--- /dev/null
+Index: glibc-2.10.1/sysdeps/nios2/Implies
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/Implies
+@@ -0,0 +1,4 @@
++wordsize-32
++ieee754/dbl-64
++ieee754/flt-32
++nios2/soft-fp
+Index: glibc-2.10.1/sysdeps/nios2/Makefile
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/Makefile
+@@ -0,0 +1,33 @@
++# Copyright (C) 1993, 1994, 1996, 1997, 2003, 2008 Free Software Foundation,
++# Inc.
++# This file is part of the GNU C Library.
++
++# The GNU C Library is free software; you can redistribute it and/or
++# modify it under the terms of the GNU Lesser General Public
++# License as published by the Free Software Foundation; either
++# version 2.1 of the License, or (at your option) any later version.
++
++# The GNU C Library is distributed in the hope that it will be useful,
++# but WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++# Lesser General Public License for more details.
++
++# You should have received a copy of the GNU Lesser General Public
++# License along with the GNU C Library; if not, write to the Free
++# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++# 02111-1307 USA.
++
++pic-ccflag = -fpic
++
++ifeq ($(subdir),elf)
++CFLAGS-rtld.c += -mhw-div
++endif
++
++ifeq ($(subdir),soft-fp)
++sysdep_routines += $(filter-out sqrtsf2,$(gcc-single-routines)) \
++ $(filter-out sqrtdf2,$(gcc-double-routines))
++endif
++
++ifeq ($(subdir),csu)
++gen-as-const-headers += tcb-offsets.sym
++endif
+Index: glibc-2.10.1/sysdeps/nios2/Subdirs
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/Subdirs
+@@ -0,0 +1 @@
++soft-fp
+Index: glibc-2.10.1/sysdeps/nios2/Versions
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/Versions
+@@ -0,0 +1,12 @@
++libc {
++ GLIBC_2.10 {
++ __adddf3; __addsf3; __divdf3; __divsf3; __eqdf2; __eqsf2; __extendsfdf2;
++ __fixdfdi; __fixdfsi; __fixsfdi; __fixsfsi;
++ __fixunsdfdi; __fixunsdfsi; __fixunssfdi; __fixunssfsi;
++ __floatdidf; __floatdisf; __floatsidf; __floatsisf;
++ __floatundidf; __floatundisf; __floatunsidf; __floatunsisf;
++ __gedf2; __gesf2; __gtdf2; __gtsf2; __ledf2; __lesf2; __ltdf2; __ltsf2;
++ __muldf3; __mulsf3; __nedf2; __nesf2; __negdf2; __negsf2;
++ __subdf3; __subsf3; __truncdfsf2; __unorddf2; __unordsf2;
++ }
++}
+Index: glibc-2.10.1/sysdeps/nios2/__longjmp.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/__longjmp.c
+@@ -0,0 +1,41 @@
++/* Copyright (C) 1991, 92, 93, 94, 95, 97, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <setjmp.h>
++#include <stdlib.h>
++
++/* Jump to the position specified by ENV, causing the
++ setjmp call there to return VAL, or 1 if VAL is 0. */
++void
++__longjmp (__jmp_buf env, int val)
++{
++ if (val == 0)
++ val = 1;
++ __asm__ volatile ("mov r2, %0" : : "r" (val));
++ __asm__ volatile ("ldw r16, %0" : : "m" (env[0].__regs[0]));
++ __asm__ volatile ("ldw r17, %0" : : "m" (env[0].__regs[1]));
++ __asm__ volatile ("ldw r18, %0" : : "m" (env[0].__regs[2]));
++ __asm__ volatile ("ldw r19, %0" : : "m" (env[0].__regs[3]));
++ __asm__ volatile ("ldw r20, %0" : : "m" (env[0].__regs[4]));
++ __asm__ volatile ("ldw r21, %0" : : "m" (env[0].__regs[5]));
++ __asm__ volatile ("ldw r22, %0" : : "m" (env[0].__regs[6]));
++ __asm__ volatile ("ldw r23, %0" : : "m" (env[0].__regs[7]));
++ __asm__ volatile ("ldw sp, %0" : : "m" (env[0].__regs[8]));
++ __asm__ volatile ("ldw fp, %0" : : "m" (env[0].__regs[9]));
++ __asm__ volatile ("ldw ra, %0" : : "m" (env[0].__regs[10]));
++}
+Index: glibc-2.10.1/sysdeps/nios2/bits/endian.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/bits/endian.h
+@@ -0,0 +1,12 @@
++/* The Nios II architecture has selectable endianness. */
++
++#ifndef _ENDIAN_H
++# error "Never use <bits/endian.h> directly; include <endian.h> instead."
++#endif
++
++#ifdef __nios2_big_endian__
++# define __BYTE_ORDER __BIG_ENDIAN
++#endif
++#ifdef __nios2_little_endian__
++# define __BYTE_ORDER __LITTLE_ENDIAN
++#endif
+Index: glibc-2.10.1/sysdeps/nios2/bits/link.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/bits/link.h
+@@ -0,0 +1,54 @@
++/* Copyright (C) 2009 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _LINK_H
++# error "Never include <bits/link.h> directly; use <link.h> instead."
++#endif
++
++/* Registers for entry into PLT on Nios II. */
++typedef struct La_nios2_regs
++{
++ uint32_t lr_reg[4]; /* r4 through r7 */
++ uint32_t lr_ra;
++ uint32_t lr_sp;
++} La_nios2_regs;
++
++/* Return values for calls from PLT on Nios II. */
++typedef struct La_nios2_retval
++{
++ uint32_t lrv_r2;
++ uint32_t lrv_r3;
++} La_nios2_retval;
++
++__BEGIN_DECLS
++
++extern Elf32_Addr la_nios2_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
++ uintptr_t *__refcook,
++ uintptr_t *__defcook,
++ La_nios2_regs *__regs,
++ unsigned int *__flags,
++ const char *__symname,
++ long int *__framesizep);
++extern unsigned int la_nios2_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
++ uintptr_t *__refcook,
++ uintptr_t *__defcook,
++ const La_nios2_regs *__inregs,
++ La_nios2_retval *__outregs,
++ const char *symname);
++
++__END_DECLS
+Index: glibc-2.10.1/sysdeps/nios2/bits/setjmp.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/bits/setjmp.h
+@@ -0,0 +1,35 @@
++/* Define the machine-dependent type `jmp_buf'. Nios II version.
++ Copyright (C) 1992,1993,1995,1997,2000,2002,2003,2004,2005,2006,2008
++ Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _NIOS2_BITS_SETJMP_H
++#define _NIOS2_BITS_SETJMP_H 1
++
++#if !defined(_SETJMP_H) && !defined(_PTHREAD_H)
++# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
++#endif
++
++typedef struct
++ {
++ /* r16,r17,r18,r19,r20,r21,r22,r23,sp,fp,ra */
++ int __regs[11];
++
++ } __jmp_buf[1];
++
++#endif /* _NIOS2_BITS_SETJMP_H */
+Index: glibc-2.10.1/sysdeps/nios2/bsd-_setjmp.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/bsd-_setjmp.S
+@@ -0,0 +1,40 @@
++/* BSD `_setjmp' entry point to `sigsetjmp (..., 1)'. NIOS2 version.
++ Copyright (C) 1996, 1997, 2000, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
++ We cannot do it in C because it must be a tail-call, so frame-unwinding
++ in setjmp doesn't clobber the state restored by longjmp. */
++
++#include <sysdep.h>
++
++ENTRY (_setjmp)
++ movi r5, 0 /* Pass a second argument of zero. */
++#if defined (__PIC__) || defined (PIC)
++ nextpc r2
++1: movhi r3, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r3, r3, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r2, r2, r3
++ ldw r2, %call(C_SYMBOL_NAME(__sigsetjmp))(r2)
++ jmp r2
++#else
++ jmpi C_SYMBOL_NAME (__sigsetjmp)
++#endif
++ .size setjmp, . - setjmp
++
++libc_hidden_def (_setjmp)
+Index: glibc-2.10.1/sysdeps/nios2/bsd-setjmp.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/bsd-setjmp.S
+@@ -0,0 +1,38 @@
++/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. NIOS2 version.
++ Copyright (C) 1996, 1997, 2000, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
++ We cannot do it in C because it must be a tail-call, so frame-unwinding
++ in setjmp doesn't clobber the state restored by longjmp. */
++
++#include <sysdep.h>
++
++ENTRY (setjmp)
++ movi r5, 1 /* Pass a second argument of one. */
++#if defined (__PIC__) || defined (PIC)
++ nextpc r2
++1: movhi r3, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r3, r3, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r2, r2, r3
++ ldw r2, %call(C_SYMBOL_NAME(__sigsetjmp))(r2)
++ jmp r2
++#else
++ jmpi C_SYMBOL_NAME (__sigsetjmp)
++#endif
++ .size setjmp, . - setjmp
+Index: glibc-2.10.1/sysdeps/nios2/dl-init.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/dl-init.c
+@@ -0,0 +1,30 @@
++/* Copyright (C) 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <elf/dl-init.c>
++
++unsigned int
++internal_function
++_dl_nios2_get_gp_value (struct link_map *main_map)
++{
++ ElfW(Dyn)* dyn = main_map->l_ld;
++ for (dyn = main_map->l_ld; dyn->d_tag != DT_NULL; ++dyn)
++ if (dyn->d_tag == DT_NIOS2_GP)
++ return (unsigned int)(dyn->d_un.d_ptr);
++ return 0;
++}
+Index: glibc-2.10.1/sysdeps/nios2/dl-machine.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/dl-machine.h
+@@ -0,0 +1,332 @@
++/* Machine-dependent ELF dynamic relocation inline functions. Nios II version.
++ Copyright (C) 1995, 1996, 1997, 1999, 2000, 2001, 2005
++ Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef dl_machine_h
++#define dl_machine_h
++
++#define ELF_MACHINE_NAME "nios2"
++
++#include <string.h>
++#include <link.h>
++#include <dl-tls.h>
++
++/* Return nonzero iff ELF header is compatible with the running host. */
++static inline int
++elf_machine_matches_host (const Elf32_Ehdr *ehdr)
++{
++ return ehdr->e_machine == EM_ALTERA_NIOS2;
++}
++
++
++/* Return the link-time address of _DYNAMIC. Conveniently, this is the
++ first element of the GOT. */
++static inline Elf32_Addr
++elf_machine_dynamic (void)
++{
++ Elf32_Addr *dynamic;
++ int tmp;
++ asm("nextpc\t%0\n\t"
++ "1: movhi\t%1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
++ "addi\t%1, %1, %%lo( _GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
++ "add\t%0, %0, %1\n"
++ : "=r" (dynamic), "=r" (tmp));
++ return *dynamic;
++}
++
++
++/* Return the run-time load address of the shared object. */
++static inline Elf32_Addr
++elf_machine_load_address (void)
++{
++ Elf32_Addr result;
++ int tmp;
++ asm("nextpc\t%0\n\t"
++ "1: movhi\t%1, %%hiadj(1b)\n\t"
++ "addi\t%1, %1, %%lo(1b)\n\t"
++ "sub\t%0, %0, %1\n"
++ : "=r" (result), "=r" (tmp));
++ return result;
++}
++
++/* Set up the loaded object described by L so its unrelocated PLT
++ entries will jump to the on-demand fixup code in dl-runtime.c. */
++
++static inline int
++elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
++{
++ extern void _dl_runtime_resolve (Elf32_Word);
++
++ if (lazy)
++ {
++ /* The GOT entries for functions in the PLT have not yet been filled
++ in. Their initial contents will arrange when called to load r15 with
++ an offset into the .got section, load r14 with
++ _GLOBAL_OFFSET_TABLE_[1], and then jump to _GLOBAL_OFFSET_TABLE[2].
++ */
++ Elf32_Addr *got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
++ got[1] = (Elf32_Addr) l; /* Identify this shared object. */
++
++ /* This function will get called to fix up the GOT entry indicated by
++ the offset on the stack, and then jump to the resolved address. */
++ got[2] = (Elf32_Addr) &_dl_runtime_resolve;
++ }
++
++ return lazy;
++}
++
++/* Initial entry point code for the dynamic linker.
