof errno);
++ _exit(127);
++ }
++ close(p[1]);
++ pthread_setcancelstate(cs, 0);
++ pthread_sigmask(SIG_SETMASK, &oldset, 0);
+ return 0;
+ }
+- for (i=0; i<3; i++)
+- if (istmp[i]) close(i);
+ close(s);
+- if (pid < 0) close(*m);
++ close(p[1]);
++ if (read(p[0], &ec, sizeof ec) > 0) {
++ int status;
++ waitpid(pid, &status, 0);
++ pid = -1;
++ errno = ec;
++ }
++ close(p[0]);
++
++out:
++ if (pid > 0) *pm = m;
++ else close(m);
++
++ pthread_setcancelstate(cs, 0);
++ pthread_sigmask(SIG_SETMASK, &oldset, 0);
++
+ return pid;
+ }
+--- a/src/misc/getopt.c
++++ b/src/misc/getopt.c
+@@ -4,6 +4,7 @@
+ #include <limits.h>
+ #include <stdlib.h>
+ #include "libc.h"
++#include "locale_impl.h"
+
+ char *optarg;
+ int optind=1, opterr=1, optopt, __optpos, __optreset=0;
+@@ -11,6 +12,18 @@ int optind=1, opterr=1, optopt, __optpos
+ #define optpos __optpos
+ weak_alias(__optreset, optreset);
+
++void __getopt_msg(const char *a, const char *b, const char *c, size_t l)
++{
++ FILE *f = stderr;
++ b = __lctrans_cur(b);
++ flockfile(f);
++ fwrite(a, strlen(a), 1, f)
++ && fwrite(b, strlen(b), 1, f)
++ && fwrite(c, l, 1, f)
++ && putc('\n', f);
++ funlockfile(f);
++}
++
+ int getopt(int argc, char * const argv[], const char *optstring)
+ {
+ int i;
+@@ -24,8 +37,20 @@ int getopt(int argc, char * const argv[]
+ optind = 1;
+ }
+
+- if (optind >= argc || !argv[optind] || argv[optind][0] != '-' || !argv[optind][1])
++ if (optind >= argc || !argv[optind])
++ return -1;
++
++ if (argv[optind][0] != '-') {
++ if (optstring[0] == '-') {
++ optarg = argv[optind++];
++ return 1;
++ }
++ return -1;
++ }
++
++ if (!argv[optind][1])
+ return -1;
++
+ if (argv[optind][1] == '-' && !argv[optind][2])
+ return optind++, -1;
+
+@@ -43,30 +68,31 @@ int getopt(int argc, char * const argv[]
+ optpos = 0;
+ }
+
+- for (i=0; (l = mbtowc(&d, optstring+i, MB_LEN_MAX)) && d!=c; i+=l>0?l:1);
++ if (optstring[0] == '-' || optstring[0] == '+')
++ optstring++;
++
++ i = 0;
++ d = 0;
++ do {
++ l = mbtowc(&d, optstring+i, MB_LEN_MAX);
++ if (l>0) i+=l; else i++;
++ } while (l && d != c);
+
+ if (d != c) {
+- if (optstring[0] != ':' && opterr) {
+- write(2, argv[0], strlen(argv[0]));
+- write(2, ": illegal option: ", 18);
+- write(2, optchar, k);
+- write(2, "\n", 1);
+- }
++ if (optstring[0] != ':' && opterr)
++ __getopt_msg(argv[0], ": unrecognized option: ", optchar, k);
+ return '?';
+ }
+- if (optstring[i+1] == ':') {
+- if (optind >= argc) {
++ if (optstring[i] == ':') {
++ if (optstring[i+1] == ':') optarg = 0;
++ else if (optind >= argc) {
+ if (optstring[0] == ':') return ':';
+- if (opterr) {
+- write(2, argv[0], strlen(argv[0]));
+- write(2, ": option requires an argument: ", 31);
+- write(2, optchar, k);
+- write(2, "\n", 1);
+- }
++ if (opterr) __getopt_msg(argv[0],
++ ": option requires an argument: ",
++ optchar, k);
+ return '?';
+ }
+- if (optstring[i+2] == ':') optarg = 0;
+- if (optstring[i+2] != ':' || optpos) {
++ if (optstring[i+1] != ':' || optpos) {
+ optarg = argv[optind++] + optpos;
+ optpos = 0;
+ }
+--- a/src/misc/getopt_long.c
++++ b/src/misc/getopt_long.c
+@@ -2,37 +2,106 @@
+ #include <stddef.h>
+ #include <getopt.h>
+ #include <stdio.h>
++#include <string.h>
+
+ extern int __optpos, __optreset;
+
++static void permute(char *const *argv, int dest, int src)
++{
++ char **av = (char **)argv;
++ char *tmp = av[src];
++ int i;
++ for (i=src; i>dest; i--)
++ av[i] = av[i-1];
++ av[dest] = tmp;
++}
++
++void __getopt_msg(const char *, const char *, const char *, size_t);
++
++static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly);
++
+ static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
+ {
++ int ret, skipped, resumed;
++ const char *optstring2 = optstring + 1;
+ if (!optind || __optreset) {
+ __optreset = 0;
+ __optpos = 0;
+ optind = 1;
+ }
+- if (optind >= argc || !argv[optind] || argv[optind][0] != '-') return -1;
+- if ((longonly && argv[optind][1]) ||
+- (argv[optind][1] == '-' && argv[optind][2]))
+- {
++ if (optind >= argc || !argv[optind]) return -1;
++ skipped = optind;
++ if (optstring[0] != '+' && optstring[0] != '-') {
+ int i;
+- for (i=0; longopts[i].name; i++) {
++ for (i=optind; ; i++) {
++ if (i >= argc || !argv[i]) return -1;
++ if (argv[i][0] == '-' && argv[i][1]) break;
++ }
++ optind = i;
++ optstring2 = optstring;
++ }
++ resumed = optind;
++ ret = __getopt_long_core(argc, argv, optstring2, longopts, idx, longonly);
++ if (resumed > skipped) {
++ int i, cnt = optind-resumed;
++ for (i=0; i<cnt; i++)
++ permute(argv, skipped, optind-1);
++ optind = skipped + cnt;
++ }
++ return ret;
++}
++
++static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
++{
++
++ if (longopts && argv[optind][0] == '-' &&
++ ((longonly && argv[optind][1]) ||
++ (argv[optind][1] == '-' && argv[optind][2])))
++ {
++ int i, cnt, match;
++ char *opt;
++ for (cnt=i=0; longopts[i].name; i++) {
+ const char *name = longopts[i].name;
+- char *opt = argv[optind]+1;
++ opt = argv[optind]+1;
+ if (*opt == '-') opt++;
+ for (; *name && *name == *opt; name++, opt++);
+- if (*name || (*opt && *opt != '=')) continue;
++ if (*opt && *opt != '=') continue;
++ match = i;
++ if (!*name) {
++ cnt = 1;
++ break;
++ }
++ cnt++;
++ }
++ if (cnt==1) {
++ i = match;
++ optind++;
++ optopt = longopts[i].val;
+ if (*opt == '=') {
+- if (!longopts[i].has_arg) continue;
++ if (!longopts[i].has_arg) {
++ if (optstring[0] == ':' || !opterr)
++ return '?';
++ __getopt_msg(argv[0],
++ ": option does not take an argument: ",
++ longopts[i].name,
++ strlen(longopts[i].name));
++ return '?';
++ }
+ optarg = opt+1;
+ } else {
+ if (longopts[i].has_arg == required_argument) {
+- if (!(optarg = argv[++optind]))
+- return ':';
++ if (!(optarg = argv[optind])) {
++ if (optstring[0] == ':' || !opterr)
++ return ':';
++ __getopt_msg(argv[0],
++ ": option requires an argument: ",
++ longopts[i].name,
++ strlen(longopts[i].name));
++ return '?';
++ }
++ optind++;
+ } else optarg = NULL;
+ }
+- optind++;
+ if (idx) *idx = i;
+ if (longopts[i].flag) {
+ *longopts[i].flag = longopts[i].val;
+@@ -41,6 +110,12 @@ static int __getopt_long(int argc, char
+ return longopts[i].val;
+ }
+ if (argv[optind][1] == '-') {
++ if (optstring[0] != ':' && opterr)
++ __getopt_msg(argv[0], cnt ?
