Added AVR32 support to uClibc. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>

Rules.mak

@@ -317,6 +317,12 @@ ifeq ($(TARGET_ARCH),frv)
 	UCLIBC_LDSO=ld.so.1
 endif
 
+ifeq ($(strip $(TARGET_ARCH)),avr32)
+       CPU_CFLAGS-$(CONFIG_AVR32_AP7)  += -march=ap
+       CPU_CFLAGS-$(CONFIG_LINKRELAX)  += -mrelax
+       CPU_LDFLAGS-$(CONFIG_LINKRELAX) += --relax
+endif
+
 # Keep the check_gcc from being needlessly executed
 ifndef PIEFLAG
 ifneq ($(UCLIBC_BUILD_PIE),y)

extra/Configs/Config.avr32

@@ -0,0 +1,31 @@
+#
+# For a description of the syntax of this configuration file,
+# see extra/config/Kconfig-language.txt
+#
+
+config TARGET_ARCH
+       string
+       default "avr32"
+
+config FORCE_OPTIONS_FOR_ARCH
+       bool
+       default y
+       select ARCH_BIG_ENDIAN
+       select FORCE_SHAREABLE_TEXT_SEGMENTS
+
+config ARCH_CFLAGS
+       string
+
+choice
+       prompt "Target CPU Type"
+       default CONFIG_AVR32_AP7
+
+config CONFIG_AVR32_AP7
+       bool "AVR32 AP7"
+       select ARCH_HAS_MMU
+
+endchoice
+
+config LINKRELAX
+       bool "Enable linker optimizations"
+       default y

extra/Configs/Config.in

@@ -16,6 +16,9 @@ config TARGET_alpha
 config TARGET_arm
 	bool "arm"
 
+config TARGET_avr32
+       bool "avr32"
+
 config TARGET_bfin
 	bool "bfin"
 
@@ -92,6 +95,10 @@ if TARGET_arm
 source "extra/Configs/Config.arm"
 endif
 
+if TARGET_avr32
+source "extra/Configs/Config.avr32"
+endif
+
 if TARGET_bfin
 source "extra/Configs/Config.bfin"
 endif

extra/Configs/defconfigs/avr32

@@ -0,0 +1 @@
+TARGET_avr32=y

include/elf.h

@@ -354,6 +354,8 @@ typedef struct
 /* NIOS magic number - no EABI available.  */
 #define EM_NIOS32	0xFEBB
 
+#define EM_AVR32       0x18ad
+
 /* V850 backend magic number.  Written in the absense of an ABI.  */
 #define EM_CYGNUS_V850 0x9080
 
@@ -2830,6 +2832,55 @@ typedef Elf32_Addr Elf32_Conflict;
 /* Keep this the last entry.  */
 #define R_V850_NUM		25
 
+/* Atmel AVR32 relocations.  */
+#define R_AVR32_NONE           0
+#define R_AVR32_32             1
+#define R_AVR32_16             2
+#define R_AVR32_8              3
+#define R_AVR32_32_PCREL       4
+#define R_AVR32_16_PCREL       5
+#define R_AVR32_8_PCREL                6
+#define R_AVR32_DIFF32         7
+#define R_AVR32_DIFF16         8
+#define R_AVR32_DIFF8          9
+#define R_AVR32_GOT32          10
+#define R_AVR32_GOT16          11
+#define R_AVR32_GOT8           12
+#define R_AVR32_21S            13
+#define R_AVR32_16U            14
+#define R_AVR32_16S            15
+#define R_AVR32_8S             16
+#define R_AVR32_8S_EXT         17
+#define R_AVR32_22H_PCREL      18
+#define R_AVR32_18W_PCREL      19
+#define R_AVR32_16B_PCREL      20
+#define R_AVR32_16N_PCREL      21
+#define R_AVR32_14UW_PCREL     22
+#define R_AVR32_11H_PCREL      23
+#define R_AVR32_10UW_PCREL     24
+#define R_AVR32_9H_PCREL       25
+#define R_AVR32_9UW_PCREL      26
+#define R_AVR32_HI16           27
+#define R_AVR32_LO16           28
+#define R_AVR32_GOTPC          29
+#define R_AVR32_GOTCALL                30
+#define R_AVR32_LDA_GOT                31
+#define R_AVR32_GOT21S         32
+#define R_AVR32_GOT18SW                33
+#define R_AVR32_GOT16S         34
+#define R_AVR32_GOT7UW         35
+#define R_AVR32_32_CPENT       36
+#define R_AVR32_CPCALL         37
+#define R_AVR32_16_CP          38
+#define R_AVR32_9W_CP          39
+#define R_AVR32_RELATIVE       40
+#define R_AVR32_GLOB_DAT       41
+#define R_AVR32_JMP_SLOT       42
+#define R_AVR32_ALIGN          43
+#define R_AVR32_NUM            44
+
+/* AVR32 dynamic tags */
+#define DT_AVR32_GOTSZ         0x70000001 /* Total size of GOT in bytes */
 
 /* Renesas H8/300 Relocations */
 #define R_H8_NONE       0

ldso/include/dl-string.h

@@ -285,7 +285,8 @@ static __always_inline char * _dl_simple_ltoahex(char * local, unsigned long i)
 /* On some arches constant strings are referenced through the GOT.
  * This requires that load_addr must already be defined... */
 #if defined(mc68000)  || defined(__arm__) || defined(__thumb__) || \
-    defined(__mips__) || defined(__sh__)  || defined(__powerpc__)
+    defined(__mips__) || defined(__sh__)  || defined(__powerpc__) || \
+       defined(__avr32__)
 # define CONSTANT_STRING_GOT_FIXUP(X) \
 	if ((X) < (const char *) load_addr) (X) += load_addr
 # define NO_EARLY_SEND_STDERR

ldso/ldso/avr32/dl-debug.h

@@ -0,0 +1,45 @@
+/*
+ * AVR32 ELF shared libary loader support
+ *
+ * Copyright (C) 2005-2007 Atmel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. The name of the above contributors may not be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+static const char *_dl_reltypes_tab[] = {
+    "R_AVR32_NONE",
+    "R_AVR32_32", "R_AVR32_16", "R_AVR32_8",
+    "R_AVR32_32_PCREL", "R_AVR32_16_PCREL", "R_AVR32_8_PCREL",
+    "R_AVR32_DIFF32", "R_AVR32_DIFF16", "R_AVR32_DIFF8",
+    "R_AVR32_GOT32", "R_AVR32_GOT16", "R_AVR32_GOT8",
+    "R_AVR32_21S", "R_AVR32_16U", "R_AVR32_16S", "R_AVR32_8S", "R_AVR32_8S_EXT",
+    "R_AVR32_22H_PCREL", "R_AVR32_18W_PCREL", "R_AVR32_16B_PCREL",
+    "R_AVR32_16N_PCREL", "R_AVR32_14UW_PCREL", "R_AVR32_11H_PCREL",
+    "R_AVR32_10UW_PCREL", "R_AVR32_9H_PCREL", "R_AVR32_9UW_PCREL",
+    "R_AVR32_HI16", "R_AVR32_LO16",
+    "R_AVR32_GOTPC", "R_AVR32_GOTCALL", "R_AVR32_LDA_GOT",
+    "R_AVR32_GOT21S", "R_AVR32_GOT18SW", "R_AVR32_GOT16S", "R_AVR32_GOT7UW",
+    "R_AVR32_32_CPENT", "R_AVR32_CPCALL", "R_AVR32_16_CP", "R_AVR32_9W_CP",
+    "R_AVR32_RELATIVE", "R_AVR32_GLOB_DAT", "R_AVR32_JMP_SLOT",
+    "R_AVR32_ALIGN",
+};