++ The C function `_dl_start' is the real entry point;
++ its return value is the user program's entry point. */
++
++#define RTLD_START asm("\
++.text\n\
++.globl _start\n\
++.type _start, %function\n\
++_start:\n\
++ /* At start time, all the args are on the stack. */\n\
++ mov r4, sp\n\
++\n\
++ /* Start the calculation of the GOT pointer. */\n\
++ nextpc r22\n\
++1: movhi r8, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)\n\
++ addi r8, r8, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)\n\
++\n\
++ /* Figure out where _dl_start will need to return to. */\n\
++ movhi ra, %hiadj(2f - 1b)\n\
++ addi ra, ra, %lo(2f - 1b)\n\
++ add ra, ra, r22\n\
++\n\
++ /* Finish the calculation of the GOT pointer. */\n\
++ add r22, r22, r8\n\
++\n\
++ br _dl_start\n\
++\n\
++ /* Save the returned user entry point. */\n\
++2: mov r16, r2\n\
++\n\
++ /* Initialize gp. */\n\
++ ldw r4, %got(_rtld_local)(r22)\n\
++ ldw r4, 0(r4)\n\
++ ldw r8, %call(_dl_nios2_get_gp_value)(r22)\n\
++ callr r8\n\
++ mov gp, r2\n\
++\n\
++ /* Find the number of arguments to skip. */\n\
++ ldw r8, %got(_dl_skip_args)(r22)\n\
++ ldw r8, 0(r8)\n\
++\n\
++ /* Find the main_map from the GOT. */\n\
++ ldw r4, %got(_rtld_local)(r22)\n\
++ ldw r4, 0(r4)\n\
++\n\
++ /* Find argc. */\n\
++ ldw r5, 0(sp)\n\
++ sub r5, r5, r8\n\
++ stw r5, 0(sp)\n\
++\n\
++ /* Find the first unskipped argument. */\n\
++ slli r8, r8, 2\n\
++ addi r6, sp, 4\n\
++ add r9, r6, r8\n\
++ mov r10, r6\n\
++\n\
++ /* Shuffle argv down. */\n\
++3: ldw r11, 0(r9)\n\
++ stw r11, 0(r10)\n\
++ addi r9, r9, 4\n\
++ addi r10, r10, 4\n\
++ bne r11, zero, 3b\n\
++\n\
++ /* Shuffle envp down. */\n\
++ mov r7, r10\n\
++4: ldw r11, 0(r9)\n\
++ stw r11, 0(r10)\n\
++ addi r9, r9, 4\n\
++ addi r10, r10, 4\n\
++ bne r11, zero, 4b\n\
++\n\
++ /* Shuffle auxv down. */\n\
++5: ldw r11, 4(r9)\n\
++ stw r11, 4(r10)\n\
++ ldw r11, 0(r9)\n\
++ stw r11, 0(r10)\n\
++ addi r9, r9, 8\n\
++ addi r10, r10, 8\n\
++ bne r11, zero, 5b\n\
++\n\
++ /* Update _dl_argv. */\n\
++ ldw r2, %got(_dl_argv)(r22)\n\
++ stw r6, 0(r2)\n\
++\n\
++ /* Call _dl_init through the PLT. */\n\
++ ldw r8, %call(_dl_init)(r22)\n\
++ callr r8\n\
++\n\
++ /* Find the finalization function. */\n\
++ ldw r4, %got(_dl_fini)(r22)\n\
++\n\
++ /* Jump to the user's entry point. */\n\
++ jmp r16\n\
++");
++
++/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
++ PLT entries should not be allowed to define the value.
++ ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
++ of the main executable's symbols, as for a COPY reloc. */
++#define elf_machine_type_class(type) \
++ ((((type) == R_NIOS2_JUMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
++ | (((type) == R_NIOS2_COPY) * ELF_RTYPE_CLASS_COPY))
++
++/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
++#define ELF_MACHINE_JMP_SLOT R_NIOS2_JUMP_SLOT
++
++/* The Nios II never uses Elf32_Rel relocations. */
++#define ELF_MACHINE_NO_REL 1
++
++/* Fixup a PLT entry to bounce directly to the function at VALUE. */
++
++static inline Elf32_Addr
++elf_machine_fixup_plt (struct link_map *map, lookup_t t,
++ const Elf32_Rel *reloc,
++ Elf32_Addr *reloc_addr, Elf32_Addr value)
++{
++ return *reloc_addr = value;
++}
++
++/* Return the final value of a plt relocation. */
++static inline Elf32_Addr
++elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
++ Elf32_Addr value)
++{
++ return value;
++}
++
++/* Names of the architecture-specific auditing callback functions. */
++#define ARCH_LA_PLTENTER nios2_gnu_pltenter
++#define ARCH_LA_PLTEXIT nios2_gnu_pltexit
++
++#endif /* dl_machine_h */
++
++#ifdef RESOLVE_MAP
++
++/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
++ LOADADDR is the load address of the object; INFO is an array indexed
++ by DT_* of the .dynamic section info. */
++
++auto inline void __attribute__ ((always_inline))
++elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
++ const ElfW(Sym) *sym, const struct r_found_version *version,
++ void *const reloc_addr_arg)
++{
++ Elf32_Addr *const reloc_addr = reloc_addr_arg;
++ const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
++
++ if (__builtin_expect (r_type == R_NIOS2_RELATIVE, 0))
++ *reloc_addr = map->l_addr + reloc->r_addend;
++ else if (__builtin_expect (r_type == R_NIOS2_NONE, 0))
++ return;
++ else
++ {
++ const Elf32_Sym *const refsym = sym;
++ struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
++ Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
++
++ switch (r_type)
++ {
++ case R_NIOS2_COPY:
++ if (sym == NULL)
++ /* This can happen in trace mode if an object could not be
++ found. */
++ break;
++ if (sym->st_size > refsym->st_size
++ || (sym->st_size < refsym->st_size && GLRO(dl_verbose)))
++ {
++ const char *strtab;
++
++ strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
++ _dl_error_printf ("\
++%s: Symbol `%s' has different size in shared object, consider re-linking\n",
++ rtld_progname ?: "<program name unknown>",
++ strtab + refsym->st_name);
++ }
++ memcpy (reloc_addr_arg, (void *) value,
++ MIN (sym->st_size, refsym->st_size));
++ break;
++ case R_NIOS2_GLOB_DAT:
++ case R_NIOS2_JUMP_SLOT:
++# ifdef RTLD_BOOTSTRAP
++ /* Fix weak undefined references. */
++ if (sym != NULL && sym->st_value == 0)
++ *reloc_addr = 0;
++ else
++# endif
++ *reloc_addr = value;
++ break;
++#if defined USE_TLS && !defined RTLD_BOOTSTRAP
++ case R_NIOS2_TLS_DTPMOD:
++ /* Get the information from the link map returned by the
++ resolv function. */
++ if (sym_map != NULL)
++ *reloc_addr = sym_map->l_tls_modid;
++ break;
++
++ case R_NIOS2_TLS_DTPREL:
++ *reloc_addr = reloc->r_addend + TLS_DTPREL_VALUE(sym);
++ break;
++
++ case R_NIOS2_TLS_TPREL:
++ if (sym != NULL)
++ {
++ CHECK_STATIC_TLS (map, sym_map);
++ *reloc_addr = reloc->r_addend + TLS_TPREL_VALUE(sym_map, sym);
++ }
++ break;
++#endif
++ case R_NIOS2_BFD_RELOC_32:
++ *reloc_addr = value + reloc->r_addend;
++ break;
++
++ default:
++ _dl_reloc_bad_type (map, r_type, 0);
++ break;
++ }
++ }
++}
++
++auto inline void __attribute__((always_inline))
++ elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
++ void *const reloc_addr_arg)
++{
++ Elf32_Addr *const reloc_addr = reloc_addr_arg;
++ *reloc_addr = l_addr + reloc->r_addend;
++}
++
++auto inline void __attribute__((always_inline))
++ elf_machine_lazy_rel (struct link_map *map,
++ ElfW(Addr) l_addr, const ElfW(Rela) *reloc)
++{
++ Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
++ if (ELF32_R_TYPE (reloc->r_info) == R_NIOS2_JUMP_SLOT)
++ *reloc_addr += l_addr;
++ else
++ _dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 1);
++}
++
++#endif /* RESOLVE_MAP */
+Index: glibc-2.10.1/sysdeps/nios2/dl-sysdep.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/dl-sysdep.h
+@@ -0,0 +1,24 @@
++/* System-specific settings for dynamic linker code. Nios II version.
++ Copyright (C) 2009 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include_next <dl-sysdep.h>
++
++/* _dl_argv cannot be attribute_relro, because _dl_start_user
++ might write into it after _dl_start returns. */
++#define DL_ARGV_NOT_RELRO 1
+Index: glibc-2.10.1/sysdeps/nios2/dl-tls.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/dl-tls.h
+@@ -0,0 +1,46 @@
++/* Thread-local storage handling in the ELF dynamic linker. Nios II version.
++ Copyright (C) 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++
++/* Type used for the representation of TLS information in the GOT. */
++typedef struct
++{
++ unsigned long int ti_module;
++ unsigned long int ti_offset;
++} tls_index;
++
++/* The thread pointer points 0x7000 past the first static TLS block. */
++#define TLS_TP_OFFSET 0x7000
++
++/* Dynamic thread vector pointers point 0x8000 past the start of each
++ TLS block. */
++#define TLS_DTV_OFFSET 0x8000
++
++/* Compute the value for a GOTTPREL reloc. */
++#define TLS_TPREL_VALUE(sym_map, sym) \
++ ((sym_map)->l_tls_offset + (sym)->st_value - TLS_TP_OFFSET)
++
++/* Compute the value for a DTPREL reloc. */
++#define TLS_DTPREL_VALUE(sym) \
++ ((sym)->st_value - TLS_DTV_OFFSET)
++
++extern void *__tls_get_addr (tls_index *ti);
++
++# define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET)
++# define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET)
+Index: glibc-2.10.1/sysdeps/nios2/dl-trampoline.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/dl-trampoline.S
+@@ -0,0 +1,80 @@
++/* PLT trampolines. Nios II version.
++ Copyright (C) 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++#include <libc-symbols.h>
++
++ .text
++ .globl _dl_runtime_resolve
++ cfi_startproc
++_dl_runtime_resolve:
++/* The runtime resolver receives the original function arguments in r4
++ through r7, the shared library identifier from GOT[1]? in r14, and the
++ relocation index times four in r15. It updates the corresponding PLT GOT
++ entry so that the PLT entry will transfer control directly to the target
++ in the future, and then transfers control to the target. */
++ /* Save arguments and return address. */
++ subi sp, sp, 28
++ cfi_adjust_cfa_offset (28)
++ stw r22, 24(sp)
++ cfi_rel_offset (r22, 24)
++ stw r8, 20(sp) /* save r8, because this might be a call to mcount */
++ cfi_rel_offset (r8, 20)
++ stw r7, 16(sp)
++ cfi_rel_offset (r7, 16)
++ stw r6, 12(sp)
++ cfi_rel_offset (r6, 12)
++ stw r5, 8(sp)
++ cfi_rel_offset (r5, 8)
++ stw r4, 4(sp)
++ cfi_rel_offset (r4, 4)
++ stw ra, 0(sp)
++ cfi_rel_offset (ra, 0)
++
++ /* Get pointer to linker struct. */
++ mov r4, r14
++
++ /* Get the relocation offset. We're given a multiple of 4 and
++ need a multiple of 12, so multiply by 3. */
++ slli r5, r15, 1
++ add r5, r5, r15
++
++ /* Call the fixup routine. */
++ nextpc r22
++1: movhi r2, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r2, r2, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r22, r22, r2
++ ldw r2, %call(_dl_fixup)(r22)
++ callr r2
++
++ /* Restore the arguments and return address. */
++ ldw ra, 0(sp)
++ ldw r4, 4(sp)
++ ldw r5, 8(sp)
++ ldw r6, 12(sp)
++ ldw r7, 16(sp)
++ ldw r8, 20(sp)
++ ldw r22, 24(sp)
++ addi sp, sp, 28
++ cfi_adjust_cfa_offset (-28)
++
++ /* Jump to the newly found address. */
++ jmp r2
++
++ cfi_endproc
+Index: glibc-2.10.1/sysdeps/nios2/elf/start.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/elf/start.S
+@@ -0,0 +1,132 @@
++/* Startup code for Nios II
++ Copyright (C) 1995, 1996, 1997, 1998, 2001, 2002, 2005
++ Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ In addition to the permissions in the GNU Lesser General Public
++ License, the Free Software Foundation gives you unlimited
++ permission to link the compiled version of this file with other
++ programs, and to distribute those programs without any restriction
++ coming from the use of this file. (The GNU Lesser General Public
++ License restrictions do apply in other respects; for example, they
++ cover modification of the file, and distribution when not linked
++ into another program.)
++
++ Note that people who make modified versions of this file are not
++ obligated to grant this special exception for their modified
++ versions; it is their choice whether to do so. The GNU Lesser
++ General Public License gives permission to release a modified
++ version without this exception; this exception also makes it
++ possible to release a modified version which carries forward this
++ exception.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* This is the canonical entry point, usually the first thing in the text
++ segment.
++
++ Note that the code in the .init section has already been run.
++ This includes _init and _libc_init
++
++ The stack pointer, sp, will point to the argument count on the stack.
++ The initial state of the stack when a userspace process is started is:
++
++ Purpose Start Address Length
++ Unspecified High Addresses
++ Referenced strings, etc. Varies
++ Unspecified
++ Null auxilliary vector entry 4bytes
++ Auxilliary vector entries 8bytes each
++ NULL terminator for envp 4bytes
++ Environment pointers sp+8+4*argc 4bytes each
++ NULL terminator for argv sp+4+4*argc 4bytes
++ Argument pointers sp+4 4bytes each
++ Argument count sp 4bytes
++ Unspecified Low Addresses
++
++ If the application should register a destructor function with atexit,
++ the pointer will be placed in r4. Otherwise r4 will be zero.
++
++ The contents of all other registers are unspecified. User code should
++ set fp to zero to mark the end of the frame chain.
++
++ The auxilliary vector is a series of pairs of 32-bit tag and 32-bit
++ value, terminated by an AT_NULL tag.
++*/
++
++ .text
++ .globl _start
++_start:
++ /* Set up the global pointer. */
++ movhi gp, %hiadj(_gp)
++ addi gp, gp, %lo(_gp)
++
++ /* Save the stack pointer. */
++ mov r2, sp
++
++ /* Create room on the stack for the fini, rtld_fini and stack_end args
++ to __libc_start_main. */
++ subi sp, sp, 12
++
++ /* Push stack_end */
++ stw r2, 8(sp)
++
++ /* Push rtld_fini */
++ stw r4, 4(sp)
++
++ /* Set up the GOT pointer. */
++ nextpc r22
++1: movhi r2, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r2, r2, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r22, r22, r2
++
++ /* Push fini */
++ ldw r8, %call(__libc_csu_fini)(r22)
++ stw r8, 0(sp)
++
++ /* r7 == init */
++ ldw r7, %call(__libc_csu_init)(r22)
++
++ /* r6 == argv */
++ addi r6, sp, 16
++
++ /* r5 == argc */
++ ldw r5, 12(sp)
++
++ /* r4 == main */
++ ldw r4, %call(main)(r22)
++
++ /* fp == 0 */
++ mov fp, zero
++
++ /* __libc_start_main (main, argc, argv, init, fini, rtld_fini,
++ stack_end) */
++
++ /* Let the libc call main and exit with its return code. */
++ ldw r2, %call(__libc_start_main)(r22)
++ callr r2
++
++ /* should never get here....*/
++ ldw r2, %call(abort)(r22)
++ callr r2
++
++/* Define a symbol for the first piece of initialized data. */
++ .data
++ .globl __data_start
++__data_start:
++ .long 0
++ .weak data_start
++ data_start = __data_start
+Index: glibc-2.10.1/sysdeps/nios2/jmpbuf-offsets.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/jmpbuf-offsets.h
+@@ -0,0 +1,20 @@
++/* Private macros for accessing __jmp_buf contents. Nios II version.