++ ": option is ambiguous: " :
++ ": unrecognized option: ",
++ argv[optind]+2,
++ strlen(argv[optind]+2));
+ optind++;
+ return '?';
+ }
+--- /dev/null
++++ b/src/misc/login_tty.c
+@@ -0,0 +1,14 @@
++#include <utmp.h>
++#include <sys/ioctl.h>
++#include <unistd.h>
++
++int login_tty(int fd)
++{
++ setsid();
++ if (ioctl(fd, TIOCSCTTY, (char *)0)) return -1;
++ dup2(fd, 0);
++ dup2(fd, 1);
++ dup2(fd, 2);
++ if (fd>2) close(fd);
++ return 0;
++}
+--- a/src/misc/openpty.c
++++ b/src/misc/openpty.c
+@@ -3,31 +3,38 @@
+ #include <unistd.h>
+ #include <pty.h>
+ #include <stdio.h>
++#include <pthread.h>
+
+ /* Nonstandard, but vastly superior to the standard functions */
+
+-int openpty(int *m, int *s, char *name, const struct termios *tio, const struct winsize *ws)
++int openpty(int *pm, int *ps, char *name, const struct termios *tio, const struct winsize *ws)
+ {
+- int n=0;
++ int m, s, n=0, cs;
+ char buf[20];
+
+- *m = open("/dev/ptmx", O_RDWR|O_NOCTTY);
+- if (*m < 0) return -1;
++ m = open("/dev/ptmx", O_RDWR|O_NOCTTY);
++ if (m < 0) return -1;
+
+- if (ioctl(*m, TIOCSPTLCK, &n) || ioctl (*m, TIOCGPTN, &n)) {
+- close(*m);
+- return -1;
+- }
++ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
++
++ if (ioctl(m, TIOCSPTLCK, &n) || ioctl (m, TIOCGPTN, &n))
++ goto fail;
+
+ if (!name) name = buf;
+ snprintf(name, sizeof buf, "/dev/pts/%d", n);
+- if ((*s = open(name, O_RDWR|O_NOCTTY)) < 0) {
+- close(*m);
+- return -1;
+- }
++ if ((s = open(name, O_RDWR|O_NOCTTY)) < 0)
++ goto fail;
++
++ if (tio) tcsetattr(s, TCSANOW, tio);
++ if (ws) ioctl(s, TIOCSWINSZ, ws);
+
+- if (tio) tcsetattr(*s, TCSANOW, tio);
+- if (ws) ioctl(*s, TIOCSWINSZ, ws);
++ *pm = m;
++ *ps = s;
+
++ pthread_setcancelstate(cs, 0);
+ return 0;
++fail:
++ close(m);
++ pthread_setcancelstate(cs, 0);
++ return -1;
+ }
+--- a/src/misc/syslog.c
++++ b/src/misc/syslog.c
+@@ -46,8 +46,12 @@ void closelog(void)
+
+ static void __openlog()
+ {
+- log_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
+- if (log_fd >= 0) connect(log_fd, (void *)&log_addr, sizeof log_addr);
++ int fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
++ if (fd < 0) return;
++ if (connect(fd, (void *)&log_addr, sizeof log_addr) < 0)
++ close(fd);
++ else
++ log_fd = fd;
+ }
+
+ void openlog(const char *ident, int opt, int facility)
+--- a/src/multibyte/c16rtomb.c
++++ b/src/multibyte/c16rtomb.c
+@@ -4,6 +4,8 @@
+
+ size_t c16rtomb(char *restrict s, char16_t c16, mbstate_t *restrict ps)
+ {
++ static unsigned internal_state;
++ if (!ps) ps = (void *)&internal_state;
+ unsigned *x = (unsigned *)ps;
+ wchar_t wc;
+
+--- a/src/multibyte/mbrtoc16.c
++++ b/src/multibyte/mbrtoc16.c
+@@ -3,6 +3,8 @@
+
+ size_t mbrtoc16(char16_t *restrict pc16, const char *restrict s, size_t n, mbstate_t *restrict ps)
+ {
++ static unsigned internal_state;
++ if (!ps) ps = (void *)&internal_state;
+ unsigned *pending = (unsigned *)ps;
+
+ if (!s) return mbrtoc16(0, "", 1, ps);
+--- a/src/multibyte/mbrtoc32.c
++++ b/src/multibyte/mbrtoc32.c
+@@ -3,6 +3,8 @@
+
+ size_t mbrtoc32(char32_t *restrict pc32, const char *restrict s, size_t n, mbstate_t *restrict ps)
+ {
++ static unsigned internal_state;
++ if (!ps) ps = (void *)&internal_state;
+ if (!s) return mbrtoc32(0, "", 1, ps);
+ wchar_t wc;
+ size_t ret = mbrtowc(&wc, s, n, ps);
+--- a/src/multibyte/wcsnrtombs.c
++++ b/src/multibyte/wcsnrtombs.c
+@@ -40,7 +40,7 @@ size_t wcsnrtombs(char *restrict dst, co
+ ws++; wn--;
+ /* safe - this loop runs fewer than sizeof(buf) times */
+ s+=l; n-=l;
+- cnt++;
++ cnt += l;
+ }
+ if (dst) *wcs = ws;
+ return cnt;
+--- /dev/null
++++ b/src/network/ns_parse.c
+@@ -0,0 +1,171 @@
++#define _BSD_SOURCE
++#include <errno.h>
++#include <stddef.h>
++#include <resolv.h>
++#include <arpa/nameser.h>
++
++const struct _ns_flagdata _ns_flagdata[16] = {
++ { 0x8000, 15 },
++ { 0x7800, 11 },
++ { 0x0400, 10 },
++ { 0x0200, 9 },
++ { 0x0100, 8 },
++ { 0x0080, 7 },
++ { 0x0040, 6 },
++ { 0x0020, 5 },
++ { 0x0010, 4 },
++ { 0x000f, 0 },
++ { 0x0000, 0 },
++ { 0x0000, 0 },
++ { 0x0000, 0 },
++ { 0x0000, 0 },
++ { 0x0000, 0 },
++ { 0x0000, 0 },
++};
++
++unsigned ns_get16(const unsigned char *cp)
++{
++ return cp[0]<<8 | cp[1];
++}
++
++unsigned long ns_get32(const unsigned char *cp)
++{
