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openwrt-xburst/toolchain/uClibc/patches-0.9.32/600-ubicom32-uClibc.patch
Mirko Vogt ff7b2bf558 merge over changes from OpenWrt trunk: 
toolchain/uClibc
        to have (preliminary) nptl support in uClibc
2010-08-10 10:19:22 +00:00

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135 KiB
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--- a/Rules.mak
+++ b/Rules.mak
@@ -477,6 +477,17 @@ ifeq ($(TARGET_ARCH),microblaze)
SYMBOL_PREFIX=_
endif
+ifeq ($(TARGET_ARCH),ubicom32)
+ OPTIMIZATION+=-fstrict-aliasing
+ CPU_CFLAGS-$(CONFIG_UBICOM32_V3)+=-march=ubicom32v3
+ CPU_CFLAGS-$(CONFIG_UBICOM32_V4)+=-march=ubicom32v4
+ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
+ CPU_CFLAGS-y:=-mfdpic
+ CPU_LDFLAGS-y += -Wl,-melf32ubicom32fdpic
+endif
+
+endif
+
ifeq ($(TARGET_ARCH),v850)
SYMBOL_PREFIX=_
endif
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -102,6 +102,9 @@ config TARGET_sh64
config TARGET_sparc
bool "sparc"
+config TARGET_ubicom32
+ bool "ubicom32"
+
config TARGET_v850
bool "v850 (BROKEN)"
@@ -203,6 +206,10 @@ if TARGET_sparc
source "extra/Configs/Config.sparc"
endif
+if TARGET_ubicom32
+source "extra/Configs/Config.ubicom32"
+endif
+
if TARGET_v850
source "extra/Configs/Config.v850"
endif
--- a/extra/Configs/Config.in.arch
+++ b/extra/Configs/Config.in.arch
@@ -149,7 +149,7 @@ config UCLIBC_HAS_SOFT_FLOAT
config DO_C99_MATH
bool "Enable full C99 math library support"
depends on UCLIBC_HAS_FLOATS
- default n
+ default y
help
If you want the uClibc math library to contain the full set C99
math library features, then answer Y. If you leave this set to
--- /dev/null
+++ b/extra/Configs/Config.ubicom32
@@ -0,0 +1,44 @@
+#
+# For a description of the syntax of this configuration file,
+# see extra/config/Kconfig-language.txt
+#
+
+config TARGET_ARCH
+ string
+ default "ubicom32"
+
+config FORCE_OPTIONS_FOR_ARCH
+ bool
+ default y
+ select ARCH_BIG_ENDIAN
+ select ARCH_HAS_NO_MMU
+
+choice
+ prompt "Target Processor Architecture"
+ default CONFIG_UC_UBICOM32_V3
+ help
+ This selects the instruction set architecture of your Ubicom32 CPU. This
+ information is used for optimizing purposes. To build a library that
+ will run on any Ubicom32 CPU, you can specify "v3" here.
+ If you pick anything other than "v3," there is no
+ guarantee that uClibc will even run on anything other than the
+ selected processor type.
+
+ You should probably select the Ubicom32 ISA that best matches the
+ CPU you will be using on your device. uClibc will be tuned
+ for that architecture.
+
+ If you don't know what to do, choose "v3"
+
+config CONFIG_UC_UBICOM32_V3
+ bool "ISA v3"
+
+config CONFIG_UC_UBICOM32_V4
+ bool "ISA v4"
+endchoice
+
+config ARCH_CFLAGS
+ string
+
+config CROSS
+ string
--- a/include/elf.h
+++ b/include/elf.h
@@ -337,6 +337,8 @@ typedef struct
#define EM_XSTORMY16 0xad45
+#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */
+
/* FRV magic number - no EABI available??. */
#define EM_CYGNUS_FRV 0x5441
@@ -3063,6 +3065,55 @@ typedef Elf32_Addr Elf32_Conflict;
/* Keep this the last entry. */
#define R_XTENSA_NUM 50
+/* Ubicom32 ELF relocation types */
+#define R_UBICOM32_NONE 0
+#define R_UBICOM32_16 1
+#define R_UBICOM32_32 2
+#define R_UBICOM32_LO16 3
+#define R_UBICOM32_HI16 4
+#define R_UBICOM32_21_PCREL 5
+#define R_UBICOM32_24_PCREL 6
+#define R_UBICOM32_HI24 7
+#define R_UBICOM32_LO7_S 8
+#define R_UBICOM32_LO7_2_S 9
+#define R_UBICOM32_LO7_4_S 10
+#define R_UBICOM32_LO7_D 11
+#define R_UBICOM32_LO7_2_D 12
+#define R_UBICOM32_LO7_4_D 13
+#define R_UBICOM32_32_HARVARD 14
+#define R_UBICOM32_LO7_CALLI 15
+#define R_UBICOM32_LO16_CALLI 16
+#define R_UBICOM32_GOT_HI24 17
+#define R_UBICOM32_GOT_LO7_S 18
+#define R_UBICOM32_GOT_LO7_2_S 19
+#define R_UBICOM32_GOT_LO7_4_S 20
+#define R_UBICOM32_GOT_LO7_D 21
+#define R_UBICOM32_GOT_LO7_2_D 22
+#define R_UBICOM32_GOT_LO7_4_D 23
+#define R_UBICOM32_FUNCDESC_GOT_HI24 24
+#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
+#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
+#define R_UBICOM32_GOT_LO7_CALLI 31
+#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
+#define R_UBICOM32_FUNCDESC_VALUE 33
+#define R_UBICOM32_FUNCDESC 34
+#define R_UBICOM32_GOTOFFSET_LO 35
+#define R_UBICOM32_GOTOFFSET_HI 36
+#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
+#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
+#define R_UBICOM32_GNU_VTINHERIT 200
+#define R_UBICOM32_GNU_VTENTRY 201
+
+/* Ubicom32 Flags. */
+#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
+#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
+#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
+#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
+
#ifdef __cplusplus
}
#endif
--- a/include/features.h
+++ b/include/features.h
@@ -445,4 +445,10 @@ uClibc was built without large file supp
# include <libc-internal.h>
#endif
+#ifndef libc_hidden_proto
+#define libc_hidden_proto(name, attrs...)
+#endif
+#ifndef libm_hidden_proto
+#define libm_hidden_proto(name, attrs...)
+#endif
#endif /* features.h */
--- a/ldso/ldso/dl-startup.c
+++ b/ldso/ldso/dl-startup.c
@@ -164,10 +164,13 @@ DL_START(unsigned long args)
aux_dat += 2;
}
+#if !defined __FDPIC__
/* locate the ELF header. We need this done as soon as possible
* (esp since SEND_STDERR() needs this on some platforms... */
if (!auxvt[AT_BASE].a_un.a_val)
auxvt[AT_BASE].a_un.a_val = elf_machine_load_address();
+#endif
+
DL_INIT_LOADADDR_BOOT(load_addr, auxvt[AT_BASE].a_un.a_val);
header = (ElfW(Ehdr) *) auxvt[AT_BASE].a_un.a_val;
--- a/ldso/ldso/ldso.c
+++ b/ldso/ldso/ldso.c
@@ -325,10 +325,12 @@ void _dl_get_ready_to_run(struct elf_res
_dl_progname = argv[0];
}
+#if 0 // blackfin does this, we do to avoid die during reloc
if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) {
_dl_dprintf(_dl_debug_file, "Standalone execution is not supported yet\n");
_dl_exit(1);
}
+#endif
/* Start to build the tables of the modules that are required for
* this beast to run. We start with the basic executable, and then
--- /dev/null
+++ b/ldso/ldso/ubicom32/dl-debug.h
@@ -0,0 +1,72 @@
+/* vi: set sw=4 ts=4: */
+/* Ubicom32 ELF shared library loader suppport
+ *
+ * Copyright (c) 2009 Ubicom Inc.
+ * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
+ * David Engel, Hongjiu Lu and Mitch D'Souza
+ * Copyright (C) 2001-2004 Erik Andersen
+ *
+ * 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_UBICOM32_NONE", /* 0 */
+ "R_UBICOM32_16",
+ "R_UBICOM32_32",
+ "R_UBICOM32_LO16",
+ "R_UBICOM32_HI16",
+ "R_UBICOM32_21_PCREL", /* 5 */
+ "R_UBICOM32_24_PCREL",
+ "R_UBICOM32_HI24",
+ "R_UBICOM32_LO7_S",
+ "R_UBICOM32_LO7_2_S",
+ "R_UBICOM32_LO7_4_S", /* 10 */
+ "R_UBICOM32_LO7_D",
+ "R_UBICOM32_LO7_2_D",
+ "R_UBICOM32_LO7_4_D",
+ "R_UBICOM32_32_HARVARD",
+ "R_UBICOM32_LO7_CALLI", /* 15 */
+ "R_UBICOM32_LO16_CALLI",
+ "R_UBICOM32_GOT_HI24",
+ "R_UBICOM32_GOT_LO7_S",
+ "R_UBICOM32_GOT_LO7_2_S"
+ "R_UBICOM32_GOT_LO7_4_S", /* 20 */
+ "R_UBICOM32_GOT_LO7_D",
+ "R_UBICOM32_GOT_LO7_2_D",
+ "R_UBICOM32_GOT_LO7_4_D",
+ "R_UBICOM32_FUNCDESC_GOT_HI24 24",
+ "R_UBICOM32_FUNCDESC_GOT_LO7_S", /* 25 */
+ "R_UBICOM32_FUNCDESC_GOT_LO7_2_S",
+ "R_UBICOM32_FUNCDESC_GOT_LO7_4_S",
+ "R_UBICOM32_FUNCDESC_GOT_LO7_D",
+ "R_UBICOM32_FUNCDESC_GOT_LO7_2_D",
+ "R_UBICOM32_FUNCDESC_GOT_LO7_4_D", /* 30 */
+ "R_UBICOM32_GOT_LO7_CALLI",
+ "R_UBICOM32_FUNCDESC_VALUE",
+ "R_UBICOM32_FUNCDESC",
+#if 1
+ [200] "R_UBICOM32_GNU_VTINHERIT" , "R_UBICOM32_GNU_VTENTRY"
+#endif
+};
--- /dev/null
+++ b/ldso/ldso/ubicom32/dl-inlines.h
@@ -0,0 +1,582 @@
+ /* Copyright (C) 2003, 2004 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+//#include <bfin_sram.h>
+#define SRAM_TEST(x) 0
+#ifndef _dl_assert
+# define _dl_assert(expr)
+#endif
+
+/* Initialize a DL_LOADADDR_TYPE given a got pointer and a complete
+ load map. */
+static __always_inline void
+__dl_init_loadaddr_map (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Addr dl_boot_got_pointer,
+ struct elf32_fdpic_loadmap *map)
+{
+ if (map->version != 0)
+ {
+ SEND_EARLY_STDERR ("Invalid loadmap version number\n");
+ _dl_exit(-1);
+ }
+ if (map->nsegs == 0)
+ {
+ SEND_EARLY_STDERR ("Invalid segment count in loadmap\n");
+ _dl_exit(-1);
+ }
+ loadaddr->got_value = (void*)dl_boot_got_pointer;
+ loadaddr->map = map;
+}
+
+/* Figure out how many LOAD segments there are in the given headers,
+ and allocate a block for the load map big enough for them.
+ got_value will be properly initialized later on, with INIT_GOT. */
+static __always_inline int
+__dl_init_loadaddr (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Phdr *ppnt,
+ int pcnt)
+{
+ int count = 0, i;
+ size_t size;
+
+ for (i = 0; i < pcnt; i++)
+ if (ppnt[i].p_type == PT_LOAD)
+ count++;
+
+ loadaddr->got_value = 0;
+
+ size = sizeof (struct elf32_fdpic_loadmap)
+ + sizeof (struct elf32_fdpic_loadseg) * count;
+ loadaddr->map = _dl_malloc (size);
+ if (! loadaddr->map)
+ _dl_exit (-1);
+
+ loadaddr->map->version = 0;
+ loadaddr->map->nsegs = 0;
+
+ return count;
+}
+
+#if defined (__SUPPORT_LD_DEBUG__)
+extern char *_dl_debug;
+extern int _dl_debug_file;
+#endif
+
+/* Incrementally initialize a load map. */
+static __always_inline void
+__dl_init_loadaddr_hdr (struct elf32_fdpic_loadaddr loadaddr, void *addr,
+ Elf32_Phdr *phdr, int maxsegs)
+{
+ struct elf32_fdpic_loadseg *segdata;
+
+ if (loadaddr.map->nsegs == maxsegs)
+ _dl_exit (-1);
+
+ segdata = &loadaddr.map->segs[loadaddr.map->nsegs++];
+ segdata->addr = (Elf32_Addr) addr;
+ segdata->p_vaddr = phdr->p_vaddr;
+ segdata->p_memsz = phdr->p_memsz;
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ {
+ if (_dl_debug)
+ _dl_dprintf(_dl_debug_file, "%i: mapped %x at %x, size %x\n",
+ loadaddr.map->nsegs-1,
+ segdata->p_vaddr, segdata->addr, segdata->p_memsz);
+ }
+#endif
+}
+
+static __always_inline void __dl_loadaddr_unmap
+(struct elf32_fdpic_loadaddr loadaddr, struct funcdesc_ht *funcdesc_ht);
+
+/* Figure out whether the given address is in one of the mapped
+ segments. */
+static __always_inline int
+__dl_addr_in_loadaddr (void *p, struct elf32_fdpic_loadaddr loadaddr)
+{
+ struct elf32_fdpic_loadmap *map = loadaddr.map;
+ int c;
+
+ for (c = 0; c < map->nsegs; c++)
+ if ((void*)map->segs[c].addr <= p
+ && (char*)p < (char*)map->segs[c].addr + map->segs[c].p_memsz)
+ return 1;
+
+ return 0;
+}
+
+static __always_inline void * _dl_funcdesc_for (void *entry_point, void *got_value);
+
+/* The hashcode handling code below is heavily inspired in libiberty's
+ hashtab code, but with most adaptation points and support for
+ deleting elements removed.