++ Copyright (C) 2006, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#define __JMP_BUF_SP 8
+Index: glibc-2.10.1/sysdeps/nios2/jmpbuf-unwind.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/jmpbuf-unwind.h
+@@ -0,0 +1,36 @@
++/* Copyright (C) 2005,2006 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <setjmp.h>
++#include <jmpbuf-offsets.h>
++#include <stdint.h>
++#include <unwind.h>
++
++/* Test if longjmp to JMPBUF would unwind the frame
++ containing a local variable at ADDRESS. */
++#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
++ ((void *) (address) < (void *) demangle ((jmpbuf)->__regs[__JMP_BUF_SP]))
++
++#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
++ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
++
++#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
++ ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)->__regs[__JMP_BUF_SP] - (_adj))
++
++/* We use the normal longjmp for unwinding. */
++#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
+Index: glibc-2.10.1/sysdeps/nios2/ldsodefs.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/ldsodefs.h
+@@ -0,0 +1,42 @@
++/* Run-time dynamic linker data structures for loaded ELF shared objects.
++ Copyright (C) 2000, 2002, 2003, 2006, 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _NIOS2_LDSODEFS_H
++#define _NIOS2_LDSODEFS_H 1
++
++struct La_nios2_regs;
++struct La_nios2_retval;
++
++#define ARCH_PLTENTER_MEMBERS \
++ Elf32_Addr (*nios2_gnu_pltenter) (Elf32_Sym *, unsigned int, \
++ uintptr_t *, uintptr_t *, \
++ const struct La_nios2_regs *, \
++ unsigned int *, const char *name, \
++ long int *framesizep);
++
++#define ARCH_PLTEXIT_MEMBERS \
++ unsigned int (*nios2_gnu_pltexit) (Elf64_Sym *, unsigned int, \
++ uintptr_t *, uintptr_t *, \
++ const struct La_nios2_regs *, \
++ struct La_nios2_retval *, \
++ const char *);
++
++#include_next <ldsodefs.h>
++
++#endif
+Index: glibc-2.10.1/sysdeps/nios2/libc-tls.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/libc-tls.c
+@@ -0,0 +1,37 @@
++/* Thread-local storage handling in the ELF dynamic linker. Nios II version.
++ Copyright (C) 2005, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <csu/libc-tls.c>
++#include <dl-tls.h>
++
++#if USE_TLS
++
++/* On Nios II, linker optimizations are not required, so __tls_get_addr
++ can be called even in statically linked binaries. In this case module
++ must be always 1 and PT_TLS segment exist in the binary, otherwise it
++ would not link. */
++
++void *
++__tls_get_addr (tls_index *ti)
++{
++ dtv_t *dtv = THREAD_DTV ();
++ return (char *) dtv[1].pointer.val + GET_ADDR_OFFSET;
++}
++
++#endif
+Index: glibc-2.10.1/sysdeps/nios2/machine-gmon.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/machine-gmon.h
+@@ -0,0 +1,67 @@
++/* Machine-dependent definitions for profiling support. Nios II version.
++ Copyright (C) 1996, 1997, 1998, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++
++#define _MCOUNT_DECL(frompc, selfpc) \
++static void __attribute_used__ mcount_internal (u_long frompc, u_long selfpc)
++
++/* This macro/func MUST save r4, r5, r6, r7 and r8 because the compiler inserts
++ blind calls to mcount(), ignoring the fact that mcount may clobber
++ registers; therefore, mcount may NOT clobber registers. */
++
++#if defined(__PIC__) || defined(PIC)
++#define NIOS2_MCOUNT_CALL \
++ "nextpc r3\n\t" \
++ "1: movhi r2, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t" \
++ "addi r2, r2, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t" \
++ "add r2, r2, r3\n\t" \
++ "ldw r2, %call(mcount_internal)(r2)\n\t" \
++ "callr r2\n\t"
++#else
++#define NIOS2_MCOUNT_CALL \
++ "call\tmcount_internal\n\t"
++#endif
++
++#define MCOUNT \
++asm( \
++ ".globl _mcount\n\t" \
++ ".type _mcount,@function\n\t" \
++ "_mcount:\n\t" \
++ "subi sp, sp, 24\n\t" \
++ "stw ra, 20(sp)\n\t" \
++ "stw r8, 16(sp)\n\t" \
++ "stw r7, 12(sp)\n\t" \
++ "stw r6, 8(sp)\n\t" \
++ "stw r5, 4(sp)\n\t" \
++ "stw r4, 0(sp)\n\t" \
++ "mov r4, r8\n\t" \
++ "mov r5, ra\n\t" \
++ NIOS2_MCOUNT_CALL \
++ "ldw ra, 20(sp)\n\t" \
++ "ldw r8, 16(sp)\n\t" \
++ "ldw r7, 12(sp)\n\t" \
++ "ldw r6, 8(sp)\n\t" \
++ "ldw r5, 4(sp)\n\t" \
++ "ldw r4, 0(sp)\n\t" \
++ "addi sp, sp, 24\n\t" \
++ "ret\n\t" \
++ ".size _mcount, . - _mcount\n\t" \
++);
++
+Index: glibc-2.10.1/sysdeps/nios2/memusage.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/memusage.h
+@@ -0,0 +1,24 @@
++/* Copyright (C) 2000 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++
++#define GETSP() ({ register uintptr_t stack_ptr asm ("%sp"); stack_ptr; })
++
++#define uatomic32_t unsigned int
++
++#include <sysdeps/generic/memusage.h>
+Index: glibc-2.10.1/sysdeps/nios2/nptl/pthread_spin_lock.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/nptl/pthread_spin_lock.c
+@@ -0,0 +1,30 @@
++/* Copyright (C) 2005, 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <atomic.h>
++#include "pthreadP.h"
++
++int
++pthread_spin_lock (pthread_spinlock_t *lock)
++{
++ while (atomic_compare_and_exchange_val_acq(lock, 1, 0) != 0)
++ while (*lock != 0)
++ ;
++
++ return 0;
++}
+Index: glibc-2.10.1/sysdeps/nios2/nptl/pthread_spin_trylock.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/nptl/pthread_spin_trylock.c
+@@ -0,0 +1,27 @@
++/* Copyright (C) 2005, 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <errno.h>
++#include <atomic.h>
++#include "pthreadP.h"
++
++int
++pthread_spin_trylock (pthread_spinlock_t *lock)
++{
++ return atomic_compare_and_exchange_val_acq(lock, 1, 0) ? EBUSY : 0;
++}
+Index: glibc-2.10.1/sysdeps/nios2/nptl/pthreaddef.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/nptl/pthreaddef.h
+@@ -0,0 +1,46 @@
++/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* Default stack size. */
++#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
++
++/* Required stack pointer alignment at beginning. */
++#define STACK_ALIGN 4
++
++/* Minimal stack size after allocating thread descriptor and guard size. */
++#define MINIMAL_REST_STACK 2048
++
++/* Alignment requirement for TCB. */
++#define TCB_ALIGNMENT 4
++
++
++/* Location of current stack frame.
++
++ __builtin_frame_address (0) returns the value of the hard frame
++ pointer, which will point at the location of the saved PC on the
++ stack. Below this in memory is the remainder of the linkage info,
++ occupying 12 bytes. Therefore in order to address from
++ CURRENT_STACK_FRAME using "struct layout", we need to have the macro
++ return the hard FP minus 12. Of course, this makes no sense
++ without the obsolete APCS stack layout... */
++#define CURRENT_STACK_FRAME (__builtin_frame_address (0) - 12)
++
++
++/* XXX Until we have a better place keep the definitions here. */
++#define __exit_thread_inline(val) \
++ INLINE_SYSCALL (exit, 1, (val))
+Index: glibc-2.10.1/sysdeps/nios2/nptl/tcb-offsets.sym
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/nptl/tcb-offsets.sym
+@@ -0,0 +1,13 @@
++#include <sysdep.h>
++#include <tls.h>
++
++--
++
++-- Abuse tls.h macros to derive offsets relative to the thread register.
++# undef __thread_self
++# define __thread_self ((void *) 0)
++# define thread_offsetof(mem) ((ptrdiff_t) THREAD_SELF + offsetof (struct pthread, mem))
++
++MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
++PID_OFFSET thread_offsetof (pid)
++TID_OFFSET thread_offsetof (tid)
+Index: glibc-2.10.1/sysdeps/nios2/nptl/tls.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/nptl/tls.h
+@@ -0,0 +1,161 @@
++/* Definition for thread-local data handling. NPTL/Nios II version.
++ Copyright (C) 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _TLS_H
++#define _TLS_H 1
++
++#include <dl-sysdep.h>
++
++#ifndef __ASSEMBLER__
++# include <stdbool.h>
++# include <stddef.h>
++# include <stdint.h>
++
++/* Type for the dtv. */
++typedef union dtv
++{
++ size_t counter;
++ struct
++ {
++ void *val;
++ bool is_static;
++ } pointer;
++} dtv_t;
++
++#else /* __ASSEMBLER__ */
++# include <tcb-offsets.h>
++#endif /* __ASSEMBLER__ */
++
++
++/* Signal that TLS support is available. */
++# define USE_TLS 1
++
++#ifndef __ASSEMBLER__
++
++/* Get system call information. */
++# include <sysdep.h>
++
++/* The TP points to the start of the thread blocks. */
++# define TLS_DTV_AT_TP 1
++
++/* Get the thread descriptor definition. */
++# include <nptl/descr.h>
++
++typedef struct
++{
++ dtv_t *dtv;
++ void *private;
++} tcbhead_t;
++
++register struct pthread *__thread_self __asm__("r23");
++
++/* This is the size of the initial TCB. Because our TCB is before the thread
++ pointer, we don't need this. */
++# define TLS_INIT_TCB_SIZE 0
++
++/* Alignment requirements for the initial TCB. */
++# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
++
++/* This is the size of the TCB. Because our TCB is before the thread
++ pointer, we don't need this. */
++# define TLS_TCB_SIZE 0
++
++/* This is the size we need before TCB - actually, it includes the TCB. */
++# define TLS_PRE_TCB_SIZE \
++ (sizeof (struct pthread) \
++ + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
++
++/* The thread pointer (in hardware register r23) points to the end of
++ the TCB + 0x7000, as for PowerPC and MIPS. */
++# define TLS_TCB_OFFSET 0x7000
++
++/* Alignment requirements for the TCB. */
++# define TLS_TCB_ALIGN __alignof__ (struct pthread)
++
++/* Install the dtv pointer. The pointer passed is to the element with
++ index -1 which contain the length. */
++# define INSTALL_DTV(tcbp, dtvp) \
++ (((tcbhead_t *) (tcbp))[-1].dtv = (dtvp) + 1)
++
++/* Install new dtv for current thread. */
++# define INSTALL_NEW_DTV(dtv) \
++ (THREAD_DTV() = (dtv))
++
++/* Return dtv of given thread descriptor. */
++# define GET_DTV(tcbp) \
++ (((tcbhead_t *) (tcbp))[-1].dtv)
++
++/* Code to initially initialize the thread pointer. */
++# define TLS_INIT_TP(tcbp, secondcall) \
++ (__thread_self = (struct pthread *) ((char *) tcbp + TLS_TCB_OFFSET), NULL)
++
++/* Return the address of the dtv for the current thread. */
++# define THREAD_DTV() \
++ (((tcbhead_t *) ((struct pthread *) ((char *) __thread_self \
++ - TLS_TCB_OFFSET)))[-1].dtv)
++
++/* Return the thread descriptor for the current thread. */
++# define THREAD_SELF \
++ ((struct pthread *) ((char *) __thread_self - TLS_TCB_OFFSET - \
++ TLS_PRE_TCB_SIZE))
++
++/* Magic for libthread_db to know how to do THREAD_SELF. */
++# define DB_THREAD_SELF \
++ REGISTER (32, 32, 23 * 4, -TLS_PRE_TCB_SIZE - TLS_TCB_OFFSET)
++
++/* Access to data in the thread descriptor is easy. */
++#define THREAD_GETMEM(descr, member) \
++ descr->member
++#define THREAD_GETMEM_NC(descr, member, idx) \
++ descr->member[idx]
++#define THREAD_SETMEM(descr, member, value) \
++ descr->member = (value)
++#define THREAD_SETMEM_NC(descr, member, idx, value) \
++ descr->member[idx] = (value)
++
++/* Initializing the thread pointer will generate a SIGILL if the syscall
++ is not available. */
++#define TLS_INIT_TP_EXPENSIVE 1
++
++/* Get and set the global scope generation counter in struct pthread. */
++#define THREAD_GSCOPE_FLAG_UNUSED 0
++#define THREAD_GSCOPE_FLAG_USED 1
++#define THREAD_GSCOPE_FLAG_WAIT 2
++#define THREAD_GSCOPE_RESET_FLAG() \
++ do \
++ { int __res \
++ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
++ THREAD_GSCOPE_FLAG_UNUSED); \
++ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
++ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
++ } \
++ while (0)
++#define THREAD_GSCOPE_SET_FLAG() \
++ do \
++ { \
++ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
++ atomic_write_barrier (); \
++ } \
++ while (0)
++#define THREAD_GSCOPE_WAIT() \
++ GL(dl_wait_lookup_done) ()
++
++#endif /* __ASSEMBLER__ */
++
++#endif /* tls.h */
+Index: glibc-2.10.1/sysdeps/nios2/setjmp.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/setjmp.S
+@@ -0,0 +1,53 @@
++/* Copyright (C) 1991, 1992, 1994, 1997, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA.