ldso/ldso/avr32/dl-startup.h

@@ -0,0 +1,112 @@
+/*
+ * Architecture specific code used by dl-startup.c
+ *
+ * Copyright (C) 2005-2007 Atmel Corporation
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* This is the library loader's main entry point. Let _dl_boot2 do its
+ * initializations and jump to the application's entry point
+ * afterwards. */
+asm(   "       .text\n"
+       "       .global _start\n"
+       "       .type   _start,@function\n"
+       "_start:\n"
+       /* All arguments are on the stack initially */
+       "       mov     r12, sp\n"
+       "       rcall   _dl_start\n"
+       /* Returns user entry point in r12. Save it. */
+       "       mov     r0, r12\n"
+       /* We're PIC, so get the Global Offset Table */
+       "       lddpc   r6, .L_GOT\n"
+       ".L_RGOT:\n"
+       "       rsub    r6, pc\n"
+       /* Adjust argc and argv according to _dl_skip_args */
+       "       ld.w    r1, r6[_dl_skip_args@got]\n"
+       "       ld.w    r1, r1[0]\n"
+       "       ld.w    r2, sp++\n"
+       "       sub     r2, r1\n"
+       "       add     sp, sp, r1 << 2\n"
+       "       st.w    --sp, r2\n"
+       /* Load the finalizer function */
+       "       ld.w    r12, r6[_dl_fini@got]\n"
+       /* Jump to the user's entry point */
+       "       mov     pc, r0\n\n"
+
+       "       .align  2\n"
+       ".L_GOT:"
+       "       .long   .L_RGOT - _GLOBAL_OFFSET_TABLE_\n"
+       "       .size   _start, . - _start\n"
+       "       .previous\n");
+
+/* Get a pointer to the argv array.  On many platforms this can be just
+ * the address if the first argument, on other platforms we need to
+ * do something a little more subtle here. */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long *)ARGS + 1)
+
+
+/* We can't call functions before the GOT has been initialized */
+#define NO_FUNCS_BEFORE_BOOTSTRAP
+
+/*
+ * Relocate the GOT during dynamic loader bootstrap.  This will add
+ * the load address to all entries in the GOT, which is necessary
+ * because the linker doesn't generate R_AVR32_RELATIVE relocs for the
+ * GOT.
+ */
+static __always_inline
+void PERFORM_BOOTSTRAP_GOT(struct elf_resolve *tpnt)
+{
+       Elf32_Addr i, nr_got;
+       register Elf32_Addr *__r6 __asm__("r6");
+       Elf32_Addr *got = __r6;
+
+       nr_got = tpnt->dynamic_info[DT_AVR32_GOTSZ_IDX] / sizeof(*got);
+       for (i = 2; i < nr_got; i++)
+               got[i] += tpnt->loadaddr;
+}
+
+#define PERFORM_BOOTSTRAP_GOT(tpnt) PERFORM_BOOTSTRAP_GOT(tpnt)
+
+/* Handle relocation of the symbols in the dynamic loader. */
+static __always_inline
+void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
+                            unsigned long symbol_addr,
+                            unsigned long load_addr, Elf32_Sym *symtab)
+{
+       switch(ELF32_R_TYPE(rpnt->r_info)) {
+       case R_AVR32_NONE:
+               break;
+       case R_AVR32_GLOB_DAT:
+       case R_AVR32_JMP_SLOT:
+               *reloc_addr = symbol_addr;
+               break;
+       case R_AVR32_RELATIVE:
+               SEND_STDERR_DEBUG("Applying RELATIVE relocation: ");
+               SEND_ADDRESS_STDERR_DEBUG(load_addr, 0);
+               SEND_STDERR_DEBUG(" + ");
+               SEND_ADDRESS_STDERR_DEBUG(rpnt->r_addend, 1);
+               *reloc_addr = load_addr + rpnt->r_addend;
+               break;
+       default:
+               SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc_type ");
+               SEND_NUMBER_STDERR(ELF32_R_TYPE(rpnt->r_info), 1);
+               SEND_STDERR("REL, SYMBOL, LOAD: ");
+               SEND_ADDRESS_STDERR(reloc_addr, 0);
+               SEND_STDERR(", ");
+               SEND_ADDRESS_STDERR(symbol_addr, 0);
+               SEND_STDERR(", ");
+               SEND_ADDRESS_STDERR(load_addr, 1);
+               _dl_exit(1);
+       }
+}
+
+/* Transfer control to the user's application, once the dynamic loader
+ * is done. This routine has to exit the current function, then call
+ * the _dl_elf_main function.
+ *
+ * Since our _dl_boot will simply call whatever is returned by
+ * _dl_boot2, we can just return the address we're supposed to
+ * call.  */
+#define START()        return _dl_elf_main;

ldso/ldso/avr32/dl-syscalls.h

@@ -0,0 +1,6 @@
+/* We can't use the real errno in ldso, since it has not yet
+ * been dynamicly linked in yet. */
+#include "sys/syscall.h"
+extern int _dl_errno;
+#undef __set_errno
+#define __set_errno(X) {(_dl_errno) = (X);}

ldso/ldso/avr32/dl-sysdep.h

@@ -0,0 +1,105 @@
+/*
+ * Various assembly language/system dependent hacks that are required
+ * so that we can minimize the amount of platform specific code.
+ *
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Define this if the system uses RELOCA. */
+#define ELF_USES_RELOCA
+
+#include <elf.h>
+
+#define ARCH_NUM 1
+#define DT_AVR32_GOTSZ_IDX     (DT_NUM + OS_NUM)
+
+#define ARCH_DYNAMIC_INFO(dpnt, dynamic, debug_addr)                   \
+       do {                                                            \
+               if (dpnt->d_tag == DT_AVR32_GOTSZ)                      \
+                       dynamic[DT_AVR32_GOTSZ_IDX] = dpnt->d_un.d_val; \
+       } while (0)
+
+/* Initialization sequence for the application/library GOT. */
+#define INIT_GOT(GOT_BASE,MODULE)                                      \
+       do {                                                            \
+               unsigned long i, nr_got;                                \
+                                                                       \
+               GOT_BASE[0] = (unsigned long) _dl_linux_resolve;        \
+               GOT_BASE[1] = (unsigned long) MODULE;                   \
+                                                                       \
+               /* Add load address displacement to all GOT entries */  \
+               nr_got = MODULE->dynamic_info[DT_AVR32_GOTSZ_IDX] / 4;  \
+               for (i = 2; i < nr_got; i++)                            \
+                       GOT_BASE[i] += (unsigned long)MODULE->loadaddr; \
+       } while (0)
+
+#define do_rem(result, n, base)        ((result) = (n) % (base))
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+#define MAGIC1 EM_AVR32
+#undef MAGIC2
+
+/* Used for error messages */
+#define ELF_TARGET "AVR32"
+
+unsigned long _dl_linux_resolver(unsigned long got_offset, unsigned long *got);
+
+/* 4096 bytes alignment */
+#define PAGE_ALIGN 0xfffff000
+#define ADDR_ALIGN 0xfff
+#define OFFS_ALIGN 0x7ffff000
+
+#define elf_machine_type_class(type)                           \
+       ((type == R_AVR32_JMP_SLOT) * ELF_RTYPE_CLASS_PLT)
+
+/* AVR32 doesn't need any COPY relocs */
+#define DL_NO_COPY_RELOCS
+
+/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
+   first element of the GOT.  This must be inlined in a function which
+   uses global data.  */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+       register Elf32_Addr *got asm ("r6");
+       return *got;
+}
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+       extern void __dl_start asm("_dl_start");
+       Elf32_Addr got_addr = (Elf32_Addr) &__dl_start;
+       Elf32_Addr pcrel_addr;
+
+       asm   ("        lddpc   %0, 2f\n"
+              "1:      add     %0, pc\n"
+              "        rjmp    3f\n"
+              "        .align  2\n"
+              "2:      .long   _dl_start - 1b\n"
+              "3:\n"
+              : "=r"(pcrel_addr) : : "cc");
+
+       return pcrel_addr - got_addr;
+}
+
+/*
+ * Perform any RELATIVE relocations specified by DT_RELCOUNT.
+ * Currently, we don't use that tag, but we might in the future as
+ * this would reduce the startup time somewhat (although probably not by much).
+ */
+static inline void
+elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr,
+                     Elf32_Word relative_count)
+{
+       Elf32_Rela *rpnt = (void *)rel_addr;
+
+       do {
+               Elf32_Addr *reloc_addr;
+               reloc_addr = (void *)(load_off + (rpnt++)->r_offset);
+               *reloc_addr = load_off + rpnt->r_addend;
+       } while (--relative_count);
+}

ldso/ldso/avr32/elfinterp.c

@@ -0,0 +1,193 @@
+/*
+ * AVR32 ELF shared library loader suppport
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. The name of the above contributors may not be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+unsigned long _dl_linux_resolver(unsigned long got_offset, unsigned long *got)
+{
+       /*
+        * AVR32 currently does not do lazy relocation.
+        */
+#if 0
+       struct elf_resolve *tpnt = (struct elf_resolve *)got[1];
+       Elf32_Sym *sym;
+       unsigned long local_gotno;
+       unsigned long gotsym;
+       unsigned long new_addr;
+       char *strtab, *symname;
+       unsigned long *entry;
+       unsigned long sym_index = got_offset / 4;
+
+       local_gotno = tpnt->dynamic_info[DT_AVR32_LOCAL_GOTNO];
+       gotsym = tpnt->dynamic_info[DT_AVR32_GOTSYM];
+
+       sym = ((Elf32_Sym *)(tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr))
+               + sym_index;
+       strtab = (char *)(tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr);
+       symname = strtab + sym->st_name;
+
+       new_addr = (unsigned long) _dl_find_hash(strtab + sym->st_name,
+                                                tpnt->symbol_scope, tpnt,
+                                                resolver);
+
+       entry = (unsigned long *)(got + local_gotno + sym_index - gotsym);
+       *entry = new_addr;
+
+       return new_addr;
+#endif
+       return 0;
+}
+
+static int
+_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
+         unsigned long rel_addr, unsigned long rel_size,
+         int (*reloc_func)(struct elf_resolve *tpnt, struct dyn_elf *scope,
+                           Elf32_Rela *rpnt, Elf32_Sym *symtab, char *strtab))
+{
+       Elf32_Sym *symtab;
+       Elf32_Rela *rpnt;
+       char *strtab;
+       int i;
+
+       rpnt = (Elf32_Rela *)rel_addr;
+       rel_size /= sizeof(Elf32_Rela);
+       symtab = (Elf32_Sym *)tpnt->dynamic_info[DT_SYMTAB];
+       strtab = (char *)tpnt->dynamic_info[DT_STRTAB];
+
+       for (i = 0; i < rel_size; i++, rpnt++) {
+               int symtab_index, res;
+
+               symtab_index = ELF32_R_SYM(rpnt->r_info);
+
+               debug_sym(symtab, strtab, symtab_index);
+               debug_reloc(symtab, strtab, rpnt);
+
+               res = reloc_func(tpnt, scope, rpnt, symtab, strtab);
+
+               if (res == 0)
+                       continue;
+
+               _dl_dprintf(2, "\n%s: ", _dl_progname);
+
+               if (symtab_index)
+                       _dl_dprintf(2, "symbol '%s': ",
+                                   strtab + symtab[symtab_index].st_name);
+
+               if (res < 0) {
+                       int reloc_type = ELF32_R_TYPE(rpnt->r_info);
+#if defined(__SUPPORT_LD_DEBUG__)
+                       _dl_dprintf(2, "can't handle reloc type %s\n",
+                                   _dl_reltypes(reloc_type));
+#else
+                       _dl_dprintf(2, "can't handle reloc type %x\n",
+                                   reloc_type);
+#endif
+                       _dl_exit(-res);
+               } else {
+                       _dl_dprintf(2, "can't resolve symbol\n");
+                       return res;
+               }
+       }
+
+       return 0;
+}
+
+static int _dl_do_reloc(struct elf_resolve *tpnt, struct dyn_elf *scope,
+                       Elf32_Rela *rpnt, Elf32_Sym *symtab, char *strtab)
+{
+       int reloc_type;
+       int symtab_index;
+       char *symname;
+       unsigned long *reloc_addr;
+       unsigned long symbol_addr;
+#if defined(__SUPPORT_LD_DEBUG__)
+       unsigned long old_val;
+#endif
+
+       reloc_addr = (unsigned long *)(tpnt->loadaddr + rpnt->r_offset);
+       reloc_type = ELF32_R_TYPE(rpnt->r_info);
+       symtab_index = ELF32_R_SYM(rpnt->r_info);
+       symbol_addr = 0;
+       symname = strtab + symtab[symtab_index].st_name;
+
+       if (symtab_index) {
+               symbol_addr = (unsigned long)
+                       _dl_find_hash(strtab + symtab[symtab_index].st_name,
+                                     tpnt->symbol_scope, tpnt,
+                                     elf_machine_type_class(reloc_type));
+
+               /* Allow undefined references to weak symbols */
+               if (!symbol_addr &&
+                   ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) {
+                       _dl_dprintf(2, "%s: can't resolve symbol '%s'\n",
+                                   _dl_progname, symname);
+                       return 0;
+               }
+       }
+
+#if defined(__SUPPORT_LD_DEBUG__)
+       old_val = *reloc_addr;
+#endif
+       switch (reloc_type) {
+       case R_AVR32_NONE:
+               break;
+       case R_AVR32_GLOB_DAT:
+       case R_AVR32_JMP_SLOT:
+               *reloc_addr = symbol_addr + rpnt->r_addend;
+               break;
+       case R_AVR32_RELATIVE:
+               *reloc_addr = (unsigned long)tpnt->loadaddr
+                       + rpnt->r_addend;
+               break;
+       default:
+               return -1;
+       }
+
+#if defined(__SUPPORT_LD_DEBUG__)
+       if (_dl_debug_reloc && _dl_debug_detail)
+               _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n",
+                           old_val, *reloc_addr);
+#endif
+
+       return 0;
+}
+
+void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt,
+                                          unsigned long rel_addr,
+                                          unsigned long rel_size)
+{
+       /* TODO: Might want to support this in order to get faster
+        * startup times... */
+}
+
+int _dl_parse_relocation_information(struct dyn_elf *rpnt,
+                                    unsigned long rel_addr,
+                                    unsigned long rel_size)
+{
+       return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size,
+                        _dl_do_reloc);
+}