+
+ Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Contributed by Vladimir Makarov (vmakarov@cygnus.com). */
+
+static __always_inline unsigned long
+higher_prime_number (unsigned long n)
+{
+ /* These are primes that are near, but slightly smaller than, a
+ power of two. */
+ static const unsigned long primes[] = {
+ (unsigned long) 7,
+ (unsigned long) 13,
+ (unsigned long) 31,
+ (unsigned long) 61,
+ (unsigned long) 127,
+ (unsigned long) 251,
+ (unsigned long) 509,
+ (unsigned long) 1021,
+ (unsigned long) 2039,
+ (unsigned long) 4093,
+ (unsigned long) 8191,
+ (unsigned long) 16381,
+ (unsigned long) 32749,
+ (unsigned long) 65521,
+ (unsigned long) 131071,
+ (unsigned long) 262139,
+ (unsigned long) 524287,
+ (unsigned long) 1048573,
+ (unsigned long) 2097143,
+ (unsigned long) 4194301,
+ (unsigned long) 8388593,
+ (unsigned long) 16777213,
+ (unsigned long) 33554393,
+ (unsigned long) 67108859,
+ (unsigned long) 134217689,
+ (unsigned long) 268435399,
+ (unsigned long) 536870909,
+ (unsigned long) 1073741789,
+ (unsigned long) 2147483647,
+ /* 4294967291L */
+ ((unsigned long) 2147483647) + ((unsigned long) 2147483644),
+ };
+
+ const unsigned long *low = &primes[0];
+ const unsigned long *high = &primes[sizeof(primes) / sizeof(primes[0])];
+
+ while (low != high)
+ {
+ const unsigned long *mid = low + (high - low) / 2;
+ if (n > *mid)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+#if 0
+ /* If we've run out of primes, abort. */
+ if (n > *low)
+ {
+ fprintf (stderr, "Cannot find prime bigger than %lu\n", n);
+ abort ();
+ }
+#endif
+
+ return *low;
+}
+
+struct funcdesc_ht
+{
+ /* Table itself. */
+ struct funcdesc_value **entries;
+
+ /* Current size (in entries) of the hash table */
+ size_t size;
+
+ /* Current number of elements. */
+ size_t n_elements;
+};
+
+static __always_inline int
+hash_pointer (const void *p)
+{
+ return (int) ((long)p >> 3);
+}
+
+static __always_inline struct funcdesc_ht *
+htab_create (void)
+{
+ struct funcdesc_ht *ht = _dl_malloc (sizeof (struct funcdesc_ht));
+
+ if (! ht)
+ return NULL;
+ ht->size = 3;
+ ht->entries = _dl_malloc (sizeof (struct funcdesc_ht_value *) * ht->size);
+ if (! ht->entries)
+ return NULL;
+
+ ht->n_elements = 0;
+
+ _dl_memset (ht->entries, 0, sizeof (struct funcdesc_ht_value *) * ht->size);
+
+ return ht;
+}
+
+/* This is only called from _dl_loadaddr_unmap, so it's safe to call
+ _dl_free(). See the discussion below. */
+static __always_inline void
+htab_delete (struct funcdesc_ht *htab)
+{
+ int i;
+
+ for (i = htab->size - 1; i >= 0; i--)
+ if (htab->entries[i])
+ _dl_free (htab->entries[i]);
+
+ _dl_free (htab->entries);
+ _dl_free (htab);
+}
+
+/* Similar to htab_find_slot, but without several unwanted side effects:
+ - Does not call htab->eq_f when it finds an existing entry.
+ - Does not change the count of elements/searches/collisions in the
+ hash table.
+ This function also assumes there are no deleted entries in the table.
+ HASH is the hash value for the element to be inserted. */
+
+static __always_inline struct funcdesc_value **
+find_empty_slot_for_expand (struct funcdesc_ht *htab, int hash)
+{
+ size_t size = htab->size;
+ unsigned int index = hash % size;
+ struct funcdesc_value **slot = htab->entries + index;
+ int hash2;
+
+ if (! *slot)
+ return slot;
+
+ hash2 = 1 + hash % (size - 2);
+ for (;;)
+ {
+ index += hash2;
+ if (index >= size)
+ index -= size;
+
+ slot = htab->entries + index;
+ if (! *slot)
+ return slot;
+ }
+}
+
+/* The following function changes size of memory allocated for the
+ entries and repeatedly inserts the table elements. The occupancy
+ of the table after the call will be about 50%. Naturally the hash
+ table must already exist. Remember also that the place of the
+ table entries is changed. If memory allocation failures are allowed,
+ this function will return zero, indicating that the table could not be
+ expanded. If all goes well, it will return a non-zero value. */
+
+static __always_inline int
+htab_expand (struct funcdesc_ht *htab)
+{
+ struct funcdesc_value **oentries;
+ struct funcdesc_value **olimit;
+ struct funcdesc_value **p;
+ struct funcdesc_value **nentries;
+ size_t nsize;
+
+ oentries = htab->entries;
+ olimit = oentries + htab->size;
+
+ /* Resize only when table after removal of unused elements is either
+ too full or too empty. */
+ if (htab->n_elements * 2 > htab->size)
+ nsize = higher_prime_number (htab->n_elements * 2);
+ else
+ nsize = htab->size;
+
+ nentries = _dl_malloc (sizeof (struct funcdesc_value *) * nsize);
+ _dl_memset (nentries, 0, sizeof (struct funcdesc_value *) * nsize);
+ if (nentries == NULL)
+ return 0;
+ htab->entries = nentries;
+ htab->size = nsize;
+
+ p = oentries;
+ do
+ {
+ if (*p)
+ *find_empty_slot_for_expand (htab, hash_pointer ((*p)->entry_point))
+ = *p;
+
+ p++;
+ }
+ while (p < olimit);
+
+#if 0 /* We can't tell whether this was allocated by the _dl_malloc()
+ built into ld.so or malloc() in the main executable or libc,
+ and calling free() for something that wasn't malloc()ed could
+ do Very Bad Things (TM). Take the conservative approach
+ here, potentially wasting as much memory as actually used by
+ the hash table, even if multiple growths occur. That's not
+ so bad as to require some overengineered solution that would
+ enable us to keep track of how it was allocated. */
+ _dl_free (oentries);
+#endif
+ return 1;
+}
+
+/* This function searches for a hash table slot containing an entry
+ equal to the given element. To delete an entry, call this with
+ INSERT = 0, then call htab_clear_slot on the slot returned (possibly
+ after doing some checks). To insert an entry, call this with
+ INSERT = 1, then write the value you want into the returned slot.
+ When inserting an entry, NULL may be returned if memory allocation
+ fails. */
+
+static __always_inline struct funcdesc_value **
+htab_find_slot (struct funcdesc_ht *htab, void *ptr, int insert)
+{
+ unsigned int index;
+ int hash, hash2;
+ size_t size;
+ struct funcdesc_value **entry;
+
+ if (htab->size * 3 <= htab->n_elements * 4
+ && htab_expand (htab) == 0)
+ return NULL;
+
+ hash = hash_pointer (ptr);
+
+ size = htab->size;
+ index = hash % size;
+
+ entry = &htab->entries[index];
+ if (!*entry)
+ goto empty_entry;
+ else if ((*entry)->entry_point == ptr)
+ return entry;
+
+ hash2 = 1 + hash % (size - 2);
+ for (;;)
+ {
+ index += hash2;
+ if (index >= size)
+ index -= size;
+
+ entry = &htab->entries[index];
+ if (!*entry)
+ goto empty_entry;
+ else if ((*entry)->entry_point == ptr)
+ return entry;
+ }
+
+ empty_entry:
+ if (!insert)
+ return NULL;
+
+ htab->n_elements++;
+ return entry;
+}
+
+void *
+_dl_funcdesc_for (void *entry_point, void *got_value)
+{
+ struct elf_resolve *tpnt = ((void**)got_value)[2];
+ struct funcdesc_ht *ht = tpnt->funcdesc_ht;
+ struct funcdesc_value **entry;
+
+ _dl_assert (got_value == tpnt->loadaddr.got_value);
+
+ if (! ht)
+ {
+ ht = htab_create ();
+ if (! ht)
+ return (void*)-1;
+ tpnt->funcdesc_ht = ht;
+ }
+
+ entry = htab_find_slot (ht, entry_point, 1);
+ if (*entry)
+ {
+ _dl_assert ((*entry)->entry_point == entry_point);
+ return _dl_stabilize_funcdesc (*entry);
+ }
+
+ *entry = _dl_malloc (sizeof (struct funcdesc_value));
+ (*entry)->entry_point = entry_point;
+ (*entry)->got_value = got_value;
+
+ return _dl_stabilize_funcdesc (*entry);
+}
+
+static __always_inline void const *
+_dl_lookup_address (void const *address)
+{
+ struct elf_resolve *rpnt;
+ struct funcdesc_value const *fd;
+
+ /* Make sure we don't make assumptions about its alignment. */
+ __asm__ ("" : "+r" (address));
+
+ if ((Elf32_Addr)address & 7)
+ /* It's not a function descriptor. */
+ return address;
+
+ fd = (struct funcdesc_value const *)address;
+
+ for (rpnt = _dl_loaded_modules; rpnt; rpnt = rpnt->next)
+ {
+ if (! rpnt->funcdesc_ht)
+ continue;
+
+ if (fd->got_value != rpnt->loadaddr.got_value)
+ continue;
+
+ address = htab_find_slot (rpnt->funcdesc_ht, (void*)fd->entry_point, 0);
+
+ if (address && *(struct funcdesc_value *const*)address == fd)
+ {
+ address = (*(struct funcdesc_value *const*)address)->entry_point;
+ break;
+ }
+ else
+ address = fd;
+ }
+
+ return address;
+}
+
+void
+__dl_loadaddr_unmap (struct elf32_fdpic_loadaddr loadaddr,
+ struct funcdesc_ht *funcdesc_ht)
+{
+ int i;
+
+ for (i = 0; i < loadaddr.map->nsegs; i++)
+ {
+ struct elf32_fdpic_loadseg *segdata;
+ ssize_t offs;
+ segdata = loadaddr.map->segs + i;
+
+#if 0 /* SRAM */
+ /* FIXME:
+ A more cleaner way is to add type for struct elf32_fdpic_loadseg,
+ and release the memory according to the type.
+ Currently, we hardcode the memory address of L1 SRAM. */
+ if ((segdata->addr & 0xff800000) == 0xff800000)
+ {
+ _dl_sram_free ((void *)segdata->addr);
+ continue;
+ }
+#endif
+ offs = (segdata->p_vaddr & ADDR_ALIGN);
+ _dl_munmap ((void*)segdata->addr - offs,
+ segdata->p_memsz + offs);
+ }
+ /* _dl_unmap is only called for dlopen()ed libraries, for which
+ calling free() is safe, or before we've completed the initial
+ relocation, in which case calling free() is probably pointless,
+ but still safe. */
+ _dl_free (loadaddr.map);
+ if (funcdesc_ht)
+ htab_delete (funcdesc_ht);
+}
+
+#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
+ * code/data */
+// OLD BLACKFIN CODE
+static __always_inline int
+__dl_is_special_segment (Elf32_Ehdr *epnt,
+ Elf32_Phdr *ppnt)
+{
+ if (ppnt->p_type != PT_LOAD)
+ return 0;
+
+ if ((epnt->e_flags & EF_BFIN_CODE_IN_L1)
+ && !(ppnt->p_flags & PF_W)
+ && (ppnt->p_flags & PF_X))
+ return 1;
+
+ if ((epnt->e_flags & EF_BFIN_DATA_IN_L1)
+ && (ppnt->p_flags & PF_W)
+ && !(ppnt->p_flags & PF_X))
+ return 1;
+
+ /* 0xff700000, 0xff800000, 0xff900000 and 0xffa00000 are also used in
+ GNU ld and linux kernel. They need to be keep synchronized. */
+ if (ppnt->p_vaddr == 0xff700000
+ || ppnt->p_vaddr == 0xff800000
+ || ppnt->p_vaddr == 0xff900000
+ || ppnt->p_vaddr == 0xffa00000)
+ return 1;
+
+ return 0;
+}
+
+static __always_inline char *
+__dl_map_segment (Elf32_Ehdr *epnt,
+ Elf32_Phdr *ppnt,
+ int infile,
+ int flags)
+{
+ char *status, *tryaddr, *l1addr;
+ size_t size;
+
+
+ if (((epnt->e_flags & EF_BFIN_CODE_IN_L1) || ppnt->p_vaddr == 0xffa00000)
+ && !(ppnt->p_flags & PF_W)
+ && (ppnt->p_flags & PF_X)) {
+ status = (char *) _dl_mmap
+ (tryaddr = 0,
+ size = (ppnt->p_vaddr & ADDR_ALIGN) + ppnt->p_filesz,
+ LXFLAGS(ppnt->p_flags),
+ flags | MAP_EXECUTABLE | MAP_DENYWRITE,
+ infile, ppnt->p_offset & OFFS_ALIGN);
+ if (_dl_mmap_check_error(status)
+ || (tryaddr && tryaddr != status))
+ return NULL;
+ l1addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM);
+ if (l1addr != NULL)
+ _dl_dma_memcpy (l1addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz);
+ _dl_munmap (status, size);
+ if (l1addr == NULL)
+ _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
+ return l1addr;
+ }
+
+ if (((epnt->e_flags & EF_BFIN_DATA_IN_L1)
+ || ppnt->p_vaddr == 0xff700000
+ || ppnt->p_vaddr == 0xff800000
+ || ppnt->p_vaddr == 0xff900000)
+ && (ppnt->p_flags & PF_W)
+ && !(ppnt->p_flags & PF_X)) {
+ if (ppnt->p_vaddr == 0xff800000)
+ l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM);
+ else if (ppnt->p_vaddr == 0xff900000)
+ l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM);
+ else
+ l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM);
+ if (l1addr == NULL) {
+ _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
+ } else {
+ if (_DL_PREAD (infile, l1addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) {
+ _dl_sram_free (l1addr);
+ return NULL;
+ }
+ if (ppnt->p_filesz < ppnt->p_memsz)
+ _dl_memset (l1addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz);
+ }
+ return l1addr;
+ }
+ return 0;
+}
+#endif
--- /dev/null
+++ b/ldso/ldso/ubicom32/dl-startup.h
@@ -0,0 +1,232 @@
+/*
+ Copyright (C) 2009 Ubicom, Inc.
+ Copyright (C) 2003 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+/* Any assembly language/system dependent hacks needed to setup
+ * boot1.c so it will work as expected and cope with whatever platform
+ * specific wierdness is needed for this architecture.
+
+ * We override the default _dl_boot function, and replace it with a
+ * bit of asm. Then call the real _dl_boot function, which is now
+ * named _dl_boot2. */
+
+/* At program start-up, p0 contains a pointer to a
+ elf32_fdpic_loadmap that describes how the executable was loaded
+ into memory. p1 contains a pointer to the interpreter (our!)
+ loadmap, if there is an interpreter, or 0 if we're being run as an
+ executable. p2 holds a pointer to the interpreter's dynamic
+ section, if there is an interpreter, or to the executable's dynamic
+ section, otherwise. If the executable is not dynamic, gr18 is 0.
+
+ We rely on the fact that the linker adds a pointer to the
+ _GLOBAL_OFFSET_TABLE_ as the last ROFIXUP entry, and that
+ __self_reloc returns the relocated pointer to us, so that we can
+ use this value to initialize the PIC register. */
+
+
+/*
+ * _dl_boot is the entry point for ldso.
+ *
+ * The kernel leaves the main apps args on the stack (positive offsets), and
+ * communicates the load maps as follows
+ *
+ * - d1 is set to the exec_map_addr (struct elf32_fdpic_loadmap *), which is the
+ * current state of the mapped application.
+ *
+ * - d2 is set to interp_map_addr (struct elf32_fdpic_loadmap *), which is use
+ * by ldso to relocate itself.
+ *
+ * - d3 is dynamic_addr which as far as I can tell is the stack pointer.
+ *
+ * - a1 is set to zero and will later be initialised to ldso _dl_fini funcdesc
+ */
+
+__asm__(
+ " .text \n\t"
+ " .global _start \n\t"
+ " .type _start,@function \n\t"
+ "_start:\n\t"
+ /*
+ * Jump to .Lcall storing the location .Lcall in a5
+ */
+ " call a5, .Lcall \n\t"
+ ".Lcall: \n\t"
+ /*
+ * Reserve and Push inputs to stack.
