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Finish implemention of ELF loader static constructor support. Still some issues. 

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5272 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-10-29 00:52:23 +00:00
parent 61c97b1ddc
commit 71fad980c5
21 changed files with 532 additions and 928 deletions
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2
apps/examples/README.txt
View File

@ -323,6 +323,8 @@ examples/elf
CELFFLAGS = $(CFLAGS) -mlong-calls
Similarly for C++ flags which must be provided in CXXELFFLAGS.
2. Your top-level nuttx/Make.defs file must alos include an approproate definition,
LDELFFLAGS, to generate a relocatable ELF object. With GNU LD, this should
include '-r' and '-e main' (or _main on some platforms).

8
apps/examples/elf/tests/Makefile
View File

@ -33,13 +33,15 @@
#
############################################################################
# Most of these do no build yet
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
include $(APPDIR)/Make.defs
ALL_SUBDIRS = errno hello hello++ longjmp mutex pthread signal task struct
ALL_SUBDIRS = errno hello helloxx longjmp mutex pthread signal task struct
BUILD_SUBDIRS = errno hello task struct
ifeq ($(CONFIG_HAVE_CXX),y)
BUILD_SUBDIRS += hello++
BUILD_SUBDIRS += helloxx
endif
ifeq ($(CONFIG_EXAMPLES_ELF_LONGJMP),y)

116
apps/examples/elf/tests/hello++/Makefile
View File

@ -1,116 +0,0 @@
############################################################################
# examples/elf/tests/hello/Makefile
#
# 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.
#
############################################################################
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
BIN1 = hello++1
BIN2 = hello++2
BIN3 = hello++3
#BIN4 = hello++4
ALL_BIN = $(BIN1) $(BIN2) $(BIN3) $(BIN4)
SRCS1 = $(BIN1).c
OBJS1 = $(SRCS1:.c=.o)
SRCS2 = $(BIN2).c
OBJS2 = $(SRCS2:.c=.o)
SRCS3 = $(BIN3).c
OBJS3 = $(SRCS3:.c=.o)
#SRCS4 = $(BIN4).c
#OBJS4 = $(SRCS4:.c=.o)
SRCS = $(SRCS1) $(SRCS2) $(SRCS3) $(SRCS4)
OBJS = $(OBJS1) $(OBJS2) $(OBJS3) $(OBJS4)
LIBSTDC_STUBS_DIR = $(TOPDIR)/libxx
LIBSTDC_STUBS_LIB = $(LIBSTDC_STUBS_DIR)/liblibxx.a
all: $(BIN1) $(BIN2) $(BIN3) $(BIN4)
$(OBJS): %.o: %.cpp
@echo "CC: $<"
@$(CXX) -c $(CXXFLAGS) $< -o $@
# This contains libstdc++ stubs to that you can build C++ code
# without actually having libstdc++
$(LIBSTDC_STUBS_LIB):
@$(MAKE) -C $(LIBSTDC_STUBS_DIR) TOPDIR=$(TOPDIR)
# BIN1 and BIN2 link just like C code because they contain no
# static constructors. BIN1 is equivalent to a C hello world;
# BIN2 contains a class that implements hello world, but it is
# not statically initialized.
$(BIN1): $(OBJS1)
@echo "LD: $<"
@$(LD) $(LDELFFLAGS) -o $@ $^
$(BIN2): $(OBJS2)
@echo "LD: $<"
@$(LD) $(LDELFFLAGS) -o $@ $^
# BIN3 is equivalent to BIN2 except that is uses static initializers
$(BIN3): $(OBJS3)
@echo "LD: $<"
@$(LD) $(LDELFFLAGS) -o $@ $^
# BIN4 is similar to BIN3 except that it uses the streams code from libstdc++
#
# NOTE: libstdc++ is not available for NuttX as of this writing
#
#$(BIN4): $(OBJS4)
# @echo "LD: $<"
# @$(LD) $(LDELFFLAGS) -o $@ $^
clean:
@rm -f $(ALL_BIN) *.o *~ .*.swp core
install: $(ALL_BIN)
@install -D $(BIN1) $(ROMFS_DIR)/$(BIN1)
@install -D $(BIN2) $(ROMFS_DIR)/$(BIN2)
@install -D $(BIN3) $(ROMFS_DIR)/$(BIN3)
# @install -D $(BIN4) $(ROMFS_DIR)/$(BIN4)