++ return (unsigned)cp[0]<<24 | cp[1]<<16 | cp[2]<<8 | cp[3];
++}
++
++void ns_put16(unsigned s, unsigned char *cp)
++{
++ *cp++ = s>>8;
++ *cp++ = s;
++}
++
++void ns_put32(unsigned long l, unsigned char *cp)
++{
++ *cp++ = l>>24;
++ *cp++ = l>>16;
++ *cp++ = l>>8;
++ *cp++ = l;
++}
++
++int ns_initparse(const unsigned char *msg, int msglen, ns_msg *handle)
++{
++ int i, r;
++
++ handle->_msg = msg;
++ handle->_eom = msg + msglen;
++ if (msglen < (2 + ns_s_max) * NS_INT16SZ) goto bad;
++ NS_GET16(handle->_id, msg);
++ NS_GET16(handle->_flags, msg);
++ for (i = 0; i < ns_s_max; i++) NS_GET16(handle->_counts[i], msg);
++ for (i = 0; i < ns_s_max; i++) {
++ if (handle->_counts[i]) {
++ handle->_sections[i] = msg;
++ r = ns_skiprr(msg, handle->_eom, i, handle->_counts[i]);
++ if (r < 0) return -1;
++ msg += r;
++ } else {
++ handle->_sections[i] = NULL;
++ }
++ }
++ if (msg != handle->_eom) goto bad;
++ handle->_sect = ns_s_max;
++ handle->_rrnum = -1;
++ handle->_msg_ptr = NULL;
++ return 0;
++bad:
++ errno = EMSGSIZE;
++ return -1;
++}
++
++int ns_skiprr(const unsigned char *ptr, const unsigned char *eom, ns_sect section, int count)
++{
++ const unsigned char *p = ptr;
++ int r;
++
++ while (count--) {
++ r = dn_skipname(p, eom);
++ if (r < 0) goto bad;
++ if (r + 2 * NS_INT16SZ > eom - p) goto bad;
++ p += r + 2 * NS_INT16SZ;
++ if (section != ns_s_qd) {
++ if (NS_INT32SZ + NS_INT16SZ > eom - p) goto bad;
++ p += NS_INT32SZ;
++ NS_GET16(r, p);
++ if (r > eom - p) goto bad;
++ p += r;
++ }
++ }
++ return ptr - p;
++bad:
++ errno = EMSGSIZE;
++ return -1;
++}
++
++int ns_parserr(ns_msg *handle, ns_sect section, int rrnum, ns_rr *rr)
++{
++ int r;
++
++ if (section < 0 || section >= ns_s_max) goto bad;
++ if (section != handle->_sect) {
++ handle->_sect = section;
++ handle->_rrnum = 0;
++ handle->_msg_ptr = handle->_sections[section];
++ }
++ if (rrnum == -1) rrnum = handle->_rrnum;
++ if (rrnum < 0 || rrnum >= handle->_counts[section]) goto bad;
++ if (rrnum < handle->_rrnum) {
++ handle->_rrnum = 0;
++ handle->_msg_ptr = handle->_sections[section];
++ }
++ if (rrnum > handle->_rrnum) {
++ r = ns_skiprr(handle->_msg_ptr, handle->_eom, section, rrnum - handle->_rrnum);
++ if (r < 0) return -1;
++ handle->_msg_ptr += r;
++ handle->_rrnum = rrnum;
++ }
++ r = ns_name_uncompress(handle->_msg, handle->_eom, handle->_msg_ptr, rr->name, NS_MAXDNAME);
++ if (r < 0) return -1;
++ handle->_msg_ptr += r;
++ if (2 * NS_INT16SZ > handle->_eom - handle->_msg_ptr) goto size;
++ NS_GET16(rr->type, handle->_msg_ptr);
++ NS_GET16(rr->rr_class, handle->_msg_ptr);
++ if (section != ns_s_qd) {
++ if (NS_INT32SZ + NS_INT16SZ > handle->_eom - handle->_msg_ptr) goto size;
++ NS_GET32(rr->ttl, handle->_msg_ptr);
++ NS_GET16(rr->rdlength, handle->_msg_ptr);
++ if (rr->rdlength > handle->_eom - handle->_msg_ptr) goto size;
++ rr->rdata = handle->_msg_ptr;
++ handle->_msg_ptr += rr->rdlength;
++ } else {
++ rr->ttl = 0;
++ rr->rdlength = 0;
++ rr->rdata = NULL;
++ }
++ handle->_rrnum++;
++ if (handle->_rrnum > handle->_counts[section]) {
++ handle->_sect = section + 1;
++ if (handle->_sect == ns_s_max) {
++ handle->_rrnum = -1;
++ handle->_msg_ptr = NULL;
++ } else {
++ handle->_rrnum = 0;
++ }
++ }
++ return 0;
++bad:
++ errno = ENODEV;
++ return -1;
++size:
++ errno = EMSGSIZE;
++ return -1;
++}
++
++int ns_name_uncompress(const unsigned char *msg, const unsigned char *eom,
++ const unsigned char *src, char *dst, size_t dstsiz)
++{
++ int r;
++ r = dn_expand(msg, eom, src, dst, dstsiz);
++ if (r < 0) errno = EMSGSIZE;
++ return r;
++}
++
+--- a/src/process/posix_spawn.c
++++ b/src/process/posix_spawn.c
+@@ -102,8 +102,7 @@ static int child(void *args_vp)
+ }
+ switch(op->cmd) {
+ case FDOP_CLOSE:
+- if ((ret=__syscall(SYS_close, op->fd)))
+- goto fail;
++ __syscall(SYS_close, op->fd);
+ break;
+ case FDOP_DUP2:
+ if ((ret=__sys_dup2(op->srcfd, op->fd))<0)
+@@ -137,7 +136,7 @@ static int child(void *args_vp)
+ fail:
+ /* Since sizeof errno < PIPE_BUF, the write is atomic. */
+ ret = -ret;
+- if (ret) while (write(p, &ret, sizeof ret) < 0);
++ if (ret) while (__syscall(SYS_write, p, &ret, sizeof ret) < 0);
+ _exit(127);
+ }
+
+--- a/src/regex/fnmatch.c
++++ b/src/regex/fnmatch.c
+@@ -97,7 +97,13 @@ escaped:
+ return pat[0];
+ }
+