+ * 32 byte stack layout as follows
+ * offset 0 exec_map_addr
+ * 4 interp_map_addr
+ * 8 dynamic_addr
+ * 12 not used
+ * 16 dl_main_funcdesc structure for _dl_boot
+ * (12 bytes sizeof funcdesc_value)
+ * 28 reserved
+ * 32 start of &original stack
+ */
+ " pdec sp, 32(sp); reserve stack space \n\t"
+ " move.4 0(sp), d1 ; exec_map_addr \n\t"
+ " move.4 4(sp), d2 ; interp_map_addr \n\t"
+ " move.4 8(sp), d3; dynamic_addr \n\t"
+
+ /*
+ * Load linker version of .Lcall in to d0
+ */
+ " moveai a3, #%hi(.Lcall) \n\t"
+ " lea.1 d0, %lo(.Lcall)(a3) \n\t"
+
+ /*
+ * Determine the offset from loaded .Lcall and put it in d0.
+ */
+ " sub.4 d0, a5, d0 \n\t"
+
+ /*
+ * Load linker version of __ROFIXUP_LIST__ and __ROFIXUP_END__ in to d1
+ * and d2.
+ */
+ " moveai a3, #%hi(__ROFIXUP_LIST__) \n\t"
+ " lea.1 d1, %lo(__ROFIXUP_LIST__)(a3) \n\t"
+ " moveai a3, #%hi(__ROFIXUP_END__) \n\t"
+ " lea.1 d2, %lo(__ROFIXUP_END__)(a3) \n\t"
+ /*
+ * Use offset determined above to find the loaded versions.
+ */
+ " add.4 d1, d1, d0 \n\t"
+ " add.4 d2, d2, d0 \n\t"
+
+ /*
+ * Load interp_map_addr into d0, if interp_map_addr is null use
+ * exec_map_addr.
+ */
+ " move.4 d0, 4(sp) ; load interp_map_addr \n\t"
+ " cmpi d0, #0 \n\t"
+ " jmpne.f 1f \n\t"
+ " move.4 d0, 0(sp) ; load exec_map_addr \n\t"
+
+ /*
+ * call __self_reloc(map, void ***p, void ***e)
+ * it returns the the GOT in d0.
+ */
+ "1: call a5, __self_reloc ; returns a0 in d0 \n\t"
+ " move.4 a0, d0 ; set GOT \n\t"
+ " move.4 a2, d0 ; save GOT \n\t"
+
+ /*
+ * now setup to call
+ * _dl_start (Elf32_Addr dl_boot_got_pointer, (d0)
+ * struct elf32_fdpic_loadmap *dl_boot_progmap, (d1)
+ * struct elf32_fdpic_loadmap *dl_boot_ldsomap, (d2)
+ * Elf32_Dyn *dl_boot_ldso_dyn_pointer, (d3)
+ * struct funcdesc_value *dl_main_funcdesc, (d4)
+ * unsigned long args (d5)
+ *
+ * NOTE: for dl_main_funcdesc we reserved space on the stack for this
+ * structure.
+ */
+ " move.4 d1, 0(sp) ; d1 = exec_map_addr \n\t"
+ " move.4 d2, 4(sp) ; d2 = interp_map_addr \n\t"
+ " move.4 d3, 8(sp) ; d3 = dynamic_addr \n\t"
+ " lea.1 d4, 16(sp) ; d4 = &dl_main_funcdesc \n\t"
+ " lea.1 d5, 32(sp) ; d5 = original stack ptr (args)\n\t"
+ " call a5, _dl_start \n\t"
+
+ /*
+ * Setup to call the main entry point, starting with passing our FINI
+ * ptr() to the user in a1 (remember we saved the got in a2)
+ */
+ " movei d15, #%got_funcdesc_lo(_dl_fini) \n\t"
+ " move.4 a1, (a2, d15) \n\t"
+
+ /*
+ * restore the load map from the kernel.
+ */
+ " move.4 d1, 0(sp) ; restore exec_map_addr \n\t"
+ " move.4 d2, 4(sp) ; restore interp_map_addr \n\t"
+ " move.4 d3, 8(sp) ; restore dynamic_addr \n\t"
+
+ /*
+ * _dl_start returned the main apps entry point in dl_main_funcdesc,
+ * load that information now.
+ */
+ " move.4 a5, 16(sp) ; a5 = dl_main_funcdesc.entry_point \n\t"
+ " move.4 a0, 20(sp) ; a0 = dl_main_funcdesc.got_value \n\t"
+ " lea.1 sp, 32(sp); restore original stack ptr (args) \n\t"
+ " calli a5, 0(a5) \n\t"
+ " bkpt -1; should never get here \n\t"
+ " .size _start, . - _start \n\t"
+);
+
+#undef DL_START
+#define DL_START(X) \
+static void __attribute__ ((used)) \
+_dl_start (Elf32_Addr dl_boot_got_pointer, \
+ struct elf32_fdpic_loadmap *dl_boot_progmap, \
+ struct elf32_fdpic_loadmap *dl_boot_ldsomap, \
+ Elf32_Dyn *dl_boot_ldso_dyn_pointer, \
+ struct funcdesc_value *dl_main_funcdesc, \
+ X)
+
+struct elf32_fdpic_loadmap;
+
+/*
+ * 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)
+
+/*
+ * Here is a macro to perform a relocation. This is only used when
+ * bootstrapping the dynamic loader. RELP is the relocation that we
+ * are performing, REL is the pointer to the address we are relocating.
+ * SYMBOL is the symbol involved in the relocation, and LOAD is the
+ * load address.
+ */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
+ switch(ELF32_R_TYPE((RELP)->r_info)){ \
+ case R_UBICOM32_32: \
+ *(REL) += (SYMBOL); \
+ break; \
+ case R_UBICOM32_FUNCDESC_VALUE: \
+ { \
+ struct funcdesc_value fv = { \
+ (void*)((SYMBOL) + *(REL)), \
+ (LOAD).got_value \
+ }; \
+ *(struct funcdesc_value volatile *)(REL) = fv; \
+ break; \
+ } \
+ default: \
+ _dl_exit(1); \
+ }
+
+/*
+ * Transfer control to the user's application, once the dynamic loader
+ * is done. We return the address of the function's entry point to
+ * _dl_boot, see boot1_arch.h.
+ */
+#define START() do { \
+ struct elf_resolve *exec_mod = _dl_loaded_modules; \
+ dl_main_funcdesc->entry_point = _dl_elf_main; \
+ while (exec_mod->libtype != elf_executable) \
+ exec_mod = exec_mod->next; \
+ dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \
+ return; \
+} while (0)
--- /dev/null
+++ b/ldso/ldso/ubicom32/dl-syscalls.h
@@ -0,0 +1,206 @@
+/* Copyright (C) 2003, 2004 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+/* 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);}
+#include <sys/mman.h>
+
+/* The code below is extracted from libc/sysdeps/linux/frv/_mmap.c */
+
+#if defined(DYNAMIC_LOADER_IN_SIMULATOR) && DYNAMIC_LOADER_IN_SIMULATOR
+#define __NR___syscall_mmap2 __NR_mmap2
+static __inline__ _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr,
+ size_t, len, int, prot, int, flags, int, fd, off_t, offset);
+
+/* Make sure we don't get another definition of _dl_mmap from the
+ machine-independent code. */
+#undef __NR_mmap
+#undef __NR_mmap2
+
+/* This is always 12, even on architectures where PAGE_SHIFT != 12. */
+# ifndef MMAP2_PAGE_SHIFT
+# define MMAP2_PAGE_SHIFT 12
+# endif
+
+#include <bits/uClibc_page.h> /* for PAGE_SIZE */
+static __always_inline void *_dl_memset(void*,int,size_t);
+static __always_inline ssize_t _dl_pread(int fd, void *buf, size_t count, off_t offset);
+
+static __ptr_t
+_dl_mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
+{
+ size_t plen = (len + PAGE_SIZE - 1) & -PAGE_SIZE;
+
+/* This is a hack to enable the dynamic loader to run within a
+ simulator that doesn't support mmap, with a number of very ugly
+ tricks. Also, it's not as useful as it sounds, since only dynamic
+ executables without DT_NEEDED dependencies can be run. AFAIK, they
+ can only be created with -pie. This trick suffices to enable the
+ dynamic loader to obtain a blank page that it maps early in the
+ bootstrap. */
+ if ((flags & MAP_FIXED) == 0)
+ {
+ void *_dl_mmap_base = 0;
+ __ptr_t *ret = 0;
+
+ if (! _dl_mmap_base)
+ {
+ void *stack;
+ __asm__ ("mov sp, %0" : "=r" (stack));
+ _dl_mmap_base = (void *)(((long)stack + 2 * PAGE_SIZE) & -PAGE_SIZE);
+ retry:
+ if (((void **)_dl_mmap_base)[0] == _dl_mmap_base
+ && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
+ && (((void **)_dl_mmap_base)[177]
+ == ((void **)_dl_mmap_base)[771]))
+ {
+ while (((void**)_dl_mmap_base)[177])
+ {
+ _dl_mmap_base = ((void**)_dl_mmap_base)[177];
+ if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
+ && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
+ && (((void **)_dl_mmap_base)[177]
+ == ((void**)_dl_mmap_base)[771])))
+ ((void(*)())0)();
+ }
+ }
+ else
+ {
+ int i;
+ for (i = 0; i < (int)PAGE_SIZE; i++)
+ if (*(char*)(_dl_mmap_base + i))
+ break;
+ if (i != PAGE_SIZE)
+ {
+ _dl_mmap_base = (void*)((long)_dl_mmap_base + PAGE_SIZE);
+ goto retry;
+ }
+ ((void**)_dl_mmap_base)[-1] =
+ ((void**)_dl_mmap_base)[0] =
+ ((void**)_dl_mmap_base)[1023] =
+ _dl_mmap_base;
+ }
+ }
+
+ if (_dl_mmap_base)
+ {
+ if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
+ && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
+ && (((void **)_dl_mmap_base)[177]
+ == ((void**)_dl_mmap_base)[771])))
+ ((void(*)())0)();
+ ret = (__ptr_t)((char*)_dl_mmap_base + PAGE_SIZE);
+ _dl_mmap_base =
+ ((void**)_dl_mmap_base)[177] =
+ ((void**)_dl_mmap_base)[771] =
+ (char*)_dl_mmap_base + plen + PAGE_SIZE;
+ ((void**)_dl_mmap_base)[0] =
+ ((void**)_dl_mmap_base)[1023] =
+ _dl_mmap_base;
+ }
+
+ if ((flags & MAP_ANONYMOUS) != 0)
+ {
+ _dl_memset (ret, 0, plen);
+ return ret;
+ }
+
+ flags |= MAP_FIXED;
+ addr = ret;
+ }
+ if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) {
+#if 0
+ __set_errno (EINVAL);
+#endif
+ return MAP_FAILED;
+ }
+ if ((flags & MAP_FIXED) != 0)
+ {
+ if (_dl_pread(fd, addr, len, offset) != (ssize_t)len)
+ return (void*)MAP_FAILED;
+ if (plen != len)
+ _dl_memset (addr + len, 0, plen - len);
+ return addr;
+ }
+ return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)));
+}
+#endif
+
+#ifdef __NR_pread64
+#ifdef DYNAMIC_LOADER_IN_SIMULATOR
+#include <unistd.h>
+
+#define __NR___syscall_lseek __NR_lseek
+static __always_inline unsigned long _dl_read(int fd, const void *buf, unsigned long count);
+
+static __always_inline _syscall3(__off_t, __syscall_lseek, int, fd, __off_t, offset,
+ int, whence);
+static __always_inline ssize_t
+_dl_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ __off_t orig = __syscall_lseek (fd, 0, SEEK_CUR);
+ ssize_t ret;
+
+ if (orig == -1)
+ return -1;
+
+ if (__syscall_lseek (fd, offset, SEEK_SET) != offset)
+ return -1;
+
+ ret = _dl_read (fd, buf, count);
+
+ if (__syscall_lseek (fd, orig, SEEK_SET) != orig)
+ ((void(*)())0)();
+
+ return ret;
+}
+#else
+#define __NR___syscall_pread __NR_pread64
+static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo);
+
+static __always_inline ssize_t
+_dl_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset)));
+}
+#endif
+#endif
+
+#ifdef __NR_sram_alloc
+#define __NR__dl_sram_alloc __NR_sram_alloc
+static __always_inline _syscall2(__ptr_t, _dl_sram_alloc,
+ size_t, len, unsigned long, flags);
+#endif
+
+#ifdef __NR_sram_free
+#define __NR__dl_sram_free __NR_sram_free
+static __always_inline _syscall1(int, _dl_sram_free, __ptr_t, addr);
+#endif
+
+#ifdef __NR_dma_memcpy
+#define __NR__dl_dma_memcpy __NR_dma_memcpy
+static __always_inline _syscall3(__ptr_t, _dl_dma_memcpy,
+ __ptr_t, dest, __ptr_t, src, size_t, len);
+#endif
--- /dev/null
+++ b/ldso/ldso/ubicom32/dl-sysdep.h
@@ -0,0 +1,243 @@
+ /* Copyright (C) 2003, 2004 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+ Based on ../i386/dl-sysdep.h
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+/*
+ * Various assembly language/system dependent hacks that are required
+ * so that we can minimize the amount of platform specific code.
+ */
+
+/*
+ * Define this if the system uses RELOCA.
+ */
+#undef ELF_USES_RELOCA
+
+/* JMPREL relocs are inside the DT_RELA table. */
+#define ELF_MACHINE_PLTREL_OVERLAP
+
+#define DL_NO_COPY_RELOCS
+
+#define HAVE_DL_INLINES_H
+
+/*
+ * Initialization sequence for a GOT. Copy the resolver function
+ * descriptor and the pointer to the elf_resolve/link_map data
+ * structure. Initialize the got_value in the module while at that.