60
apps/examples/elf/tests/hello++/hello++1.cpp
View File

@ -1,60 +0,0 @@
/////////////////////////////////////////////////////////////////////////////
// examples/elf/tests/hello++/hello++1.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.
//
/////////////////////////////////////////////////////////////////////////////
//
// This is an trivial version of "Hello, World" program. It illustrates
// that we can build C programs using the C++ compiler.
//
// - Building a C++ program to use the C library
// - No class creation
// - NO Streams
// - NO Static constructor and destructors
//
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Included Files
/////////////////////////////////////////////////////////////////////////////
#include <cstdio>
/////////////////////////////////////////////////////////////////////////////
// Public Functions
/////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
printf("Hello, World!\n");
return 0;
}

123
apps/examples/elf/tests/hello++/hello++2.cpp
View File

@ -1,123 +0,0 @@
/////////////////////////////////////////////////////////////////////////////
// examples/elf/tests/hello++/hello++2.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.
//
/////////////////////////////////////////////////////////////////////////////
//
// This is an another trivial version of "Hello, World" design. It illustrates
//
// - Building a C++ program to use the C library
// - Basic class creation
// - NO Streams
// - NO Static constructor and destructors
//
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Included Files
/////////////////////////////////////////////////////////////////////////////
#include <cstdio>
/////////////////////////////////////////////////////////////////////////////
// Classes
/////////////////////////////////////////////////////////////////////////////
class CThingSayer
{
const char *szWhatToSay;
public:
CThingSayer(void)
{
printf("CThingSayer::CThingSayer: I am!\n");
szWhatToSay = (const char*)NULL;
}
~CThingSayer(void)
{
printf("CThingSayer::~CThingSayer: I cease to be\n");
if (szWhatToSay)
{
printf("CThingSayer::~CThingSayer: I will never say '%s' again\n",
szWhatToSay);
}
szWhatToSay = (const char*)NULL;
}
void Initialize(const char *czSayThis)
{
printf("CThingSayer::Initialize: When told, I will say '%s'\n",
czSayThis);
szWhatToSay = czSayThis;
}
void SayThing(void)
{
printf("CThingSayer::SayThing: I am now saying '%s'\n", szWhatToSay);
}
};
/////////////////////////////////////////////////////////////////////////////
// Public Functions
/////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
CThingSayer *MyThingSayer;
printf("main: Started. Creating MyThingSayer\n");
// Create an instance of the CThingSayer class
// We should see the message from constructor, CThingSayer::CThingSayer(),
MyThingSayer = new CThingSayer;
printf("main: Created MyThingSayer=0x%08lx\n", (long)MyThingSayer);
// Tell MyThingSayer that "Hello, World!" is the string to be said
printf("main: Calling MyThingSayer->Initialize\n");;
MyThingSayer->Initialize("Hello, World!");
// Tell MyThingSayer to say the thing we told it to say
printf("main: Calling MyThingSayer->SayThing\n");;
MyThingSayer->SayThing();
// We should see the message from the destructor,
// CThingSayer::~CThingSayer(), AFTER we see the following
printf("main: Destroying MyThingSayer\n");
delete MyThingSayer;
printf("main: Returning\n");;
return 0;
}