+-static int match_bracket(const char *p, int k)
++static int casefold(int k)
++{
++ int c = towupper(k);
++ return c == k ? towlower(k) : c;
++}
++
++static int match_bracket(const char *p, int k, int kfold)
+ {
+ wchar_t wc;
+ int inv = 0;
+@@ -119,7 +125,10 @@ static int match_bracket(const char *p,
+ wchar_t wc2;
+ int l = mbtowc(&wc2, p+1, 4);
+ if (l < 0) return 0;
+- if (wc<=wc2 && (unsigned)k-wc <= wc2-wc) return !inv;
++ if (wc <= wc2)
++ if ((unsigned)k-wc <= wc2-wc ||
++ (unsigned)kfold-wc <= wc2-wc)
++ return !inv;
+ p += l-1;
+ continue;
+ }
+@@ -132,7 +141,9 @@ static int match_bracket(const char *p,
+ char buf[16];
+ memcpy(buf, p0, p-1-p0);
+ buf[p-1-p0] = 0;
+- if (iswctype(k, wctype(buf))) return !inv;
++ if (iswctype(k, wctype(buf)) ||
++ iswctype(kfold, wctype(buf)))
++ return !inv;
+ }
+ continue;
+ }
+@@ -143,7 +154,7 @@ static int match_bracket(const char *p,
+ if (l < 0) return 0;
+ p += l-1;
+ }
+- if (wc==k) return !inv;
++ if (wc==k || wc==kfold) return !inv;
+ }
+ return inv;
+ }
+@@ -153,7 +164,7 @@ static int fnmatch_internal(const char *
+ const char *p, *ptail, *endpat;
+ const char *s, *stail, *endstr;
+ size_t pinc, sinc, tailcnt=0;
+- int c, k;
++ int c, k, kfold;
+
+ if (flags & FNM_PERIOD) {
+ if (*str == '.' && *pat != '.')
+@@ -173,10 +184,11 @@ static int fnmatch_internal(const char *
+ return (c==END) ? 0 : FNM_NOMATCH;
+ str += sinc;
+ n -= sinc;
++ kfold = flags & FNM_CASEFOLD ? casefold(k) : k;
+ if (c == BRACKET) {
+- if (!match_bracket(pat, k))
++ if (!match_bracket(pat, k, kfold))
+ return FNM_NOMATCH;
+- } else if (c != QUESTION && k != c) {
++ } else if (c != QUESTION && k != c && kfold != c) {
+ return FNM_NOMATCH;
+ }
+ pat+=pinc;
+@@ -233,10 +245,11 @@ static int fnmatch_internal(const char *
+ break;
+ }
+ s += sinc;
++ kfold = flags & FNM_CASEFOLD ? casefold(k) : k;
+ if (c == BRACKET) {
+- if (!match_bracket(p-pinc, k))
++ if (!match_bracket(p-pinc, k, kfold))
+ return FNM_NOMATCH;
+- } else if (c != QUESTION && k != c) {
++ } else if (c != QUESTION && k != c && kfold != c) {
+ return FNM_NOMATCH;
+ }
+ }
+@@ -261,10 +274,11 @@ static int fnmatch_internal(const char *
+ k = str_next(s, endstr-s, &sinc);
+ if (!k)
+ return FNM_NOMATCH;
++ kfold = flags & FNM_CASEFOLD ? casefold(k) : k;
+ if (c == BRACKET) {
+- if (!match_bracket(p-pinc, k))
++ if (!match_bracket(p-pinc, k, kfold))
+ break;
+- } else if (c != QUESTION && k != c) {
++ } else if (c != QUESTION && k != c && kfold != c) {
+ break;
+ }
+ s += sinc;
+--- a/src/sched/affinity.c
++++ b/src/sched/affinity.c
+@@ -1,5 +1,6 @@
+ #define _GNU_SOURCE
+ #include <sched.h>
++#include <string.h>
+ #include "pthread_impl.h"
+ #include "syscall.h"
+
+@@ -10,17 +11,23 @@ int sched_setaffinity(pid_t tid, size_t
+
+ int pthread_setaffinity_np(pthread_t td, size_t size, const cpu_set_t *set)
+ {
+- return syscall(SYS_sched_setaffinity, td->tid, size, set);
++ return -__syscall(SYS_sched_setaffinity, td->tid, size, set);
+ }
+
+-int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
++static int do_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
+ {
+ long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
+- if (ret > 0) ret = 0;
+- return __syscall_ret(ret);
++ if (ret < 0) return ret;
++ if (ret < size) memset((char *)set+ret, 0, size-ret);
++ return 0;
++}
++
++int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
++{
++ return __syscall_ret(do_getaffinity(tid, size, set));
+ }
+
+ int pthread_getaffinity_np(pthread_t td, size_t size, cpu_set_t *set)
+ {
+- return sched_getaffinity(td->tid, size, set);
++ return -do_getaffinity(td->tid, size, set);
+ }
+--- a/src/setjmp/arm/longjmp.s
++++ b/src/setjmp/arm/longjmp.s
+@@ -20,7 +20,7 @@ longjmp:
+ ldc p2, cr4, [ip], #48
+ 2: tst r1,#0x40
+ beq 2f
+- ldc p11, cr8, [ip], #64
++ .word 0xecbc8b10 /* vldmia ip!, {d8-d15} */
+ 2: tst r1,#0x200
+ beq 3f
+ ldcl p1, cr10, [ip], #8
+--- a/src/setjmp/arm/setjmp.s
++++ b/src/setjmp/arm/setjmp.s
+@@ -22,7 +22,7 @@ setjmp:
+ stc p2, cr4, [ip], #48
+ 2: tst r1,#0x40
+ beq 2f
+- stc p11, cr8, [ip], #64
++ .word 0xecac8b10 /* vstmia ip!, {d8-d15} */
+ 2: tst r1,#0x200
+ beq 3f
+ stcl p1, cr10, [ip], #8
+--- a/src/signal/raise.c
++++ b/src/signal/raise.c
+@@ -5,12 +5,11 @@
+
+ int raise(int sig)
+ {
+- int pid, tid, ret;
