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Add framework to support loadable ELF modules (not much logic in place yet)

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5250 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-10-24 16:46:12 +00:00
parent af8679c104
commit b49a2605d0
35 changed files with 1802 additions and 651 deletions
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5
ChangeLog
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@ -3506,3 +3506,8 @@
ld.script files with the common one in this directory.
* configs/hymini-stm32v/scripts: Replace all of the identical
ld.script files with the common one in this directory.
* configs/lpcxpresso-lpc1768/scripts: Replace all of the identical
ld.script files with the common one in this directory.
* binfmt/elf.c, binfmt/libelf, include/elf.h, include/nuttx/elf.h: Add
basic framework for loadable ELF module support. The initial check-
in is non-functional and is simply the framework for ELF support.

4
Kconfig
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@ -395,6 +395,10 @@ menu "Memory Management"
source mm/Kconfig
endmenu
menu "Binary Formats"
source binfmt/Kconfig
endmenu
menu "Library Routines"
source lib/Kconfig
source libxx/Kconfig

34
binfmt/Kconfig
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@ -2,3 +2,37 @@
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config BINFMT_DISABLE
bool "Disble BINFMT support"
default n
---help---
By default, support for loadable binary formats is built. This logic
may be suppressed be defining this setting.
if !BINFMT_DISABLE
config NXFLAT
bool "Enable the NXFLAT Binary Format"
default n
---help---
Enable support for the NXFLAT binary format. Default: n
if NXFLAT
include binfmt/libnxflat/Kconfig
endif
config ELF
bool "Enable the ELF Binary Format"
default n
---help---
Enable support for the ELF binary format. Default: n
if ELF
include binfmt/libelf/Kconfig
endif
endif
config SYMTAB_ORDEREDBYNAME
bool "Symbol Tables Ordered by Name"
default n

55
binfmt/Makefile
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@ -1,7 +1,7 @@
############################################################################
# nxflat/Makefile
#
# Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
# Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -36,55 +36,54 @@
-include $(TOPDIR)/Make.defs
ifeq ($(WINTOOL),y)
INCDIROPT = -w
INCDIROPT = -w
endif
CFLAGS += ${shell $(TOPDIR)/tools/incdir.sh $(INCDIROPT) "$(CC)" $(TOPDIR)/sched}
CFLAGS += ${shell $(TOPDIR)/tools/incdir.sh $(INCDIROPT) "$(CC)" $(TOPDIR)/sched}
ifeq ($(CONFIG_NXFLAT),y)
include libnxflat/Make.defs
LIBNXFLAT_CSRCS += nxflat.c
endif
# Basic BINFMT source files
BINFMT_ASRCS =
BINFMT_CSRCS = binfmt_globals.c binfmt_register.c binfmt_unregister.c \
binfmt_loadmodule.c binfmt_unloadmodule.c binfmt_execmodule.c \
binfmt_exec.c binfmt_dumpmodule.c
binfmt_loadmodule.c binfmt_unloadmodule.c binfmt_execmodule.c \
binfmt_exec.c binfmt_dumpmodule.c
SYMTAB_ASRCS =
SYMTAB_CSRCS = symtab_findbyname.c symtab_findbyvalue.c \
symtab_findorderedbyname.c symtab_findorderedbyvalue.c
# Symbol table source files
SUBDIRS = libnxflat
BINFMT_CSRCS += symtab_findbyname.c symtab_findbyvalue.c \
symtab_findorderedbyname.c symtab_findorderedbyvalue.c
ASRCS = $(BINFMT_ASRCS) $(SYMTAB_ASRCS) $(LIBNXFLAT_ASRCS)
AOBJS = $(ASRCS:.S=$(OBJEXT))
# Add configured binary modules
CSRCS = $(BINFMT_CSRCS) $(SYMTAB_CSRCS) $(LIBNXFLAT_CSRCS)
COBJS = $(CSRCS:.c=$(OBJEXT))
VPATH =
SUBDIRS =
SRCS = $(ASRCS) $(CSRCS)
OBJS = $(AOBJS) $(COBJS)
include libnxflat/Make.defs
include libelf/Make.defs
BIN = libbinfmt$(LIBEXT)
BINFMT_AOBJS = $(BINFMT_ASRCS:.S=$(OBJEXT))
BINFMT_COBJS = $(BINFMT_CSRCS:.c=$(OBJEXT))
VPATH = libnxflat
BINFMT_SRCS = $(BINFMT_ASRCS) $(BINFMT_CSRCS)
BINFMT_OBJS = $(BINFMT_AOBJS) $(BINFMT_COBJS)
all: $(BIN)
BIN = libbinfmt$(LIBEXT)
$(AOBJS): %$(OBJEXT): %.S
all: $(BIN)
$(BINFMT_AOBJS): %$(OBJEXT): %.S
$(call ASSEMBLE, $<, $@)
$(COBJS): %$(OBJEXT): %.c
$(BINFMT_COBJS): %$(OBJEXT): %.c
$(call COMPILE, $<, $@)
$(BIN): $(OBJS)
@( for obj in $(OBJS) ; do \
$(BIN): $(BINFMT_OBJS)
@( for obj in $(BINFMT_OBJS) ; do \
$(call ARCHIVE, $@, $${obj}); \
done ; )
.depend: Makefile $(SRCS)
.depend: Makefile $(BINFMT_SRCS)
@$(MKDEP) --dep-path . --dep-path libnxflat \
$(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
$(CC) -- $(CFLAGS) -- $(BINFMT_SRCS) >Make.dep
@touch $@
depend: .depend