ldso/ldso/avr32/resolve.S

@@ -0,0 +1,28 @@
+/*
+ * Linux dynamic resolving code for AVR32. Fixes up the GOT entry as
+ * indicated in register r12 and jumps to the resolved address.
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ *
+ * Copyright (C) 2004-2007 Atmel Corporation
+ */
+
+#define ip r5
+
+       .text
+       .global _dl_linux_resolve
+       .type   _dl_linux_resolve,@function
+_dl_linux_resolve:
+       /* The PLT code pushed r8 for us. It contains the address of this
+          function's GOT entry, that is entry 0. ip contains the address
+          of the GOT entry of the function we wanted to call. */
+       stm     --sp, r9-r12, lr
+       mov     r11, r8
+       sub     r12, ip, r8
+       rcall   _dl_linux_resolver
+       mov     ip, r12
+       popm    r8-r12,lr
+       mov     pc, ip
+       .size   _dl_linux_resolve, . - _dl_linux_resolve

ldso/ldso/dl-startup.c

@@ -217,7 +217,9 @@ DL_START(unsigned long args)
 	/* some arches (like MIPS) we have to tweak the GOT before relocations */
 	PERFORM_BOOTSTRAP_GOT(tpnt);
 
-#else
+#endif
+
+#if !defined(PERFORM_BOOTSTRAP_GOT) || defined(__avr32__)
 
 	/* OK, now do the relocations.  We do not do a lazy binding here, so
 	   that once we are done, we have considerably more flexibility. */

libc/string/avr32/Makefile

@@ -0,0 +1,26 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org>
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Library General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option) any
+# later version.
+#
+# This program 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 Library General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Library General Public License
+# along with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+top_srcdir     := ../../../
+top_builddir   := ../../../
+
+all: objs
+
+include $(top_builddir)Rules.mak
+include ../Makefile.in
+include $(top_srcdir)Makerules

libc/string/avr32/bcopy.S

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <features.h>
+
+#ifdef __UCLIBC_SUSV3_LEGACY__
+
+       .text
+       .global bcopy
+       .type   bcopy, @function
+       .align  1
+bcopy:
+       /* Swap the first two arguments */
+       eor     r11, r12
+       eor     r12, r11
+       eor     r11, r12
+       rjmp    __GI_memmove
+
+       .size   bcopy, . - bcopy
+
+#endif /* __UCLIBC_SUSV3_LEGACY__ */

libc/string/avr32/bzero.S

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#ifdef __UCLIBC_SUSV3_LEGACY__
+
+       .text
+       .global bzero
+       .type   bzero, @function
+       .align  1
+bzero:
+       mov     r10, r11
+       mov     r11, 0
+       rjmp    __memset
+
+       .size   bzero, . - bzero
+
+#endif /* __UCLIBC_SUSV3_LEGACY__ */

libc/string/avr32/memcmp.S

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <features.h>
+
+#define s1 r12
+#define s2 r11
+#define len r10
+
+       .text
+       .global memcmp
+       .type   memcmp, @function
+       .align  1
+memcmp:
+       sub     len, 4
+       brlt    .Lless_than_4
+
+1:     ld.w    r8, s1++
+       ld.w    r9, s2++
+       cp.w    r8, r9
+       brne    .Lfound_word
+       sub     len, 4
+       brge    1b
+
+.Lless_than_4:
+       sub     len, -4
+       reteq   0
+
+1:     ld.ub   r8, s1++
+       ld.ub   r9, s2++
+       sub     r8, r9
+       retne   r8
+       sub     len, 1
+       brgt    1b
+
+       retal   0
+
+.Lfound_word:
+       mov     len, 4
+
+2:     bfextu  r11, r9, 24, 8
+       bfextu  r12, r8, 24, 8
+       sub     r12, r11
+       retne   r12
+       lsl     r8, 8
+       lsl     r9, 8
+       sub     len, 1
+       brne    2b
+       retal   r12
+
+       .size   memcmp, . - memcmp
+
+libc_hidden_def(memcmp)
+#ifdef __UCLIBC_SUSV3_LEGACY__
+strong_alias(memcmp,bcmp)
+#endif

libc/string/avr32/memcpy.S

@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+/* Don't use r12 as dst since we must return it unmodified */
+#define dst r9
+#define src r11
+#define len r10
+
+       .text
+       .global memcpy
+       .type   memcpy, @function
+memcpy:
+       pref    src[0]
+       mov     dst, r12
+
+       /* If we have less than 32 bytes, don't do anything fancy */
+       cp.w    len, 32
+       brge    .Lmore_than_31
+
+       sub     len, 1
+       retlt   r12
+1:     ld.ub   r8, src++
+       st.b    dst++, r8
+       sub     len, 1
+       brge    1b
+       retal   r12
+
+.Lmore_than_31:
+       pushm   r0-r7, lr
+
+       /* Check alignment */
+       mov     r8, src
+       andl    r8, 31, COH
+       brne    .Lunaligned_src
+       mov     r8, dst
+       andl    r8, 3, COH
+       brne    .Lunaligned_dst
+
+.Laligned_copy:
+       sub     len, 32
+       brlt    .Lless_than_32
+
+1:     /* Copy 32 bytes at a time */
+       ldm     src, r0-r7
+       sub     src, -32
+       stm     dst, r0-r7
+       sub     dst, -32
+       sub     len, 32
+       brge    1b
+
+.Lless_than_32:
+       /* Copy 16 more bytes if possible */
+       sub     len, -16
+       brlt    .Lless_than_16
+       ldm     src, r0-r3
+       sub     src, -16
+       sub     len, 16
+       stm     dst, r0-r3
+       sub     dst, -16
+
+.Lless_than_16:
+       /* Do the remaining as byte copies */
+       neg     len
+       add     pc, pc, len << 2
+       .rept   15
+       ld.ub   r0, src++
+       st.b    dst++, r0
+       .endr
+
+       popm    r0-r7, pc
+
+.Lunaligned_src:
+       /* Make src cacheline-aligned. r8 = (src & 31) */
+       rsub    r8, r8, 32
+       sub     len, r8
+1:     ld.ub   r0, src++
+       st.b    dst++, r0
+       sub     r8, 1
+       brne    1b
+
+       /* If dst is word-aligned, we're ready to go */
+       pref    src[0]
+       mov     r8, 3
+       tst     dst, r8
+       breq    .Laligned_copy
+
+.Lunaligned_dst:
+       /* src is aligned, but dst is not. Expect bad performance */
+       sub     len, 4
+       brlt    2f
+1:     ld.w    r0, src++
+       st.w    dst++, r0
+       sub     len, 4
+       brge    1b
+
+2:     neg     len
+       add     pc, pc, len << 2
+       .rept   3
+       ld.ub   r0, src++
+       st.b    dst++, r0
+       .endr
+
+       popm    r0-r7, pc
+       .size   memcpy, . - memcpy
+
+libc_hidden_def(memcpy)