++*/
++
++/* Save the current program position in ENV and return 0. */
++ .text
++ .globl __sigsetjmp
++__sigsetjmp:
++ stw r16, 0(r4)
++ stw r17, 4(r4)
++ stw r18, 8(r4)
++ stw r19, 12(r4)
++ stw r20, 16(r4)
++ stw r21, 20(r4)
++ stw r22, 24(r4)
++ stw r23, 28(r4)
++ stw sp, 32(r4)
++ stw fp, 36(r4)
++ stw ra, 40(r4)
++#if defined NOT_IN_libc && defined IS_IN_rtld
++ /* In ld.so we never save the signal mask. */
++ mov r2, zero
++ ret
++#else
++ /* Save the signal mask if requested. */
++#if defined(__PIC__) || defined(PIC)
++ nextpc r2
++1: movhi r3, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r3, r3, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r2, r2, r3
++ ldw r2, %call(__sigjmp_save)(r2)
++ jmp r2
++#else
++ jmpi __sigjmp_save
++#endif
++#endif
++
++libc_hidden_def (__sigsetjmp)
+Index: glibc-2.10.1/sysdeps/nios2/shlib-versions
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/shlib-versions
+@@ -0,0 +1 @@
++nios2-.*-linux.* DEFAULT GLIBC_2.10
+Index: glibc-2.10.1/sysdeps/nios2/soft-fp/sfp-machine.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/soft-fp/sfp-machine.h
+@@ -0,0 +1,41 @@
++#define _FP_W_TYPE_SIZE 32
++#define _FP_W_TYPE unsigned long
++#define _FP_WS_TYPE signed long
++#define _FP_I_TYPE long
++
++#define _FP_MUL_MEAT_S(R,X,Y) \
++ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
++#define _FP_MUL_MEAT_D(R,X,Y) \
++ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
++#define _FP_MUL_MEAT_Q(R,X,Y) \
++ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
++
++#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
++#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
++#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
++
++#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
++#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
++#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
++#define _FP_NANSIGN_S 0
++#define _FP_NANSIGN_D 0
++#define _FP_NANSIGN_Q 0
++
++#define _FP_KEEPNANFRACP 1
++
++/* This is arbitrarily taken from the PowerPC version. */
++#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
++ do { \
++ if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
++ && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
++ { \
++ R##_s = Y##_s; \
++ _FP_FRAC_COPY_##wc(R,Y); \
++ } \
++ else \
++ { \
++ R##_s = X##_s; \
++ _FP_FRAC_COPY_##wc(R,X); \
++ } \
++ R##_c = FP_CLS_NAN; \
++ } while (0)
+Index: glibc-2.10.1/sysdeps/nios2/stackinfo.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/stackinfo.h
+@@ -0,0 +1,28 @@
++/* Copyright (C) 2001, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* This file contains a bit of information about the stack allocation
++ of the processor. */
++
++#ifndef _STACKINFO_H
++#define _STACKINFO_H 1
++
++/* On Nios II the stack grows down. */
++#define _STACK_GROWS_DOWN 1
++
++#endif /* stackinfo.h */
+Index: glibc-2.10.1/sysdeps/nios2/tls-macros.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/tls-macros.h
+@@ -0,0 +1,46 @@
++#define TLS_LE(x) \
++ ({ int *__result; \
++ asm ("addi %0, r23, %%tls_le(" #x ")" \
++ : "=r" (__result)); \
++ __result; })
++
++#define TLS_IE(x) \
++ ({ int *__result; \
++ int __tmp; \
++ asm ("nextpc %0 ; " \
++ "1: movhi %1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "addi %1, %1, %%lo(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "add %0, %0, %1 ; " \
++ "ldw %1, %%tls_ie(" #x ")(%0) ; " \
++ "add %1, r23, %1" \
++ : "=&r" (__tmp), "=&r" (__result)); \
++ __result; })
++
++#define TLS_LD(x) \
++ ({ char *__result; \
++ char *__result2; \
++ int *__result3; \
++ int __tmp; \
++ extern void *__tls_get_addr (void *); \
++ asm ("nextpc %0 ; " \
++ "1: movhi %1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "addi %1, %1, %%lo(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "add %0, %0, %1 ; " \
++ "addi %0, %0, %%tls_ldm(" #x ")" \
++ : "=r" (__result), "=r" (__tmp)); \
++ __result2 = (char *)__tls_get_addr (__result); \
++ asm ("addi %0, %1, %%tls_ldo(" #x ")" \
++ : "=r" (__result3) : "r" (__result2)); \
++ __result3; })
++
++#define TLS_GD(x) \
++ ({ int *__result; \
++ int __tmp; \
++ extern void *__tls_get_addr (void *); \
++ asm ("nextpc %0 ; " \
++ "1: movhi %1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "addi %1, %1, %%lo(_GLOBAL_OFFSET_TABLE_ - 1b) ; " \
++ "add %0, %0, %1 ; " \
++ "addi %0, %0, %%tls_gd(" #x ")" \
++ : "=r" (__result), "=r" (__tmp)); \
++ (int *)__tls_get_addr (__result); })
+Index: glibc-2.10.1/sysdeps/nios2/tst-audit.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/nios2/tst-audit.h
+@@ -0,0 +1,26 @@
++/* Definitions for testing PLT entry/exit auditing. Nios II version.
++
++ Copyright (C) 2009 Free Software Foundation, Inc.
++
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#define pltenter la_nios2_gnu_pltenter
++#define pltexit la_nios2_gnu_pltexit
++#define La_regs La_nios2_regs
++#define La_retval La_nios2_retval
++#define int_retval lrv_r2
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/atomic.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/atomic.h
+@@ -0,0 +1,113 @@
++/* Copyright (C) 2003, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <stdint.h>
++
++typedef int8_t atomic8_t;
++typedef uint8_t uatomic8_t;
++typedef int_fast8_t atomic_fast8_t;
++typedef uint_fast8_t uatomic_fast8_t;
++
++typedef int16_t atomic16_t;
++typedef uint16_t uatomic16_t;
++typedef int_fast16_t atomic_fast16_t;
++typedef uint_fast16_t uatomic_fast16_t;
++
++typedef int32_t atomic32_t;
++typedef uint32_t uatomic32_t;
++typedef int_fast32_t atomic_fast32_t;
++typedef uint_fast32_t uatomic_fast32_t;
++
++typedef intptr_t atomicptr_t;
++typedef uintptr_t uatomicptr_t;
++typedef intmax_t atomic_max_t;
++typedef uintmax_t uatomic_max_t;
++
++void __nios2_link_error (void);
++
++#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
++ (abort (), 0)
++
++#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
++ (abort (), 0)
++
++#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
++ (!__sync_bool_compare_and_swap ((mem), (int) (long) (oldval), \
++ (int) (long) (newval)))
++
++#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
++ ({ __nios2_link_error (); oldval; })
++
++#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
++ (abort (), (__typeof (*mem)) 0)
++
++#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
++ (abort (), (__typeof (*mem)) 0)
++
++#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
++ __sync_val_compare_and_swap ((mem), (int) (long) (oldval), \
++ (int) (long) (newval))
++
++#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
++ ({ __nios2_link_error (); oldval; })
++
++/* Atomically store newval and return the old value. */
++#define atomic_exchange_acq(mem, value) \
++ __sync_lock_test_and_set (mem, value)
++
++#define atomic_exchange_rel(mem, value) \
++ (__sync_synchronize (), __sync_lock_test_and_set (mem, value))
++
++#define atomic_exchange_and_add(mem, value) \
++ ({ __typeof (*mem) __result; \
++ __result = __sync_fetch_and_add ((mem), (int) (value)); \
++ __result; })
++
++#define atomic_decrement_if_positive(mem) \
++ ({ __typeof (*mem) __oldval, __val; \
++ __typeof (mem) __memp = (mem); \
++ \
++ __val = (*__memp); \
++ do \
++ { \
++ __oldval = __val; \
++ if (__builtin_expect (__val <= 0, 0)) \
++ break; \
++ __val = atomic_compare_and_exchange_val_acq (__memp, __oldval - 1, \
++ __oldval); \
++ } \
++ while (__builtin_expect (__val != __oldval, 0)); \
++ __oldval; })
++
++#define atomic_bit_test_set(mem, bit) \
++ ({ __typeof (*mem) __oldval, __val; \
++ __typeof (mem) __memp = (mem); \
++ __typeof (*mem) __mask = ((__typeof (*mem)) 1 << (bit)); \
++ \
++ __val = (*__memp); \
++ do \
++ { \
++ __oldval = __val; \
++ __val = atomic_compare_and_exchange_val_acq (__memp, \
++ __oldval | __mask, \
++ __oldval); \
++ } \
++ while (__builtin_expect (__val != __oldval, 0)); \
++ __oldval & __mask; })
++
++#define atomic_full_barrier() __sync_synchronize ()
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/fcntl.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/fcntl.h
+@@ -0,0 +1,238 @@
++/* O_*, F_*, FD_* bit values for Linux.
++ Copyright (C) 1995-1998, 2000, 2004, 2006, 2008 Free Software Foundation,
++ Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _FCNTL_H
++# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
++#endif
++
++#include <sys/types.h>
++#ifdef __USE_GNU
++# include <bits/uio.h>
++#endif
++
++
++/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
++ located on an ext2 file system */
++#define O_ACCMODE 0003
++#define O_RDONLY 00
++#define O_WRONLY 01
++#define O_RDWR 02
++#define O_CREAT 0100 /* not fcntl */
++#define O_EXCL 0200 /* not fcntl */
++#define O_NOCTTY 0400 /* not fcntl */
++#define O_TRUNC 01000 /* not fcntl */
++#define O_APPEND 02000
++#define O_NONBLOCK 04000
++#define O_NDELAY O_NONBLOCK
++#define O_SYNC 010000
++#define O_FSYNC O_SYNC
++#define O_ASYNC 020000
++
++#ifdef __USE_GNU
++# define O_DIRECTORY 040000 /* Must be a directory. */
++# define O_NOFOLLOW 0100000 /* Do not follow links. */
++# define O_DIRECT 0200000 /* Direct disk access. */
++# define O_NOATIME 01000000 /* Do not set atime. */
++# define O_CLOEXEC 02000000 /* Set close_on_exec. */
++#endif
++
++/* For now Linux has synchronisity options for data and read operations.