259
binfmt/elf.c Normal file
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@ -0,0 +1,259 @@
/****************************************************************************
* binfmt/elf.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <elf.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/binfmt.h>
#include <nuttx/elf.h>
#ifdef CONFIG_ELF
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* CONFIG_DEBUG, CONFIG_DEBUG_VERBOSE, and CONFIG_DEBUG_BINFMT have to be
* defined or CONFIG_ELF_DUMPBUFFER does nothing.
*/
#if !defined(CONFIG_DEBUG_VERBOSE) || !defined (CONFIG_DEBUG_BINFMT)
# undef CONFIG_ELF_DUMPBUFFER
#endif
#ifdef CONFIG_ELF_DUMPBUFFER
# define elf_dumpbuffer(m,b,n) bvdbgdumpbuffer(m,b,n)
#else
# define elf_dumpbuffer(m,b,n)
#endif
#ifndef MIN
# define MIN(a,b) (a < b ? a : b)
#endif
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int elf_loadbinary(FAR struct binary_s *binp);
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_BINFMT)
static void elf_dumploadinfo(FAR struct elf_loadinfo_s *loadinfo);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
static struct binfmt_s g_elfbinfmt =
{
NULL, /* next */
elf_loadbinary, /* load */
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: elf_dumploadinfo
****************************************************************************/
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_BINFMT)
static void elf_dumploadinfo(FAR struct elf_loadinfo_s *loadinfo)
{
unsigned long dsize = loadinfo->datasize + loadinfo->bsssize;
bdbg("LOAD_INFO:\n");
bdbg(" ISPACE:\n");
bdbg(" ispace: %08lx\n", loadinfo->ispace);
bdbg(" entryoffs: %08lx\n", loadinfo->entryoffs);
bdbg(" isize: %08lx\n", loadinfo->isize);
bdbg(" DSPACE:\n");
bdbg(" dspace: %08lx\n", loadinfo->dspace);
if (loadinfo->dspace != NULL)
{
bdbg(" crefs: %d\n", loadinfo->dspace->crefs);
bdbg(" region: %08lx\n", loadinfo->dspace->region);
}
bdbg(" datasize: %08lx\n", loadinfo->datasize);
bdbg(" bsssize: %08lx\n", loadinfo->bsssize);
bdbg(" (pad): %08lx\n", loadinfo->dsize - dsize);
bdbg(" stacksize: %08lx\n", loadinfo->stacksize);
bdbg(" dsize: %08lx\n", loadinfo->dsize);
bdbg(" RELOCS:\n");
bdbg(" relocstart: %08lx\n", loadinfo->relocstart);
bdbg(" reloccount: %d\n", loadinfo->reloccount);
bdbg(" HANDLES:\n");
bdbg(" filfd: %d\n", loadinfo->filfd);
}
#else
# define elf_dumploadinfo(i)
#endif
/****************************************************************************
* Name: elf_loadbinary
*
* Description:
* Verify that the file is an ELF binary and, if so, load the ELF
* binary into memory
*
****************************************************************************/
static int elf_loadbinary(struct binary_s *binp)
{
struct elf_loadinfo_s loadinfo; /* Contains globals for libelf */
int ret;
bvdbg("Loading file: %s\n", binp->filename);
/* Initialize the xflat library to load the program binary. */
ret = elf_init(binp->filename, &loadinfo);
elf_dumploadinfo(&loadinfo);
if (ret != 0)
{
bdbg("Failed to initialize for load of NXFLT program: %d\n", ret);
goto errout;
}
/* Load the program binary */
ret = elf_load(&loadinfo);
elf_dumploadinfo(&loadinfo);
if (ret != 0)
{
bdbg("Failed to load NXFLT program binary: %d\n", ret);
goto errout_with_init;
}
/* Bind the program to the exported symbol table */
ret = elf_bind(&loadinfo, binp->exports, binp->nexports);
if (ret != 0)
{
bdbg("Failed to bind symbols program binary: %d\n", ret);
goto errout_with_load;
}
/* Return the load information */
binp->entrypt = (main_t)(loadinfo.ispace + loadinfo.entryoffs);
binp->ispace = (void*)loadinfo.ispace;
binp->dspace = (void*)loadinfo.dspace;
binp->isize = loadinfo.isize;
binp->stacksize = loadinfo.stacksize;
elf_dumpbuffer("Entry code", (FAR const uint8_t*)binp->entrypt,
MIN(binp->isize - loadinfo.entryoffs,512));
elf_uninit(&loadinfo);
return OK;
errout_with_load:
elf_unload(&loadinfo);
errout_with_init:
elf_uninit(&loadinfo);
errout:
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_initialize
*
* Description:
* ELF support is built unconditionally. However, it order to
* use this binary format, this function must be called during system
* format in order to register the ELF binary format.
*
* Returned Value:
* This is a NuttX internal function so it follows the convention that
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_initialize(void)
{
int ret;
/* Register ourselves as a binfmt loader */
bvdbg("Registering ELF\n");
ret = register_binfmt(&g_elfbinfmt);
if (ret != 0)
{
bdbg("Failed to register binfmt: %d\n", ret);
}
return ret;
}
/****************************************************************************
* Name: elf_uninitialize
*
* Description:
* Unregister the ELF binary loader
*
* Returned Value:
* None
*
****************************************************************************/
void elf_uninitialize(void)
{
unregister_binfmt(&g_elfbinfmt);
}
#endif /* CONFIG_ELF */