+ */
+#define INIT_GOT(GOT_BASE,MODULE) \
+{ \
+ (MODULE)->loadaddr.got_value = (GOT_BASE); \
+ GOT_BASE[0] = ((unsigned long *)&_dl_linux_resolve)[0]; \
+ GOT_BASE[1] = ((unsigned long *)&_dl_linux_resolve)[1]; \
+ GOT_BASE[2] = (unsigned long) MODULE; \
+}
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+#define MAGIC1 EM_UBICOM32
+#undef MAGIC2
+
+/* Used for error messages */
+#define ELF_TARGET "UBICOM32"
+
+struct elf_resolve;
+
+struct funcdesc_value
+{
+ void *entry_point;
+ void *got_value;
+/*int relocation; not sure if this required, but it does exist */
+};
+
+extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden")));
+extern struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
+ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry);
+
+/* 4KiB page alignment. Should perhaps be made dynamic using
+ getpagesize(), based on AT_PAGESZ from auxvt? */
+#define PAGE_ALIGN 0xfffff000
+#define ADDR_ALIGN 0xfff
+#define OFFS_ALIGN 0x7ffff000
+
+struct funcdesc_ht;
+
+/*
+ * This asm does a quick relcation of string S (which is stored in the text
+ * section as thats all we can use
+ */
+#undef SEND_EARLY_STDERR
+#define SEND_EARLY_STDERR(S) \
+do { \
+ static const char __attribute__((section(".text"))) __s[] = (S); \
+ const char *__p, *__scratch; \
+ __asm__ ( \
+ " call a3, 1f; \n\t" \
+ "1: movei %0, #%%got_lo(1b) \n\t" \
+ " move.4 %0, (%3, %0) \n\t" \
+ " sub.4 %1, a3, %0; \n\t" \
+ " add.4 %1, %1, %2; \n\t" \
+ : "=&d" (__scratch), "=&d" (__p) \
+ : "d" (__s), "a" (dl_boot_got_pointer) \
+ : "a3", "a4", "d15"); \
+ SEND_STDERR (__p); \
+ { int __t; \
+ for (__t = 0; __t < 0x100000; __t++) __asm__ __volatile__ (""); } \
+} while (0)
+
+#define DL_LOADADDR_TYPE struct elf32_fdpic_loadaddr
+
+#define DL_RELOC_ADDR(LOADADDR, ADDR) \
+ ((ElfW(Addr))__reloc_pointer ((void*)(ADDR), (LOADADDR).map))
+
+#define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) \
+ ((void(*)(void)) _dl_funcdesc_for ((void*)(ADDR), (LOADADDR).got_value))
+
+#define _dl_stabilize_funcdesc(val) \
+ ({ __asm__ ("" : "+m" (*(val))); (val); })
+
+#define DL_CALL_FUNC_AT_ADDR(ADDR, LOADADDR, SIGNATURE, ...) \
+ ({ struct funcdesc_value fd = { (void*)(ADDR), (LOADADDR).got_value }; \
+ void (*pf)(void) = (void*) _dl_stabilize_funcdesc (&fd); \
+ (* SIGNATURE pf)(__VA_ARGS__); })
+
+#define DL_INIT_LOADADDR_BOOT(LOADADDR, BASEADDR) \
+ (__dl_init_loadaddr_map (&(LOADADDR), dl_boot_got_pointer, \
+ dl_boot_ldsomap ?: dl_boot_progmap))
+
+#define DL_INIT_LOADADDR_PROG(LOADADDR, BASEADDR) \
+ (__dl_init_loadaddr_map (&(LOADADDR), 0, dl_boot_progmap))
+
+#define DL_INIT_LOADADDR_EXTRA_DECLS \
+ int dl_init_loadaddr_load_count;
+#define DL_INIT_LOADADDR(LOADADDR, BASEADDR, PHDR, PHDRCNT) \
+ (dl_init_loadaddr_load_count = \
+ __dl_init_loadaddr (&(LOADADDR), (PHDR), (PHDRCNT)))
+#define DL_INIT_LOADADDR_HDR(LOADADDR, ADDR, PHDR) \
+ (__dl_init_loadaddr_hdr ((LOADADDR), (ADDR), (PHDR), \
+ dl_init_loadaddr_load_count))
+#define DL_LOADADDR_UNMAP(LOADADDR, LEN) \
+ (__dl_loadaddr_unmap ((LOADADDR), (NULL)))
+#define DL_LIB_UNMAP(LIB, LEN) \
+ (__dl_loadaddr_unmap ((LIB)->loadaddr, (LIB)->funcdesc_ht))
+#define DL_LOADADDR_BASE(LOADADDR) \
+ ((LOADADDR).got_value)
+
+/* This is called from dladdr(), such that we map a function
+ descriptor's address to the function's entry point before trying to
+ find in which library it's defined. */
+#define DL_LOOKUP_ADDRESS(ADDRESS) (_dl_lookup_address (ADDRESS))
+
+#define DL_ADDR_IN_LOADADDR(ADDR, TPNT, TFROM) \
+ (! (TFROM) && __dl_addr_in_loadaddr ((void*)(ADDR), (TPNT)->loadaddr))
+
+/*
+ * Compute the GOT address. On several platforms, we use assembly
+ * here. on FR-V FDPIC, there's no way to compute the GOT address,
+ * since the offset between text and data is not fixed, so we arrange
+ * for the assembly _dl_boot to pass this value as an argument to
+ * _dl_boot. */
+#define DL_BOOT_COMPUTE_GOT(got) ((got) = dl_boot_got_pointer)
+
+#define DL_BOOT_COMPUTE_DYN(dpnt, got, load_addr) \
+ ((dpnt) = dl_boot_ldso_dyn_pointer)
+
+/* We only support loading FDPIC independently-relocatable shared
+ libraries. It probably wouldn't be too hard to support loading
+ shared libraries that require relocation by the same amount, but we
+ don't know that they exist or would be useful, and the dynamic
+ loader code could leak the whole-library map unless we keeping a
+ bit more state for DL_LOADADDR_UNMAP and DL_LIB_UNMAP, so let's
+ keep things simple for now. */
+#define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \
+do \
+{ \
+ if (((epnt)->e_flags & EF_UBICOM32_FDPIC) && ! ((epnt)->e_flags & EF_UBICOM32_PIC)) \
+ (piclib) = 2; \
+ else \
+ { \
+ _dl_internal_error_number = LD_ERROR_NOTDYN; \
+ _dl_dprintf(2, "%s: '%s' is not an FDPIC shared library" \
+ "\n", (_dl_progname), (libname)); \
+ _dl_close(infile); \
+ return NULL; \
+ } \
+\
+} \
+while (0)
+
+/* We want want to apply all relocations in the interpreter during
+ bootstrap. Because of this, we have to skip the interpreter
+ relocations in _dl_parse_relocation_information(), see
+ elfinterp.c. */
+#define DL_SKIP_BOOTSTRAP_RELOC(SYMTAB, INDEX, STRTAB) 0
+
+#ifdef __NR_pread64
+#define _DL_PREAD(FD, BUF, SIZE, OFFSET) \
+ (_dl_pread((FD), (BUF), (SIZE), (OFFSET)))
+#endif
+
+/* We want to return to dlsym() a function descriptor if the symbol
+ turns out to be a function. */
+#define DL_FIND_HASH_VALUE(TPNT, TYPE_CLASS, SYM) \
+ (((TYPE_CLASS) & ELF_RTYPE_CLASS_DLSYM) \
+ && ELF32_ST_TYPE((SYM)->st_info) == STT_FUNC \
+ ? _dl_funcdesc_for ((void *)DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value), \
+ (TPNT)->loadaddr.got_value) \
+ : DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value))
+
+#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
+ * code/data */
+
+#define DL_IS_SPECIAL_SEGMENT(EPNT, PPNT) \
+ __dl_is_special_segment(EPNT, PPNT)
+#define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \
+ __dl_map_segment (EPNT, PPNT, INFILE, FLAGS)
+
+#endif
+
+
+#define DL_GET_READY_TO_RUN_EXTRA_PARMS \
+ , struct elf32_fdpic_loadmap *dl_boot_progmap, Elf32_Addr dl_boot_got_pointer
+#define DL_GET_READY_TO_RUN_EXTRA_ARGS \
+ , dl_boot_progmap, dl_boot_got_pointer
+
+
+#ifdef __USE_GNU
+# include <link.h>
+#else
+# define __USE_GNU
+# include <link.h>
+# undef __USE_GNU
+#endif
+
+#include <elf.h>
+static __inline__ void
+elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr,
+ Elf32_Word relative_count)
+{
+#if 0
+ Elf32_Rel * rpnt = (void *) rel_addr;
+ --rpnt;
+ do {
+ Elf32_Addr *const reloc_addr = (void *) (load_off + (++rpnt)->r_offset);
+
+ *reloc_addr = DL_RELOC_ADDR (load_off, *reloc_addr);
+ } while (--relative_count);
+#endif
+}
--- /dev/null
+++ b/ldso/ldso/ubicom32/elfinterp.c
@@ -0,0 +1,366 @@
+/* Blackfin ELF shared library loader suppport
+ Copyright (C) 2003, 2004 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+ Lots of code copied from ../i386/elfinterp.c, so:
+ Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
+ David Engel, Hongjiu Lu and Mitch D'Souza
+ Copyright (C) 2001-2002, Erik Andersen
+ All rights reserved.
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+#include <sys/cdefs.h> /* __attribute_used__ */
+
+/* Program to load an ELF binary on a linux system, and run it.
+ References to symbols in sharable libraries can be resolved by either
+ an ELF sharable library or a linux style of shared library. */
+
+/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
+ I ever taken any courses on internals. This program was developed using
+ information available through the book "UNIX SYSTEM V RELEASE 4,
+ Programmers guide: Ansi C and Programming Support Tools", which did
+ a more than adequate job of explaining everything required to get this
+ working. */
+extern int _dl_ubicom32_resolve_pending(void) __attribute__((__visibility__("hidden")));
+
+struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
+_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry)
+{
+ int reloc_type;
+ ELF_RELOC *this_reloc;
+ char *strtab;
+ ElfW(Sym) *symtab;
+ int symtab_index;
+ char *rel_addr;
+ struct elf_resolve *new_tpnt;
+ char *new_addr;
+ struct funcdesc_value funcval;
+ struct funcdesc_value volatile *got_entry;
+ char *symname;
+
+ rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
+
+ this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry);
+ reloc_type = ELF_R_TYPE(this_reloc->r_info);
+ symtab_index = ELF_R_SYM(this_reloc->r_info);
+
+ symtab = (Elf32_Sym *) tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
+ symname= strtab + symtab[symtab_index].st_name;
+
+ if (reloc_type != R_UBICOM32_FUNCDESC_VALUE) {
+ _dl_dprintf(2, "%s: Incorrect relocation type in jump relocations\n",
+ _dl_progname);
+ _dl_exit(1);
+ }
+
+ /* Address of GOT entry fix up */
+ got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset);
+
+ /* Get the address to be used to fill in the GOT entry. */
+ new_addr = _dl_lookup_hash(symname, tpnt->symbol_scope, NULL, 0, &new_tpnt);
+ if (!new_addr) {
+ new_addr = _dl_lookup_hash(symname, NULL, NULL, 0, &new_tpnt);
+ if (!new_addr) {
+ _dl_dprintf(2, "%s: can't resolve symbol '%s'\n",
+ _dl_progname, symname);
+ _dl_exit(1);
+ }
+ }
+
+ funcval.entry_point = new_addr;
+ funcval.got_value = new_tpnt->loadaddr.got_value;
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_bindings) {
+ _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
+ if (_dl_debug_detail)
+ _dl_dprintf(_dl_debug_file,
+ "\n\tpatched (%x,%x) ==> (%x,%x) @ %x\n",
+ got_entry->entry_point, got_entry->got_value,
+ funcval.entry_point, funcval.got_value,
+ got_entry);
+ }
+ if (1 || !_dl_debug_nofixups) {
+ got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
+ got_entry->got_value = funcval.got_value;
+ got_entry->entry_point = funcval.entry_point;
+ }
+#else
+ /*
+ * initially set the entry point to resolve pending before starting
+ * the update. This has the effect of putting all other requests in a
+ * holding pattern until the resolution is completed.
+ */
+ got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
+ got_entry->got_value = funcval.got_value;
+ got_entry->entry_point = funcval.entry_point;
+#endif
+
+ return got_entry;
+}
+
+static int
+_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
+ unsigned long rel_addr, unsigned long rel_size,
+ int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
+ ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab))
+{
+ unsigned int i;
+ char *strtab;
+ ElfW(Sym) *symtab;
+ ELF_RELOC *rpnt;
+ int symtab_index;
+
+ /* Now parse the relocation information */
+ rpnt = (ELF_RELOC *) rel_addr;
+ rel_size = rel_size / sizeof(ELF_RELOC);
+
+ symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
+
+ for (i = 0; i < rel_size; i++, rpnt++) {
+ int res;
+
+ symtab_index = ELF_R_SYM(rpnt->r_info);
+ debug_sym(symtab,strtab,symtab_index);
+ debug_reloc(symtab,strtab,rpnt);
+
+ res = reloc_fnc (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 = ELF_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 if (res >0) {
+ _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,
+ ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)
+{
+ int reloc_type;
+ int symtab_index;
+ char *symname;
+ unsigned long reloc_value = 0, *reloc_addr;
+ struct { unsigned long v; } __attribute__((__packed__))
+ *reloc_addr_packed;
+ unsigned long symbol_addr;
+ struct elf_resolve *symbol_tpnt;
+ struct funcdesc_value funcval;
+#if defined (__SUPPORT_LD_DEBUG__)
+ unsigned long old_val;
+#endif
+
+ reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
+ __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr));
+ reloc_type = ELF_R_TYPE(rpnt->r_info);
+ symtab_index = ELF_R_SYM(rpnt->r_info);
+ symbol_addr = 0;
+ symname = strtab + symtab[symtab_index].st_name;
+
+ if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) {
+ symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value);
+ symbol_tpnt = tpnt;
+ } else {
+
+ symbol_addr = (unsigned long)
+ _dl_lookup_hash(symname, scope, NULL, 0, &symbol_tpnt);
+
+ /*
+ * We want to allow undefined references to weak symbols - this might
+ * have been intentional. We should not be linking local symbols
+ * here, so all bases should be covered.
+ */
+
+ if (!symbol_addr && ELF_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) {
+ _dl_dprintf (2, "%s: can't resolve symbol '%s'\n",
+ _dl_progname, strtab + symtab[symtab_index].st_name);
+ _dl_exit (1);
+ }
+ }
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_reloc && _dl_debug_detail)
+ {
+ if ((long)reloc_addr_packed & 3)
+ old_val = reloc_addr_packed->v;
+ else
+ old_val = *reloc_addr;
+ }
+ else
+ old_val = 0;
+#endif
+ switch (reloc_type) {
+ case R_UBICOM32_NONE:
+ break;
+ case R_UBICOM32_32:
+ if ((long)reloc_addr_packed & 3)
+ reloc_value = reloc_addr_packed->v += symbol_addr;
+ else
+ reloc_value = *reloc_addr += symbol_addr;
+ break;
+ case R_UBICOM32_FUNCDESC_VALUE:
+ funcval.entry_point = (void*)symbol_addr;
+ /* The addend of FUNCDESC_VALUE
+ relocations referencing global
+ symbols must be ignored, because it
+ may hold the address of a lazy PLT
+ entry. */
+ if (ELF_ST_BIND(symtab[symtab_index].st_info) == STB_LOCAL)
+ funcval.entry_point += *reloc_addr;
+ reloc_value = (unsigned long)funcval.entry_point;
+ if (symbol_addr)
+ funcval.got_value
+ = symbol_tpnt->loadaddr.got_value;
+ else
+ funcval.got_value = 0;
+
+/// XXX this is my best guess as to what I should be doing, but I'm
+/// putting a break-point here so I can inspect the first time this is
+/// used.