libc/string/avr32/memmove.S

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#define dst r12
+#define src r11
+#define len r10
+
+       .text
+       .global memmove
+       .type   memmove, @function
+memmove:
+       cp.w    src, dst
+       brge    __GI_memcpy
+
+       add     dst, len
+       add     src, len
+       pref    src[-1]
+
+       /*
+        * The rest is basically the same as in memcpy.S except that
+        * the direction is reversed.
+        */
+       cp.w    len, 32
+       brge    .Lmore_than_31
+
+       sub     len, 1
+       retlt   r12
+1:     ld.ub   r8, --src
+       st.b    --dst, r8
+       sub     len, 1
+       brge    1b
+       retal   r12
+
+.Lmore_than_31:
+       pushm   r0-r7, lr
+
+       /* Check alignment */
+       mov     r8, src
+       andl    r8, 31, COH
+       brne    .Lunaligned_src
+       mov     r8, r12
+       andl    r8, 3, COH
+       brne    .Lunaligned_dst
+
+.Laligned_copy:
+       sub     len, 32
+       brlt    .Lless_than_32
+
+1:     /* Copy 32 bytes at a time */
+       sub     src, 32
+       ldm     src, r0-r7
+       sub     dst, 32
+       sub     len, 32
+       stm     dst, r0-r7
+       brge    1b
+
+.Lless_than_32:
+       /* Copy 16 more bytes if possible */
+       sub     len, -16
+       brlt    .Lless_than_16
+       sub     src, 16
+       ldm     src, r0-r3
+       sub     dst, 16
+       sub     len, 16
+       stm     dst, r0-r3
+
+.Lless_than_16:
+       /* Do the remaining as byte copies */
+       sub     len, -16
+       breq    2f
+1:     ld.ub   r0, --src
+       st.b    --dst, r0
+       sub     len, 1
+       brne    1b
+
+2:     popm    r0-r7, pc
+
+.Lunaligned_src:
+       /* Make src cacheline-aligned. r8 = (src & 31) */
+       sub     len, r8
+1:     ld.ub   r0, --src
+       st.b    --dst, r0
+       sub     r8, 1
+       brne    1b
+
+       /* If dst is word-aligned, we're ready to go */
+       pref    src[-4]
+       mov     r8, 3
+       tst     dst, r8
+       breq    .Laligned_copy
+
+.Lunaligned_dst:
+       /* src is aligned, but dst is not. Expect bad performance */
+       sub     len, 4
+       brlt    2f
+1:     ld.w    r0, --src
+       st.w    --dst, r0
+       sub     len, 4
+       brge    1b
+
+2:     neg     len
+       add     pc, pc, len << 2
+       .rept   3
+       ld.ub   r0, --src
+       st.b    --dst, r0
+       .endr
+
+       popm    r0-r7, pc
+       .size   memmove, . - memmove
+
+libc_hidden_def(memmove)

libc/string/avr32/memset.S

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <features.h>
+
+#define s r12
+#define c r11
+#define n r10
+
+       .text
+       .global memset
+       .type   memset, @function
+
+       .global __memset
+       .hidden __memset
+       .type   __memset, @function
+
+       .align  1
+memset:
+__memset:
+       cp.w    n, 32
+       mov     r9, s
+       brge    .Llarge_memset
+
+       sub     n, 1
+       retlt   s
+1:     st.b    s++, c
+       sub     n, 1
+       brge    1b
+
+       retal   r9
+
+.Llarge_memset:
+       mov     r8, r11
+       mov     r11, 3
+       bfins   r8, r8, 8, 8
+       bfins   r8, r8, 16, 16
+       tst     s, r11
+       breq    2f
+
+1:     st.b    s++, r8
+       sub     n, 1
+       tst     s, r11
+       brne    1b
+
+2:     mov     r11, r9
+       mov     r9, r8
+       sub     n, 8
+
+3:     st.d    s++, r8
+       sub     n, 8
+       brge    3b
+
+       /* If we are done, n == -8 and we'll skip all st.b insns below */
+       neg     n
+       lsl     n, 1
+       add     pc, n
+       .rept   7
+       st.b    s++, r8
+       .endr
+       retal   r11
+
+       .size   memset, . - memset
+
+libc_hidden_def(memset)

libc/string/avr32/strcmp.S

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <features.h>
+
+#define s1 r12
+#define s2 r11
+#define len r10
+
+       .text
+       .global strcmp
+       .type   strcmp, @function
+       .align  1
+strcmp:
+       mov     r8, 3
+       tst     s1, r8
+       brne    .Lunaligned_s1
+       tst     s2, r8
+       brne    .Lunaligned_s2
+
+1:     ld.w    r8, s1++
+       ld.w    r9, s2++
+       cp.w    r8, r9
+       brne    2f
+       tnbz    r8
+       brne    1b
+       retal   0
+
+2:     bfextu  r12, r8, 24, 8
+       bfextu  r11, r9, 24, 8
+       sub     r12, r11
+       retne   r12
+       cp.w    r11, 0
+       reteq   0
+       bfextu  r12, r8, 16, 8
+       bfextu  r11, r9, 16, 8
+       sub     r12, r11
+       retne   r12
+       cp.w    r11, 0
+       reteq   0
+       bfextu  r12, r8, 8, 8
+       bfextu  r11, r9, 8, 8
+       sub     r12, r11
+       retne   r12
+       cp.w    r11, 0
+       reteq   0
+       bfextu  r12, r8, 0, 8
+       bfextu  r11, r9, 0, 8
+       sub     r12, r11
+       retal   r12
+
+.Lunaligned_s1:
+3:     tst     s1, r8
+       breq    4f
+       ld.ub   r10, s1++
+       ld.ub   r9, s2++
+       sub     r10, r9
+       retne   r10
+       cp.w    r9, 0
+       brne    3b
+       retal   r10
+
+4:     tst     s2, r8
+       breq    1b
+
+.Lunaligned_s2:
+       /*
+        * s1 and s2 can't both be aligned, and unaligned word loads
+        * can trigger spurious exceptions if we cross a page boundary.
+        * Do it the slow way...
+        */
+1:     ld.ub   r8, s1++
+       ld.ub   r9, s2++
+       sub     r8, r9
+       retne   r8
+       cp.w    r9, 0
+       brne    1b
+       retal   0
+
+       .size   strcmp, . - strcmp
+
+libc_hidden_def(strcmp)
+#ifndef __UCLIBC_HAS_LOCALE__
+strong_alias(strcmp, strcoll)
+libc_hidden_def(strcoll)
+#endif

libc/string/avr32/strlen.S

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <features.h>
+
+#define str r12
+
+       .text
+       .global strlen
+       .type   strlen, @function
+strlen:
+       mov     r11, r12
+
+       mov     r9, str
+       andl    r9, 3, COH
+       brne    .Lunaligned_str
+
+1:     ld.w    r8, str++
+       tnbz    r8
+       brne    1b
+
+       sub     r12, r11
+       bfextu  r9, r8, 24, 8
+       cp.w    r9, 0
+       subeq   r12, 4
+       reteq   r12
+       bfextu  r9, r8, 16, 8
+       cp.w    r9, 0
+       subeq   r12, 3
+       reteq   r12
+       bfextu  r9, r8, 8, 8
+       cp.w    r9, 0
+       subeq   r12, 2
+       reteq   r12
+       sub     r12, 1
+       retal   r12
+
+.Lunaligned_str:
+       add     pc, pc, r9 << 3
+       sub     r0, r0, 0       /* 4-byte nop */
+       ld.ub   r8, str++
+       sub     r8, r8, 0
+       breq    1f
+       ld.ub   r8, str++
+       sub     r8, r8, 0
+       breq    1f
+       ld.ub   r8, str++
+       sub     r8, r8, 0
+       brne    1b
+
+1:     sub     r12, 1
+       sub     r12, r11
+       retal   r12
+
+       .size   strlen, . - strlen
+
+libc_hidden_def(strlen)

libc/sysdeps/linux/avr32/Makefile

@@ -0,0 +1,25 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org>
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Library General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option) any
+# later version.
+#
+# This program 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 Library General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Library General Public License
+# along with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules

libc/sysdeps/linux/avr32/Makefile.arch

@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+CSRC   := brk.c clone.c mmap.c sigaction.c
+
+SSRC   := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S      \
+               sigrestorer.S syscall.S vfork.S
+
+include $(top_srcdir)/libc/sysdeps/linux/Makefile.commonarch

libc/sysdeps/linux/avr32/__longjmp.S

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+       .global __longjmp
+       .type   __longjmp,"function"
+       .align  1
+__longjmp:
+       ldm     r12++, r0-r8,sp,lr
+       mustr   r8              /* restore status register (lower half) */
+       cp      r11, 0          /* can't return zero */
+       frs
+       moveq   r11, 1
+       retal   r11
+       .size   __longjmp, . - __longjmp
+
+libc_hidden_def(__longjmp)