9
binfmt/libelf/Kconfig Normal file
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@ -0,0 +1,9 @@
#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config ELF_DUMPBUFFER
bool "Dump ELF buffers"
default n
depends on DEBUG && DEBUG_VERBOSE

53
binfmt/libelf/Make.defs Normal file
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@ -0,0 +1,53 @@
############################################################################
# binfmt/libelf/Make.defs
#
# Copyright (C) 2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
# COPYRIGHT OWNER OR 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.
#
############################################################################
ifeq ($(CONFIG_ELF),y)
# ELF application interfaces
BINFMT_CSRCS += elf.c
# ELF library
BINFMT_CSRCS = libelf_init.c libelf_uninit.c libelf_load.c \
libelf_unload.c libelf_verify.c libelf_read.c \
libelf_bind.c
# Hook the libelf subdirectory into the build
VPATH += libelf
SUBDIRS += libelf
endif

187
binfmt/libelf/gnu-elf.ld Normal file
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@ -0,0 +1,187 @@
/****************************************************************************
* examples/elf/gnu-elf-gotoff.ld
*
* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
MEMORY
{
ISPACE : ORIGIN = 0x0, LENGTH = 2097152
DSPACE : ORIGIN = 0x0, LENGTH = 2097152
}
/****************************************************************************
* The XFLAT program image is divided into two segments:
*
* (1) ISpace (Instruction Space). This is the segment that contains
* code (.text). Everything in the segment should be fetch-able
* machine PC instructions (jump, branch, call, etc.).
* (2) DSpace (Data Space). This is the segment that contains both
* read-write data (.data, .bss) as well as read-only data (.rodata).
* Everything in this segment should be access-able with machine
* PIC load and store instructions.
*
* Older versions of GCC (at least up to GCC 4.3.3), use GOT-relative
* addressing to access RO data. In that case, read-only data (.rodata) must
* reside in D-Space and this linker script should be used.
*
* Newer versions of GCC (at least as of GCC 4.6.3), use PC-relative
* addressing to access RO data. In that case, read-only data (.rodata) must
* reside in I-Space and this linker script should NOT be used with those
* newer tools.
*
****************************************************************************/
SECTIONS
{
.text 0x00000000 :
{
/* ISpace is located at address 0. Every (unrelocated) ISpace
* address is an offset from the begining of this segment.
*/
text_start = . ;
*(.text)
*(.text.*)
*(.gnu.warning)
*(.stub)
*(.glue_7)
*(.glue_7t)
*(.jcr)
/* C++ support: The .init and .fini sections contain XFLAT-
* specific logic to manage static constructors and destructors.
*/
*(.gnu.linkonce.t.*)
*(.init)
*(.fini)
/* This is special code area at the end of the normal
text section. It contains a small lookup table at
the start followed by the code pointed to by entries
in the lookup table. */
. = ALIGN (4) ;
PROVIDE(__ctbp = .);
*(.call_table_data)
*(.call_table_text)
_etext = . ;
} > ISPACE
/* DSpace is also located at address 0. Every (unrelocated) DSpace
* address is an offset from the begining of this segment.
*/
.data 0x00000000 :
{
/* In this model, .rodata is access using PC-relative addressing
* and, hence, must also reside in the .text section.
*/
__data_start = . ;
*(.rodata)
*(.rodata1)
*(.rodata.*)
*(.gnu.linkonce.r*)
*(.data)
*(.data1)
*(.data.*)
*(.gnu.linkonce.d*)
*(.data1)
*(.eh_frame)
*(.gcc_except_table)
*(.gnu.linkonce.s.*)
*(__libc_atexit)
*(__libc_subinit)
*(__libc_subfreeres)
*(.note.ABI-tag)
/* C++ support. For each global and static local C++ object,
* GCC creates a small subroutine to construct the object. Pointers
* to these routines (not the routines themselves) are stored as
* simple, linear arrays in the .ctors section of the object file.
* Similarly, pointers to global/static destructor routines are
* stored in .dtors.
*/
*(.gnu.linkonce.d.*)
_ctors_start = . ;
*(.ctors)
_ctors_end = . ;
_dtors_start = . ;
*(.dtors)
_dtors_end = . ;
_edata = . ;
edata = ALIGN( 0x10 ) ;
} > DSPACE
.bss :
{
__bss_start = _edata ;
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.scommon)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.bss*)
*(.gnu.linkonce.b*)
*(COMMON)
end = ALIGN( 0x10 ) ;
_end = ALIGN( 0x10 ) ;
} > DSPACE
.got 0 : { *(.got.plt) *(.got) }
.junk 0 : { *(.rel*) *(.rela*) }
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

106
binfmt/libelf/libelf_bind.c Normal file
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@ -0,0 +1,106 @@
/****************************************************************************
* binfmt/libelf/libelf_bind.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <string.h>
#include <elf.h>
#include <errno.h>
#include <assert.h>
#include <debug.h>
#include <arpa/inet.h>
#include <nuttx/elf.h>
#include <nuttx/symtab.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* CONFIG_DEBUG, CONFIG_DEBUG_VERBOSE, and CONFIG_DEBUG_BINFMT have to be
* defined or CONFIG_ELF_DUMPBUFFER does nothing.
*/
#if !defined(CONFIG_DEBUG_VERBOSE) || !defined (CONFIG_DEBUG_BINFMT)
# undef CONFIG_ELF_DUMPBUFFER
#endif
#ifdef CONFIG_ELF_DUMPBUFFER
# define elf_dumpbuffer(m,b,n) bvdbgdumpbuffer(m,b,n)
#else
# define elf_dumpbuffer(m,b,n)
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_bind
*
* Description:
* Bind the imported symbol names in the loaded module described by
* 'loadinfo' using the exported symbol values provided by 'symtab'.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
FAR const struct symtab_s *exports, int nexports)
{
#warning "Missing logic"
return -ENOSYS;
}