+ __asm__ (
+ " move.4 4(%0), 4(%1) \n\t"
+ " move.4 0(%0), 0(%1) \n\t" /* Must to entry_point last */
+ :
+ : "a" (reloc_addr), "a" (&funcval)
+ : "memory" );
+ break;
+ case R_UBICOM32_FUNCDESC:
+ if ((long)reloc_addr_packed & 3)
+ reloc_value = reloc_addr_packed->v;
+ else
+ reloc_value = *reloc_addr;
+ if (symbol_addr)
+ reloc_value = (unsigned long)_dl_funcdesc_for
+ ((char *)symbol_addr + reloc_value,
+ symbol_tpnt->loadaddr.got_value);
+ else
+ reloc_value = 0;
+ if ((long)reloc_addr_packed & 3)
+ reloc_addr_packed->v = reloc_value;
+ else
+ *reloc_addr = reloc_value;
+ 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", old_val, reloc_value, reloc_addr);
+ switch (reloc_type) {
+ case R_UBICOM32_FUNCDESC_VALUE:
+ _dl_dprintf(_dl_debug_file, " got %x", ((struct funcdesc_value *)reloc_value)->got_value);
+ break;
+ case R_UBICOM32_FUNCDESC:
+ if (! reloc_value)
+ break;
+ _dl_dprintf(_dl_debug_file, " funcdesc (%x,%x)",
+ ((struct funcdesc_value *)reloc_value)->entry_point,
+ ((struct funcdesc_value *)reloc_value)->got_value);
+ break;
+ }
+ }
+#endif
+
+ return 0;
+}
+
+static int
+_dl_do_lazy_reloc (struct elf_resolve *tpnt,
+ struct dyn_elf *scope __attribute__((unused)),
+ ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)),
+ char *strtab __attribute__((unused)))
+{
+ int reloc_type;
+ struct funcdesc_value volatile *reloc_addr;
+ struct funcdesc_value funcval;
+#if defined (__SUPPORT_LD_DEBUG__)
+ unsigned long old_val;
+#endif
+
+ reloc_addr = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
+ reloc_type = ELF_R_TYPE(rpnt->r_info);
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ old_val = (unsigned long)reloc_addr->entry_point;
+#endif
+ switch (reloc_type) {
+ case R_UBICOM32_NONE:
+ break;
+ case R_UBICOM32_FUNCDESC_VALUE:
+ funcval = *reloc_addr;
+ funcval.entry_point = (void*)DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point);
+ funcval.got_value = tpnt->loadaddr.got_value;
+ *reloc_addr = funcval;
+ 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", old_val, reloc_addr->entry_point, reloc_addr);
+#endif
+ return 0;
+
+}
+
+void
+_dl_parse_lazy_relocation_information
+(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
+{
+ _dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc);
+}
+
+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);
+}
+
+#if 0
+/* We don't have copy relocs. */
+int
+_dl_parse_copy_information
+(struct dyn_elf *rpnt __attribute__((unused)),
+ unsigned long rel_addr __attribute__((unused)),
+ unsigned long rel_size __attribute__((unused)))
+{
+ return 0;
+}
+#endif
+#ifndef IS_IN_libdl
+# include "../../libc/sysdeps/linux/ubicom32/crtreloc.c"
+#endif
--- /dev/null
+++ b/ldso/ldso/ubicom32/resolve.S
@@ -0,0 +1,161 @@
+ /* Copyright (C) 2003 Red Hat, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+ Copyright (C) 2009 Ubicom Inc.
+ Ported to Ubicom32 by Ubicom Inc.
+
+This file is part of uClibc.
+
+uClibc 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.
+
+uClibc 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 Lesser General Public
+License along with uClibc; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+USA. */
+
+
+/*
+ * The function below is tail-called by resolver stubs when a lazily-bound *
+ * function is called. It must preserve all registers that could * be used to
+ * pass arguments to the actual function.
+ *
+ * On entry to the function d0-d13 contain parameters to the actual function of
+ * interest
+ *
+ * a5 contains the return address
+ * a0 is pointing to the GOT table for the original function
+ * (a0) _dl_linux_resolve
+ * 4(a0) GOT for _dl_linux_resolve
+ * 8(a0) is pointer to "structure elf_resolve" of the module where the call
+ * originated from
+ *
+ * a3 is pointing to the function descriptor in the GOT table, and 8(a3) the
+ * resolver lookup information.
+ *
+ * _dl_linux_resolve calls _dl_linux_resolver passing it pointer to
+ * struct elf_resolve and the relocation entry.
+ *
+ * _dl_linux_resolver() figures out where the jump symbol is _really_ supposed
+ * to have jumped to and returns that to us. Once we have that, we prepare to
+ * tail-call the actual function, clean up after ourselves, restoring the
+ * original arguments, then jump to the fixed up address.
+ */
+
+#if 0
+ /*
+ * Here is what the linker will use for the PLT.
+ */
+sample_PLT_functionX: /* (at entry a0 contains GOT for this library) */
+ movei d15, # -%lo(got_funcdescX) ; load offset for GOT
+ lea.4 a3, (a0, d15) ; a4 is now the function descriptor
+ move.4 a4, 0(a3) ; get entry_point
+ move.4 a0, 4(a3) ; set new GOT
+
+ /*
+ * jump to resovled function OR PLT_trampoline Nat had some code here
+ * that uses the stack instead of a3 to reduces hazards.
+ */
+ calli a4, 0(a4)
+
+
+sample_PLT_trampoline:
+ /*
+ * find the old got by undoing what was done above. An alternative
+ * could have been to ‘save’ the old got in say d14 but that would add 1
+ * instruction to every PLT and there is only 1 PLT trampoline per library.
+ */
+ ret (a0) ; jump to _dl_linux_resolve
+#endif
+
+ .text
+ .p2align 4
+
+ .hidden _dl_linux_resolve
+ .global _dl_linux_resolve
+ .type _dl_linux_resolve,@function
+_dl_linux_resolve:
+ /* Preserve arguments and return address */
+ move.4 -4(sp)++, d0
+ move.4 -4(sp)++, d1
+ move.4 -4(sp)++, d2
+ move.4 -4(sp)++, d3
+ move.4 -4(sp)++, d4
+ move.4 -4(sp)++, d5
+ move.4 -4(sp)++, d6
+ move.4 -4(sp)++, d7
+ move.4 -4(sp)++, d8
+ move.4 -4(sp)++, d9
+ move.4 -4(sp)++, d10
+ move.4 -4(sp)++, d11
+ move.4 -4(sp)++, d12
+ move.4 -4(sp)++, d13
+ move.4 -4(sp)++, a5
+
+ /* Prepare to call _dl_linux_resolver. */
+ move.4 d0, 8(a0) ; reference to elf_resolve
+ /* Not aligned for space reasons. */
+ move.4 d1, mac_hi ; reference to GOT table entry which
+ ; contains the relocation information.
+
+ move.4 a0, 4(a0) ; switch to GOT for _dl_linux_resolve
+ call a5, _dl_linux_resolver;
+
+ /* Move aside return value that contains the FUNCDESC_VALUE. */
+ ;P3 = R0;
+ move.4 a3, d0;
+
+ /* Restore arguments. */
+ move.4 a5, (sp)4++
+ move.4 d13, (sp)4++
+ move.4 d12, (sp)4++
+ move.4 d11, (sp)4++
+ move.4 d10, (sp)4++
+ move.4 d9, (sp)4++
+ move.4 d8, (sp)4++
+ move.4 d7, (sp)4++
+ move.4 d6, (sp)4++
+ move.4 d5, (sp)4++
+ move.4 d4, (sp)4++
+ move.4 d3, (sp)4++
+ move.4 d2, (sp)4++
+ move.4 d1, (sp)4++
+ move.4 d0, (sp)4++
+
+ /* Now jump to the actual function. */
+ /* a3 contains func_desc resolution */
+ move.4 a4, 0(a3) ; address of function X
+ move.4 a0, 4(a3) ; switch to GOT for function X
+ calli a4, 0(a4) ; call through a4, a5 remains
+
+ .size _dl_linux_resolve, . - _dl_linux_resolve
+
+ .hidden _dl_ubicom32_resolve_pending
+ .global _dl_ubicom32_resolve_pending
+ .type _dl_ubicom32_resolve_pending,@function
+
+_dl_ubicom32_resolve_pending:
+ /*
+ * A special function that is used to ensure thread saftly when the fd
+ * for a particular resolution is being updated.
+ *
+ * At entry, a3 must point to the FD. While the FD is being updated the
+ * entry_point will continue to point to _dl_ubicom32_resolve_pending so
+ * we will effectively spin until the resolver update is complete.
+ */
+
+ move.4 a4, 0(a3) ; get entry_point
+ move.4 a0, 4(a3) ; set new GOT
+
+ /*
+ * jump to resovled function or back to _dl_ubicom32_resolve_pending.
+ */
+ calli a4, 0(a4)
+ .size _dl_ubicom32_resolve_pending, . - _dl_ubicom32_resolve_pending
--- a/libc/misc/Makefile.in
+++ b/libc/misc/Makefile.in
@@ -12,7 +12,9 @@ include $(top_srcdir)libc/misc/assert/Ma
include $(top_srcdir)libc/misc/ctype/Makefile.in
include $(top_srcdir)libc/misc/dirent/Makefile.in
include $(top_srcdir)libc/misc/error/Makefile.in
+ifneq ($(ARCH_HAS_NO_LDSO),y)
include $(top_srcdir)libc/misc/elf/Makefile.in
+endif
include $(top_srcdir)libc/misc/file/Makefile.in
include $(top_srcdir)libc/misc/fnmatch/Makefile.in
include $(top_srcdir)libc/misc/ftw/Makefile.in
--- a/libc/misc/elf/dl-iterate-phdr.c
+++ b/libc/misc/elf/dl-iterate-phdr.c
@@ -14,7 +14,7 @@
#include <link.h>
#include <ldso.h>
-
+#include <memory.h>
/* we want this in libc but nowhere else */
#ifdef __USE_GNU
--- a/libc/stdlib/malloc/malloc.c
+++ b/libc/stdlib/malloc/malloc.c
@@ -23,7 +23,7 @@
/* The malloc heap. We provide a bit of initial static space so that
programs can do a little mallocing without mmaping in more space. */
-HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 256);
+HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 32768);
struct heap_free_area *__malloc_heap = HEAP_INIT_WITH_FA (initial_fa);
#ifdef HEAP_USE_LOCKING
malloc_mutex_t __malloc_heap_lock = PTHREAD_MUTEX_INITIALIZER;
--- /dev/null
+++ b/libc/string/ubicom32/Makefile
@@ -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.
+#
+
+top_srcdir:=../../../
+top_builddir:=../../../
+all: objs
+include $(top_builddir)Rules.mak
+include ../Makefile.in
+include $(top_srcdir)Makerules
--- /dev/null
+++ b/libc/string/ubicom32/memcpy.c
@@ -0,0 +1,152 @@
+/* Copy memory to memory until the specified number of bytes
+ has been copied. Overlap is NOT handled correctly.
+ Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <string.h>
+
+typedef unsigned long addr_t;
+
+libc_hidden_proto(memcpy)
+
+void *memcpy (void *dest, const void *src, size_t n)
+{
+ void *dest_ret = dest;
+ void *aligned_start;
+
+ if (likely((((addr_t)dest ^ (addr_t)src) & 3) == 0) && likely(n > 6)) {
+ size_t m;
+ n -= (4 - (addr_t)dest) & 0x03;
+ m = n >> 2;
+ __asm__ volatile (
+ " call %4, 99f \n\t" // load %4 with address of 99
+ "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
+ " add.4 %4, %4, d15 \n\t" // add difference
+
+ " sub.4 d15, #0, %2 \n\t" // set up for jump table
+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
+ " lea.4 %4, (%4,d15) \n\t"
+
+ " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3)
+ " jmpne.w.f 100f \n\t"
+ " calli %4, 0(%4) \n\t" // 4-byte alignment
+
+ "100: cmpi d15, #2 \n\t"
+ " jmpne.s.f 101f \n\t"
+ " move.2 (%0)2++, (%1)2++ \n\t"
+ " calli %4, 0(%4) \n\t" // 2-byte alignment
+
+ "101: move.1 (%0)1++, (%1)1++ \n\t"
+ " jmpgt.s.f 102f \n\t" // 3-byte alignment
+ " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment
+ "102: calli %4, 0(%4) \n\t"
+
+ "200: cmpi %3, #2 \n\t"
+ " jmplt.s.f 201f \n\t"
+ " move.2 (%0)2++, (%1)2++ \n\t"
+ " jmpeq.s.t 2f \n\t"
+ "201: move.1 (%0)1++, (%1)1++ \n\t"
+ " jmpt.w.t 2f \n\t"
+
+ "1: .rept 25 \n\t"
+ " movea (%0)4++, (%1)4++ \n\t"
+ " .endr \n\t"
+ " .rept 7 \n\t"
+ " move.4 (%0)4++, (%1)4++ \n\t"
+ " .endr \n\t"
+ " add.4 %2, #-32, %2 \n\t"
+ " jmpgt.w.f 1b \n\t"
+
+ " and.4 %3, #3, %3 \n\t" // check n
+ " jmpne.w.f 200b \n\t"
+ "2: \n\t"
+ : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
+ :
+ : "d15", "memory", "cc"
+ );
+
+ return dest_ret;
+ }
+
+ if (likely((((addr_t)dest ^ (addr_t)src) & 1) == 0) && likely(n > 2)) {
+ size_t m;
+ n -= (addr_t)dest & 0x01;
+ m = n >> 1;
+ __asm__ volatile (
+ " call %4, 99f \n\t" // load %4 with address of 99
+ "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
+ " add.4 %4, %4, d15 \n\t" // add difference
+
+ " sub.4 d15, #0, %2 \n\t" // set up for jump table
+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
+ " lea.4 %4, (%4,d15) \n\t"
+
+ " btst %0, #0 \n\t" // check bit 0
+ " jmpne.w.f 100f \n\t"
+ " calli %4, 0(%4) \n\t" // 4-byte alignment
+
+ "100: move.1 (%0)1++, (%1)1++ \n\t"
+ " calli %4, 0(%4) \n\t"
+
+ "200: move.1 (%0)1++, (%1)1++ \n\t"
+ " jmpt.w.t 2f \n\t"
+
+ "1: .rept 32 \n\t"
+ " move.2 (%0)2++, (%1)2++ \n\t"
+ " .endr \n\t"
+ " add.4 %2, #-32, %2 \n\t"
+ " jmpgt.w.f 1b \n\t"
+
+ " and.4 %3, #1, %3 \n\t" // check n
+ " jmpne.w.f 200b \n\t"
+ "2: \n\t"
+
+ : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
+ :
+ : "d15", "memory", "cc"
+ );
+ return dest_ret;
+ }
+
+ __asm__ volatile (
+ " call %3, 99f \n\t" // load %3 with address of 99
+ "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
+ " add.4 %3, %3, d15 \n\t" // add difference
+
+ " sub.4 d15, #0, %2 \n\t"
+ " jmpeq.w.f 2f \n\t"
+ " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1)
+ " lea.4 %3, (%3,d15) \n\t"
+ " calli %3, 0(%3) \n\t"
+
+ "1: .rept 16 \n\t"
+ " move.1 (%0)1++, (%1)1++ \n\t"
+ " .endr \n\t"
+ " add.4 %2, #-16, %2 \n\t"
+ " jmpgt.w.f 1b \n\t"
+ "2: \n\t"
+
+ : "+a"(dest), "+a"(src), "+d"(n), "=a"(aligned_start)
+ :
+ : "d15", "memory", "cc"
+ );
+
+ return dest_ret;
+}
+libc_hidden_def(memcpy)
--- /dev/null
+++ b/libc/string/ubicom32/memset.c
@@ -0,0 +1,107 @@
+/* Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <string.h>
+
+typedef unsigned long addr_t;
+
+libc_hidden_proto(memset)
+void *memset (void *s, int c, size_t n)
+{
+ void *s_ret = s;
+ void *aligned_start;
+ if (likely(n > 6)) {
+ size_t m;
+ n -= (4 - (addr_t)s) & 0x03;
+ m = n >> 2;
+ __asm__ volatile (
+ " call %4, 99f \n\t" // load %4 with address of 99
+ "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
+ " add.4 %4, %4, d15 \n\t" // add difference
+
+ " sub.4 d15, #0, %2 \n\t" // set up for jump table
+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
+ " shmrg.1 %1, %1, %1 \n\t"
+ " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c
+ " lea.4 %4, (%4,d15) \n\t"
+
+ " bfextu d15, %0, #2 \n\t" // d15 = (s & 3)
+ " jmpne.w.f 100f \n\t"
+ " calli %4, 0(%4) \n\t" // 4-byte alignment
+
+ "100: cmpi d15, #2 \n\t"
+ " jmpne.s.f 101f \n\t"
+ " move.2 (%0)2++, %1 \n\t"