libc/sysdeps/linux/avr32/bits/atomic.h

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#ifndef _AVR32_BITS_ATOMIC_H
+#define _AVR32_BITS_ATOMIC_H 1
+
+#include <inttypes.h>
+
+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;
+
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval)     \
+       (abort(), 0)
+
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval)    \
+       (abort(), 0)
+
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval)    \
+       ({                                                              \
+               __typeof__(*(mem)) __prev;                              \
+               __asm__ __volatile__(                                   \
+                       "/* __arch_compare_and_exchange_val_32_acq */\n" \
+                       "1:     ssrf    5\n"                            \
+                       "       ld.w    %[result], %[m]\n"              \
+                       "       cp.w    %[result], %[old]\n"            \
+                       "       brne    2f\n"                           \
+                       "       stcond  %[m], %[new]\n"                 \
+                       "       brne    1b\n"                           \
+                       "2:"                                            \
+                       : [result] "=&r"(__result), [m] "=m"(*(mem))    \
+                       : "m"(*(mem)), [old] "ir"(oldval),              \
+                         [new] "r"(newval)                             \
+                       : "memory", "cc");                              \
+               __prev;                                                 \
+       })
+
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval)    \
+       (abort(), 0)
+
+#define __arch_exchange_32_acq(mem, newval)                            \
+       ({                                                              \
+               __typeof__(*(mem)) __oldval;                            \
+               __asm__ __volatile__(                                   \
+                       "/*__arch_exchange_32_acq */\n"                 \
+                       "       xchg    %[old], %[m], %[new]"           \
+                       : [old] "=&r"(__oldval)                         \
+                       : [m] "r"(mem), [new] "r"(newval)               \
+                       : "memory");                                    \
+               __oldval;                                               \
+       })
+
+#define __arch_atomic_exchange_and_add_32(mem, value)                  \
+       ({                                                              \
+               __typeof__(*(mem)) __oldval, __tmp;                     \
+               __asm__ __volatile__(                                   \
+                       "/* __arch_atomic_exchange_and_add_32 */\n"     \
+                       "1:     ssrf    5\n"                            \
+                       "       ld.w    %[old], %[m]\n"                 \
+                       "       add     %[tmp], %[old], %[val]\n"       \
+                       "       stcond  %[m], %[tmp]\n"                 \
+                       "       brne    1b"                             \
+                       : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp),    \
+                         [m] "=m"(*(mem))                              \
+                       : "m"(*(mem)), [val] "r"(value)                 \
+                       : "memory", "cc");                              \
+               __oldval;                                               \
+       })
+
+#define __arch_atomic_decrement_if_positive_32(mem)                    \
+       ({                                                              \
+               __typeof__(*(mem)) __oldval, __tmp;                     \
+               __asm__ __volatile__(                                   \
+                       "/* __arch_atomic_decrement_if_positive_32 */\n" \
+                       "1:     ssrf    5\n"                            \
+                       "       ld.w    %[old], %[m]\n"                 \
+                       "       sub     %[tmp], %[old], 1\n"            \
+                       "       brlt    2f\n"                           \
+                       "       stcond  %[m], %[tmp]\n"                 \
+                       "       brne    1b"                             \
+                       "2:"                                            \
+                       : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp),    \
+                         [m] "=m"(*(mem))                              \
+                       : "m"(*(mem))                                   \
+                       : "memory", "cc");                              \
+               __oldval;                                               \
+       })
+
+#define atomic_exchange_acq(mem, newval)                               \
+       ({                                                              \
+               if (sizeof(*(mem)) != 4)                                \
+                       abort();                                        \
+               __arch_exchange_32_acq(mem, newval);                    \
+       })
+
+#define atomic_exchange_and_add(mem, newval)                           \
+       ({                                                              \
+               if (sizeof(*(mem)) != 4)                                \
+                       abort();                                        \
+               __arch_atomic_exchange_and_add_32(mem, newval);         \
+       })
+
+#define atomic_decrement_if_positive(mem)                              \
+       ({                                                              \
+               if (sizeof(*(mem)) != 4)                                \
+                       abort();                                        \
+               __arch_atomic_decrement_if_positive_32(mem);            \
+       })
+
+#endif /* _AVR32_BITS_ATOMIC_H */

libc/sysdeps/linux/avr32/bits/byteswap.h

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2005 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
+/* Swap bytes in 16 bit value.  */
+#if defined __GNUC__
+# define __bswap_16(x) (__extension__ __builtin_bswap_16(x))
+#else
+/* This is better than nothing.  */
+static __inline unsigned short int
+__bswap_16 (unsigned short int __bsx)
+{
+       return ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8));
+}
+#endif
+
+/* Swap bytes in 32 bit value.  */
+#if defined __GNUC__
+# define __bswap_32(x) (__extension__ __builtin_bswap_32(x))
+#else
+static __inline unsigned int
+__bswap_32 (unsigned int __bsx)
+{
+  return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >>  8) |
+         (((__bsx) & 0x0000ff00) <<  8) | (((__bsx) & 0x000000ff) << 24));
+}
+#endif
+
+#if defined __GNUC__
+/* Swap bytes in 64 bit value.  */
+# define __bswap_constant_64(x)                                \
+       ((((x) & 0xff00000000000000ull) >> 56)          \
+        | (((x) & 0x00ff000000000000ull) >> 40)        \
+        | (((x) & 0x0000ff0000000000ull) >> 24)        \
+        | (((x) & 0x000000ff00000000ull) >> 8)         \
+        | (((x) & 0x00000000ff000000ull) << 8)         \
+        | (((x) & 0x0000000000ff0000ull) << 24)        \
+        | (((x) & 0x000000000000ff00ull) << 40)        \
+        | (((x) & 0x00000000000000ffull) << 56))
+
+# define __bswap_64(x)                                                 \
+       (__extension__                                                  \
+        ({                                                             \
+                union {                                                \
+                        __extension__ unsigned long long int __ll;     \
+                        unsigned int __l[2];                           \
+                } __w, __r;                                            \
+                if (__builtin_constant_p(x))                           \
+                        __r.__ll = __bswap_constant_64(x);             \
+                else {                                                 \
+                        __w.__ll = (x);                                \
+                        __r.__l[0] = __bswap_32(__w.__l[1]);           \
+                        __r.__l[1] = __bswap_32(__w.__l[0]);           \
+                }                                                      \
+                __r.__ll;                                              \
+        }))
+#endif
+
+#endif /* _BITS_BYTESWAP_H */

libc/sysdeps/linux/avr32/bits/endian.h

@@ -0,0 +1,7 @@
+/* AVR32 is big-endian */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __BIG_ENDIAN

libc/sysdeps/linux/avr32/bits/fcntl.h

@@ -0,0 +1,165 @@
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+#include <sys/types.h>
+
+/*
+ * open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ * located on an ext2 file system
+ */
+#define O_ACCMODE      00000003
+#define O_RDONLY       00000000
+#define O_WRONLY       00000001
+#define O_RDWR         00000002
+#define O_CREAT                00000100        /* not fcntl */
+#define O_EXCL         00000200        /* not fcntl */
+#define O_NOCTTY       00000400        /* not fcntl */
+#define O_TRUNC                00001000        /* not fcntl */
+#define O_APPEND       00002000
+#define O_NONBLOCK     00004000
+#define O_NDELAY       O_NONBLOCK
+#define O_SYNC         00010000
+#define O_ASYNC                00020000
+
+#ifdef __USE_GNU
+# define O_DIRECT      00040000        /* must be a directory */
+# define O_DIRECTORY   00200000        /* direct disk access */
+# define O_NOFOLLOW    00400000        /* don't follow links */
+# define O_NOATIME     01000000        /* don't set atime */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE   00100000
+#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
+
+#define F_DUPFD                0       /* dup */
+#define F_GETFD                1       /* get close_on_exec */
+#define F_SETFD                2       /* set/clear close_on_exec */
+#define F_GETFL                3       /* get file->f_flags */
+#define F_SETFL                4       /* set file->f_flags */
+
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK       5
+# define F_SETLK       6
+# define F_SETLKW      7
+#else
+# define F_GETLK       F_GETLK64
+# define F_SETLK       F_SETLK64
+# define F_SETLKW      F_SETLKW64
+#endif
+#define F_GETLK64      12      /*  using 'struct flock64' */
+#define F_SETLK64      13
+#define F_SETLKW64     14
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN      8       /*  for sockets. */
+# define F_GETOWN      9       /*  for sockets. */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG      10      /*  for sockets. */
+# define F_GETSIG      11      /*  for sockets. */
+#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 lockf() */
+#define F_RDLCK                0
+#define F_WRLCK                1
+#define F_UNLCK                2
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK                4       /* or 3 */
+#define F_SHLCK                8       /* or 4 */
+
+/* for leases */
+#define F_INPROGRESS   16
+
+#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 ops */
+#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           l_type;
+       short           l_whence;
+#ifndef __USE_FILE_OFFSET64
+       __off_t         l_start;
+       __off_t         l_len;
+#else
+       __off64_t       l_start;
+       __off64_t       l_len;
+#endif
+       __pid_t         l_pid;
+};
+
+#ifdef __USE_LARGEFILE64
+struct flock64 {
+       short           l_type;
+       short           l_whence;
+       __off64_t       l_start;
+       __off64_t       l_len;
+       __pid_t         l_pid;
+};
+#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

libc/sysdeps/linux/avr32/bits/kernel_stat.h

@@ -0,0 +1,67 @@
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+#ifndef _LIBC
+#error bits/kernel_stat.h is for internal uClibc use only!
+#endif
+
+/*
+ * This file provides struct stat, taken from kernel 2.6.4. Verified
+ * to match kernel 2.6.22.
+ */
+
+struct kernel_stat {
+        unsigned long          st_dev;
+        unsigned long          st_ino;
+        unsigned short         st_mode;
+        unsigned short         st_nlink;
+        unsigned short         st_uid;
+        unsigned short         st_gid;
+        unsigned long          st_rdev;
+        unsigned long          st_size;
+        unsigned long          st_blksize;
+        unsigned long          st_blocks;
+        unsigned long          st_atime;
+        unsigned long          st_atime_nsec;
+        unsigned long          st_mtime;
+        unsigned long          st_mtime_nsec;
+        unsigned long          st_ctime;
+        unsigned long          st_ctime_nsec;
+        unsigned long          __unused4;
+        unsigned long          __unused5;
+};
+
+#define STAT_HAVE_NSEC 1
+
+struct kernel_stat64 {
+       unsigned long long      st_dev;
+
+       unsigned long long      st_ino;
+       unsigned int            st_mode;
+       unsigned int            st_nlink;
+
+       unsigned long           st_uid;
+       unsigned long           st_gid;
+
+       unsigned long long      st_rdev;
+
+       long long               st_size;
+       unsigned long           __pad1;
+       unsigned long           st_blksize;
+
+       unsigned long long      st_blocks;
+
+       unsigned long           st_atime;
+       unsigned long           st_atime_nsec;
+
+       unsigned long           st_mtime;
+       unsigned long           st_mtime_nsec;
+
+       unsigned long           st_ctime;
+       unsigned long           st_ctime_nsec;
+
+       unsigned long           __unused1;
+       unsigned long           __unused2;
+};
+
+#endif /* _BITS_STAT_STRUCT_H */