++ We define the symbols here but let them do the same as O_SYNC since
++ this is a superset. */
++#if defined __USE_POSIX199309 || defined __USE_UNIX98
++# define O_DSYNC O_SYNC /* Synchronize data. */
++# define O_RSYNC O_SYNC /* Synchronize read operations. */
++#endif
++
++#ifdef __USE_LARGEFILE64
++# define O_LARGEFILE 0400000
++#endif
++
++/* Values for the second argument to `fcntl'. */
++#define F_DUPFD 0 /* Duplicate file descriptor. */
++#define F_GETFD 1 /* Get file descriptor flags. */
++#define F_SETFD 2 /* Set file descriptor flags. */
++#define F_GETFL 3 /* Get file status flags. */
++#define F_SETFL 4 /* Set file status flags. */
++#ifndef __USE_FILE_OFFSET64
++# define F_GETLK 5 /* Get record locking info. */
++# define F_SETLK 6 /* Set record locking info (non-blocking). */
++# define F_SETLKW 7 /* Set record locking info (blocking). */
++#else
++# define F_GETLK F_GETLK64 /* Get record locking info. */
++# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
++# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
++#endif
++#define F_GETLK64 12 /* Get record locking info. */
++#define F_SETLK64 13 /* Set record locking info (non-blocking). */
++#define F_SETLKW64 14 /* Set record locking info (blocking). */
++
++#if defined __USE_BSD || defined __USE_UNIX98
++# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
++# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
++#endif
++
++#ifdef __USE_GNU
++# define F_SETSIG 10 /* Set number of signal to be sent. */
++# define F_GETSIG 11 /* Get number of signal to be sent. */
++#endif
++
++#ifdef __USE_GNU
++# define F_SETLEASE 1024 /* Set a lease. */
++# define F_GETLEASE 1025 /* Enquire what lease is active. */
++# define F_NOTIFY 1026 /* Request notfications on a directory. */
++#endif
++
++/* For F_[GET|SET]FL. */
++#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
++
++/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
++#define F_RDLCK 0 /* Read lock. */
++#define F_WRLCK 1 /* Write lock. */
++#define F_UNLCK 2 /* Remove lock. */
++
++/* For old implementation of bsd flock(). */
++#define F_EXLCK 4 /* or 3 */
++#define F_SHLCK 8 /* or 4 */
++
++#ifdef __USE_BSD
++/* Operations for bsd flock(), also used by the kernel implementation. */
++# define LOCK_SH 1 /* shared lock */
++# define LOCK_EX 2 /* exclusive lock */
++# define LOCK_NB 4 /* or'd with one of the above to prevent
++ blocking */
++# define LOCK_UN 8 /* remove lock */
++#endif
++
++#ifdef __USE_GNU
++# define LOCK_MAND 32 /* This is a mandatory flock: */
++# define LOCK_READ 64 /* ... which allows concurrent read operations. */
++# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
++# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
++#endif
++
++#ifdef __USE_GNU
++/* Types of directory notifications that may be requested with F_NOTIFY. */
++# define DN_ACCESS 0x00000001 /* File accessed. */
++# define DN_MODIFY 0x00000002 /* File modified. */
++# define DN_CREATE 0x00000004 /* File created. */
++# define DN_DELETE 0x00000008 /* File removed. */
++# define DN_RENAME 0x00000010 /* File renamed. */
++# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
++# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
++#endif
++
++struct flock
++ {
++ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
++ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
++#ifndef __USE_FILE_OFFSET64
++ __off_t l_start; /* Offset where the lock begins. */
++ __off_t l_len; /* Size of the locked area; zero means until EOF. */
++#else
++ __off64_t l_start; /* Offset where the lock begins. */
++ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
++#endif
++ __pid_t l_pid; /* Process holding the lock. */
++ };
++
++#ifdef __USE_LARGEFILE64
++struct flock64
++ {
++ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
++ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
++ __off64_t l_start; /* Offset where the lock begins. */
++ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
++ __pid_t l_pid; /* Process holding the lock. */
++ };
++#endif
++
++/* Define some more compatibility macros to be backward compatible with
++ BSD systems which did not managed to hide these kernel macros. */
++#ifdef __USE_BSD
++# define FAPPEND O_APPEND
++# define FFSYNC O_FSYNC
++# define FASYNC O_ASYNC
++# define FNONBLOCK O_NONBLOCK
++# define FNDELAY O_NDELAY
++#endif /* Use BSD. */
++
++/* Advise to `posix_fadvise'. */
++#ifdef __USE_XOPEN2K
++# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
++# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
++# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
++# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
++# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
++# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
++#endif
++
++
++#ifdef __USE_GNU
++/* Flags for SYNC_FILE_RANGE. */
++# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
++ in the range before performing the
++ write. */
++# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
++ dirty pages in the range which are
++ not presently under writeback. */
++# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
++ the range after performing the
++ write. */
++
++/* Flags for SPLICE and VMSPLICE. */
++# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
++# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
++ (but we may still block on the fd
++ we splice from/to). */
++# define SPLICE_F_MORE 4 /* Expect more data. */
++# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
++#endif
++
++__BEGIN_DECLS
++
++#ifdef __USE_GNU
++
++/* Provide kernel hint to read ahead. */
++extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
++ __THROW;
++
++
++/* Selective file content synch'ing. */
++extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
++ unsigned int __flags);
++
++
++/* Splice address range into a pipe. */
++extern int vmsplice (int __fdout, const struct iovec *__iov, size_t __count,
++ unsigned int __flags);
++
++/* Splice two files together. */
++extern int splice (int __fdin, __off64_t *__offin, int __fdout,
++ __off64_t *__offout, size_t __len, unsigned int __flags)
++ __THROW;
++
++/* In-kernel implementation of tee for pipe buffers. */
++extern int tee (int __fdin, int __fdout, size_t __len, unsigned int __flags)
++ __THROW;
++
++#endif
++
++__END_DECLS
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/mman.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/mman.h
+@@ -0,0 +1,106 @@
++/* Definitions for POSIX memory map interface. Linux/Nios II version.
++ Copyright (C) 1997, 2000, 2003, 2004, 2005, 2006, 2008
++ Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _SYS_MMAN_H
++# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
++#endif
++
++/* The following definitions basically come from the kernel headers.
++ But the kernel header is not namespace clean. */
++
++
++/* Protections are chosen from these bits, OR'd together. The
++ implementation does not necessarily support PROT_EXEC or PROT_WRITE
++ without PROT_READ. The only guarantees are that no writing will be
++ allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
++
++#define PROT_READ 0x1 /* Page can be read. */
++#define PROT_WRITE 0x2 /* Page can be written. */
++#define PROT_EXEC 0x4 /* Page can be executed. */
++#define PROT_NONE 0x0 /* Page can not be accessed. */
++#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
++ growsdown vma (mprotect only). */
++#define PROT_GROWSUP 0x02000000 /* Extend change to start of
++ growsup vma (mprotect only). */
++
++/* Sharing types (must choose one and only one of these). */
++#define MAP_SHARED 0x01 /* Share changes. */
++#define MAP_PRIVATE 0x02 /* Changes are private. */
++#ifdef __USE_MISC
++# define MAP_TYPE 0x0f /* Mask for type of mapping. */
++#endif
++
++/* Other flags. */
++#define MAP_FIXED 0x10 /* Interpret addr exactly. */
++#ifdef __USE_MISC
++# define MAP_FILE 0
++# define MAP_ANONYMOUS 0x0020 /* Don't use a file. */
++# define MAP_ANON MAP_ANONYMOUS
++# define MAP_RENAME MAP_ANONYMOUS
++#endif
++
++/* These are Linux-specific. */
++#ifdef __USE_MISC
++# define MAP_NORESERVE 0x4000 /* don't check for reservations */
++# define MAP_ANONYMOUS 0x0020 /* don't use a file */
++# define MAP_GROWSDOWN 0x0100 /* stack-like segment */
++# define MAP_DENYWRITE 0x0800 /* ETXTBSY */
++# define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
++# define MAP_LOCKED 0x2000 /* pages are locked */
++# define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
++# define MAP_NONBLOCK 0x10000 /* do not block on IO */
++#endif
++
++/* Flags to `msync'. */
++#define MS_ASYNC 1 /* Sync memory asynchronously. */
++#define MS_SYNC 4 /* Synchronous memory sync. */
++#define MS_INVALIDATE 2 /* Invalidate the caches. */
++
++/* Flags for `mlockall'. */
++#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
++#define MCL_FUTURE 2 /* Lock all additions to address
++ space. */
++
++/* Flags for `mremap'. */
++#ifdef __USE_GNU
++# define MREMAP_MAYMOVE 1
++# define MREMAP_FIXED 2
++#endif
++
++/* Advice to `madvise'. */
++#ifdef __USE_BSD
++# define MADV_NORMAL 0 /* No further special treatment. */
++# define MADV_RANDOM 1 /* Expect random page references. */
++# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
++# define MADV_WILLNEED 3 /* Will need these pages. */
++# define MADV_DONTNEED 4 /* Don't need these pages. */
++# define MADV_REMOVE 9 /* Remove these pages and resources. */
++# define MADV_DONTFORK 10 /* Do not inherit across fork. */
++# define MADV_DOFORK 11 /* Do inherit across fork. */
++#endif
++
++/* The POSIX people had to invent similar names for the same things. */
++#ifdef __USE_XOPEN2K
++# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
++# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
++# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
++# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
++# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
++#endif
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/poll.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/bits/poll.h
+@@ -0,0 +1,50 @@
++/* Copyright (C) 1997, 2001, 2006 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _SYS_POLL_H
++# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
++#endif
++
++/* Event types that can be polled for. These bits may be set in `events'
++ to indicate the interesting event types; they will appear in `revents'
++ to indicate the status of the file descriptor. */
++#define POLLIN 0x001 /* There is data to read. */
++#define POLLPRI 0x002 /* There is urgent data to read. */
++#define POLLOUT 0x004 /* Writing now will not block. */
++
++#ifdef __USE_XOPEN
++/* These values are defined in XPG4.2. */
++# define POLLRDNORM 0x040 /* Normal data may be read. */
++# define POLLRDBAND 0x080 /* Priority data may be read. */
++# define POLLWRNORM POLLOUT /* Writing now will not block. */
++# define POLLWRBAND 0x100 /* Priority data may be written. */
++#endif
++
++#ifdef __USE_GNU
++/* These are extensions for Linux. */
++# define POLLMSG 0x400
++# define POLLREMOVE 0x1000
++# define POLLRDHUP 0x2000
++#endif
++
++/* Event types always implicitly polled for. These bits need not be set in
++ `events', but they will appear in `revents' to indicate the status of
++ the file descriptor. */
++#define POLLERR 0x008 /* Error condition. */
++#define POLLHUP 0x010 /* Hung up. */
++#define POLLNVAL 0x020 /* Invalid polling request. */
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/brk.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/brk.c
+@@ -0,0 +1,58 @@
++/* brk system call for Linux/Nios II.
++ Copyright (C) 1995, 1996, 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <errno.h>
++#include <unistd.h>
++#include <sysdep.h>
++
++/* This must be initialized data because commons can't have aliases. */
++void *__curbrk = 0;
++
++int
++__brk (void *addr)
++{
++ void *newbrk;
++
++ /* We can't use the INLINE_SYSCALL macro here because on non-optimized
++ builds it loads the address of errno even if no error occurred. __brk
++ is called during process initialization, before errno is set up. */
++ {
++ register int _r2 asm ("r2") = (int)(SYS_ify (brk));
++ register int _err asm ("r7");
++ register int _r4 asm ("r4") = (int)(addr);
++ asm volatile ("trap"
++ : "=r" (_r2), "=r" (_err)
++ : "r" (_r2), "r" (_r4)
++ : __SYSCALL_CLOBBERS);
++ newbrk = (void *) _r2;
++ if (_err)
++ newbrk = 0;
++ }
++
++ __curbrk = newbrk;
++
++ if (newbrk < addr)
++ {
++ __set_errno (ENOMEM);
++ return -1;
++ }
++
++ return 0;
++}
++weak_alias (__brk, brk)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/clone.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/clone.S
+@@ -0,0 +1,102 @@
++/* Copyright (C) 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++ Contributed by Andrew Jenner <andrew@codesourcery.com>, 2008.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* clone() is even more special than fork() as it mucks with stacks
++ and invokes a function in the right context after its all over. */
++
++#include <sysdep.h>
++#define _ERRNO_H 1
++#include <bits/errno.h>
++#include <tcb-offsets.h>
++
++#define CLONE_VM 0x00000100
++#define CLONE_THREAD 0x00010000
++
++/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
++ void *parent_tidptr, void *tls, void *child_tidptr) */
++
++ .text
++ENTRY(__clone)
++ /* Sanity check arguments. */
++ movi r2,EINVAL
++ /* No NULL function pointers. */
++ beq r4,zero,SYSCALL_ERROR_LABEL
++ /* No NULL stack pointers. */
++ beq r5,zero,SYSCALL_ERROR_LABEL
++
++ subi r5,r5,12 /* Reserve argument save space. */
++ stw r6,8(r5) /* Save flags. */
++ stw r4,4(r5) /* Save function pointer. */
++ stw r7,0(r5) /* Save argument pointer. */
++
++ /* Load arguments. */
++ mov r4,r6
++ ldw r6,0(sp)
++ ldw r7,4(sp)
++ ldw r8,8(sp)
++
++ /* Do the system call. */
++ movi r2,__NR_clone
++ trap
++
++ /* Check for errors. */
++ bne r7,zero,SYSCALL_ERROR_LABEL
++
++ /* See if we're on the newly created thread. */
++ beq r2,zero,thread_start
++
++ /* Successful return from the parent */
++ ret
++
++thread_start:
++ ldw r4,8(sp)
++
++ andi r2,r4,CLONE_THREAD
++ bne r2,zero,2f
++ andi r3,r4,CLONE_VM
++ movi r2,-1
++ bne r3,zero,3f
++ DO_CALL (getpid, 0)
++3:
++ stw r2,PID_OFFSET(r23)
++ stw r2,TID_OFFSET(r23)
++2:
++ ldw r5,4(sp) /* Function pointer. */
++ ldw r4,0(sp) /* Argument pointer. */
++ addi sp,sp,12
++
++ /* Call the user's function. */
++ callr r5
++
++ /* _exit with the result. */
++ mov r4,r2
++
++#ifdef PIC
++ nextpc r22
++1: movhi r8, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r8, r8, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r22, r22, r8
++ ldw r8, %call(_exit)(r22)
++ jmp r8
++#else
++ jmpi _exit
++#endif
++PSEUDO_END (__clone)
++
++weak_alias (__clone, clone)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/configure
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/configure
+@@ -0,0 +1,4 @@
++# This file is generated from configure.in by Autoconf. DO NOT EDIT!
++ # Local configure fragment for sysdeps/unix/sysv/linux/nios2.
++
++arch_minimum_kernel=2.6.21
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/configure.in
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/configure.in
+@@ -0,0 +1,4 @@
++GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
++# Local configure fragment for sysdeps/unix/sysv/linux/nios2.
++
++arch_minimum_kernel=2.6.21
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/fxstatat.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/fxstatat.c
+@@ -0,0 +1 @@
++#include <sysdeps/unix/sysv/linux/i386/fxstatat.c>
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/getrlimit.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/getrlimit.c
+@@ -0,0 +1 @@
++#include <sysdeps/unix/sysv/linux/i386/getrlimit.c>
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/kernel-features.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/kernel-features.h
+@@ -0,0 +1,26 @@
++/* Set flags signalling availability of kernel features based on given
++ kernel version number.