132
apps/examples/elf/tests/hello++/hello++3.cpp
View File

@ -1,132 +0,0 @@
/////////////////////////////////////////////////////////////////////////////
// examples/elf/tests/hello++/hello++3.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.
//
/////////////////////////////////////////////////////////////////////////////
//
// This is an another trivial version of "Hello, World" design. It illustrates
//
// - Building a C++ program to use the C library and stdio
// - Basic class creation with virtual methods.
// - Static constructor and destructors (in main program only)
// - NO Streams
//
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Included Files
/////////////////////////////////////////////////////////////////////////////
#include <cstdio>
/////////////////////////////////////////////////////////////////////////////
// Classes
/////////////////////////////////////////////////////////////////////////////
class CThingSayer
{
const char *szWhatToSay;
public:
CThingSayer(void);
virtual ~CThingSayer(void);
virtual void Initialize(const char *czSayThis);
virtual void SayThing(void);
};
// A static instance of the CThingSayer class. This instance MUST
// be constructed by the system BEFORE the program is started at
// main() and must be destructed by the system AFTER the main()
// returns to the system
static CThingSayer MyThingSayer;
// These are implementations of the methods of the CThingSayer class
CThingSayer::CThingSayer(void)
{
printf("CThingSayer::CThingSayer: I am!\n");
szWhatToSay = (const char*)NULL;
}
CThingSayer::~CThingSayer(void)
{
printf("CThingSayer::~CThingSayer: I cease to be\n");
if (szWhatToSay)
{
printf("CThingSayer::~CThingSayer: I will never say '%s' again\n",
szWhatToSay);
}
szWhatToSay = (const char*)NULL;
}
void CThingSayer::Initialize(const char *czSayThis)
{
printf("CThingSayer::Initialize: When told, I will say '%s'\n",
czSayThis);
szWhatToSay = czSayThis;
}
void CThingSayer::SayThing(void)
{
printf("CThingSayer::SayThing: I am now saying '%s'\n", szWhatToSay);
}
/////////////////////////////////////////////////////////////////////////////
// Public Functions
/////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
// We should see the message from constructor, CThingSayer::CThingSayer(),
// BEFORE we see the following messages. That is proof that the
// C++ static initializer is working
printf("main: Started. MyThingSayer should already exist\n");
// Tell MyThingSayer that "Hello, World!" is the string to be said
printf("main: Calling MyThingSayer.Initialize\n");;
MyThingSayer.Initialize("Hello, World!");
// Tell MyThingSayer to say the thing we told it to say
printf("main: Calling MyThingSayer.SayThing\n");;
MyThingSayer.SayThing();
// We are finished, return. We should see the message from the
// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
// message. That is proof that the C++ static destructor logic
// is working
printf("main: Returning. MyThingSayer should be destroyed\n");;
return 0;
}