+ " calli %4, 0(%4) \n\t" // 2-byte alignment
+
+ "101: move.1 (%0)1++, %1 \n\t"
+ " jmpgt.s.f 102f \n\t" // 3-byte alignment
+ " move.2 (%0)2++, %1 \n\t" // 1-byte alignment
+ "102: calli %4, 0(%4) \n\t"
+
+ "200: cmpi %3, #2 \n\t"
+ " jmplt.s.f 201f \n\t"
+ " move.2 (%0)2++, %1 \n\t"
+ " jmpeq.s.t 2f \n\t"
+ "201: move.1 (%0)1++, %1 \n\t"
+ " jmpt.w.t 2f \n\t"
+
+ "1: .rept 25 \n\t"
+ " movea (%0)4++, %1 \n\t"
+ " .endr \n\t"
+ " .rept 7 \n\t"
+ " move.4 (%0)4++, %1 \n\t"
+ " .endr \n\t"
+ " add.4 %2, #-32, %2 \n\t"
+ " jmpgt.w.f 1b \n\t"
+
+ " and.4 %3, #3, %3 \n\t" // test bit 1 of n
+ " jmpne.w.f 200b \n\t"
+ "2: \n\t"
+ : "+a"(s), "+d"(c), "+d"(m), "+d"(n), "=a"(aligned_start)
+ :
+ : "d15", "memory", "cc"
+ );
+
+ return s_ret;
+ }
+
+ __asm__ volatile (
+ " call %3, 99f \n\t" // load %3 with address of 99
+ "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
+ " add.4 %3, %3, d15 \n\t" // add difference
+
+ " sub.4 d15, #0, %2 \n\t"
+ " jmpeq.w.f 2f \n\t"
+ " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1)
+ " lea.4 %3, (%3,d15) \n\t"
+ " calli %3, 0(%3) \n\t"
+
+ "1: .rept 8 \n\t"
+ " move.1 (%0)1++, %1 \n\t"
+ " .endr \n\t"
+ "2: \n\t"
+
+ : "+a"(s), "+d"(c), "+d"(n), "=a"(aligned_start)
+ :
+ : "d15", "memory", "cc"
+ );
+
+ return s_ret;
+}
+libc_hidden_def(memset)
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/Makefile.arch
@@ -0,0 +1,28 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+#CSRC := \
+# brk.c \
+# crtbegin.c \
+# crtend.c
+#
+#SSRC := \
+# __longjmp.S \
+# bsd-_setjmp.S \
+# bsd-setjmp.S \
+# setjmp.S \
+# clone.S \
+# vfork.S
+
+CSRC := \
+ syscall.c __syscall_error.c
+
+SSRC := \
+ clone.S setjmp.S vfork.S
+
+ARCH_CFLAGS := $(CPU_CFLAGS-y)
+include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/__syscall_error.c
@@ -0,0 +1,11 @@
+#include <errno.h>
+#include <features.h>
+
+/* This routine is jumped to by some of the syscall handlers, to stash
+ * an error number into errno. */
+int __syscall_error(int err_no) attribute_hidden;
+int __syscall_error(int err_no)
+{
+ __set_errno(err_no);
+ return -1;
+}
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/elf-fdpic.h
@@ -0,0 +1,115 @@
+/* Copyright 2003, 2004 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation; either version 2.1 of the
+License, or (at your option) any later version.
+
+In addition to the permissions in the GNU Lesser General Public
+License, the Free Software Foundation gives you unlimited
+permission to link the compiled version of this file with other
+programs, and to distribute those programs without any restriction
+coming from the use of this file. (The GNU Lesser General Public
+License restrictions do apply in other respects; for example, they
+cover modification of the file, and distribution when not linked
+into another program.)
+
+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
+Library 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; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifndef _BITS_ELF_FDPIC_H
+#define _BITS_ELF_FDPIC_H
+
+/* These data structures are described in the FDPIC ABI extension.
+ The kernel passes a process a memory map, such that for every LOAD
+ segment there is an elf32_fdpic_loadseg entry. A pointer to an
+ elf32_fdpic_loadmap is passed in d8 at start-up, and a pointer to
+ an additional such map is passed in d9 for the interpreter, when
+ there is one. */
+
+#include <elf.h>
+
+/* This data structure represents a PT_LOAD segment. */
+struct elf32_fdpic_loadseg
+{
+ /* Core address to which the segment is mapped. */
+ Elf32_Addr addr;
+ /* VMA recorded in the program header. */
+ Elf32_Addr p_vaddr;
+ /* Size of this segment in memory. */
+ Elf32_Word p_memsz;
+};
+
+struct elf32_fdpic_loadmap {
+ /* Protocol version number, must be zero. */
+ Elf32_Half version;
+ /* Number of segments in this map. */
+ Elf32_Half nsegs;
+ /* The actual memory map. */
+ struct elf32_fdpic_loadseg segs[/*nsegs*/];
+};
+
+struct elf32_fdpic_loadaddr {
+ struct elf32_fdpic_loadmap *map;
+ void *got_value;
+};
+
+/* Map a pointer's VMA to its corresponding address according to the
+ load map. */
+static __always_inline void *
+__reloc_pointer (void *p,
+ const struct elf32_fdpic_loadmap *map)
+{
+ int c;
+
+#if 0
+ if (map->version != 0)
+ /* Crash. */
+ ((void(*)())0)();
+#endif
+
+ /* No special provision is made for NULL. We don't want NULL
+ addresses to go through relocation, so they shouldn't be in
+ .rofixup sections, and, if they're present in dynamic
+ relocations, they shall be mapped to the NULL address without
+ undergoing relocations. */
+
+ for (c = 0;
+ /* Take advantage of the fact that the loadmap is ordered by
+ virtual addresses. In general there will only be 2 entries,
+ so it's not profitable to do a binary search. */
+ c < map->nsegs && p >= (void*)map->segs[c].p_vaddr;
+ c++)
+ {
+ /* This should be computed as part of the pointer comparison
+ above, but we want to use the carry in the comparison, so we
+ can't convert it to an integer type beforehand. */
+ unsigned long offset = p - (void*)map->segs[c].p_vaddr;
+ /* We only check for one-past-the-end for the last segment,
+ assumed to be the data segment, because other cases are
+ ambiguous in the absence of padding between segments, and
+ rofixup already serves as padding between text and data.
+ Unfortunately, unless we special-case the last segment, we
+ fail to relocate the _end symbol. */
+ if (offset < map->segs[c].p_memsz
+ || (offset == map->segs[c].p_memsz && c + 1 == map->nsegs))
+ return (char*)map->segs[c].addr + offset;
+ }
+
+ /* We might want to crash instead. */
+ return (void*)-1;
+}
+
+# define __RELOC_POINTER(ptr, loadaddr) \
+ (__reloc_pointer ((void*)(ptr), \
+ (loadaddr).map))
+
+#endif /* _BITS_ELF_FDPIC_H */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/endian.h
@@ -0,0 +1,7 @@
+/* Ubicom32 is big-endian. */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __BIG_ENDIAN
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/fcntl.h
@@ -0,0 +1,226 @@
+/* O_*, F_*, FD_* bit values for Linux.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ located on an ext2 file system */
+#define O_ACCMODE 0003
+#define O_RDONLY 00
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_CREAT 0100 /* not fcntl */
+#define O_EXCL 0200 /* not fcntl */
+#define O_NOCTTY 0400 /* not fcntl */
+#define O_TRUNC 01000 /* not fcntl */
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_NDELAY O_NONBLOCK
+#define O_SYNC 010000
+#define O_FSYNC O_SYNC
+#define O_ASYNC 020000
+
+#ifdef __USE_GNU
+# define O_DIRECTORY 040000 /* Must be a directory. */
+# define O_NOFOLLOW 0100000 /* Do not follow links. */
+# define O_DIRECT 0200000 /* Direct disk access. */
+# define O_NOATIME 01000000 /* Do not set atime. */
+# define O_CLOEXEC 02000000 /* set close_on_exec */
+# define O_STREAMING 04000000 /* streaming access */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC O_SYNC /* Synchronize data. */
+# define O_RSYNC O_SYNC /* Synchronize read operations. */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE 0400000
+#endif
+
+/* Values for the second argument to `fcntl'. */
+#define F_DUPFD 0 /* Duplicate file descriptor. */
+#define F_GETFD 1 /* Get file descriptor flags. */
+#define F_SETFD 2 /* Set file descriptor flags. */
+#define F_GETFL 3 /* Get file status flags. */
+#define F_SETFL 4 /* Set file status flags. */
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK 5 /* Get record locking info. */
+# define F_SETLK 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW 7 /* Set record locking info (blocking). */
+#else
+# define F_GETLK F_GETLK64 /* Get record locking info. */
+# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
+# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
+#endif
+#define F_GETLK64 12 /* Get record locking info. */
+#define F_SETLK64 13 /* Set record locking info (non-blocking). */
+#define F_SETLKW64 14 /* Set record locking info (blocking). */
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
+# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG 10 /* Set number of signal to be sent. */
+# define F_GETSIG 11 /* Get number of signal to be sent. */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE 1024 /* Set a lease. */
+# define F_GETLEASE 1025 /* Enquire what lease is active. */
+# define F_NOTIFY 1026 /* Request notfications on a directory. */
+#endif
+
+/* For F_[GET|SET]FL. */
+#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
+#define F_RDLCK 0 /* Read lock. */
+#define F_WRLCK 1 /* Write lock. */
+#define F_UNLCK 2 /* Remove lock. */
+
+/* For old implementation of bsd flock(). */
+#define F_EXLCK 4 /* or 3 */
+#define F_SHLCK 8 /* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation. */
+# define LOCK_SH 1 /* shared lock */
+# define LOCK_EX 2 /* exclusive lock */
+# define LOCK_NB 4 /* or'd with one of the above to prevent
+ blocking */
+# define LOCK_UN 8 /* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND 32 /* This is a mandatory flock: */
+# define LOCK_READ 64 /* ... which allows concurrent read operations. */
+# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
+# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY. */
+# define DN_ACCESS 0x00000001 /* File accessed. */
+# define DN_MODIFY 0x00000002 /* File modified. */
+# define DN_CREATE 0x00000004 /* File created. */
+# define DN_DELETE 0x00000008 /* File removed. */
+# define DN_RENAME 0x00000010 /* File renamed. */
+# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
+# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
+#endif
+
+struct flock
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+#ifndef __USE_FILE_OFFSET64
+ __off_t l_start; /* Offset where the lock begins. */
+ __off_t l_len; /* Size of the locked area; zero means until EOF. */
+#else
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+#endif
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+ BSD systems which did not managed to hide these kernel macros. */
+#ifdef __USE_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+/* Advise to `posix_fadvise'. */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
+
+#ifdef __USE_GNU
+# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
+ in the range before performing the
+ write. */
+# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
+ dirty pages in the range which are
+ not presently under writeback. */
+# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
+ the range after performing the
+ write. */
+#endif
+
+__BEGIN_DECLS
+
+#ifdef __USE_GNU
+
+/* Provide kernel hint to read ahead. */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+ __THROW;
+
+/* Selective file content synch'ing. */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+ unsigned int __flags);
+
+/* Splice address range into a pipe. */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+ size_t __count, unsigned int __flags);
+
+/* Splice two files together. */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+ __off64_t *__offout, size_t __len,
+ unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers. */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+ unsigned int __flags);
+
+#endif
+
+__END_DECLS
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/kernel_stat.h
@@ -0,0 +1,55 @@
+#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 whatever this particular arch's kernel thinks
+ * struct kernel_stat should look like... It turns out each arch has a
+ * different opinion on the subject... */
+
+struct kernel_stat {
+ unsigned short st_dev;
+ unsigned short __pad1;
+ unsigned long st_ino;
+ unsigned short st_mode;
+ unsigned short st_nlink;
+ unsigned short st_uid;
+ unsigned short st_gid;
+ unsigned short st_rdev;
+ unsigned short __pad2;
+ unsigned long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+struct kernel_stat64 {
+ unsigned char __pad0[6];
+ unsigned short st_dev;
+ unsigned char __pad1[4];
+#define _HAVE_STAT64___ST_INO
+ unsigned long __st_ino;
+ unsigned int st_mode;
+ unsigned int st_nlink;
+ unsigned long st_uid;
+ unsigned long st_gid;
+ unsigned char __pad2[6];
+ unsigned short st_rdev;
+ unsigned char __pad3[4];
+ long long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks; /* Number 512-byte blocks allocated. */
+ unsigned long __pad4; /* future possible st_blocks high bits */
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned long long st_ino;
+};
+
+#endif /* _BITS_STAT_STRUCT_H */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/kernel_types.h
@@ -0,0 +1,44 @@
+/* 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 __ARCH_UBICOM32_POSIX_TYPES_H
+#define __ARCH_UBICOM32_POSIX_TYPES_H
+
+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 short __kernel_uid_t;
+typedef unsigned short __kernel_gid_t;
+typedef unsigned int __kernel_size_t;
+typedef int __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_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;
+typedef long long __kernel_loff_t;
+
+typedef struct {
+#ifdef __USE_ALL
+ int val[2];
+#else
+ int __val[2];
+#endif
+} __kernel_fsid_t;
+
+#endif /* __ARCH_UBICOM32_POSIX_TYPES_H */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/mman.h
@@ -0,0 +1,103 @@
+/* Definitions for POSIX memory map interface. Linux/m68k version.