189
binfmt/libelf/libelf_init.c Normal file
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@ -0,0 +1,189 @@
/****************************************************************************
* binfmt/libelf/libelf_init.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/stat.h>
#include <stdint.h>
#include <string.h>
#include <fcntl.h>
#include <elf.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* CONFIG_DEBUG, CONFIG_DEBUG_VERBOSE, and CONFIG_DEBUG_BINFMT have to be
* defined or CONFIG_ELF_DUMPBUFFER does nothing.
*/
#if !defined(CONFIG_DEBUG_VERBOSE) || !defined (CONFIG_DEBUG_BINFMT)
# undef CONFIG_ELF_DUMPBUFFER
#endif
#ifdef CONFIG_ELF_DUMPBUFFER
# define elf_dumpbuffer(m,b,n) bvdbgdumpbuffer(m,b,n)
#else
# define elf_dumpbuffer(m,b,n)
#endif
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_init
*
* Description:
* This function is called to configure the library to process an ELF
* program binary.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_init(FAR const char *filename, FAR struct elf_loadinfo_s *loadinfo)
{
uint32_t datastart;
uint32_t dataend;
uint32_t bssstart;
uint32_t bssend;
int ret;
bvdbg("filename: %s loadinfo: %p\n", filename, loadinfo);
/* Clear the load info structure */
memset(loadinfo, 0, sizeof(struct elf_loadinfo_s));
/* Open the binary file */
loadinfo->filfd = open(filename, O_RDONLY);
if (loadinfo->filfd < 0)
{
bdbg("Failed to open ELF binary %s: %d\n", filename, ret);
return -errno;
}
/* Read the ELF header from offset 0 */
ret = elf_read(loadinfo, (char*)&loadinfo->header,
sizeof(struct elf_hdr_s), 0);
if (ret < 0)
{
bdbg("Failed to read ELF header: %d\n", ret);
return ret;
}
elf_dumpbuffer("ELF header", (FAR const uint8_t*)&loadinfo->header,
sizeof(struct elf_hdr_s));
/* Verify the ELF header */
if (elf_verifyheader(&loadinfo->header) != 0)
{
/* This is not an error because we will be called to attempt loading
* EVERY binary. Returning -ENOEXEC simply informs the system that
* the file is not an ELF file. Besides, if there is something worth
* complaining about, nelf_verifyheader() has already
* done so.
*/
bdbg("Bad ELF header\n");
return -ENOEXEC;
}
/* Save all of the input values in the loadinfo structure
* and extract some additional information from the xflat
* header. Note that the information in the xflat header is in
* network order.
*/
datastart = ntohl(loadinfo->header.h_datastart);
dataend = ntohl(loadinfo->header.h_dataend);
bssstart = dataend;
bssend = ntohl(loadinfo->header.h_bssend);
/* And put this information into the loadinfo structure as well.
*
* Note that:
*
* isize = the address range from 0 up to datastart.
* datasize = the address range from datastart up to dataend
* bsssize = the address range from dataend up to bssend.
*/
loadinfo->entryoffs = ntohl(loadinfo->header.h_entry);
loadinfo->isize = datastart;
loadinfo->datasize = dataend - datastart;
loadinfo->bsssize = bssend - dataend;
loadinfo->stacksize = ntohl(loadinfo->header.h_stacksize);
/* This is the initial dspace size. We'll re-calculate this later
* after the memory has been allocated.
*/
loadinfo->dsize = bssend - datastart;
/* Get the offset to the start of the relocations (we'll relocate
* this later).
*/
loadinfo->relocstart = ntohl(loadinfo->header.h_relocstart);
loadinfo->reloccount = ntohs(loadinfo->header.h_reloccount);
return 0;
}

91
binfmt/libelf/libelf_load.c Normal file
View File

@ -0,0 +1,91 @@
/****************************************************************************
* binfmt/libelf/libelf_load.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <stdint.h>
#include <stdlib.h>
#include <elf.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
#ifndef MAX
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#endif
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_load
*
* Description:
* Loads the binary into memory, allocating memory, performing relocations
* and inializing the data and bss segments.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_load(FAR struct elf_loadinfo_s *loadinfo)
{
# warning "Missing logic"
return -ENOSYS;
}