++ Copyright (C) 2006, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#define __ASSUME_NEW_GETRLIMIT_SYSCALL 1
++
++#include_next <kernel-features.h>
++
++#undef __ASSUME_PSELECT
++#undef __ASSUME_PPOLL
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/bits/pthreadtypes.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/bits/pthreadtypes.h
+@@ -0,0 +1,181 @@
++/* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _BITS_PTHREADTYPES_H
++#define _BITS_PTHREADTYPES_H 1
++
++#include <endian.h>
++
++#define __SIZEOF_PTHREAD_ATTR_T 36
++#define __SIZEOF_PTHREAD_MUTEX_T 24
++#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
++#define __SIZEOF_PTHREAD_COND_T 48
++#define __SIZEOF_PTHREAD_COND_COMPAT_T 12
++#define __SIZEOF_PTHREAD_CONDATTR_T 4
++#define __SIZEOF_PTHREAD_RWLOCK_T 32
++#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
++#define __SIZEOF_PTHREAD_BARRIER_T 20
++#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
++
++
++/* Thread identifiers. The structure of the attribute type is not
++ exposed on purpose. */
++typedef unsigned long int pthread_t;
++
++
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_ATTR_T];
++ long int __align;
++} pthread_attr_t;
++
++
++typedef struct __pthread_internal_slist
++{
++ struct __pthread_internal_slist *__next;
++} __pthread_slist_t;
++
++
++/* Data structures for mutex handling. The structure of the attribute
++ type is not exposed on purpose. */
++typedef union
++{
++ struct __pthread_mutex_s
++ {
++ int __lock;
++ unsigned int __count;
++ int __owner;
++ /* KIND must stay at this position in the structure to maintain
++ binary compatibility. */
++ int __kind;
++ unsigned int __nusers;
++ __extension__ union
++ {
++ int __spins;
++ __pthread_slist_t __list;
++ };
++ } __data;
++ char __size[__SIZEOF_PTHREAD_MUTEX_T];
++ long int __align;
++} pthread_mutex_t;
++
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
++ long int __align;
++} pthread_mutexattr_t;
++
++
++/* Data structure for conditional variable handling. The structure of
++ the attribute type is not exposed on purpose. */
++typedef union
++{
++ struct
++ {
++ int __lock;
++ unsigned int __futex;
++ __extension__ unsigned long long int __total_seq;
++ __extension__ unsigned long long int __wakeup_seq;
++ __extension__ unsigned long long int __woken_seq;
++ void *__mutex;
++ unsigned int __nwaiters;
++ unsigned int __broadcast_seq;
++ } __data;
++ char __size[__SIZEOF_PTHREAD_COND_T];
++ __extension__ long long int __align;
++} pthread_cond_t;
++
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_CONDATTR_T];
++ long int __align;
++} pthread_condattr_t;
++
++
++/* Keys for thread-specific data */
++typedef unsigned int pthread_key_t;
++
++
++/* Once-only execution */
++typedef int pthread_once_t;
++
++
++#if defined __USE_UNIX98 || defined __USE_XOPEN2K
++/* Data structure for read-write lock variable handling. The
++ structure of the attribute type is not exposed on purpose. */
++typedef union
++{
++ struct
++ {
++ int __lock;
++ unsigned int __nr_readers;
++ unsigned int __readers_wakeup;
++ unsigned int __writer_wakeup;
++ unsigned int __nr_readers_queued;
++ unsigned int __nr_writers_queued;
++#if __BYTE_ORDER == __BIG_ENDIAN
++ unsigned char __pad1;
++ unsigned char __pad2;
++ unsigned char __shared;
++ /* FLAGS must stay at this position in the structure to maintain
++ binary compatibility. */
++ unsigned char __flags;
++#else
++ /* FLAGS must stay at this position in the structure to maintain
++ binary compatibility. */
++ unsigned char __flags;
++ unsigned char __shared;
++ unsigned char __pad1;
++ unsigned char __pad2;
++#endif
++ int __writer;
++ } __data;
++ char __size[__SIZEOF_PTHREAD_RWLOCK_T];
++ long int __align;
++} pthread_rwlock_t;
++
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
++ long int __align;
++} pthread_rwlockattr_t;
++#endif
++
++
++#ifdef __USE_XOPEN2K
++/* POSIX spinlock data type. */
++typedef volatile int pthread_spinlock_t;
++
++
++/* POSIX barriers data type. The structure of the type is
++ deliberately not exposed. */
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_BARRIER_T];
++ long int __align;
++} pthread_barrier_t;
++
++typedef union
++{
++ char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
++ int __align;
++} pthread_barrierattr_t;
++#endif
++
++
++#endif /* bits/pthreadtypes.h */
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/bits/semaphore.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/bits/semaphore.h
+@@ -0,0 +1,38 @@
++/* Copyright (C) 2002, 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _SEMAPHORE_H
++# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
++#endif
++
++
++#define __SIZEOF_SEM_T 16
++
++
++/* Value returned if `sem_open' failed. */
++#define SEM_FAILED ((sem_t *) 0)
++
++/* Maximum value the semaphore can have. */
++#define SEM_VALUE_MAX ((int) ((~0u) >> 1))
++
++
++typedef union
++{
++ char __size[__SIZEOF_SEM_T];
++ long int __align;
++} sem_t;
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/createthread.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/createthread.c
+@@ -0,0 +1,24 @@
++/* Copyright (C) 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++/* Value passed to 'clone' for initialization of the thread register. */
++#define TLS_VALUE ((void *) (pd) \
++ + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)
++
++/* Get the real implementation. */
++#include <nptl/sysdeps/pthread/createthread.c>
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/fork.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/fork.c
+@@ -0,0 +1,34 @@
++/* Copyright (C) 2005 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sched.h>
++#include <signal.h>
++#include <sysdep.h>
++#include <tls.h>
++
++/* Argument 1 - Clone flags.
++ 2 - Child stack pointer.
++ 3 - Parent tid pointer.
++ 4 - New TLS area pointer.
++ 5 - Child tid pointer. */
++#define ARCH_FORK() \
++ INLINE_SYSCALL (clone, 5, \
++ CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
++ NULL, NULL, NULL, &THREAD_SELF->tid)
++
++#include <nptl/sysdeps/unix/sysv/linux/fork.c>
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/lowlevellock.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/lowlevellock.h
+@@ -0,0 +1,283 @@
++/* Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _LOWLEVELLOCK_H
++#define _LOWLEVELLOCK_H 1
++
++#include <time.h>
++#include <sys/param.h>
++#include <bits/pthreadtypes.h>
++#include <atomic.h>
++#include <sysdep.h>
++#include <kernel-features.h>
++#include <tls.h>
++
++#define FUTEX_WAIT 0
++#define FUTEX_WAKE 1
++#define FUTEX_REQUEUE 3
++#define FUTEX_CMP_REQUEUE 4
++#define FUTEX_WAKE_OP 5
++#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1)
++#define FUTEX_LOCK_PI 6
++#define FUTEX_UNLOCK_PI 7
++#define FUTEX_TRYLOCK_PI 8
++#define FUTEX_WAIT_BITSET 9
++#define FUTEX_WAKE_BITSET 10
++#define FUTEX_PRIVATE_FLAG 128
++#define FUTEX_CLOCK_REALTIME 256
++
++#define FUTEX_BITSET_MATCH_ANY 0xffffffff
++
++/* Values for 'private' parameter of locking macros. Yes, the
++ definition seems to be backwards. But it is not. The bit will be
++ reversed before passing to the system call. */
++#define LLL_PRIVATE 0
++#define LLL_SHARED FUTEX_PRIVATE_FLAG
++
++
++#if !defined NOT_IN_libc || defined IS_IN_rtld
++/* In libc.so or ld.so all futexes are private. */
++# ifdef __ASSUME_PRIVATE_FUTEX
++# define __lll_private_flag(fl, private) \
++ ((fl) | FUTEX_PRIVATE_FLAG)
++# else
++# define __lll_private_flag(fl, private) \
++ ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
++# endif
++#else
++# ifdef __ASSUME_PRIVATE_FUTEX
++# define __lll_private_flag(fl, private) \
++ (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
++# else
++# define __lll_private_flag(fl, private) \
++ (__builtin_constant_p (private) \
++ ? ((private) == 0 \
++ ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \
++ : (fl)) \
++ : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \
++ & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
++# endif
++#endif
++
++
++#define lll_futex_wait(futexp, val, private) \
++ lll_futex_timed_wait(futexp, val, NULL, private)
++
++#define lll_futex_timed_wait(futexp, val, timespec, private) \
++ ({ \
++ INTERNAL_SYSCALL_DECL (__err); \
++ long int __ret; \
++ __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
++ __lll_private_flag (FUTEX_WAIT, private), \
++ (val), (timespec)); \
++ __ret; \
++ })
++
++#define lll_futex_wake(futexp, nr, private) \
++ ({ \
++ INTERNAL_SYSCALL_DECL (__err); \
++ long int __ret; \
++ __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
++ __lll_private_flag (FUTEX_WAKE, private), \
++ (nr), 0); \
++ __ret; \
++ })
++
++#define lll_robust_dead(futexv, private) \
++ do \
++ { \
++ int *__futexp = &(futexv); \
++ atomic_or (__futexp, FUTEX_OWNER_DIED); \
++ lll_futex_wake (__futexp, 1, private); \
++ } \
++ while (0)
++
++/* Returns non-zero if error happened, zero if success. */
++#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \
++ ({ \
++ INTERNAL_SYSCALL_DECL (__err); \
++ long int __ret; \
++ __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
++ __lll_private_flag (FUTEX_CMP_REQUEUE, private),\
++ (nr_wake), (nr_move), (mutex), (val)); \
++ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
++ })
++
++
++/* Returns non-zero if error happened, zero if success. */
++#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
++ ({ \
++ INTERNAL_SYSCALL_DECL (__err); \
++ long int __ret; \
++ __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
++ __lll_private_flag (FUTEX_WAKE_OP, private), \
++ (nr_wake), (nr_wake2), (futexp2), \
++ FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \
++ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
++ })
++
++
++#define lll_trylock(lock) \
++ atomic_compare_and_exchange_val_acq(&(lock), 1, 0)
++
++#define lll_cond_trylock(lock) \
++ atomic_compare_and_exchange_val_acq(&(lock), 2, 0)
++
++#define __lll_robust_trylock(futex, id) \
++ (atomic_compare_and_exchange_val_acq (futex, id, 0) != 0)
++#define lll_robust_trylock(lock, id) \
++ __lll_robust_trylock (&(lock), id)
++
++extern void __lll_lock_wait_private (int *futex) attribute_hidden;
++extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
++extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden;
++
++#define __lll_lock(futex, private) \
++ ((void) ({ \
++ int *__futex = (futex); \
++ if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, \
++ 1, 0), 0)) \
++ { \
++ if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \
++ __lll_lock_wait_private (__futex); \
++ else \
++ __lll_lock_wait (__futex, private); \
++ } \
++ }))
++#define lll_lock(futex, private) __lll_lock (&(futex), private)
++
++
++#define __lll_robust_lock(futex, id, private) \
++ ({ \
++ int *__futex = (futex); \
++ int __val = 0; \
++ \
++ if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \
++ 0), 0)) \
++ __val = __lll_robust_lock_wait (__futex, private); \
++ __val; \
++ })
++#define lll_robust_lock(futex, id, private) \
++ __lll_robust_lock (&(futex), id, private)
++
++
++#define __lll_cond_lock(futex, private) \
++ ((void) ({ \
++ int *__futex = (futex); \
++ if (__builtin_expect (atomic_exchange_acq (__futex, 2), 0)) \
++ __lll_lock_wait (__futex, private); \
++ }))
++#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
++
++
++#define lll_robust_cond_lock(futex, id, private) \
++ __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private)
++
++
++extern int __lll_timedlock_wait (int *futex, const struct timespec *,
++ int private) attribute_hidden;
++extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *,
++ int private) attribute_hidden;
++
++#define __lll_timedlock(futex, abstime, private) \
++ ({ \
++ int *__futex = (futex); \
++ int __val = 0; \
++ \
++ if (__builtin_expect (atomic_exchange_acq (__futex, 1), 0)) \
++ __val = __lll_timedlock_wait (__futex, abstime, private); \
++ __val; \
++ })
++#define lll_timedlock(futex, abstime, private) \
++ __lll_timedlock (&(futex), abstime, private)
++
++
++#define __lll_robust_timedlock(futex, abstime, id, private) \
++ ({ \
++ int *__futex = (futex); \
++ int __val = 0; \
++ \
++ if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \
++ 0), 0)) \
++ __val = __lll_robust_timedlock_wait (__futex, abstime, private); \
++ __val; \
++ })
++#define lll_robust_timedlock(futex, abstime, id, private) \
++ __lll_robust_timedlock (&(futex), abstime, id, private)
++
++
++#define __lll_unlock(futex, private) \
++ (void) \
++ ({ int *__futex = (futex); \
++ int __oldval = atomic_exchange_rel (__futex, 0); \
++ if (__builtin_expect (__oldval > 1, 0)) \
++ lll_futex_wake (__futex, 1, private); \
++ })
++#define lll_unlock(futex, private) __lll_unlock(&(futex), private)
++
++
++#define __lll_robust_unlock(futex, private) \
++ (void) \
++ ({ int *__futex = (futex); \
++ int __oldval = atomic_exchange_rel (__futex, 0); \
++ if (__builtin_expect (__oldval & FUTEX_WAITERS, 0)) \
++ lll_futex_wake (__futex, 1, private); \
++ })
++#define lll_robust_unlock(futex, private) \
++ __lll_robust_unlock(&(futex), private)
++
++
++#define lll_islocked(futex) \
++ (futex != 0)
++
++
++/* Our internal lock implementation is identical to the binary-compatible
++ mutex implementation. */
++
++/* Initializers for lock. */
++#define LLL_LOCK_INITIALIZER (0)
++#define LLL_LOCK_INITIALIZER_LOCKED (1)
++
++/* The states of a lock are:
++ 0 - untaken
++ 1 - taken by one user
++ >1 - taken by more users */
++
++/* The kernel notifies a process which uses CLONE_CLEARTID via futex
++ wakeup when the clone terminates. The memory location contains the
++ thread ID while the clone is running and is reset to zero
++ afterwards. */
++#define lll_wait_tid(tid) \
++ do { \
++ __typeof (tid) __tid; \
++ while ((__tid = (tid)) != 0) \
++ lll_futex_wait (&(tid), __tid, LLL_SHARED);\
++ } while (0)
++
++extern int __lll_timedwait_tid (int *, const struct timespec *)
++ attribute_hidden;
++
++#define lll_timedwait_tid(tid, abstime) \
++ ({ \
++ int __res = 0; \
++ if ((tid) != 0) \
++ __res = __lll_timedwait_tid (&(tid), (abstime)); \
++ __res; \
++ })
++
++#endif /* lowlevellock.h */
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/pt-vfork.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/pt-vfork.S
+@@ -0,0 +1,42 @@
++/* Copyright (C) 2005, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++#include <tcb-offsets.h>
++
++ENTRY (__vfork)
++
++ ldw r4, PID_OFFSET(r23)
++ sub r4, zero, r4
++ stw r4, PID_OFFSET(r23)
++
++ DO_CALL (vfork, 0)
++
++ beq r2, zero, 1f
++ ldw r4, PID_OFFSET(r23)
++ sub r4, zero, r4
++ stw r4, PID_OFFSET(r23)
++1:
++
++ bne r7, zero, SYSCALL_ERROR_LABEL
++ ret
++
++PSEUDO_END (__vfork)
++libc_hidden_def (__vfork)
++
++weak_alias (__vfork, vfork)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/pthread_once.c
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/pthread_once.c
+@@ -0,0 +1,94 @@
++/* Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include "pthreadP.h"
++#include <lowlevellock.h>
++
++
++unsigned long int __fork_generation attribute_hidden;
++
++
++static void
++clear_once_control (void *arg)
++{
++ pthread_once_t *once_control = (pthread_once_t *) arg;
++
++ *once_control = 0;
++ lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
++}
++
++
++int
++__pthread_once (once_control, init_routine)
++ pthread_once_t *once_control;
++ void (*init_routine) (void);
++{
++ while (1)
++ {
++ int oldval, val, newval;
++
++ val = *once_control;
++ do
++ {
++ /* Check if the initialized has already been done. */
++ if ((val & 2) != 0)
++ return 0;
++
++ oldval = val;
++ newval = (oldval & 3) | __fork_generation | 1;
++ val = atomic_compare_and_exchange_val_acq (once_control, newval,
++ oldval);
++ }
++ while (__builtin_expect (val != oldval, 0));
++
++ /* Check if another thread already runs the initializer. */
++ if ((oldval & 1) != 0)
++ {
++ /* Check whether the initializer execution was interrupted
++ by a fork. */
++ if (((oldval ^ newval) & -4) == 0)
++ {
++ /* Same generation, some other thread was faster. Wait. */
++ lll_futex_wait (once_control, newval, LLL_PRIVATE);
++ continue;
++ }
++ }
++
++ /* This thread is the first here. Do the initialization.