+ Copyright (C) 1997, 2000, 2003, 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+ But the kernel header is not namespace clean. */
+
+
+/* Protections are chosen from these bits, OR'd together. The
+ implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ without PROT_READ. The only guarantees are that no writing will be
+ allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ 0x1 /* Page can be read. */
+#define PROT_WRITE 0x2 /* Page can be written. */
+#define PROT_EXEC 0x4 /* Page can be executed. */
+#define PROT_NONE 0x0 /* Page can not be accessed. */
+#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
+ growsdown vma (mprotect only). */
+#define PROT_GROWSUP 0x02000000 /* Extend change to start of
+ growsup vma (mprotect only). */
+
+/* Sharing types (must choose one and only one of these). */
+#define MAP_SHARED 0x01 /* Share changes. */
+#define MAP_PRIVATE 0x02 /* Changes are private. */
+#ifdef __USE_MISC
+# define MAP_TYPE 0x0f /* Mask for type of mapping. */
+#endif
+
+/* Other flags. */
+#define MAP_FIXED 0x10 /* Interpret addr exactly. */
+#ifdef __USE_MISC
+# define MAP_FILE 0
+# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
+# define MAP_ANON MAP_ANONYMOUS
+#endif
+
+/* These are Linux-specific. */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x0000100 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x0000800 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x0001000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x0002000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x0004000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x0008000 /* Populate (prefault) pagetables. */
+# define MAP_NONBLOCK 0x0010000 /* Do not block on IO. */
+# define MAP_UNINITIALIZE 0x4000000 /* For anonymous mmap, memory could be uninitialized. */
+#endif
+
+/* Flags to `msync'. */
+#define MS_ASYNC 1 /* Sync memory asynchronously. */
+#define MS_SYNC 4 /* Synchronous memory sync. */
+#define MS_INVALIDATE 2 /* Invalidate the caches. */
+
+/* Flags for `mlockall'. */
+#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
+#define MCL_FUTURE 2 /* Lock all additions to address
+ space. */
+
+/* Flags for `mremap'. */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1
+# define MREMAP_FIXED 2
+#endif
+
+/* Advice to `madvise'. */
+#ifdef __USE_BSD
+# define MADV_NORMAL 0 /* No further special treatment. */
+# define MADV_RANDOM 1 /* Expect random page references. */
+# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define MADV_WILLNEED 3 /* Will need these pages. */
+# define MADV_DONTNEED 4 /* Don't need these pages. */
+# define MADV_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
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/setjmp.h
@@ -0,0 +1,52 @@
+/* Define the machine-dependent type `jmp_buf'. Ubicom32 version.
+ Copyright (C) 1992,93,95,97,2000 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 _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
+/*
+ * This is the structure where we are going to save D10-D13, A0, A1, A2, A5, A6 and SP(A7).
+ * A5 is the return address. Call to setjmp will save these. Call to longjmp will return
+ * Control to the address in A5.
+ */
+typedef struct setjmp_save_struct {
+ unsigned long d10; /* D10 */
+ unsigned long d11; /* D11 */
+ unsigned long d12; /* D12 */
+ unsigned long d13; /* D13 */
+ unsigned long a1; /* A1 */
+ unsigned long a2; /* A2 */
+ unsigned long a5; /* A5 return address. */
+ unsigned long a6; /* A6 */
+ unsigned long sp; /* A7 stack pointer. */
+} __jmp_buf[1];
+
+#endif
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void*)(jmpbuf)->sp)
+
+#endif /* bits/setjmp.h */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/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 Ubicom32 the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/syscalls.h
@@ -0,0 +1,81 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/* m68k headers does stupid stuff with __NR_iopl / __NR_vm86:
+ * #define __NR_iopl not supported
+ * #define __NR_vm86 not supported
+ */
+#undef __NR_iopl
+#undef __NR_vm86
+
+#ifndef __ASSEMBLER__
+
+#include <errno.h>
+
+/* Linux takes system call arguments in registers:
+
+ syscall number %d8
+ arg 1 %d0
+ arg 2 %d1
+ arg 3 %d2
+ arg 4 %d3
+ arg 5 %d4
+ arg 6 %d5
+*/
+
+#define __loadargs_0(name, dummy) \
+ d8 = (long int)name
+
+#define __loadargs_1(name, __arg1) \
+ __loadargs_0(name, 0); \
+ d0_retval = (long int) __arg1
+
+#define __loadargs_2(name, __arg1, __arg2) \
+ __loadargs_1(name, __arg1); \
+ d1 = (long int) __arg2
+
+#define __loadargs_3(name, __arg1, __arg2, __arg3) \
+ __loadargs_2(name, __arg1, __arg2); \
+ d2 = (long int) __arg3
+
+#define __loadargs_4(name, __arg1, __arg2, __arg3, __arg4) \
+ __loadargs_3(name, __arg1, __arg2, __arg3); \
+ d3 = (long int)__arg4
+
+#define __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
+ __loadargs_4(name, __arg1, __arg2, __arg3, __arg4); \
+ d4 = (long int)__arg5
+
+#define __loadargs_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
+ __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
+ d5 = (long int)__arg6
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+({ \
+ register long int d0_retval __asm__ ("d0"); \
+ register long int d1 __asm__ ("d1"); \
+ register long int d2 __asm__ ("d2"); \
+ register long int d3 __asm__ ("d3"); \
+ register long int d4 __asm__ ("d4"); \
+ register long int d5 __asm__ ("d5"); \
+ register long int d8 __asm__ ("d8"); \
+ __loadargs_##nr (name, args); \
+ __asm__ __volatile__ ( \
+ " moveai a5, #%%hi(0x40400000)\n\t" \
+ " calli a5, 16(a5)\n\t" \
+ : "+r" (d0_retval), "+r" (d1), "+r" (d2), "+r" (d3), \
+ "+r" (d4), "+r" (d5), "+r" (d8) : \
+ : "cc", "memory", \
+ "acc0_lo", "acc0_hi", "acc1_lo", "acc1_hi", \
+ "source3", \
+ "a0", "a3", "a4", "a5", \
+ "d6", "d7", "d9", "d14", "d15" \
+ ); \
+ d0_retval; \
+})
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/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 */
+/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/
+#undef __UCLIBC_ABORT_INSTRUCTION__
+
+/* can your target use syscall6() for mmap ? */
+#undef __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 */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/bits/wordsize.h
@@ -0,0 +1,19 @@
+/* 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. */
+
+#define __WORDSIZE 32
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/clone.S
@@ -0,0 +1,71 @@
+#include <sys/syscall.h>
+
+ .global __syscall_error
+
+/* int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+ .text
+ .type clone,@function
+ .global clone
+clone:
+ /* Sanity check arguments. */
+ sub.4 #0, #0, d0 /* Test if fn is zero. */
+ jmpeq.f 1f /* arg bad */
+ sub.4 #0, #0, d1 /* Test if child_stack is zero. */
+ jmpeq.f 1f /* arg bad */
+
+ /* Set up child_stack frame.. arg and fn */
+ move.4 a3, d1
+ move.4 -4(a3)++, d3 /* push 'arg' to child stack */
+ move.4 -4(a3)++, d0 /* push fn to child stack, this will become a5
+ * on new child */
+ move.4 d1, a3
+ move.4 -4(sp)++, a5 /* push a5 to our stack */
+
+ /*
+ * The syscall clone is clone(int flags, void *child_stack) so we set
+ * that up now
+ */
+ move.4 d0, d2 /* Move flags to d0 */
+
+ /* Do Clone syscall */
+ movei d8, #__NR_clone
+ moveai a5, #%hi(0x40400000)
+ calli a5, 0x10(a5)
+ move.4 a5, (sp)4++ /* pop a5 from stack */
+
+ /* Clone Complete */
+ cmpi d0, #0 /* Test if d0 is less than zero. If it is we
+ * return the error */
+ jmplt.f 2f /* If return is less than we had an error */
+ jmpeq.f 3f /* If return is 0 we are in the clone, jump to
+ * thread start */
+ ret a5 /* d0 is pid */
+
+ /* Invalid Value */
+1: movei d0, #-22 /* EINVAL */
+
+ /* Call syscall Error */
+2: sub.4 d0, #0, d0 /* d0 = -d0 */
+#if defined(__UBICOM32_FDPIC__)
+ call a3, __syscall_error
+#else
+ moveai a3, #%hi(__syscall_error)
+ calli a3, %lo(__syscall_error)(a3)
+#endif
+ /* Child Thread Start */
+3:
+#if defined(__UBICOM32_FDPIC__)
+ /* a5 actually contains a function descriptor for fdpic */
+ move.4 a0, 4(a5) /* set GOT for this function */
+ move.4 a5, 0(a5) /* get address of entry point */
+#endif
+ move.4 d0, (sp)4++ /* pop 'arg' to stack */
+ calli a5, 0(a5)
+ movei d8, #__NR_exit
+ moveai a3, #%hi(0x40400000)
+ calli a3, 0x10(a3)
+
+ .size clone, . - clone
+ .global __GI_clone
+ .hidden __GI_clone
+ .set __GI_clone,clone
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/crt1.S
@@ -0,0 +1,179 @@
+/* Startup code compliant to the ELF m68k ABI.
+ Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <features.h>
+
+/* This is the canonical entry point, usually the first thing in the text
+ segment. The SVR4/m68k ABI says that when the entry point runs,
+ most registers' values are unspecified, except for:
+
+ %a1 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.
+
+ %sp The stack contains the arguments and environment:
+ 0(%sp) argc
+ 4(%sp) argv[0]
+ ...
+ (4*argc)(%sp) NULL
+ (4*(argc+1))(%sp) envp[0]
+ ...
+ NULL
+
+ The uclinux conventions are different. %a1 is not defined on entry
+ and the stack is laid out as follows:
+
+ 0(%sp) argc
+ 4(%sp) argv
+ 8(%sp) envp
+*/
+
+
+ .text
+ .type main,@function
+ .type _init,%function
+ .type _fini,%function
+#ifndef __UCLIBC_CTOR_DTOR__
+ .weak _init
+ .weak _fini
+#endif
+ .globl _start
+ .global __uClibc_main;
+ .type __uClibc_main,@function;
+ .type _start,@function
+_start:
+
+#if defined(__UBICOM32_FDPIC__) && !defined(L_Scrt1)
+ /* P0 contains a pointer to the program's load map. */
+ call a3, .Lcall;
+.Lcall:
+ move.4 d0, d1 ; load exec_map_addr
+ moveai a4, #%hi(.Lcall)
+ lea.1 d15, %lo(.Lcall)(a4)
+ sub.4 d15, a3, d15 ; difference between .Lcall and actual address of .Lcall
+ moveai a3, #%hi(__ROFIXUP_LIST__)
+ lea.1 d1, %lo(__ROFIXUP_LIST__)(a3)
+ moveai a3, #%hi(__ROFIXUP_END__)
+ lea.1 d2, %lo(__ROFIXUP_END__)(a3)
+ add.4 d1, d1, d15
+ add.4 d2, d2, d15
+ call a5, __self_reloc ; returns GOT in d0
+ move.4 a0, d0 ; set GOT
+#endif
+
+/*
+ all this is setup to make the following call.
+
+ void __uClibc_main(
+ d0 - int (*main)(int, char **, char **),
+ d1 - int argc, (d1)
+ d2 - char **argv,
+ d3 - void (*app_init)(void),
+ d4 - void (*app_fini)(void),
+ d5 - void (*rtld_fini)(void),
+ d6 - void *stack_end
+ );
+ */
+
+ /*
+ * Load pointer to main into d0
+ */
+#ifdef __UBICOM32_FDPIC__
+ movei d0, #%got_funcdesc_lo(main)
+ move.4 d0, (a0, d0)
+#else
+ moveai a3, #%hi(main)
+ lea.1 d0, %lo(main)(a3)
+#endif
+
+ /*
+ * Grab the environment stuff from stack and set up d1, d2 with it.
+ */
+ move.4 d1, (sp)
+#ifdef __UBICOM32_FDPIC__
+ /* For FDPIC the calling convention is different than flat */
+ lea.1 d2, 4(sp)
+#else
+ move.4 d2, 4(sp)
+#endif
+
+#ifdef __UCLIBC_CTOR_DTOR__
+ /*
+ * Load pointer to _init into d3
+ */
+#ifdef __UBICOM32_FDPIC__
+ movei d3, #%got_funcdesc_lo(_init)
+ move.4 d3, (a0, d3)
+#else
+ moveai a3, #%hi(_init)
+ lea.1 d3, %lo(_init)(a3)
+#endif
+
+ /*
+ * Load pointer to _fini into d4
+ */
+#ifdef __UBICOM32_FDPIC__
+ movei d4, #%got_funcdesc_lo(_fini)
+ move.4 d4, (a0, d4)
+#else
+ moveai a3, #%hi(_fini)
+ lea.1 d4, %lo(_fini)(a3)
+#endif
+
+#else /* !__UCLIBC_CTOR_DTOR__ */
+ move.4 d3, #0 ; _init
+ move.4 d4, #0 ; _fini
+#endif
+
+#ifdef __UBICOM32_FDPIC__
+ move.4 d5, a1 ; ldso _fini funcdesc (see dl-startup.h)
+#else
+ movei d5, #0 ; rtld_fini (not used)
+#endif
+
+ move.4 d6, sp ; Stack End.
+
+ /* Call the user's main function, and exit with its value. But
+ let the libc call main. */
+#ifdef __UBICOM32_FDPIC__
+ call a5, __uClibc_main
+#else
+ moveai a5, #%hi(__uClibc_main)
+ calli a5, %lo(__uClibc_main)(a5)
+#endif
+
+ bkpt #-1 ; Crash if somehow `exit' does return.
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/crti.S
@@ -0,0 +1,54 @@
+/* Specialized code needed to support construction and destruction of
+ file-scope objects in C++ and Java code, and to support exception handling.
+ Copyright (C) 1999 Free Software Foundation, Inc.
+ Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca).
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GCC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* As a special exception, if you link this library with files
+ compiled with GCC to produce an executable, this does not cause
+ the resulting executable to be covered by the GNU General Public License.
+ This exception does not however invalidate any other reasons why
+ the executable file might be covered by the GNU General Public License. */
+
+/*
+ * This file just supplies function prologues for the .init and .fini
+ * sections. It is linked in before crtbegin.o.
+ */
+ .file "crti.o"
+ .ident "GNU C crti.o"
+
+ .section .init
+ .align 2
+ .globl _init
+ .type _init, @function
+_init:
+ move.4 -4(sp)++, a5
+#ifdef __UBICOM32_FDPIC__
+ move.4 -4(sp)++, a0
+#endif
+
+ .section .fini
+ .align 2
+ .globl _fini
+ .type _fini, @function
+_fini:
+ move.4 -4(sp)++, a5
+#ifdef __UBICOM32_FDPIC__
+ move.4 -4(sp)++, a0
+#endif
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/crtn.S
@@ -0,0 +1,47 @@
+/* Specialized code needed to support construction and destruction of
+ file-scope objects in C++ and Java code, and to support exception handling.
+ Copyright (C) 1999 Free Software Foundation, Inc.
+ Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca).
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GCC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* As a special exception, if you link this library with files
+ compiled with GCC to produce an executable, this does not cause
+ the resulting executable to be covered by the GNU General Public License.
+ This exception does not however invalidate any other reasons why
+ the executable file might be covered by the GNU General Public License. */
+
+/*
+ * This file supplies function epilogues for the .init and .fini sections.
+ * It is linked in after all other files.