165
binfmt/libelf/libelf_read.c Normal file
View File

@ -0,0 +1,165 @@
/****************************************************************************
* binfmt/libelf/libelf_read.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <elf.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
#undef ELF_DUMP_READDATA /* Define to dump all file data read */
#define DUMPER lib_rawprintf /* If ELF_DUMP_READDATA is defined, this
* is the API used to dump data */
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: elf_dumpreaddata
****************************************************************************/
#if defined(ELF_DUMP_READDATA)
static inline void elf_dumpreaddata(char *buffer, int buflen)
{
uint32_t *buf32 = (uint32_t*)buffer;
int i;
int j;
for (i = 0; i < buflen; i += 32)
{
DUMPER("%04x:", i);
for (j = 0; j < 32; j += sizeof(uint32_t))
{
DUMPER(" %08x", *buf32++);
}
DUMPER("\n");
}
}
#else
# define elf_dumpreaddata(b,n)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_read
*
* Description:
* Read 'readsize' bytes from the object file at 'offset'
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_read(struct elf_loadinfo_s *loadinfo, char *buffer, int readsize, int offset)
{
ssize_t nbytes; /* Number of bytes read */
off_t rpos; /* Position returned by lseek */
char *bufptr; /* Next buffer location to read into */
int bytesleft; /* Number of bytes of .data left to read */
int bytesread; /* Total number of bytes read */
bvdbg("Read %d bytes from offset %d\n", readsize, offset);
/* Seek to the position in the object file where the initialized
* data is saved.
*/
bytesread = 0;
bufptr = buffer;
bytesleft = readsize;
do
{
rpos = lseek(loadinfo->filfd, offset, SEEK_SET);
if (rpos != offset)
{
bdbg("Failed to seek to position %d: %d\n", offset, errno);
return -errno;
}
/* Read the file data at offset into the user buffer */
nbytes = read(loadinfo->filfd, bufptr, bytesleft);
if (nbytes < 0)
{
if (errno != EINTR)
{
bdbg("Read of .data failed: %d\n", errno);
return -errno;
}
}
else if (nbytes == 0)
{
bdbg("Unexpected end of file\n");
return -ENODATA;
}
else
{
bytesread += nbytes;
bytesleft -= nbytes;
bufptr += nbytes;
offset += nbytes;
}
}
while (bytesread < readsize);
elf_dumpreaddata(buffer, readsize);
return OK;
}

85
binfmt/libelf/libelf_uninit.c Normal file
View File

@ -0,0 +1,85 @@
/****************************************************************************
* binfmt/libelf/libelf_uninit.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <unistd.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_uninit
*
* Description:
* Releases any resources committed by elf_init(). This essentially
* undoes the actions of elf_init.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_uninit(struct elf_loadinfo_s *loadinfo)
{
if (loadinfo->filfd >= 0)
{
close(loadinfo->filfd);
}
return OK;
}

97
binfmt/libelf/libelf_unload.c Normal file
View File

@ -0,0 +1,97 @@
/****************************************************************************
* binfmt/libelf/libelf_unload.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <debug.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_unload
*
* Description:
* This function unloads the object from memory. This essentially
* undoes the actions of elf_load.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_unload(struct elf_loadinfo_s *loadinfo)
{
/* Reset the contents of the info structure. */
/* Release the memory segments */
if (loadinfo->ispace)
{
kfree((void*)loadinfo->ispace, loadinfo->isize);
loadinfo->ispace = 0;
}
if (loadinfo->dspace)
{
kfree((void*)loadinfo->dspace);
loadinfo->dspace = 0;
}
return OK;
}

88
binfmt/libelf/libelf_verify.c Normal file
View File

@ -0,0 +1,88 @@
/****************************************************************************
* binfmt/libelf/elf_verify.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <string.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/elf.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_verifyheader
*
* Description:
* Given the header from a possible ELF executable, verify that it
* is an ELF executable.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_verifyheader(const struct elf_hdr_s *header)
{
if (!header)
{
bdbg("NULL ELF header!");
return -ENOEXEC;
}
#warning "Missing Logic"
return -ENOSYS;
}

5
binfmt/libnxflat/Kconfig
View File

@ -2,3 +2,8 @@
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config NXFLAT_DUMPBUFFER
bool "Dump NXFLAT buffers"
default n
depends on DEBUG && DEBUG_VERBOSE

24
binfmt/libnxflat/Make.defs
View File

@ -1,5 +1,5 @@
############################################################################
# nxflat/lib/Make.defs
# binfmt/libnxflat/Make.defs
#
# Copyright (C) 2009 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
@ -33,7 +33,21 @@
#
############################################################################
LIBNXFLAT_ASRCS =
LIBNXFLAT_CSRCS = libnxflat_init.c libnxflat_uninit.c libnxflat_load.c \
libnxflat_unload.c libnxflat_verify.c libnxflat_read.c \
libnxflat_bind.c
ifeq ($(CONFIG_NXFLAT),y)
# NXFLAT application interfaces
BINFMT_CSRCS += nxflat.c
# NXFLAT library
BINFMT_CSRCS = libnxflat_init.c libnxflat_uninit.c libnxflat_load.c \
libnxflat_unload.c libnxflat_verify.c libnxflat_read.c \
libnxflat_bind.c
# Hook the libnxflat subdirectory into the build
VPATH += libnxflat
SUBDIRS += libnxflat
endif