libc/sysdeps/linux/avr32/bits/kernel_types.h

@@ -0,0 +1,55 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h.  This will avoid gratuitous conflicts
+ * with the posix_types.h kernel header, and will ensure that
+ * our private content, and not the kernel header, will win.
+ *  -Erik
+ */
+#ifndef __ASM_AVR32_POSIX_TYPES_H
+#define __ASM_AVR32_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long          __kernel_dev_t;
+typedef unsigned long          __kernel_ino_t;
+typedef unsigned short         __kernel_mode_t;
+typedef unsigned short         __kernel_nlink_t;
+typedef long                   __kernel_off_t;
+typedef int                    __kernel_pid_t;
+typedef unsigned short         __kernel_ipc_pid_t;
+typedef unsigned int           __kernel_uid_t;
+typedef unsigned int           __kernel_gid_t;
+typedef unsigned long          __kernel_size_t;
+typedef long                   __kernel_ssize_t;
+typedef int                    __kernel_ptrdiff_t;
+typedef long                   __kernel_time_t;
+typedef long                   __kernel_suseconds_t;
+typedef long                   __kernel_clock_t;
+typedef int                    __kernel_timer_t;
+typedef int                    __kernel_clockid_t;
+typedef int                    __kernel_daddr_t;
+typedef char *                 __kernel_caddr_t;
+typedef unsigned short         __kernel_uid16_t;
+typedef unsigned short         __kernel_gid16_t;
+typedef unsigned int           __kernel_uid32_t;
+typedef unsigned int           __kernel_gid32_t;
+typedef unsigned short         __kernel_old_uid_t;
+typedef unsigned short         __kernel_old_gid_t;
+typedef unsigned short         __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long              __kernel_loff_t;
+#endif
+
+typedef struct {
+#if defined(__USE_ALL)
+       int     val[2];
+#else
+       int     __val[2];
+#endif
+} __kernel_fsid_t;
+
+#endif /* __ASM_AVR32_POSIX_TYPES_H */

libc/sysdeps/linux/avr32/bits/mman.h

@@ -0,0 +1,103 @@
+/* Definitions for POSIX memory map interface.  Linux/AVR32 version.
+   Copyright (C) 1997, 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.  */
+
+#ifndef _SYS_MMAN_H
+# error "Never include this file directly.  Use <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 0x20            /* Don't use a file.  */
+# define MAP_ANON      MAP_ANONYMOUS
+#endif
+
+/* These are Linux-specific.  */
+#ifdef __USE_MISC
+# 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          /* Lock the mapping.  */
+# define MAP_NORESERVE 0x4000          /* Don't check for reservations.  */
+# 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
+
+/* Advise 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

libc/sysdeps/linux/avr32/bits/setjmp.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2004-2005 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined _SETJMP_H && !defined _PTHREAD_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+/*
+ * The jump buffer contains r0-r7, sr, sp and lr. Other registers are
+ * not saved.
+ */
+typedef int __jmp_buf[11];
+#endif
+
+#define __JMP_BUF_SP   4
+
+/* Test if longjmp to JMPBUF would unwind the frame containing a local
+   variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *)(address) < (void *)(jmpbuf[__JMP_BUF_SP]))
+
+#endif /* _BITS_SETJMP_H */

libc/sysdeps/linux/avr32/bits/stackinfo.h

@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 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 AVR32 the stack grows down. */
+#define _STACK_GROWS_DOWN      1
+
+#endif /* stackinfo.h */

libc/sysdeps/linux/avr32/bits/syscalls.h

@@ -0,0 +1,143 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/*
+ * This includes the `__NR_<name>' syscall numbers taken from the
+ * Linux kernel header files. It also defines the traditional
+ * `SYS_<name>' macros for older programs.
+ */
+#include <bits/sysnum.h>
+
+#ifndef __ASSEMBLER__
+
+#include <errno.h>
+
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
+#undef _syscall0
+#define _syscall0(type,name)                           \
+       type name(void)                                 \
+       {                                               \
+               return (type)(INLINE_SYSCALL(name, 0)); \
+       }
+
+#undef _syscall1
+#define _syscall1(type,name,type1,arg1)                                \
+       type name(type1 arg1)                                   \
+       {                                                       \
+               return (type)(INLINE_SYSCALL(name, 1, arg1));   \
+       }
+
+#undef _syscall2
+#define _syscall2(type,name,type1,arg1,type2,arg2)                     \
+       type name(type1 arg1, type2 arg2)                               \
+       {                                                               \
+               return (type)(INLINE_SYSCALL(name, 2, arg1, arg2));     \
+       }
+
+#undef _syscall3
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)          \
+       type name(type1 arg1, type2 arg2, type3 arg3)                   \
+       {                                                               \
+               return (type)(INLINE_SYSCALL(name, 3, arg1,             \
+                                            arg2, arg3));              \
+       }
+
+#undef _syscall4
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,          \
+                 type4,arg4)                                           \
+       type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)       \
+       {                                                               \
+               return (type)(INLINE_SYSCALL(name, 4, arg1, arg2,       \
+                                            arg3, arg4));              \
+       }
+
+#undef _syscall5
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,          \
+                 type4,arg4,type5,arg5)                                \
+       type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4,       \
+                 type5 arg5)                                           \
+       {                                                               \
+               return (type)(INLINE_SYSCALL(name, 5, arg1, arg2,       \
+                                            arg3, arg4, arg5));        \
+       }
+
+#undef _syscall6
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,          \
+                 type4,arg4,type5,arg5,type6,arg6)                     \
+       type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4,       \
+                 type5 arg5, type6 arg6)                               \
+       {                                                               \
+               return (type)(INLINE_SYSCALL(name, 6, arg1, arg2, arg3, \
+                                            arg4, arg5, arg6));        \
+       }
+
+#undef unlikely
+#define unlikely(x) __builtin_expect((x), 0)
+
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...)                              \
+       ({                                                              \
+               unsigned _sys_result = INTERNAL_SYSCALL(name, , nr, args); \
+               if (unlikely(INTERNAL_SYSCALL_ERROR_P(_sys_result, ))) { \
+                       __set_errno(INTERNAL_SYSCALL_ERRNO(_sys_result, )); \
+                       _sys_result = (unsigned int) -1;                \
+               }                                                       \
+               (int) _sys_result;                                      \
+       })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while(0)
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...)                       \
+       ({                                                              \
+               register int _a1 asm ("r12");                           \
+               register int _scno asm("r8") = SYS_ify(name);           \
+               LOAD_ARGS_##nr (args);                                  \
+               asm volatile ("scall    /* syscall " #name " */"        \
+                             : "=r" (_a1)                              \
+                             : "r"(_scno) ASM_ARGS_##nr                \
+                             : "cc", "memory");                        \
+               _a1;                                                    \
+       })
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err)             \
+       ((unsigned int)(val) >= 0xfffff001U)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, errr) (-(val))
+
+#define LOAD_ARGS_0() do { } while(0)
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(a1)                                        \
+       _a1 = (int) (a1);                               \
+       LOAD_ARGS_0()
+#define ASM_ARGS_1     ASM_ARGS_0, "r"(_a1)
+#define LOAD_ARGS_2(a1, a2)                            \
+       register int _a2 asm("r11") = (int)(a2);        \
+       LOAD_ARGS_1(a1)
+#define ASM_ARGS_2     ASM_ARGS_1, "r"(_a2)
+#define LOAD_ARGS_3(a1, a2, a3)                                \
+       register int _a3 asm("r10") = (int)(a3);        \
+       LOAD_ARGS_2(a1, a2)
+#define ASM_ARGS_3     ASM_ARGS_2, "r"(_a3)
+#define LOAD_ARGS_4(a1, a2, a3, a4)                    \
+       register int _a4 asm("r9") = (int)(a4);         \
+       LOAD_ARGS_3(a1, a2, a3)
+#define ASM_ARGS_4     ASM_ARGS_3, "r"(_a4)
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5)                        \
+       register int _a5 asm("r5") = (int)(a5);         \
+       LOAD_ARGS_4(a1, a2, a3, a4)
+#define ASM_ARGS_5     ASM_ARGS_4, "r"(_a5)
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6)            \
+       register int _a6 asm("r3") = (int)(a6);         \
+       LOAD_ARGS_5(a1, a2, a3, a4, a5)
+#define ASM_ARGS_6     ASM_ARGS_5, "r"(_a6)
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */

libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h

@@ -0,0 +1,45 @@
+/*
+ * Track misc arch-specific features that aren't config options
+ */
+
+#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
+#define _BITS_UCLIBC_ARCH_FEATURES_H
+
+/* instruction used when calling abort() to kill yourself */
+/* trigger illegal instruction exception, same as BUG in Linux */
+#define __UCLIBC_ABORT_INSTRUCTION__ ".short 0x5df0"
+
+/* can your target use syscall6() for mmap ? */
+#define __UCLIBC_MMAP_HAS_6_ARGS__
+
+/* does your target use syscall4() for truncate64 ? (32bit arches only) */
+#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__
+
+/* does your target have a broken create_module() ? */
+#undef __UCLIBC_BROKEN_CREATE_MODULE__
+
+/* does your target have to worry about older [gs]etrlimit() ? */
+#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
+
+/* does your target prefix all symbols with an _ ? */
+#define __UCLIBC_NO_UNDERSCORES__
+
+/* does your target have an asm .set ? */
+#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
+
+/* define if target doesn't like .global */
+#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__
+
+/* define if target supports .weak */
+#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
+
+/* define if target supports .weakext */
+#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
+
+/* needed probably only for ppc64 */
+#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__
+
+/* define if target supports IEEE signed zero floats */
+#define __UCLIBC_HAVE_SIGNED_ZERO__
+
+#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */

libc/sysdeps/linux/avr32/bits/wordsize.h

@@ -0,0 +1 @@
+#define __WORDSIZE     32

libc/sysdeps/linux/avr32/brk.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+libc_hidden_proto(brk)
+
+void *__curbrk attribute_hidden = 0;
+
+int brk (void *addr)
+{
+       void *newbrk;
+
+       newbrk = (void *)INLINE_SYSCALL(brk, 1, addr);
+
+       __curbrk = newbrk;
+
+       if (newbrk < addr) {
+               __set_errno (ENOMEM);
+               return -1;
+       }
+
+       return 0;
+}
+libc_hidden_def(brk)