++ int tid, ret;
+ sigset_t set;
+ __block_app_sigs(&set);
+ tid = __syscall(SYS_gettid);
+- pid = __syscall(SYS_getpid);
+- ret = syscall(SYS_tgkill, pid, tid, sig);
++ ret = syscall(SYS_tkill, tid, sig);
+ __restore_sigs(&set);
+ return ret;
+ }
+--- a/src/stdio/vfprintf.c
++++ b/src/stdio/vfprintf.c
+@@ -158,7 +158,7 @@ static void pop_arg(union arg *arg, int
+
+ static void out(FILE *f, const char *s, size_t l)
+ {
+- __fwritex((void *)s, l, f);
++ if (!(f->flags & F_ERR)) __fwritex((void *)s, l, f);
+ }
+
+ static void pad(FILE *f, char c, int w, int l, int fl)
+@@ -225,7 +225,7 @@ static int fmt_fp(FILE *f, long double y
+
+ if (!isfinite(y)) {
+ char *s = (t&32)?"inf":"INF";
+- if (y!=y) s=(t&32)?"nan":"NAN", pl=0;
++ if (y!=y) s=(t&32)?"nan":"NAN";
+ pad(f, ' ', w, 3+pl, fl&~ZERO_PAD);
+ out(f, prefix, pl);
+ out(f, s, 3);
+@@ -570,7 +570,7 @@ static int printf_core(FILE *f, const ch
+ if (0) {
+ case 'o':
+ a = fmt_o(arg.i, z);
+- if ((fl&ALT_FORM) && arg.i) prefix+=5, pl=1;
++ if ((fl&ALT_FORM) && p<z-a+1) p=z-a+1;
+ } if (0) {
+ case 'd': case 'i':
+ pl=1;
+@@ -656,6 +656,7 @@ int vfprintf(FILE *restrict f, const cha
+ int nl_type[NL_ARGMAX+1] = {0};
+ union arg nl_arg[NL_ARGMAX+1];
+ unsigned char internal_buf[80], *saved_buf = 0;
++ int olderr;
+ int ret;
+
+ /* the copy allows passing va_list* even if va_list is an array */
+@@ -666,6 +667,8 @@ int vfprintf(FILE *restrict f, const cha
+ }
+
+ FLOCK(f);
++ olderr = f->flags & F_ERR;
++ if (f->mode < 1) f->flags &= ~F_ERR;
+ if (!f->buf_size) {
+ saved_buf = f->buf;
+ f->wpos = f->wbase = f->buf = internal_buf;
+@@ -680,6 +683,8 @@ int vfprintf(FILE *restrict f, const cha
+ f->buf_size = 0;
+ f->wpos = f->wbase = f->wend = 0;
+ }
++ if (f->flags & F_ERR) ret = -1;
++ f->flags |= olderr;
+ FUNLOCK(f);
+ va_end(ap2);
+ return ret;
+--- a/src/stdio/vfwprintf.c
++++ b/src/stdio/vfwprintf.c
+@@ -149,7 +149,7 @@ static void pop_arg(union arg *arg, int
+
+ static void out(FILE *f, const wchar_t *s, size_t l)
+ {
+- while (l--) fputwc(*s++, f);
++ while (l-- && !(f->flags & F_ERR)) fputwc(*s++, f);
+ }
+
+ static int getint(wchar_t **s) {
+@@ -345,6 +345,7 @@ int vfwprintf(FILE *restrict f, const wc
+ va_list ap2;
+ int nl_type[NL_ARGMAX] = {0};
+ union arg nl_arg[NL_ARGMAX];
++ int olderr;
+ int ret;
+
+ /* the copy allows passing va_list* even if va_list is an array */
+@@ -356,7 +357,11 @@ int vfwprintf(FILE *restrict f, const wc
+
+ FLOCK(f);
+ f->mode |= f->mode+1;
++ olderr = f->flags & F_ERR;
++ f->flags &= ~F_ERR;
+ ret = wprintf_core(f, fmt, &ap2, nl_arg, nl_type);
++ if (f->flags & F_ERR) ret = -1;
++ f->flags |= olderr;
+ FUNLOCK(f);
+ va_end(ap2);
+ return ret;
+--- a/src/string/armel/memcpy.s
++++ b/src/string/armel/memcpy.s
+@@ -49,113 +49,113 @@ memcpy:
+ * ARM ABI. Since we have to save R0, we might as well save R4
+ * which we can use for better pipelining of the reads below
+ */
+- .fnstart
+- .save {r0, r4, lr}
+- stmfd sp!, {r0, r4, lr}
+- /* Making room for r5-r11 which will be spilled later */
+- .pad #28
+- sub sp, sp, #28
+-
+- /* it simplifies things to take care of len<4 early */
+- cmp r2, #4
+- blo copy_last_3_and_return
+-
+- /* compute the offset to align the source
+- * offset = (4-(src&3))&3 = -src & 3
+- */
+- rsb r3, r1, #0
+- ands r3, r3, #3
+- beq src_aligned
+-
+- /* align source to 32 bits. We need to insert 2 instructions between
+- * a ldr[b|h] and str[b|h] because byte and half-word instructions
+- * stall 2 cycles.
+- */
+- movs r12, r3, lsl #31
+- sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */
+- ldrmib r3, [r1], #1
+- ldrcsb r4, [r1], #1
+- ldrcsb r12,[r1], #1
+- strmib r3, [r0], #1
+- strcsb r4, [r0], #1
+- strcsb r12,[r0], #1
++ .fnstart
++ .save {r0, r4, lr}
++ stmfd sp!, {r0, r4, lr}
++ /* Making room for r5-r11 which will be spilled later */
++ .pad #28
++ sub sp, sp, #28
++
++ /* it simplifies things to take care of len<4 early */
++ cmp r2, #4
++ blo copy_last_3_and_return
++
++ /* compute the offset to align the source
++ * offset = (4-(src&3))&3 = -src & 3
++ */
++ rsb r3, r1, #0
++ ands r3, r3, #3
++ beq src_aligned
++
++ /* align source to 32 bits. We need to insert 2 instructions between
++ * a ldr[b|h] and str[b|h] because byte and half-word instructions
++ * stall 2 cycles.