46
binfmt/libnxflat/libnxflat_bind.c
View File

@ -263,7 +263,6 @@ static inline int nxflat_gotrelocs(FAR struct nxflat_loadinfo_s *loadinfo)
result = OK;
switch (NXFLAT_RELOC_TYPE(reloc.r_info))
{
/* NXFLAT_RELOC_TYPE_REL32I Meaning: Object file contains a 32-bit offset
* into I-Space at the offset.
* Fixup: Add mapped I-Space address to the offset.
@ -329,6 +328,7 @@ static inline int nxflat_gotrelocs(FAR struct nxflat_loadinfo_s *loadinfo)
nxflat_dumpbuffer("GOT", (FAR const uint8_t*)relocs, nrelocs * sizeof(struct nxflat_reloc_s));
}
#endif
return ret;
}
@ -388,7 +388,7 @@ static inline int nxflat_bindimports(FAR struct nxflat_loadinfo_s *loadinfo,
offset < loadinfo->isize + loadinfo->dsize);
imports = (struct nxflat_import_s*)
(offset - loadinfo->isize + loadinfo->dspace->region);
(offset - loadinfo->isize + loadinfo->dspace->region);
/* Now, traverse the list of imported symbols and attempt to bind
* each symbol to the value exported by from the exported symbol
@ -396,41 +396,41 @@ static inline int nxflat_bindimports(FAR struct nxflat_loadinfo_s *loadinfo,
*/
for (i = 0; i < nimports; i++)
{
bvdbg("Import[%d] (%08p) offset: %08x func: %08x\n",
i, &imports[i], imports[i].i_funcname, imports[i].i_funcaddress);
{
bvdbg("Import[%d] (%08p) offset: %08x func: %08x\n",
i, &imports[i], imports[i].i_funcname, imports[i].i_funcaddress);
/* Get a pointer to the imported symbol name. The name itself
* lies in the TEXT segment. But the reference to the name
* lies in DATA segment. Therefore, the name reference should
* have been relocated when the module was loaded.
*/
/* Get a pointer to the imported symbol name. The name itself
* lies in the TEXT segment. But the reference to the name
* lies in DATA segment. Therefore, the name reference should
* have been relocated when the module was loaded.
*/
offset = imports[i].i_funcname;
DEBUGASSERT(offset < loadinfo->isize);
symname = (char*)(offset + loadinfo->ispace + sizeof(struct nxflat_hdr_s));
symname = (char*)(offset + loadinfo->ispace + sizeof(struct nxflat_hdr_s));
/* Find the exported symbol value for this this symbol name. */
/* Find the exported symbol value for this this symbol name. */
#ifdef CONFIG_SYMTAB_ORDEREDBYNAME
symbol = symtab_findorderedbyname(exports, symname, nexports);
#else
symbol = symtab_findbyname(exports, symname, nexports);
#endif
if (!symbol)
{
bdbg("Exported symbol \"%s\" not found\n", symname);
if (!symbol)
{
bdbg("Exported symbol \"%s\" not found\n", symname);
return -ENOENT;
}
}
/* And put this into the module's import structure. */
/* And put this into the module's import structure. */
imports[i].i_funcaddress = (uint32_t)symbol->sym_value;
imports[i].i_funcaddress = (uint32_t)symbol->sym_value;
bvdbg("Bound import[%d] (%08p) to export '%s' (%08x)\n",
i, &imports[i], symname, imports[i].i_funcaddress);
}
bvdbg("Bound import[%d] (%08p) to export '%s' (%08x)\n",
i, &imports[i], symname, imports[i].i_funcaddress);
}
}
/* Dump the relocation import table */
@ -441,6 +441,7 @@ static inline int nxflat_bindimports(FAR struct nxflat_loadinfo_s *loadinfo,
nxflat_dumpbuffer("Imports", (FAR const uint8_t*)imports, nimports * sizeof(struct nxflat_import_s));
}
#endif
return OK;
}
@ -484,9 +485,10 @@ int nxflat_bind(FAR struct nxflat_loadinfo_s *loadinfo,
*/
memset((void*)(loadinfo->dspace->region + loadinfo->datasize),
0, loadinfo->bsssize);
0, loadinfo->bsssize);
}
}
return ret;
}

4
binfmt/libnxflat/libnxflat_uninit.c
View File

@ -56,10 +56,6 @@
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxflat_swap32
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

6
binfmt/libnxflat/libnxflat_verify.c
View File

@ -91,10 +91,10 @@ int nxflat_verifyheader(const struct nxflat_hdr_s *header)
if (strncmp(header->h_magic, NXFLAT_MAGIC, 4) != 0)
{
bdbg("Unrecognized magic=\"%c%c%c%c\"\n",
header->h_magic[0], header->h_magic[1],
header->h_magic[2], header->h_magic[3]);
header->h_magic[0], header->h_magic[1],
header->h_magic[2], header->h_magic[3]);
return -ENOEXEC;
}
return OK;
}

6
configs/lpcxpresso-lpc1768/dhcpd/Make.defs
View File

@ -1,7 +1,7 @@
############################################################################
# configs/lpcxpresso-lpc1768/dhcpd/Make.defs
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -86,14 +86,14 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/dhcpd/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/dhcpd/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
endif
CC = $(CROSSDEV)gcc

6
configs/lpcxpresso-lpc1768/nsh/Make.defs
View File

@ -1,7 +1,7 @@
############################################################################
# configs/lpcxpresso-lpc1768/nsh/Make.defs
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -86,14 +86,14 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
endif
CC = $(CROSSDEV)gcc

110
configs/lpcxpresso-lpc1768/nsh/ld.script
View File

@ -1,110 +0,0 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/nsh/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/* The LPC1768 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 64Kb of total SRAM: 32Kb of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of AHB SRAM in two banks of 16Kb beginning at addresses
* 0x20070000 and 0x20080000. Here we assume that .data and .bss will all fit
* into the 32Kb CPU SRAM address range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.ARM.extab : {
*(.ARM.extab*)
} >sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} >sram
__exidx_end = ABSOLUTE(.);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

6
configs/lpcxpresso-lpc1768/nx/Make.defs
View File

@ -1,7 +1,7 @@
############################################################################
# configs/lpcxpresso-lpc1768/nx/Make.defs
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -86,14 +86,14 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nx/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nx/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
endif
CC = $(CROSSDEV)gcc