libc/sysdeps/linux/avr32/bsd-_setjmp.S

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+       /* This just does a tail-call to __sigsetjmp(env, 0) */
+       .global _setjmp
+       .type   _setjmp,"function"
+       .align  1
+_setjmp:
+       mov     r11, 0
+       bral    __GI___sigsetjmp
+       .size   _setjmp, . - _setjmp

libc/sysdeps/linux/avr32/bsd-setjmp.S

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+       /* This just does a tail-call to __sigsetjmp(env, 1) */
+       .global setjmp
+       .type   setjmp,"function"
+       .align  1
+setjmp:
+       mov     r11, 1
+       bral    __GI___sigsetjmp
+       .size   setjmp, . - setjmp

libc/sysdeps/linux/avr32/clone.c

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2004 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+/*
+ * I don't know if we can be absolutely certain that the fn and arg
+ * parameters are preserved when returning as the child. If the
+ * compiler stores them in registers (r0-r7), they should be.
+ */
+int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg)
+{
+       register int (*_fn)(void *arg) = fn;
+       register void *_arg = arg;
+       int err;
+
+       /* Sanity check the arguments */
+       err = -EINVAL;
+       if (!fn)
+               goto syscall_error;
+       if (!child_stack)
+               goto syscall_error;
+
+       err = INLINE_SYSCALL(clone, 2, flags, child_stack);
+       if (err < 0)
+               goto syscall_error;
+       else if (err != 0)
+               return err;
+
+       _exit(_fn(_arg));
+
+syscall_error:
+       __set_errno (-err);
+       return -1;
+}

libc/sysdeps/linux/avr32/crt1.S

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ *
+ * When we enter _start, the stack looks like this:
+ *     argc            argument counter
+ *     argv[0]         pointer to program name
+ *     argv[1..argc-1] pointers to program args
+ *     NULL
+ *     env[0..N]       pointers to environment variables
+ *     NULL
+ *
+ * r12 contains a function pointer to be registered with `atexit'.
+ * This is how the dynamic linker arranges to have DT_FINI functions
+ * called for shared libraries that have been loaded before this
+ * code runs.
+ *
+ * We're going to call the following function:
+ * __uClibc_main(int (*main)(int, char **, char **), int argc,
+ *              char **argv, void (*app_init)(void), void (*app_fini)(void),
+ *              void (*rtld_fini)(void), void *stack_end)
+ *
+ * So we need to set up things as follows:
+ *     r12 = address of main
+ *     r11 = argc
+ *     r10 = &argv[0]
+ *     r9  = address of _init
+ *     r8  = address of _fini
+ *     sp[0] = whatever we got passed in r12
+ */
+
+#include <features.h>
+
+       .text
+       .global _start
+       .type   _start, @function
+_start:
+       /* Clear the frame pointer and link register since this is the outermost frame.  */
+       mov     r7, 0
+       mov     lr, 0
+
+       ld.w    r11, sp++               /* argc         */
+       mov     r10, sp                 /* &argv[0]     */
+
+       st.w    --sp, r10               /* stack_end */
+       st.w    --sp, r12               /* rtld_fini */
+
+#ifdef __PIC__
+       lddpc   r6, .L_GOT
+.L_RGOT:
+       rsub    r6, pc
+       lda.w   r9, _init
+       lda.w   r8, _fini
+       lda.w   r12, main
+
+       /* Ok, now run uClibc's main() -- should not return */
+       call    __uClibc_main
+
+       .align  2
+.L_GOT:
+       .long   .L_RGOT - _GLOBAL_OFFSET_TABLE_
+#else
+       lddpc   r9, __init_addr         /* app_init */
+       lddpc   r8, __fini_addr         /* app_fini */
+       lddpc   r12, __main_addr        /* main */
+
+       /* Ok, now run uClibc's main() -- should not return */
+       lddpc   pc, ___uClibc_main_addr
+
+       .align  2
+__init_addr:
+       .long   _init
+__fini_addr:
+       .long   _fini
+__main_addr:
+       .long   main
+___uClibc_main_addr:
+       .long   __uClibc_main
+#endif
+       .size   _start, . - _start
+
+       /*
+        * The LSB says we need this.
+        */
+       .section ".note.ABI-tag", "a"
+       .align  4
+       .long   2f - 1f         /* namesz */
+       .long   4f - 3f         /* descsz */
+       .long   1               /* type   */
+1:     .asciz  "GNU"           /* name */
+2:     .align  4
+3:     .long   0               /* Linux executable */
+       .long   2,6,0           /* Earliest compatible kernel */
+4:     .align  4

libc/sysdeps/linux/avr32/crti.S

@@ -0,0 +1,26 @@
+
+       .section .init
+       .align  2
+       .global _init
+       .type   _init, @function
+_init:
+       stm     --sp, r6, lr
+       lddpc   r6, 2f
+1:     rsub    r6, pc
+       rjmp    3f
+       .align  2
+2:     .long   1b - _GLOBAL_OFFSET_TABLE_
+3:
+
+       .section .fini
+       .align  2
+       .global _fini
+       .type   _fini, @function
+_fini:
+       stm     --sp, r6, lr
+       lddpc   r6, 2f
+1:     rsub    r6, pc
+       rjmp    3f
+       .align  2
+2:     .long   1b - _GLOBAL_OFFSET_TABLE_
+3:

libc/sysdeps/linux/avr32/crtn.S

@@ -0,0 +1,14 @@
+
+       .section .init
+       .align  2
+       .global _init
+       .type   _init, @function
+       ldm     sp++, r6, pc
+       .size   _init, . - _init
+
+       .section .fini
+       .align  2
+       .global _fini
+       .type   _fini, @function
+       ldm     sp++, r6, pc
+       .size   _fini, . - _fini

libc/sysdeps/linux/avr32/mmap.c

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+
+libc_hidden_proto(mmap)
+
+static _syscall6(__ptr_t, mmap2, __ptr_t, addr, size_t, len, int, prot,
+                int, flags, int, fd, __off_t, pgoff);
+
+__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
+{
+       unsigned long page_size = sysconf(_SC_PAGESIZE);
+       unsigned long pgoff;
+
+       if (offset & (page_size - 1)) {
+               __set_errno(EINVAL);
+               return MAP_FAILED;
+       }
+
+       pgoff = (unsigned long)offset >> (31 - __builtin_clz(page_size));
+
+       return mmap2(addr, len, prot, flags, fd, pgoff);
+}
+libc_hidden_def(mmap)

libc/sysdeps/linux/avr32/setjmp.S

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+
+       .text
+
+       .global __sigsetjmp
+       .type   __sigsetjmp,"function"
+
+       .align  1
+__sigsetjmp:
+       mustr   r8
+       stm     r12, r0,r1,r2,r3,r4,r5,r6,r7,r8,sp,lr
+
+       /*
+        * Make a tail call to __sigjmp_save; it takes the same args
+        * and is hidden so we don't need to mess around with the GOT.
+        */
+       rjmp    __sigjmp_save
+       .size   __sigsetjmp, . - __sigsetjmp
+
+libc_hidden_def(__sigsetjmp)

libc/sysdeps/linux/avr32/sigaction.c

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <bits/kernel_sigaction.h>
+
+#define SA_RESTORER    0x04000000
+extern void __default_rt_sa_restorer(void);
+
+libc_hidden_proto(memcpy)
+
+/*
+ * If act is not NULL, change the action for sig to *act.
+ * If oact is not NULL, put the old action for sig in *oact.
+ */
+int __libc_sigaction(int signum, const struct sigaction *act,
+                    struct sigaction *oldact)
+{
+       struct kernel_sigaction kact, koact;
+       int result;
+
+       if (act) {
+               kact.k_sa_handler = act->sa_handler;
+               memcpy(&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask));
+               kact.sa_flags = act->sa_flags;
+               if (kact.sa_flags & (SA_RESTORER | SA_ONSTACK))
+                       kact.sa_restorer = act->sa_restorer;
+               else
+                       kact.sa_restorer = __default_rt_sa_restorer;
+               kact.sa_flags |= SA_RESTORER;
+       }
+
+       result = __syscall_rt_sigaction(signum, act ? __ptrvalue(&kact) : NULL,
+                                       oldact ? __ptrvalue(&koact) : NULL,
+                                       _NSIG / 8);
+
+       if (oldact && result >= 0) {
+               oldact->sa_handler = koact.k_sa_handler;
+               memcpy(&oldact->sa_mask, &koact.sa_mask,
+                      sizeof(oldact->sa_mask));
+               oldact->sa_flags = koact.sa_flags;
+               oldact->sa_restorer = koact.sa_restorer;
+       }
+
+       return result;
+}
+
+#ifndef LIBC_SIGACTION
+libc_hidden_proto(sigaction)
+weak_alias(__libc_sigaction, sigaction)
+libc_hidden_weak(sigaction)
+#endif

libc/sysdeps/linux/avr32/sigrestorer.S

@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2004 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <sys/syscall.h>
+
+       .global __default_rt_sa_restorer
+       .type   __default_rt_sa_restorer,"function"
+       .align  1
+__default_rt_sa_restorer:
+       mov     r8, __NR_rt_sigreturn
+       scall

libc/sysdeps/linux/avr32/sys/elf.h

@@ -0,0 +1,26 @@
+/* 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_ELF_H
+#define _SYS_ELF_H     1
+
+#warning "This header is obsolete; use <sys/procfs.h> instead."
+
+#include <sys/procfs.h>
+
+#endif /* sys/elf.h */

libc/sysdeps/linux/avr32/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 */