++ */
++ movs r12, r3, lsl #31
++ sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */
++ .word 0x44d13001 /* ldrbmi r3, [r1], #1 */
++ .word 0x24d14001 /* ldrbcs r4, [r1], #1 */
++ .word 0x24d1c001 /* ldrbcs r12,[r1], #1 */
++ .word 0x44c03001 /* strbmi r3, [r0], #1 */
++ .word 0x24c04001 /* strbcs r4, [r0], #1 */
++ .word 0x24c0c001 /* strbcs r12,[r0], #1 */
+
+ src_aligned:
+
+ /* see if src and dst are aligned together (congruent) */
+- eor r12, r0, r1
+- tst r12, #3
+- bne non_congruent
+-
+- /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+- * frame. Don't update sp.
+- */
+- stmea sp, {r5-r11}
+-
+- /* align the destination to a cache-line */
+- rsb r3, r0, #0
+- ands r3, r3, #0x1C
+- beq congruent_aligned32
+- cmp r3, r2
+- andhi r3, r2, #0x1C
+-
+- /* conditionnaly copies 0 to 7 words (length in r3) */
+- movs r12, r3, lsl #28
+- ldmcsia r1!, {r4, r5, r6, r7} /* 16 bytes */
+- ldmmiia r1!, {r8, r9} /* 8 bytes */
+- stmcsia r0!, {r4, r5, r6, r7}
+- stmmiia r0!, {r8, r9}
+- tst r3, #0x4
+- ldrne r10,[r1], #4 /* 4 bytes */
+- strne r10,[r0], #4
+- sub r2, r2, r3
++ eor r12, r0, r1
++ tst r12, #3
++ bne non_congruent
++
++ /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
++ * frame. Don't update sp.
++ */
++ stmea sp, {r5-r11}
++
++ /* align the destination to a cache-line */
++ rsb r3, r0, #0
++ ands r3, r3, #0x1C
++ beq congruent_aligned32
++ cmp r3, r2
++ andhi r3, r2, #0x1C
++
++ /* conditionnaly copies 0 to 7 words (length in r3) */
++ movs r12, r3, lsl #28
++ ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
++ ldmmi r1!, {r8, r9} /* 8 bytes */
++ stmcs r0!, {r4, r5, r6, r7}
++ stmmi r0!, {r8, r9}
++ tst r3, #0x4
++ ldrne r10,[r1], #4 /* 4 bytes */
++ strne r10,[r0], #4
++ sub r2, r2, r3
+
+ congruent_aligned32:
+ /*
+- * here source is aligned to 32 bytes.
+- */
++ * here source is aligned to 32 bytes.
++ */
+
+ cached_aligned32:
+- subs r2, r2, #32
+- blo less_than_32_left
++ subs r2, r2, #32
++ blo less_than_32_left
+
+- /*
+- * We preload a cache-line up to 64 bytes ahead. On the 926, this will
+- * stall only until the requested world is fetched, but the linefill
+- * continues in the the background.
+- * While the linefill is going, we write our previous cache-line
+- * into the write-buffer (which should have some free space).
+- * When the linefill is done, the writebuffer will
+- * start dumping its content into memory
+- *
+- * While all this is going, we then load a full cache line into
+- * 8 registers, this cache line should be in the cache by now
+- * (or partly in the cache).
+- *
+- * This code should work well regardless of the source/dest alignment.
+- *
+- */
+-
+- /* Align the preload register to a cache-line because the cpu does
+- * "critical word first" (the first word requested is loaded first).
+- */
+- @ bic r12, r1, #0x1F
+- @ add r12, r12, #64
+-
+-1: ldmia r1!, { r4-r11 }
+- subs r2, r2, #32
+-
+- /*
+- * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
+- * for ARM9 preload will not be safely guarded by the preceding subs.
+- * When it is safely guarded the only possibility to have SIGSEGV here
+- * is because the caller overstates the length.
+- */
+- @ ldrhi r3, [r12], #32 /* cheap ARM9 preload */
+- stmia r0!, { r4-r11 }
+- bhs 1b
++ /*
++ * We preload a cache-line up to 64 bytes ahead. On the 926, this will
++ * stall only until the requested world is fetched, but the linefill
++ * continues in the the background.
++ * While the linefill is going, we write our previous cache-line
++ * into the write-buffer (which should have some free space).
++ * When the linefill is done, the writebuffer will
++ * start dumping its content into memory
++ *
++ * While all this is going, we then load a full cache line into
++ * 8 registers, this cache line should be in the cache by now
++ * (or partly in the cache).
++ *
++ * This code should work well regardless of the source/dest alignment.
++ *
++ */
+
+- add r2, r2, #32
++ /* Align the preload register to a cache-line because the cpu does
++ * "critical word first" (the first word requested is loaded first).
++ */
++ @ bic r12, r1, #0x1F
++ @ add r12, r12, #64
++
++1: ldmia r1!, { r4-r11 }
++ subs r2, r2, #32
++
++ /*
++ * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
++ * for ARM9 preload will not be safely guarded by the preceding subs.
++ * When it is safely guarded the only possibility to have SIGSEGV here
++ * is because the caller overstates the length.
++ */
++ @ ldrhi r3, [r12], #32 /* cheap ARM9 preload */
++ stmia r0!, { r4-r11 }
++ bhs 1b
++
++ add r2, r2, #32
+
+ less_than_32_left:
+ /*
+@@ -166,30 +166,30 @@ less_than_32_left:
+ * be a common case (if not executed the code below takes
+ * about 16 cycles)
+ */
+- tst r2, #0x1F
+- beq 1f
++ tst r2, #0x1F
++ beq 1f
+
+- /* conditionnaly copies 0 to 31 bytes */
+- movs r12, r2, lsl #28
+- ldmcsia r1!, {r4, r5, r6, r7} /* 16 bytes */
+- ldmmiia r1!, {r8, r9} /* 8 bytes */
+- stmcsia r0!, {r4, r5, r6, r7}
+- stmmiia r0!, {r8, r9}
+- movs r12, r2, lsl #30
+- ldrcs r3, [r1], #4 /* 4 bytes */
+- ldrmih r4, [r1], #2 /* 2 bytes */
+- strcs r3, [r0], #4
+- strmih r4, [r0], #2
+- tst r2, #0x1
+- ldrneb r3, [r1] /* last byte */
+- strneb r3, [r0]
+-
+- /* we're done! restore everything and return */
+-1: ldmfd sp!, {r5-r11}
+- ldmfd sp!, {r0, r4, lr}
+- tst lr, #1
+- moveq pc, lr
+- bx lr
++ /* conditionnaly copies 0 to 31 bytes */
++ movs r12, r2, lsl #28
++ ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
++ ldmmi r1!, {r8, r9} /* 8 bytes */
++ stmcs r0!, {r4, r5, r6, r7}
++ stmmi r0!, {r8, r9}
++ movs r12, r2, lsl #30
++ ldrcs r3, [r1], #4 /* 4 bytes */
++ .word 0x40d140b2 /* ldrhmi r4, [r1], #2 */ /* 2 bytes */
++ strcs r3, [r0], #4
++ .word 0x40c040b2 /* strhmi r4, [r0], #2 */
++ tst r2, #0x1
++ .word 0x15d13000 /* ldrbne r3, [r1] */ /* last byte */
++ .word 0x15c03000 /* strbne r3, [r0] */
++
++ /* we're done! restore everything and return */
++1: ldmfd sp!, {r5-r11}
++ ldmfd sp!, {r0, r4, lr}
++ tst lr, #1
++ moveq pc, lr
++ bx lr
+
+ /********************************************************************/
+
+@@ -202,180 +202,180 @@ non_congruent:
+ * (the number of bytes written is always smaller, because we have
+ * partial words in the shift queue)
+ */
+- cmp r2, #4
+- blo copy_last_3_and_return
++ cmp r2, #4
++ blo copy_last_3_and_return
+
+- /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+- * frame. Don't update sp.