110
configs/lpcxpresso-lpc1768/nx/ld.script
View File

@ -1,110 +0,0 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/nx/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/* The LPC1768 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 64Kb of total SRAM: 32Kb of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of AHB SRAM in two banks of 16Kb beginning at addresses
* 0x20070000 and 0x20080000. Here we assume that .data and .bss will all fit
* into the 32Kb CPU SRAM address range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.ARM.extab : {
*(.ARM.extab*)
} >sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} >sram
__exidx_end = ABSOLUTE(.);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

6
configs/lpcxpresso-lpc1768/ostest/Make.defs
View File

@ -1,7 +1,7 @@
############################################################################
# configs/lpcxpresso-lpc1768/ostest/Make.defs
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -86,14 +86,14 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
endif
CC = $(CROSSDEV)gcc

110
configs/lpcxpresso-lpc1768/ostest/ld.script
View File

@ -1,110 +0,0 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/ostest/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/* The LPC1768 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 64Kb of total SRAM: 32Kb of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of AHB SRAM in two banks of 16Kb beginning at addresses
* 0x20070000 and 0x20080000. Here we assume that .data and .bss will all fit
* into the 32Kb CPU SRAM address range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.ARM.extab : {
*(.ARM.extab*)
} >sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} >sram
__exidx_end = ABSOLUTE(.);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

7
configs/lpcxpresso-lpc1768/dhcpd/ld.script → configs/lpcxpresso-lpc1768/scripts/ld.script
View File

@ -1,7 +1,7 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/dhcpd/ld.script
* configs/lpcxpresso-lpc1768/scripts/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -94,7 +94,8 @@ SECTIONS
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
/* Stabs debugging sections */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }

4
configs/lpcxpresso-lpc1768/thttpd/Make.defs
View File

@ -86,7 +86,7 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/thttpd/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
else
@ -94,7 +94,7 @@ else
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/thttpd/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
NXFLATLDSCRIPT = -T"$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld"
endif

110
configs/lpcxpresso-lpc1768/thttpd/ld.script
View File

@ -1,110 +0,0 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/thttpd/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/* The LPC1768 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 64Kb of total SRAM: 32Kb of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of AHB SRAM in two banks of 16Kb beginning at addresses
* 0x20070000 and 0x20080000. Here we assume that .data and .bss will all fit
* into the 32Kb CPU SRAM address range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.ARM.extab : {
*(.ARM.extab*)
} >sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} >sram
__exidx_end = ABSOLUTE(.);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

6
configs/lpcxpresso-lpc1768/usbstorage/Make.defs
View File

@ -1,7 +1,7 @@
############################################################################
# configs/lpcxpresso-lpc1768/usbstorage/Make.defs
#
# Copyright (C) 2011 Gregory Nutt. All rights reserved.
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
@ -86,14 +86,14 @@ ifeq ($(WINTOOL),y)
MKDEP = $(TOPDIR)/tools/mknulldeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbstorage/ld.script}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
MAXOPTIMIZATION = -O2
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbstorage/ld.script
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script
endif
CC = $(CROSSDEV)gcc

110
configs/lpcxpresso-lpc1768/usbstorage/ld.script
View File

@ -1,110 +0,0 @@
/****************************************************************************
* configs/lpcxpresso-lpc1768/usbstorage/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
/* The LPC1768 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 64Kb of total SRAM: 32Kb of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of AHB SRAM in two banks of 16Kb beginning at addresses
* 0x20070000 and 0x20080000. Here we assume that .data and .bss will all fit
* into the 32Kb CPU SRAM address range.
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 512K
sram (rwx) : ORIGIN = 0x10000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
.ARM.extab : {
*(.ARM.extab*)
} >sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} >sram
__exidx_end = ABSOLUTE(.);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

53
include/elf.h Normal file
View File

@ -0,0 +1,53 @@
/****************************************************************************
* include/elf.h
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
#ifndef __INCLUDE_ELF_H
#define __INCLUDE_ELF_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
#endif /* __INCLUDE_ELF_H */