libc/sysdeps/linux/avr32/sys/ucontext.h

@@ -0,0 +1,90 @@
+/* Copyright (C) 1998, 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.  */
+
+/* Linux/AVR32 ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H        1
+
+#include <features.h>
+#include <signal.h>
+#include <sys/procfs.h>
+#include <bits/sigcontext.h>
+
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG  16
+
+/* Container for all general registers.  */
+typedef elf_gregset_t gregset_t;
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0     R0
+  R1 = 1,
+#define R1     R1
+  R2 = 2,
+#define R2     R2
+  R3 = 3,
+#define R3     R3
+  R4 = 4,
+#define R4     R4
+  R5 = 5,
+#define R5     R5
+  R6 = 6,
+#define R6     R6
+  R7 = 7,
+#define R7     R7
+  R8 = 8,
+#define R8     R8
+  R9 = 9,
+#define R9     R9
+  R10 = 10,
+#define R10    R10
+  R11 = 11,
+#define R11    R11
+  R12 = 12,
+#define R12    R12
+  R13 = 13,
+#define R13    R13
+  R14 = 14,
+#define R14    R14
+  R15 = 15
+#define R15    R15
+};
+
+/* Structure to describe FPU registers.  */
+typedef elf_fpregset_t fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+       unsigned long   uc_flags;
+       struct ucontext *uc_link;
+       stack_t         uc_stack;
+       mcontext_t      uc_mcontext;
+       sigset_t        uc_sigmask;   /* mask last for extensibility */
+} ucontext_t;
+
+#endif /* sys/ucontext.h */

libc/sysdeps/linux/avr32/sys/user.h

@@ -0,0 +1,46 @@
+#ifndef _SYS_USER_H
+#define _SYS_USER_H
+
+struct user_fpregs
+{
+
+};
+
+struct user_regs
+{
+       unsigned long sr;
+       unsigned long pc;
+       unsigned long lr;
+       unsigned long sp;
+       unsigned long r12;
+       unsigned long r11;
+       unsigned long r10;
+       unsigned long r9;
+       unsigned long r8;
+       unsigned long r7;
+       unsigned long r6;
+       unsigned long r5;
+       unsigned long r4;
+       unsigned long r3;
+       unsigned long r2;
+       unsigned long r1;
+       unsigned long r0;
+       unsigned long r12_orig;
+};
+
+struct user
+{
+       struct user_regs        regs;           /* general registers */
+       size_t                  u_tsize;        /* text size (pages) */
+       size_t                  u_dsize;        /* data size (pages) */
+       size_t                  u_ssize;        /* stack size (pages) */
+       unsigned long           start_code;     /* text starting address */
+       unsigned long           start_data;     /* data starting address */
+       unsigned long           start_stack;    /* stack starting address */
+       long int                signal;         /* signal causing core dump */
+       struct user_regs *      u_ar0;          /* help gdb find registers */
+       unsigned long           magic;          /* identifies a core file */
+       char                    u_comm[32];     /* user command name */
+};
+
+#endif /* _SYS_USER_H */

libc/sysdeps/linux/avr32/syscall.S

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <features.h>
+
+       .text
+
+       /*
+        * long int syscall(long int sysno, ...)
+        */
+       .global syscall
+       .type   syscall, @function
+       .align  2
+syscall:
+       stm     --sp, r3,r5,r6,lr
+       sub     lr, sp, -16
+       mov     r8, r12
+       ldm     lr, r3,r5,r9-r12
+       scall
+       cp.w    r12, -4095
+       brlo    .Ldone
+
+#ifdef __PIC__
+       lddpc   r6, .Lgot
+.Lgotcalc:
+       rsub    r6, pc
+# ifdef __UCLIBC_HAS_THREADS__
+       rsub    r3, r12, 0
+       mcall   r6[__errno_location@got]
+       st.w    r12[0], r3
+# else
+       ld.w    r3, r6[errno@got]
+       neg     r12
+       st.w    r3[0], r12
+# endif
+#else
+# ifdef __UCLIBC_HAS_THREADS__
+       rsub    r3, r12, 0
+       mcall   .Lerrno_location
+       st.w    r12[0], r3
+# else
+       lddpc   r3, .Lerrno
+       neg     r12
+       st.w    r3[0], r12
+# endif
+#endif
+       mov     r12, -1
+
+.Ldone:
+       ldm     sp++, r3,r5,r6,pc
+
+       .align  2
+#ifdef __PIC__
+.Lgot:
+       .long   .Lgotcalc - _GLOBAL_OFFSET_TABLE_
+#else
+# ifdef __UCLIBC_HAS_THREADS__
+.Lerrno_location:
+       .long   __errno_location
+# else
+.Lerrno:
+       .long   errno
+# endif
+#endif
+
+
+       .size   syscall, . - syscall

libc/sysdeps/linux/avr32/vfork.S

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2005 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+/*
+ * Clone the process without copying the address space.  The
+ * calling process is suspended until the child either exits
+ * or calls execve.
+ *
+ * This all means that we cannot rely on the stack to store
+ * away registers, since they will be overwritten by the child
+ * as soon as it makes another function call (e.g. execve()).
+ * Fortunately, the Linux kernel preserves LR across system calls.
+ */
+
+#include <features.h>
+#include <sys/syscall.h>
+
+       .global __vfork
+       .type   __vfork,@function
+       .align  1
+__vfork:
+       mov     r8, __NR_vfork
+       scall
+       cp.w    r12, -4096
+       retls   r12
+
+       /* vfork failed, so we may use the stack freely */
+       pushm   r4-r7,lr
+#ifdef __PIC__
+       lddpc   r6, .L_GOT
+       rsub    r4, r12, 0
+.L_RGOT:
+       rsub    r6, pc
+       mcall   r6[__errno_location@got]
+#else
+       rsub    r4, r12, 0
+       mcall   .L__errno_location
+#endif
+       st.w    r12[0], r4
+       popm    r4-r7,pc,r12=-1
+
+       .align  2
+#ifdef __PIC__
+.L_GOT:
+       .long   .L_RGOT - _GLOBAL_OFFSET_TABLE_
+#else
+.L__errno_location:
+       .long   __errno_location
+#endif
+       .size   __vfork, . - __vfork
+
+weak_alias(__vfork,vfork)
+libc_hidden_weak(vfork)

libpthread/linuxthreads.old/sysdeps/avr32/pt-machine.h

@@ -0,0 +1,73 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ *
+ * Copyright (C) 2005-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H   1
+
+#include <features.h>
+
+static inline int
+_test_and_set (int *p, int v)
+{
+       int result;
+
+       __asm__ __volatile__(
+               "/* Inline test and set */\n"
+               "       xchg    %[old], %[mem], %[new]"
+               : [old] "=&r"(result)
+               : [mem] "r"(p), [new] "r"(v)
+               : "memory");
+
+       return result;
+}
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+/* Spinlock implementation; required.  */
+PT_EI long int
+testandset (int *spinlock)
+{
+       return _test_and_set(spinlock, 1);
+}
+
+
+/* Get some notion of the current stack.  Need not be exactly the top
+   of the stack, just something somewhere in the current frame.  */
+#define CURRENT_STACK_FRAME  stack_pointer
+register char * stack_pointer __asm__ ("sp");
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+PT_EI int
+__compare_and_swap(long int *p, long int oldval, long int newval)
+{
+       long int result;
+
+       __asm__ __volatile__(
+               "/* Inline compare and swap */\n"
+               "1:     ssrf    5\n"
+               "       ld.w    %[result], %[mem]\n"
+               "       eor     %[result], %[old]\n"
+               "       brne    2f\n"
+               "       stcond  %[mem], %[new]\n"
+               "       brne    1b\n"
+               "2:"
+               : [result] "=&r"(result), [mem] "=m"(*p)
+               : "m"(*p), [new] "r"(newval), [old] "r"(oldval)
+               : "cc", "memory");
+
+       return result == 0;
+}
+
+#endif /* pt-machine.h */

libpthread/linuxthreads/sysdeps/avr32/pt-machine.h

@@ -0,0 +1,73 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ *
+ * Copyright (C) 2005-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H   1
+
+#include <features.h>
+
+static inline int
+_test_and_set (int *p, int v) __THROW
+{
+       int result;
+
+       __asm__ __volatile__(
+               "/* Inline test and set */\n"
+               "       xchg    %[old], %[mem], %[new]"
+               : [old] "=&r"(result)
+               : [mem] "r"(p), [new] "r"(v)
+               : "memory");
+
+       return result;
+}
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+/* Spinlock implementation; required.  */
+PT_EI long int
+testandset (int *spinlock)
+{
+       return _test_and_set(spinlock, 1);
+}
+
+
+/* Get some notion of the current stack.  Need not be exactly the top
+   of the stack, just something somewhere in the current frame.  */
+#define CURRENT_STACK_FRAME  stack_pointer
+register char * stack_pointer __asm__ ("sp");
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+PT_EI int
+__compare_and_swap(long int *p, long int oldval, long int newval)
+{
+       int result;
+
+       __asm__ __volatile__(
+               "/* Inline compare and swap */\n"
+               "1:     ssrf    5\n"
+               "       ld.w    %[result], %[mem]\n"
+               "       eor     %[result], %[old]\n"
+               "       brne    2f\n"
+               "       stcond  %[mem], %[new]\n"
+               "       brne    1b\n"
+               "2:"
+               : [result] "=&r"(result), [mem] "=m"(*p)
+               : "m"(*p), [new] "r"(newval), [old] "r"(oldval)
+               : "cc", "memory");
+
+       return result == 0;
+}
+
+#endif /* pt-machine.h */

utils/ldd.c

@@ -44,6 +44,11 @@
 #define ELFCLASSM	ELFCLASS32
 #endif
 
+#if defined(__avr32__)
+#define MATCH_MACHINE(x) (x == EM_AVR32)
+#define ELFCLASSM      ELFCLASS32
+#endif
+
 #if defined(__s390__)
 #define MATCH_MACHINE(x) (x == EM_S390)
 #define ELFCLASSM	ELFCLASS32