++ Register a cleanup handler so that in case the thread gets
++ interrupted the initialization can be restarted. */
++ pthread_cleanup_push (clear_once_control, once_control);
++
++ init_routine ();
++
++ pthread_cleanup_pop (0);
++
++
++ /* Add one to *once_control. */
++ atomic_increment (once_control);
++
++ /* Wake up all other threads. */
++ lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
++ break;
++ }
++
++ return 0;
++}
++weak_alias (__pthread_once, pthread_once)
++strong_alias (__pthread_once, __pthread_once_internal)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/sysdep-cancel.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/sysdep-cancel.h
+@@ -0,0 +1,140 @@
++/* Copyright (C) 2003, 2004, 2005, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++#include <sysdeps/generic/sysdep.h>
++#include <tls.h>
++#ifndef __ASSEMBLER__
++# include <nptl/pthreadP.h>
++#endif
++
++#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
++
++# undef PSEUDO
++# define PSEUDO(name, syscall_name, args) \
++ .type __##syscall_name##_nocancel, @function; \
++ .globl __##syscall_name##_nocancel; \
++ __##syscall_name##_nocancel: \
++ DO_CALL (syscall_name, args); \
++ bne r7, zero, SYSCALL_ERROR_LABEL; \
++ ret; \
++ .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
++ ENTRY (name) \
++ cfi_startproc; \
++ SINGLE_THREAD_P(r2); \
++ bne r2, zero, pseudo_cancel; \
++ DO_CALL (syscall_name, args); \
++ bne r7, zero, SYSCALL_ERROR_LABEL; \
++ ret; \
++ pseudo_cancel: \
++ SAVESTK_##args; /* save syscall args and adjust stack */ \
++ SAVEREG(ra, 0); /* save return address */ \
++ SAVEREG(r22, 4); /* save GOT pointer */ \
++ nextpc r22; \
++1: movhi r2, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b); \
++ addi r2, r2, %lo(_GLOBAL_OFFSET_TABLE_ - 1b); \
++ add r22, r22, r2; \
++ CENABLE; \
++ callr r3; \
++ stw r2, 8(sp); /* save mask */ \
++ LOADARGS_##args; \
++ movi r2, SYS_ify(syscall_name); \
++ trap; \
++ stw r2, 12(sp); /* save syscall result */ \
++ stw r7, 16(sp); /* save syscall error flag */ \
++ ldw r4, 8(sp); /* pass mask as argument 1 */ \
++ CDISABLE; \
++ callr r3; \
++ ldw r7, 16(sp); /* restore syscall error flag */ \
++ ldw r2, 12(sp); /* restore syscall result */ \
++ ldw ra, 0(sp); /* restore return address */ \
++ ldw r22, 4(sp); /* restore GOT pointer */ \
++ RESTORESTK_##args; \
++ bne r7, zero, SYSCALL_ERROR_LABEL; \
++ cfi_endproc;
++
++# undef PSEUDO_END
++# define PSEUDO_END(sym) \
++ SYSCALL_ERROR_HANDLER \
++ END (sym)
++
++#define SAVEREG(REG, LOC) stw REG, LOC(sp); cfi_rel_offset (REG, LOC)
++#define SAVESTK(X) subi sp, sp, X; cfi_adjust_cfa_offset(X)
++#define SAVESTK_0 SAVESTK(20)
++#define SAVEARG_1 SAVEREG(r4, 20)
++#define SAVESTK_1 SAVESTK(24); SAVEARG_1
++#define SAVEARG_2 SAVEREG(r5, 24); SAVEARG_1
++#define SAVESTK_2 SAVESTK(28); SAVEARG_2
++#define SAVEARG_3 SAVEREG(r6, 28); SAVEARG_2
++#define SAVESTK_3 SAVESTK(32); SAVEARG_3
++#define SAVEARG_4 SAVEREG(r7, 32); SAVEARG_3
++#define SAVESTK_4 SAVESTK(36); SAVEARG_4
++#define SAVESTK_5 SAVESTK_4
++#define SAVESTK_6 SAVESTK_5
++
++#define LOADARGS_0
++#define LOADARGS_1 ldw r4, 20(sp)
++#define LOADARGS_2 LOADARGS_1; ldw r5, 24(sp)
++#define LOADARGS_3 LOADARGS_2; ldw r6, 28(sp)
++#define LOADARGS_4 LOADARGS_3; ldw r7, 32(sp)
++#define LOADARGS_5 LOADARGS_4; ldw r8, 36(sp)
++#define LOADARGS_6 LOADARGS_5; ldw r9, 40(sp)
++
++#define RESTORESTK(X) addi sp, sp, X; cfi_adjust_cfa_offset(-X)
++#define RESTORESTK_0 RESTORESTK(20)
++#define RESTORESTK_1 RESTORESTK(24)
++#define RESTORESTK_2 RESTORESTK(28)
++#define RESTORESTK_3 RESTORESTK(32)
++#define RESTORESTK_4 RESTORESTK(36)
++#define RESTORESTK_5 RESTORESTK(36)
++#define RESTORESTK_6 RESTORESTK(36)
++
++# ifdef IS_IN_libpthread
++# define CENABLE ldw r3, %call(__pthread_enable_asynccancel)(r22)
++# define CDISABLE ldw r3, %call(__pthread_disable_asynccancel)(r22)
++# elif defined IS_IN_librt
++# define CENABLE ldw r3, %call(__librt_enable_asynccancel)(r22)
++# define CDISABLE ldw r3, %call(__librt_disable_asynccancel)(r22)
++# else
++# define CENABLE ldw r3, %call(__libc_enable_asynccancel)(r22)
++# define CDISABLE ldw r3, %call(__libc_disable_asynccancel)(r22)
++# endif
++
++# ifndef __ASSEMBLER__
++# define SINGLE_THREAD_P \
++ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
++ header.multiple_threads) \
++ == 0, 1)
++# else
++# define SINGLE_THREAD_P(reg) \
++ ldw reg, MULTIPLE_THREADS_OFFSET(r23)
++#endif
++
++#elif !defined __ASSEMBLER__
++
++/* For rtld, et cetera. */
++# define SINGLE_THREAD_P 1
++# define NO_CANCELLATION 1
++
++#endif
++
++#ifndef __ASSEMBLER__
++# define RTLD_SINGLE_THREAD_P \
++ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
++ header.multiple_threads) == 0, 1)
++#endif
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/vfork.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/nptl/vfork.S
+@@ -0,0 +1,42 @@
++/* Copyright (C) 2005, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++#include <tcb-offsets.h>
++
++ENTRY (__vfork)
++
++ ldw r4, PID_OFFSET(r23)
++ sub r4, zero, r4
++ stw r4, PID_OFFSET(r23)
++
++ DO_CALL (vfork, 0)
++
++ beq r2, zero, 1f
++ ldw r4, PID_OFFSET(r23)
++ sub r4, zero, r4
++ stw r4, PID_OFFSET(r23)
++1:
++
++ bne r7, zero, SYSCALL_ERROR_LABEL
++ ret
++
++PSEUDO_END (__vfork)
++libc_hidden_def (__vfork)
++
++weak_alias (__vfork, vfork)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/profil-counter.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/profil-counter.h
+@@ -0,0 +1,2 @@
++/* We can use the ix86 version. */
++#include <sysdeps/unix/sysv/linux/i386/profil-counter.h>
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/socket.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/socket.S
+@@ -0,0 +1,136 @@
++/* Copyright (C) 1995, 1996, 1997, 1998, 2003, 2004, 2005
++ Free Software Foundation, Inc.
++
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep-cancel.h>
++#include <socketcall.h>
++
++#define P(a, b) P2(a, b)
++#define P2(a, b) a##b
++
++ .text
++/* The socket-oriented system calls are handled unusally in Linux.
++ They are all gated through the single `socketcall' system call number.
++ `socketcall' takes two arguments: the first is the subcode, specifying
++ which socket function is being called; and the second is a pointer to
++ the arguments to the specific function.
++
++ The .S files for the other calls just #define socket and #include this. */
++
++#ifndef __socket
++# ifndef NO_WEAK_ALIAS
++# define __socket P(__,socket)
++# else
++# define __socket socket
++# endif
++#endif
++
++#define PUSHARGS_1 subi sp, sp, 4 ; \
++ stw r4, 0(sp)
++#define PUSHARGS_2 subi sp, sp, 8 ; \
++ stw r5, 4(sp) ; \
++ stw r4, 0(sp)
++#define PUSHARGS_3 subi sp, sp, 12 ; \
++ stw r6, 8(sp) ; \
++ stw r5, 4(sp) ; \
++ stw r4, 0(sp)
++#define PUSHARGS_4 subi sp, sp, 16 ; \
++ stw r7, 12(sp) ; \
++ stw r6, 8(sp) ; \
++ stw r5, 4(sp) ; \
++ stw r4, 0(sp)
++#define PUSHARGS_5 PUSHARGS_4 /* Caller has already pushed arg 5 */
++#define PUSHARGS_6 PUSHARGS_4
++
++#define POPARGS_1 addi sp, sp, 4
++#define POPARGS_2 addi sp, sp, 8
++#define POPARGS_3 addi sp, sp, 12
++#define POPARGS_4 addi sp, sp, 16
++#define POPARGS_5 addi sp, sp, 16
++#define POPARGS_6 addi sp, sp, 16
++
++#ifndef NARGS
++#define NARGS 3 /* If we were called with no wrapper, this is really socket() */
++#endif
++
++.globl __socket
++ENTRY (__socket)
++ /* Push args onto the stack. */
++ P(PUSHARGS_,NARGS)
++
++#if defined NEED_CANCELLATION && defined CENABLE
++ SINGLE_THREAD_P(r2)
++ bne r2,zero,2f
++#endif
++
++ /* Do the system call trap. */
++ movi r4, P(SOCKOP_,socket)
++ mov r5, sp
++ movi r2, SYS_ify(socketcall)
++ trap
++
++ /* Pop args off the stack. */
++ P(POPARGS_,NARGS)
++
++ /* Check for errors. */
++ bne r7,zero,SYSCALL_ERROR_LABEL
++
++ ret
++#if defined NEED_CANCELLATION && defined CENABLE
++
++2: subi sp, sp, 20
++ stw ra, 0(sp)
++ stw r22, 4(sp)
++
++ nextpc r22
++1: movhi r2, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)
++ addi r2, r2, %lo(_GLOBAL_OFFSET_TABLE_ - 1b)
++ add r22, r22, r2
++
++ CENABLE
++ callr r3
++ stw r16, 8(sp)
++
++ movi r4, P(SOCKOP_,socket)
++ addi r5, sp, 20
++ movi r2, SYS_ify(socketcall)
++ trap
++
++ stw r2, 12(sp)
++ stw r7, 16(sp)
++ ldw r4, 8(sp)
++ CDISABLE
++ callr r3
++ ldw r7, 16(sp)
++ ldw r2, 12(sp)
++ ldw r22, 4(sp)
++ ldw ra, 0(sp)
++ addi sp, sp, 20
++
++ P(POPARGS_,NARGS)
++
++ bne r7, zero, SYSCALL_ERROR_LABEL
++ ret
++#endif
++
++PSEUDO_END (__socket)
++
++#ifndef NO_WEAK_ALIAS
++weak_alias (__socket, socket)
++#endif
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sys/procfs.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sys/procfs.h
+@@ -0,0 +1,123 @@
++/* Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _SYS_PROCFS_H
++#define _SYS_PROCFS_H 1
++
++/* This is somewhat modelled after the file of the same name on SVR4
++ systems. It provides a definition of the core file format for ELF
++ used on Linux. It doesn't have anything to do with the /proc file
++ system, even though Linux has one.