259
include/nuttx/elf.h Normal file
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@ -0,0 +1,259 @@
/****************************************************************************
* include/nuttx/elf.h
*
* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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
* COPYRIGHT OWNER OR 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.
*
****************************************************************************/
#ifndef __INCLUDE_NUTTX_ELF_H
#define __INCLUDE_NUTTX_ELF_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <elf.h>
#include <nuttx/sched.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/* This struct provides a desciption of the currently loaded instantiation
* of an ELF binary.
*/
struct elf_loadinfo_s
{
/* Instruction Space (ISpace): This region contains the ELF file header
* plus everything from the text section. Ideally, will have only one mmap'ed
* text section instance in the system for each module.
*/
uint32_t ispace; /* Address where hdr/text is loaded */
uint32_t entryoffs; /* Offset from ispace to entry point */
uint32_t isize; /* Size of ispace. */
/* Data Space (DSpace): This region contains all information that in referenced
* as data (other than the stack which is separately allocated). There will be
* a unique instance of DSpace (and stack) for each instance of a process.
*/
FAR struct dspace_s *dspace; /* Allocated D-Space (data/bss/etc) */
uint32_t datasize; /* Size of data segment in dspace */
uint32_t bsssize; /* Size of bss segment in dspace */
uint32_t stacksize; /* Size of stack (not allocated) */
uint32_t dsize; /* Size of dspace (may be large than parts) */
/* This is temporary memory where relocation records will be loaded. */
uint32_t relocstart; /* Start of array of struct flat_reloc */
uint16_t reloccount; /* Number of elements in reloc array */
/* File descriptors */
int filfd; /* Descriptor for the file being loaded */
/* This is a copy of the ELF header (still in network order) */
FAR struct elf_hdr_s header;
};
/****************************************************************************
* Public Functions
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/****************************************************************************
* These are APIs exported by libelf (and may be used outside of NuttX):
****************************************************************************/
/****************************************************************************
* Name: elf_verifyheader
*
* Description:
* Given the header from a possible ELF executable, verify that it is
* an ELF executable.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_verifyheader(FAR const struct elf_hdr_s *header);
/****************************************************************************
* Name: elf_init
*
* Description:
* This function is called to configure the library to process an ELF
* program binary.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_init(FAR const char *filename,
FAR struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* Name: elf_uninit
*
* Description:
* Releases any resources committed by elf_init(). This essentially
* undoes the actions of elf_init.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_uninit(FAR struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* Name: elf_load
*
* Description:
* Loads the binary into memory, allocating memory, performing relocations
* and inializing the data and bss segments.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_load(FAR struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* Name: elf_read
*
* Description:
* Read 'readsize' bytes from the object file at 'offset'
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_read(FAR struct elf_loadinfo_s *loadinfo, FAR char *buffer,
FAR int readsize, int offset);
/****************************************************************************
* Name: elf_bind
*
* Description:
* Bind the imported symbol names in the loaded module described by
* 'loadinfo' using the exported symbol values provided by 'symtab'.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
struct symtab_s;
EXTERN int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
FAR const struct symtab_s *exports, int nexports);
/****************************************************************************
* Name: elf_unload
*
* Description:
* This function unloads the object from memory. This essentially
* undoes the actions of elf_load.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_unload(struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* These are APIs used internally only by NuttX:
****************************************************************************/
/****************************************************************************
* Name: elf_initialize
*
* Description:
* ELF support is built unconditionally. However, it order to
* use this binary format, this function must be called during system
* format in order to register the ELF binary format.
*
* Returned Value:
* This is a NuttX internal function so it follows the convention that
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
EXTERN int elf_initialize(void);
/****************************************************************************
* Name: elf_uninitialize
*
* Description:
* Unregister the ELF binary loader
*
* Returned Value:
* None
*
****************************************************************************/
EXTERN void elf_uninitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_NUTTX_ELF_H */

38
include/nuttx/nxflat.h
View File

@ -1,7 +1,7 @@
/****************************************************************************
* include/nuttx/nxflat.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -110,22 +110,22 @@ extern "C" {
* These are APIs exported by libnxflat (and may be used outside of NuttX):
****************************************************************************/
/***********************************************************************
/****************************************************************************
* Name: nxflat_verifyheader
*
* Description:
* Given the header from a possible NXFLAT executable, verify that it
* is an NXFLAT executable.
* Given the header from a possible NXFLAT executable, verify that it is
* an NXFLAT executable.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_verifyheader(const struct nxflat_hdr_s *header);
/***********************************************************************
/****************************************************************************
* Name: nxflat_init
*
* Description:
@ -136,12 +136,12 @@ EXTERN int nxflat_verifyheader(const struct nxflat_hdr_s *header);
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_init(const char *filename,
struct nxflat_loadinfo_s *loadinfo);
/***********************************************************************
/****************************************************************************
* Name: nxflat_uninit
*
* Description:
@ -152,11 +152,11 @@ EXTERN int nxflat_init(const char *filename,
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_uninit(struct nxflat_loadinfo_s *loadinfo);
/***********************************************************************
/****************************************************************************
* Name: nxflat_load
*
* Description:
@ -170,11 +170,11 @@ EXTERN int nxflat_uninit(struct nxflat_loadinfo_s *loadinfo);
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_load(struct nxflat_loadinfo_s *loadinfo);
/***********************************************************************
/****************************************************************************
* Name: nxflat_read
*
* Description:
@ -184,12 +184,12 @@ EXTERN int nxflat_load(struct nxflat_loadinfo_s *loadinfo);
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_read(struct nxflat_loadinfo_s *loadinfo, char *buffer,
int readsize, int offset);
/***********************************************************************
/****************************************************************************
* Name: nxflat_bind
*
* Description:
@ -202,13 +202,13 @@ EXTERN int nxflat_read(struct nxflat_loadinfo_s *loadinfo, char *buffer,
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
struct symtab_s;
EXTERN int nxflat_bind(FAR struct nxflat_loadinfo_s *loadinfo,
FAR const struct symtab_s *exports, int nexports);
/***********************************************************************
/****************************************************************************
* Name: nxflat_unload
*
* Description:
@ -219,14 +219,14 @@ EXTERN int nxflat_bind(FAR struct nxflat_loadinfo_s *loadinfo,
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_unload(struct nxflat_loadinfo_s *loadinfo);
/****************************************************************************
* These are APIs used internally only by NuttX:
****************************************************************************/
/***********************************************************************
/****************************************************************************
* Name: nxflat_initialize
*
* Description:
@ -239,7 +239,7 @@ EXTERN int nxflat_unload(struct nxflat_loadinfo_s *loadinfo);
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
***********************************************************************/
****************************************************************************/
EXTERN int nxflat_initialize(void);