+- */
+- stmea sp, {r5-r11}
+-
+- /* compute shifts needed to align src to dest */
+- rsb r5, r0, #0
+- and r5, r5, #3 /* r5 = # bytes in partial words */
+- mov r12, r5, lsl #3 /* r12 = right */
+- rsb lr, r12, #32 /* lr = left */
+-
+- /* read the first word */
+- ldr r3, [r1], #4
+- sub r2, r2, #4
+-
+- /* write a partial word (0 to 3 bytes), such that destination
+- * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
+- */
+- movs r5, r5, lsl #31
+- strmib r3, [r0], #1
+- movmi r3, r3, lsr #8
+- strcsb r3, [r0], #1
+- movcs r3, r3, lsr #8
+- strcsb r3, [r0], #1
+- movcs r3, r3, lsr #8
+-
+- cmp r2, #4
+- blo partial_word_tail
+-
+- /* Align destination to 32 bytes (cache line boundary) */
+-1: tst r0, #0x1c
+- beq 2f
+- ldr r5, [r1], #4
+- sub r2, r2, #4
+- orr r4, r3, r5, lsl lr
+- mov r3, r5, lsr r12
+- str r4, [r0], #4
+- cmp r2, #4
+- bhs 1b
+- blo partial_word_tail
++ /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
++ * frame. Don't update sp.
++ */
++ stmea sp, {r5-r11}
++
++ /* compute shifts needed to align src to dest */
++ rsb r5, r0, #0
++ and r5, r5, #3 /* r5 = # bytes in partial words */
++ mov r12, r5, lsl #3 /* r12 = right */
++ rsb lr, r12, #32 /* lr = left */
++
++ /* read the first word */
++ ldr r3, [r1], #4
++ sub r2, r2, #4
++
++ /* write a partial word (0 to 3 bytes), such that destination
++ * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
++ */
++ movs r5, r5, lsl #31
++ .word 0x44c03001 /* strbmi r3, [r0], #1 */
++ movmi r3, r3, lsr #8
++ .word 0x24c03001 /* strbcs r3, [r0], #1 */
++ movcs r3, r3, lsr #8
++ .word 0x24c03001 /* strbcs r3, [r0], #1 */
++ movcs r3, r3, lsr #8
++
++ cmp r2, #4
++ blo partial_word_tail
++
++ /* Align destination to 32 bytes (cache line boundary) */
++1: tst r0, #0x1c
++ beq 2f
++ ldr r5, [r1], #4
++ sub r2, r2, #4
++ orr r4, r3, r5, lsl lr
++ mov r3, r5, lsr r12
++ str r4, [r0], #4
++ cmp r2, #4
++ bhs 1b
++ blo partial_word_tail
+
+ /* copy 32 bytes at a time */
+-2: subs r2, r2, #32
+- blo less_than_thirtytwo
++2: subs r2, r2, #32
++ blo less_than_thirtytwo
++
++ /* Use immediate mode for the shifts, because there is an extra cycle
++ * for register shifts, which could account for up to 50% of
++ * performance hit.
++ */
+
+- /* Use immediate mode for the shifts, because there is an extra cycle
+- * for register shifts, which could account for up to 50% of
+- * performance hit.
+- */
+-
+- cmp r12, #24
+- beq loop24
+- cmp r12, #8
+- beq loop8
++ cmp r12, #24
++ beq loop24
++ cmp r12, #8
++ beq loop8
+
+ loop16:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #16
+- mov r4, r4, lsr #16
+- orr r4, r4, r5, lsl #16
+- mov r5, r5, lsr #16
+- orr r5, r5, r6, lsl #16
+- mov r6, r6, lsr #16
+- orr r6, r6, r7, lsl #16
+- mov r7, r7, lsr #16
+- orr r7, r7, r8, lsl #16
+- mov r8, r8, lsr #16
+- orr r8, r8, r9, lsl #16
+- mov r9, r9, lsr #16
+- orr r9, r9, r10, lsl #16
+- mov r10, r10, lsr #16
+- orr r10, r10, r11, lsl #16
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #16
+- bhs 1b
+- b less_than_thirtytwo
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #16
++ mov r4, r4, lsr #16
++ orr r4, r4, r5, lsl #16
++ mov r5, r5, lsr #16
++ orr r5, r5, r6, lsl #16
++ mov r6, r6, lsr #16
++ orr r6, r6, r7, lsl #16
++ mov r7, r7, lsr #16
++ orr r7, r7, r8, lsl #16
++ mov r8, r8, lsr #16
++ orr r8, r8, r9, lsl #16
++ mov r9, r9, lsr #16
++ orr r9, r9, r10, lsl #16
++ mov r10, r10, lsr #16
++ orr r10, r10, r11, lsl #16
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #16
++ bhs 1b
++ b less_than_thirtytwo
+
+ loop8:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #24
+- mov r4, r4, lsr #8
+- orr r4, r4, r5, lsl #24
+- mov r5, r5, lsr #8
+- orr r5, r5, r6, lsl #24
+- mov r6, r6, lsr #8
+- orr r6, r6, r7, lsl #24
+- mov r7, r7, lsr #8
+- orr r7, r7, r8, lsl #24
+- mov r8, r8, lsr #8
+- orr r8, r8, r9, lsl #24
+- mov r9, r9, lsr #8
+- orr r9, r9, r10, lsl #24
+- mov r10, r10, lsr #8
+- orr r10, r10, r11, lsl #24
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #8
+- bhs 1b
+- b less_than_thirtytwo
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #24
++ mov r4, r4, lsr #8
++ orr r4, r4, r5, lsl #24
++ mov r5, r5, lsr #8
++ orr r5, r5, r6, lsl #24
++ mov r6, r6, lsr #8
++ orr r6, r6, r7, lsl #24
++ mov r7, r7, lsr #8
++ orr r7, r7, r8, lsl #24
++ mov r8, r8, lsr #8
++ orr r8, r8, r9, lsl #24
++ mov r9, r9, lsr #8
++ orr r9, r9, r10, lsl #24
++ mov r10, r10, lsr #8
++ orr r10, r10, r11, lsl #24
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #8
++ bhs 1b
++ b less_than_thirtytwo
+
+ loop24:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #8