++
++ Anyway, the whole purpose of this file is for GDB and GDB only.
++ Don't read too much into it. Don't use it for anything other than
++ GDB unless you know what you are doing. */
++
++#include <features.h>
++#include <sys/time.h>
++#include <sys/types.h>
++#include <sys/user.h>
++
++__BEGIN_DECLS
++
++/* Type for a general-purpose register. */
++typedef unsigned long elf_greg_t;
++
++/* And the whole bunch of them. We could have used `struct
++ user_regs' directly in the typedef, but tradition says that
++ the register set is an array, which does have some peculiar
++ semantics, so leave it that way. */
++#define ELF_NGREG (sizeof (struct user_regs) / sizeof(elf_greg_t))
++typedef elf_greg_t elf_gregset_t[ELF_NGREG];
++
++/* Register set for the floating-point registers. */
++typedef struct user_fpregs elf_fpregset_t;
++
++/* Signal info. */
++struct elf_siginfo
++ {
++ int si_signo; /* Signal number. */
++ int si_code; /* Extra code. */
++ int si_errno; /* Errno. */
++ };
++
++/* Definitions to generate Intel SVR4-like core files. These mostly
++ have the same names as the SVR4 types with "elf_" tacked on the
++ front to prevent clashes with Linux definitions, and the typedef
++ forms have been avoided. This is mostly like the SVR4 structure,
++ but more Linuxy, with things that Linux does not support and which
++ GDB doesn't really use excluded. */
++
++struct elf_prstatus
++ {
++ struct elf_siginfo pr_info; /* Info associated with signal. */
++ short int pr_cursig; /* Current signal. */
++ unsigned long int pr_sigpend; /* Set of pending signals. */
++ unsigned long int pr_sighold; /* Set of held signals. */
++ __pid_t pr_pid;
++ __pid_t pr_ppid;
++ __pid_t pr_pgrp;
++ __pid_t pr_sid;
++ struct timeval pr_utime; /* User time. */
++ struct timeval pr_stime; /* System time. */
++ struct timeval pr_cutime; /* Cumulative user time. */
++ struct timeval pr_cstime; /* Cumulative system time. */
++ elf_gregset_t pr_reg; /* GP registers. */
++ int pr_fpvalid; /* True if math copro being used. */
++ };
++
++
++#define ELF_PRARGSZ (80) /* Number of chars for args. */
++
++struct elf_prpsinfo
++ {
++ char pr_state; /* Numeric process state. */
++ char pr_sname; /* Char for pr_state. */
++ char pr_zomb; /* Zombie. */
++ char pr_nice; /* Nice val. */
++ unsigned long int pr_flag; /* Flags. */
++ unsigned short int pr_uid;
++ unsigned short int pr_gid;
++ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
++ /* Lots missing */
++ char pr_fname[16]; /* Filename of executable. */
++ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
++ };
++
++/* The rest of this file provides the types for emulation of the
++ Solaris <proc_service.h> interfaces that should be implemented by
++ users of libthread_db. */
++
++/* Addresses. */
++typedef void *psaddr_t;
++
++/* Register sets. Linux has different names. */
++typedef elf_gregset_t prgregset_t;
++typedef elf_fpregset_t prfpregset_t;
++
++/* We don't have any differences between processes and threads,
++ therefore have only one PID type. */
++typedef __pid_t lwpid_t;
++
++/* Process status and info. In the end we do provide typedefs for them. */
++typedef struct elf_prstatus prstatus_t;
++typedef struct elf_prpsinfo prpsinfo_t;
++
++__END_DECLS
++
++#endif /* sys/procfs.h */
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sys/user.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sys/user.h
+@@ -0,0 +1,58 @@
++/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _SYS_USER_H
++#define _SYS_USER_H 1
++
++/* The whole purpose of this file is for GDB and GDB only. Don't read
++ too much into it. Don't use it for anything other than GDB unless
++ you know what you are doing. */
++
++struct user_fpregs
++{
++};
++
++struct user_regs
++{
++ unsigned long int uregs[32];
++};
++
++struct user
++{
++ struct user_regs regs; /* General registers */
++ int u_fpvalid; /* True if math co-processor being used. */
++
++ unsigned long int u_tsize; /* Text segment size (pages). */
++ unsigned long int u_dsize; /* Data segment size (pages). */
++ unsigned long int u_ssize; /* Stack segment size (pages). */
++
++ unsigned long start_code; /* Starting virtual address of text. */
++ unsigned long start_stack; /* Starting virtual address of stack. */
++
++ long int signal; /* Signal that caused the core dump. */
++ int reserved; /* No longer used */
++ struct user_regs *u_ar0; /* help gdb to find the general registers. */
++
++ unsigned long magic; /* uniquely identify a core file */
++ char u_comm[32]; /* User command that was responsible */
++ int u_debugreg[8];
++ struct user_fpregs u_fp; /* Floating point registers */
++ struct user_fpregs *u_fp0; /* help gdb to find the FP registers. */
++};
++
++#endif /* sys/user.h */
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/syscall.S
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/syscall.S
+@@ -0,0 +1,36 @@
++/* Copyright (C) 2005, 2008 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sysdep.h>
++
++/* We don't need a special syscall to implement syscall(). It won't work
++ reliably with 64-bit arguments (but that is true on many modern platforms).
++*/
++
++ENTRY (syscall)
++ mov r2, r4
++ mov r4, r5
++ mov r5, r6
++ mov r6, r7
++ ldw r7, 0(sp)
++ ldw r8, 4(sp)
++ ldw r9, 8(sp)
++ trap
++ bne r7, zero, SYSCALL_ERROR_LABEL
++ ret
++PSEUDO_END (syscall)
+Index: glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sysdep.h
+===================================================================
+--- /dev/null
++++ glibc-2.10.1/sysdeps/unix/sysv/linux/nios2/sysdep.h
+@@ -0,0 +1,219 @@
++/* Copyright (C) 2000, 2002, 2003, 2004, 2005, 2008 Free Software Foundation,
++ Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#ifndef _LINUX_NIOS2_SYSDEP_H
++#define _LINUX_NIOS2_SYSDEP_H 1
++
++#include <sysdeps/unix/sysdep.h>
++
++/* For Linux we can use the system call table in the header file
++ /usr/include/asm/unistd.h
++ of the kernel. But these symbols do not follow the SYS_* syntax
++ so we have to redefine the `SYS_ify' macro here. */
++#undef SYS_ify
++#define SYS_ify(syscall_name) __NR_##syscall_name
++
++#ifdef __ASSEMBLER__
++
++#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,%##typearg;
++#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
++
++#define ENTRY(name) \
++ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
++ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),function) \
++ C_LABEL(name)
++
++#undef END
++#define END(name) \
++ ASM_SIZE_DIRECTIVE(name)
++
++#define SYSCALL_ERROR_LABEL __syscall_error
++
++#undef PSEUDO
++#define PSEUDO(name, syscall_name, args) \
++ ENTRY (name) \
++ DO_CALL (syscall_name, args) \
++ bne r7, zero, SYSCALL_ERROR_LABEL; \
++
++#undef PSEUDO_END
++#define PSEUDO_END(name) \
++ SYSCALL_ERROR_HANDLER \
++ END (name)
++
++#undef PSEUDO_NOERRNO
++#define PSEUDO_NOERRNO(name, syscall_name, args) \
++ ENTRY (name) \
++ DO_CALL (syscall_name, args)
++
++#undef PSEUDO_END_NOERRNO
++#define PSEUDO_END_NOERRNO(name) \
++ END (name)
++
++#undef ret_NOERRNO
++#define ret_NOERRNO ret
++
++#undef DO_CALL
++#define DO_CALL(syscall_name, args) \
++ DOARGS_##args \
++ movi r2, SYS_ify(syscall_name); \
++ trap;
++
++#if defined(__PIC__) || defined(PIC)
++
++#define SYSCALL_ERROR_HANDLER \
++SYSCALL_ERROR_LABEL: \
++ subi sp, sp, 12; \
++ stw r22, 8(sp); \
++ stw r2, 4(sp); \
++ stw ra, 0(sp); \
++ nextpc r22; \
++1: movhi r8, %hiadj(_GLOBAL_OFFSET_TABLE_ - 1b); \
++ addi r8, r8, %lo(_GLOBAL_OFFSET_TABLE_ - 1b); \
++ add r22, r22, r8; \
++ ldw r3, %call(__errno_location)(r22); \
++ callr r3; \
++ ldw ra, 0(sp); \
++ ldw r10, 4(sp); \
++ ldw r22, 8(sp); \
++ addi sp, sp, 12; \
++ stw r10, 0(r2); \
++ movi r2, -1; \
++ ret;
++
++#else
++
++#define SYSCALL_ERROR_HANDLER \
++SYSCALL_ERROR_LABEL: \
++ subi sp, sp, 8; \
++ stw r2, 4(sp); \
++ stw ra, 0(sp); \
++ call __errno_location; \
++ ldw ra, 0(sp); \
++ ldw r10, 4(sp); \
++ addi sp, sp, 8; \
++ stw r10, 0(r2); \
++ movi r2, -1; \
++ ret;
++
++#endif
++
++#define DOARGS_0 /* nothing */
++#define DOARGS_1 /* nothing */
++#define DOARGS_2 /* nothing */
++#define DOARGS_3 /* nothing */
++#define DOARGS_4 /* nothing */
++#define DOARGS_5 ldw r8, 0(sp);
++#define DOARGS_6 ldw r9, 4(sp); ldw r8, 0(sp);
++
++/* The function has to return the error code. */
++#undef PSEUDO_ERRVAL
++#define PSEUDO_ERRVAL(name, syscall_name, args) \
++ ENTRY (name) \
++ DO_CALL (syscall_name, args)
++
++#undef PSEUDO_END_ERRVAL
++#define PSEUDO_END_ERRVAL(name) \
++ END (name)
++
++#define ret_ERRVAL ret
++
++#else /* __ASSEMBLER__ */
++
++#include <asm/unistd.h>
++
++/* Define a macro which expands into the inline wrapper code for a system
++ call. */
++#undef INLINE_SYSCALL
++#define INLINE_SYSCALL(name, nr, args...) \
++ ({ INTERNAL_SYSCALL_DECL(err); \
++ unsigned int result_var = INTERNAL_SYSCALL (name, err, nr, args); \
++ if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
++ { \
++ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
++ result_var = -1L; \
++ } \
++ (int) result_var; })
++
++#undef INTERNAL_SYSCALL_DECL
++#define INTERNAL_SYSCALL_DECL(err) unsigned int err
++
++#undef INTERNAL_SYSCALL_ERROR_P
++#define INTERNAL_SYSCALL_ERROR_P(val, err) ((unsigned int) (err))
++
++#undef INTERNAL_SYSCALL_ERRNO
++#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
++
++#undef INTERNAL_SYSCALL_RAW
++#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
++ ({ unsigned int _sys_result; \
++ { \
++ register int _r2 asm ("r2") = (int)(name); \
++ register int _err asm ("r7"); \
++ LOAD_ARGS_##nr (args) \
++ asm volatile ("trap" \
++ : "=r" (_r2), "=r" (_err) \
++ : ASM_ARGS_##nr \
++ : __SYSCALL_CLOBBERS); \
++ _sys_result = _r2; \
++ err = _err; \
++ } \
++ (int) _sys_result; })
++
++#undef INTERNAL_SYSCALL
++#define INTERNAL_SYSCALL(name, err, nr, args...) \
++ INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args)
++
++#undef INTERNAL_SYSCALL_NCS
++#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
++ INTERNAL_SYSCALL_RAW(number, err, nr, args)
++
++#define LOAD_ARGS_0()
++#define ASM_ARGS_0 "r" (_r2)
++#define LOAD_ARGS_1(a1) \
++ register int _r4 asm ("r4") = (int) (a1); \
++ LOAD_ARGS_0 ()
++#define ASM_ARGS_1 ASM_ARGS_0, "r" (_r4)
++#define LOAD_ARGS_2(a1, a2) \
++ register int _r5 asm ("r5") = (int) (a2); \
++ LOAD_ARGS_1 (a1)
++#define ASM_ARGS_2 ASM_ARGS_1, "r" (_r5)
++#define LOAD_ARGS_3(a1, a2, a3) \
++ register int _r6 asm ("r6") = (int) (a3); \
++ LOAD_ARGS_2 (a1, a2)
++#define ASM_ARGS_3 ASM_ARGS_2, "r" (_r6)
++#define LOAD_ARGS_4(a1, a2, a3, a4) \
++ register int _r7 asm ("r7") = (int) (a4); \
++ LOAD_ARGS_3 (a1, a2, a3)
++#define ASM_ARGS_4 ASM_ARGS_3, "r" (_r7)
++#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
++ register int _r8 asm ("r8") = (int) (a5); \
++ LOAD_ARGS_4 (a1, a2, a3, a4)
++#define ASM_ARGS_5 ASM_ARGS_4, "r" (_r8)
++#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
++ register int _r9 asm ("r9") = (int) (a6); \
++ LOAD_ARGS_5 (a1, a2, a3, a4, a5)
++#define ASM_ARGS_6 ASM_ARGS_5, "r" (_r9)
++
++
++#define __SYSCALL_CLOBBERS "r1", "r3", "r10", "r11", "r12", "r13", "r14", \
++ "r15", "r29", "memory"
++
++#endif /* __ASSEMBLER__ */
++
++#endif /* linux/nios2/sysdep.h */
git.openpandora.org / openembedded.git / commitdiff