+ */
+
+ .file "crtn.o"
+ .ident "GNU C crtn.o"
+
+ .section .init
+#ifdef __UBICOM32_FDPIC__
+ move.4 a0, (sp)4++
+#endif
+ ret (sp)4++
+
+ .section .fini
+#ifdef __UBICOM32_FDPIC__
+ move.4 a0, (sp)4++
+#endif
+ ret (sp)4++
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/crtreloc.c
@@ -0,0 +1,145 @@
+/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ written by Alexandre Oliva <aoliva@redhat.com>
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation; either version 2.1 of the
+License, or (at your option) any later version.
+
+In addition to the permissions in the GNU Lesser General Public
+License, the Free Software Foundation gives you unlimited
+permission to link the compiled version of this file with other
+programs, and to distribute those programs without any restriction
+coming from the use of this file. (The GNU Lesser General Public
+License restrictions do apply in other respects; for example, they
+cover modification of the file, and distribution when not linked
+into another program.)
+
+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
+Library 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; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifdef __UBICOM32_FDPIC__
+
+#include <sys/types.h>
+#include <link.h>
+
+/* This file is to be compiled into crt object files, to enable
+ executables to easily self-relocate. */
+
+union word {
+ char c[4];
+ void *v;
+};
+
+/* Compute the runtime address of pointer in the range [p,e), and then
+ map the pointer pointed by it. */
+static __always_inline void ***
+reloc_range_indirect (void ***p, void ***e,
+ const struct elf32_fdpic_loadmap *map)
+{
+ while (p < e)
+ {
+ if (*p != (void **)-1)
+ {
+ void *ptr = __reloc_pointer (*p, map);
+ if (ptr != (void *)-1)
+ {
+ void *pt;
+ if ((long)ptr & 3)
+ {
+ unsigned char *c = ptr;
+ int i;
+ unsigned long v = 0;
+ for (i = 0; i < 4; i++)
+ v |= c[i] << 8 * i;
+ pt = (void *)v;
+ }
+ else
+ pt = *(void**)ptr;
+ pt = __reloc_pointer (pt, map);
+ if ((long)ptr & 3)
+ {
+ unsigned char *c = ptr;
+ int i;
+ unsigned long v = (unsigned long)pt;
+ for (i = 0; i < 4; i++, v >>= 8)
+ c[i] = v;
+ }
+ else
+ *(void**)ptr = pt;
+ }
+ }
+ p++;
+ }
+ return p;
+}
+
+/* Call __reloc_range_indirect for the given range except for the last
+ entry, whose contents are only relocated. It's expected to hold
+ the GOT value. */
+void* attribute_hidden
+__self_reloc (const struct elf32_fdpic_loadmap *map,
+ void ***p, void ***e)
+{
+ p = reloc_range_indirect (p, e-1, map);
+
+ if (p >= e)
+ return (void*)-1;
+
+ return __reloc_pointer (*p, map);
+}
+
+#if 0
+/* These are other functions that might be useful, but that we don't
+ need. */
+
+/* Remap pointers in [p,e). */
+static __always_inline void**
+reloc_range (void **p, void **e,
+ const struct elf32_fdpic_loadmap *map)
+{
+ while (p < e)
+ {
+ *p = __reloc_pointer (*p, map);
+ p++;
+ }
+ return p;
+}
+
+/* Remap p, adjust e by the same offset, then map the pointers in the
+ range determined by them. */
+void attribute_hidden
+__reloc_range (const struct elf32_fdpic_loadmap *map,
+ void **p, void **e)
+{
+ void **old = p;
+
+ p = __reloc_pointer (p, map);
+ e += p - old;
+ reloc_range (p, e, map);
+}
+
+/* Remap p, adjust e by the same offset, then map pointers referenced
+ by the (unadjusted) pointers in the range. Return the relocated
+ value of the last pointer in the range. */
+void* attribute_hidden
+__reloc_range_indirect (const struct elf32_fdpic_loadmap *map,
+ void ***p, void ***e)
+{
+ void ***old = p;
+
+ p = __reloc_pointer (p, map);
+ e += p - old;
+ return reloc_range_indirect (p, e, map);
+}
+#endif
+
+#endif /* __UBICOM32_FDPIC__ */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/setjmp.S
@@ -0,0 +1,72 @@
+/* Setjmp for Ubicom32 */
+ .text
+ .global _setjmp
+ .type _setjmp,@function
+_setjmp:
+ movea a3, d0 ; A3 now holds the jmp buf that was passed in.
+ move.4 (a3)4++, d10
+ move.4 (a3)4++, d11
+ move.4 (a3)4++, d12
+ move.4 (a3)4++, d13
+ move.4 (a3)4++, a1
+ move.4 (a3)4++, a2
+ move.4 (a3)4++, a5
+ move.4 (a3)4++, a6
+ move.4 (a3)4++, a7
+ move.4 d0, #0
+
+ calli a5, 0(a5)
+ .size _setjmp, . - _setjmp
+
+/*
+ * __sigsetjmp for Ubicom32
+ * d0 holds sigjmp_buf and d1 holds the savemask. We will save the frame and then just call __sigjmp_save to do the mask save.
+ */
+ .global __sigsetjmp
+ .type __sigsetjmp,@function
+__sigsetjmp:
+ movea a3, d0 ; A3 now holds the jmp buf that was passed in.
+ move.4 (a3)4++, d10
+ move.4 (a3)4++, d11
+ move.4 (a3)4++, d12
+ move.4 (a3)4++, d13
+ move.4 (a3)4++, a1
+ move.4 (a3)4++, a2
+ move.4 (a3)4++, a5
+ move.4 (a3)4++, a6
+ move.4 (a3)4++, a7
+
+ ;; The frame has been saved. Call _sigjmp_save to get sigmask saved. a5 still has the return address and it will go back to that.
+#if defined(__UBICOM32_FDPIC__)
+ call a3, __sigjmp_save
+#else
+ moveai a3, #%hi(__sigjmp_save)
+ calli a3, %lo(__sigjmp_save)(a3)
+#endif
+ .size __sigjmp_save, . - __sigjmp_save
+
+ .global __longjmp
+ .type __longjmp,@function
+__longjmp:
+ movea a3, d0 ; A3 now holds the jmp buf that was passed in.
+ move.4 d10, (a3)4++
+ move.4 d11, (a3)4++
+ move.4 d12, (a3)4++
+ move.4 d13, (a3)4++
+ move.4 a1 , (a3)4++
+ move.4 a2 , (a3)4++
+ move.4 a5 , (a3)4++
+ move.4 a6 , (a3)4++
+ move.4 a7 , (a3)4++
+
+ sub.4 #0, #0, d1 ; Test if d1 is zero. If it is we have to return 1 other wise return content of d1
+ jmpeq.t 2f
+ move.4 d0, d1 ; d1 is non zero load it into d0
+ jmpt.t 3f
+
+2: move.4 d0, #1
+3: calli a5, 0(a5)
+ .size __longjmp, . - __longjmp
+ .global __GI___longjmp
+ .hidden __GI___longjmp
+ .set __GI___longjmp,__longjmp
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/sys/procfs.h
@@ -0,0 +1,122 @@
+/* Copyright (C) 1996, 1997, 1999, 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_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somehow modelled after the file of the same name on SysVr4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. */
+
+#include <features.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/ucontext.h>
+#include <bits/wordsize.h>
+
+__BEGIN_DECLS
+
+#define ELF_NGREG 38
+
+typedef struct
+ {
+ union
+ {
+ unsigned long pr_regs[32];
+ double pr_dregs[16];
+ } pr_fr;
+ unsigned long __unused;
+ unsigned long pr_fsr;
+ unsigned char pr_qcnt;
+ unsigned char pr_q_entrysize;
+ unsigned char pr_en;
+ unsigned int pr_q[64];
+ } elf_fpregset_t;
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+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. Fields present but not used are
+ marked with "XXX". */
+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. */
+ };
+
+/* 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;
+
+
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/sys/ucontext.h
@@ -0,0 +1,104 @@
+/* Copyright (C) 1998, 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. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+/*
+ * Location of the users' stored registers relative to R0.
+ * Usage is as an index into a gregset_t array or as u.u_ar0[XX].
+ */
+#define REG_PSR (0)
+#define REG_PC (1)
+#define REG_SPARE (2)
+#define REG_WVALID (3)
+#define REG_G1 (4)
+#define REG_G2 (5)
+#define REG_G3 (6)
+#define REG_G4 (7)
+#define REG_G5 (8)
+#define REG_G6 (9)
+#define REG_G7 (10)
+#define REG_O0 (11)
+#define REG_O1 (12)
+#define REG_O2 (13)
+#define REG_O3 (14)
+#define REG_O4 (15)
+#define REG_O5 (16)
+#define REG_O6 (17)
+#define REG_O7 (18)
+#define REG_GLOBALS (19)
+
+/*
+ * A gregset_t is defined as an array type for compatibility with the reference
+ * source. This is important due to differences in the way the C language
+ * treats arrays and structures as parameters.
+ *
+ * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)),
+ * but that the ABI defines it absolutely to be 21 (resp. 19).
+ */
+
+#define NGREG 20
+typedef int greg_t;
+
+typedef greg_t gregset_t[NGREG];
+
+/*
+ * The following structures define how a register window can appear on the
+ * stack. This structure is available (when required) through the `gwins'
+ * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the
+ * maximum number of outstanding register windows defined in the NIOS
+ * architecture (*not* implementation).
+ */
+#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */
+struct rwindow
+ {
+ greg_t rw_local[8]; /* locals */
+ greg_t rw_in[8]; /* ins */
+ };
+
+#define rw_fp rw_in[6] /* frame pointer */
+#define rw_rtn rw_in[7] /* return address */
+
+typedef struct gwindows
+ {
+ int wbcnt;
+ int *spbuf[NIOS_MAXREGWINDOW];
+ struct rwindow wbuf[NIOS_MAXREGWINDOW];
+ } gwindows_t;
+
+typedef struct
+ {
+ gregset_t gregs; /* general register set */
+ gwindows_t *gwins; /* POSSIBLE pointer to register windows */
+ } mcontext_t;
+
+
+/* Userlevel context. */
+typedef struct ucontext
+ {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ __sigset_t uc_sigmask;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ } ucontext_t;
+
+#endif /* sys/ucontext.h */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/syscall.c
@@ -0,0 +1,32 @@
+/* vi: set sw=4 ts=4: */
+/* syscall for ubicom32/uClibc
+ *
+ * Copyright (C) 2008 by Ubicom Inc.
+ * Copyright (C) 2002 by 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
+ */
+
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+extern long syscall(long sysnum, long a, long b, long c, long d, long e, long f);
+long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
+{
+ int __NR_syscall_number = sysnum;
+ return (long) INLINE_SYSCALL(syscall_number, 6, a, b, c, d, e, f);
+}
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/vfork.S
@@ -0,0 +1,35 @@
+#include <sys/syscall.h>
+
+ .text
+ .type vfork,@function
+ .global vfork
+vfork:
+ move.4 -4(sp)++, a5 ; Save return address on the stack.
+ movei d8, #__NR_vfork
+ moveai a3, #%hi(0x40400000)
+ calli a5, 0x10(a3)
+
+ /*
+ * You get here only if the syscall bombed. If things had worked out the
+ * parent and child would have both returned to the instruction after
+ * the vfork call.
+ */
+ move.4 a5, (sp)4++ ; Pop the return address off the stack.
+ movei d1, #-125
+ sub.4 #0, d0, d1
+ jmplt.t 1f
+
+ ;; We have an error.
+ sub.4 d0, #0, d0 ; d0 = -res. Call __set_errno with that.
+#if defined(__UBICOM32_FDPIC__)
+ call a3, __syscall_error
+#else
+ moveai a3, #%hi(__syscall_error)
+ calli a3, %lo(__syscall_error)(a3) ; __syscall_error will return -1 and not come back here.
+#endif
+1:
+ calli a5, 0(a5)
+ .size vfork, . - vfork
+ .global __GI_vfork
+ .hidden __GI_vfork
+ .set __GI_vfork,vfork
--- a/libpthread/linuxthreads.old/pthread.c
+++ b/libpthread/linuxthreads.old/pthread.c
@@ -393,6 +393,10 @@ void __pthread_initialize_minimal(void)
#endif
__libc_multiple_threads_ptr = __libc_pthread_init (ptr_pthread_functions);
+#ifndef __ARCH_USE_MMU__
+ __pthread_initial_thread_tos =
+ (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
+#endif /* __ARCH_USE_MMU__ */
}
@@ -461,8 +465,11 @@ static void pthread_initialize(void)
* __pthread_initial_thread_bos at address 0. These bounds are refined as we
* malloc other stack frames such that they don't overlap. -StS
*/
- __pthread_initial_thread_tos =
- (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
+ if (__pthread_initial_thread_tos == NULL) {
+ __pthread_initial_thread_tos =
+ (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
+ }
+
__pthread_initial_thread_bos = (char *) 1; /* set it non-zero so we know we have been here */
PDEBUG("initial thread stack bounds: bos=%p, tos=%p\n",
__pthread_initial_thread_bos, __pthread_initial_thread_tos);
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/pt-machine.h
@@ -0,0 +1,68 @@
+/* Machine-dependent pthreads configuration and inline functions.
+
+ Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ralf Baechle <ralf@gnu.org>.
+ Based on the Alpha version by Richard Henderson <rth@tamu.edu>.
+
+ 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; see the file COPYING.LIB. If
+ not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#include <features.h>
+
+/*
+ * XXX try to make this inline
+ */
+extern long int testandset (int *spinlock);
+
+#ifndef PT_EI
+#define PT_EI
+#else
+/* Spinlock implementation; required. */
+
+/*
+ * testandset() is the basis for the pthread spin lock.
+ *
+ * This implementation only requires that we 'set' the state of *spinlock. As
+ * bset is allows us to atomically 'testandset' a single bit define our 'set' is
+ * such that we will set bit 0 (ignoring all other bits, which should also be
+ * zero).
+ * Return value of 1 implies that the bit was already set and is still
+ * set.
+ * Return value of 0 implies that the bit was not previously set but it
+ * now is.
+ */
+long int
+testandset (int *spinlock)
+{
+ int ret;
+ __asm__ volatile (
+ " move.4 %0, #0 \n\t" /* Assume that the bit is not currently set */
+ " bset %1, %1, #0 \n\t" /* Attempt to 'set' bit 0 */
+ " jmpeq.t 1f \n\t"
+ " move.4 %0, #1 \n\t" /* Bit was already set, so return 1 */
+ " 1: \n\t"
+ : "=r"(ret), "+U4"(*spinlock)
+ :
+ : "memory", "cc"
+ );
+ return ret;
+}
+#endif
+#endif /* pt-machine.h */
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/tls.h
@@ -0,0 +1,26 @@
+/* Definitions for thread-local data handling. linuxthreads/MIPS version.
+ Copyright (C) 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _TLS_H
+#define _TLS_H
+#ifdef HAVE_TLS_SUPPORT
+#warning no tls support
+#undef USE_TLS
+#endif
+#endif /* tls.h */
--- /dev/null
+++ b/libc/sysdeps/linux/ubicom32/sys/user.h
@@ -0,0 +1,40 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+#include <features.h>
+
+#include <asm/ptrace.h>
+
+struct user {
+ struct pt_regs regs; /* entire machine state */
+ 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 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 */
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