+- mov r4, r4, lsr #24
+- orr r4, r4, r5, lsl #8
+- mov r5, r5, lsr #24
+- orr r5, r5, r6, lsl #8
+- mov r6, r6, lsr #24
+- orr r6, r6, r7, lsl #8
+- mov r7, r7, lsr #24
+- orr r7, r7, r8, lsl #8
+- mov r8, r8, lsr #24
+- orr r8, r8, r9, lsl #8
+- mov r9, r9, lsr #24
+- orr r9, r9, r10, lsl #8
+- mov r10, r10, lsr #24
+- orr r10, r10, r11, lsl #8
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #24
+- bhs 1b
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #8
++ mov r4, r4, lsr #24
++ orr r4, r4, r5, lsl #8
++ mov r5, r5, lsr #24
++ orr r5, r5, r6, lsl #8
++ mov r6, r6, lsr #24
++ orr r6, r6, r7, lsl #8
++ mov r7, r7, lsr #24
++ orr r7, r7, r8, lsl #8
++ mov r8, r8, lsr #24
++ orr r8, r8, r9, lsl #8
++ mov r9, r9, lsr #24
++ orr r9, r9, r10, lsl #8
++ mov r10, r10, lsr #24
++ orr r10, r10, r11, lsl #8
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #24
++ bhs 1b
+
+ less_than_thirtytwo:
+ /* copy the last 0 to 31 bytes of the source */
+- rsb r12, lr, #32 /* we corrupted r12, recompute it */
+- add r2, r2, #32
+- cmp r2, #4
+- blo partial_word_tail
+-
+-1: ldr r5, [r1], #4
+- sub r2, r2, #4
+- orr r4, r3, r5, lsl lr
+- mov r3, r5, lsr r12
+- str r4, [r0], #4
+- cmp r2, #4
+- bhs 1b
++ rsb r12, lr, #32 /* we corrupted r12, recompute it */
++ add r2, r2, #32
++ cmp r2, #4
++ blo partial_word_tail
++
++1: ldr r5, [r1], #4
++ sub r2, r2, #4
++ orr r4, r3, r5, lsl lr
++ mov r3, r5, lsr r12
++ str r4, [r0], #4
++ cmp r2, #4
++ bhs 1b
+
+ partial_word_tail:
+ /* we have a partial word in the input buffer */
+- movs r5, lr, lsl #(31-3)
+- strmib r3, [r0], #1
+- movmi r3, r3, lsr #8
+- strcsb r3, [r0], #1
+- movcs r3, r3, lsr #8
+- strcsb r3, [r0], #1
++ movs r5, lr, lsl #(31-3)
++ .word 0x44c03001 /* strbmi r3, [r0], #1 */
++ movmi r3, r3, lsr #8
++ .word 0x24c03001 /* strbcs r3, [r0], #1 */
++ movcs r3, r3, lsr #8
++ .word 0x24c03001 /* strbcs r3, [r0], #1 */
+
+- /* Refill spilled registers from the stack. Don't update sp. */
+- ldmfd sp, {r5-r11}
++ /* Refill spilled registers from the stack. Don't update sp. */
++ ldmfd sp, {r5-r11}
+
+ copy_last_3_and_return:
+- movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
+- ldrmib r2, [r1], #1
+- ldrcsb r3, [r1], #1
+- ldrcsb r12,[r1]
+- strmib r2, [r0], #1
+- strcsb r3, [r0], #1
+- strcsb r12,[r0]
+-
+- /* we're done! restore sp and spilled registers and return */
+- add sp, sp, #28
+- ldmfd sp!, {r0, r4, lr}
+- tst lr, #1
+- moveq pc, lr
+- bx lr
++ movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
++ .word 0x44d12001 /* ldrbmi r2, [r1], #1 */
++ .word 0x24d13001 /* ldrbcs r3, [r1], #1 */
++ .word 0x25d1c000 /* ldrbcs r12,[r1] */
++ .word 0x44c02001 /* strbmi r2, [r0], #1 */
++ .word 0x24c03001 /* strbcs r3, [r0], #1 */
++ .word 0x25c0c000 /* strbcs r12,[r0] */
++
++ /* we're done! restore sp and spilled registers and return */
++ add sp, sp, #28
++ ldmfd sp!, {r0, r4, lr}
++ tst lr, #1
++ moveq pc, lr
++ bx lr
+--- a/src/thread/arm/__set_thread_area.s
++++ b/src/thread/arm/__set_thread_area.s
+@@ -1,12 +1 @@
+-.text
+-.global __set_thread_area
+-.type __set_thread_area,%function
+-__set_thread_area:
+- mov r1,r7
+- mov r7,#0x0f0000
+- add r7,r7,#5
+- svc 0
+- mov r7,r1
+- tst lr,#1
+- moveq pc,lr
+- bx lr
++/* Replaced by C code in arch/arm/src */
+--- a/src/thread/arm/tls.s
++++ /dev/null
+@@ -1,4 +0,0 @@
+-.global __aeabi_read_tp
+-.type __aeabi_read_tp,%function
+-__aeabi_read_tp:
+- ldr pc,=0xffff0fe0
+--- a/src/thread/pthread_once.c
++++ b/src/thread/pthread_once.c
+@@ -8,15 +8,8 @@ static void undo(void *control)
+ __wake(control, -1, 1);
+ }
+
+-int __pthread_once(pthread_once_t *control, void (*init)(void))
++int __pthread_once_full(pthread_once_t *control, void (*init)(void))
+ {
+- /* Return immediately if init finished before, but ensure that
+- * effects of the init routine are visible to the caller. */
+- if (*control == 2) {
+- a_barrier();
+- return 0;
+- }
+-
+ /* Try to enter initializing state. Four possibilities:
+ * 0 - we're the first or the other cancelled; run init
+ * 1 - another thread is running init; wait
+@@ -43,4 +36,15 @@ int __pthread_once(pthread_once_t *contr
+ }
+ }
+
++int __pthread_once(pthread_once_t *control, void (*init)(void))
++{
++ /* Return immediately if init finished before, but ensure that
++ * effects of the init routine are visible to the caller. */
++ if (*control == 2) {
++ a_barrier();
++ return 0;
++ }
++ return __pthread_once_full(control, init);
++}
++
+ weak_alias(__pthread_once, pthread_once);
projects / openwrt / staging / adrian.git / commitdiff