150
apps/examples/elf/tests/hello++/hello++4.cpp
View File

@ -1,150 +0,0 @@
/////////////////////////////////////////////////////////////////////////////
// examples/elf/tests/hello++/hello++4.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.
//
/////////////////////////////////////////////////////////////////////////////
//
// This is an excessively complex version of "Hello, World" design to
// illustrate some basic properties of C++:
//
// - Building a C++ program
// - Streams / statically linked libstdc++
// - Static constructor and destructors (in main program only)
//
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// Included Files
/////////////////////////////////////////////////////////////////////////////
#include <cstdio>
#include <iostream>
#ifndef NULL
# define NULL ((void*)0L)
#endif
/////////////////////////////////////////////////////////////////////////////
// Classes
/////////////////////////////////////////////////////////////////////////////
using namespace std;
// A hello world sayer class
class CThingSayer
{
const char *szWhatToSay;
public:
CThingSayer(void);
virtual ~CThingSayer(void);
virtual void Initialize(const char *czSayThis);
virtual void SayThing(void);
};
/////////////////////////////////////////////////////////////////////////////
// Private Data
/////////////////////////////////////////////////////////////////////////////
// A static instance of the CThingSayer class. This instance MUST
// be constructed by the system BEFORE the program is started at
// main() and must be destructed by the system AFTER the main()
// returns to the system
static CThingSayer MyThingSayer;
/////////////////////////////////////////////////////////////////////////////
// Method Implementations
/////////////////////////////////////////////////////////////////////////////
// These are implementations of the methods of the CThingSayer class
CThingSayer::CThingSayer(void)
{
cout << "CThingSayer::CThingSayer: I am!" << endl;
szWhatToSay = (const char*)NULL;
}
CThingSayer::~CThingSayer(void)
{
cout << "CThingSayer::~CThingSayer: I cease to be" << endl;
if (szWhatToSay)
{
cout << "CThingSayer::~CThingSayer: I will never say '"
<< szWhatToSay << "' again" << endl;
}
szWhatToSay = (const char*)NULL;
}
void CThingSayer::Initialize(const char *czSayThis)
{
cout << "CThingSayer::Initialize: When told, I will say '"
<< czSayThis << "'" << endl;
szWhatToSay = czSayThis;
}
void CThingSayer::SayThing(void)
{
cout << "CThingSayer::SayThing: I am now saying '"
<< szWhatToSay << "'" << endl;
}
/////////////////////////////////////////////////////////////////////////////
// Public Functions
/////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
// We should see the message from constructor, CThingSayer::CThingSayer(),
// BEFORE we see the following messages. That is proof that the
// C++ static initializer is working
cout << "main: Started" << endl;
// Tell MyThingSayer that "Hello, World!" is the string to be said
cout << "main: Calling MyThingSayer.Initialize" << endl;
MyThingSayer.Initialize("Hello, World!");
// Tell MyThingSayer to say the thing we told it to say
cout << "main: Calling MyThingSayer.SayThing" << endl;
MyThingSayer.SayThing();
// We are finished, return. We should see the message from the
// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
// message. That is proof that the C++ static destructor logic
// is working
cout << "main: Returning" << endl;
return 0;
}

2
nuttx/arch/arm/src/armv7-m/up_elf.c
View File

@ -282,7 +282,7 @@ int arch_relocate(FAR const Elf32_Rel *rel, FAR const Elf32_Sym *sym,
if (offset <= (int32_t)0xff000000 || offset >= (int32_t)0x01000000)
{
bdbg(" ERROR: JUMP24 [%d] relocation out of range, offset=%08lx\n",
bdbg(" ERROR: JUMP24 [%d] relocation out of range, branch taget=%08lx\n",
ELF32_R_TYPE(rel->r_info), offset);
return -EINVAL;

1
nuttx/binfmt/elf.c
View File

@ -116,6 +116,7 @@ static void elf_dumploadinfo(FAR struct elf_loadinfo_s *loadinfo)
bdbg(" filelen: %ld\n", (long)loadinfo->filelen);
#ifdef CONFIG_ELF_CONSTRUCTORS
bdbg(" ctors: %08lx\n", (long)loadinfo->ctors);
bdbg(" nctors: %d\n", loadinfo->nctors);
#endif
bdbg(" filfd: %d\n", loadinfo->filfd);
bdbg(" symtabidx: %d\n", loadinfo->symtabidx);

2
nuttx/binfmt/libelf/Make.defs
View File

@ -43,7 +43,7 @@ BINFMT_CSRCS += elf.c
BINFMT_CSRCS += libelf_init.c libelf_uninit.c libelf_load.c \
libelf_unload.c libelf_verify.c libelf_read.c \
libelf_bind.c libelf_symbols.c
libelf_bind.c libelf_symbols.c libelf_iobuffer.c
ifeq ($(CONFIG_ELF_CONSTRUCTORS),y)
BINFMT_CSRCS += libelf_ctors.c

45
nuttx/binfmt/libelf/libelf.h
View File

@ -141,6 +141,49 @@ int elf_readsym(FAR struct elf_loadinfo_s *loadinfo, int index,
int elf_symvalue(FAR struct elf_loadinfo_s *loadinfo, FAR Elf32_Sym *sym,
FAR const struct symtab_s *exports, int nexports);
/****************************************************************************
* Name: elf_freebuffers
*
* Description:
* Release all working buffers.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_freebuffers(FAR struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* Name: elf_allocbuffer
*
* Description:
* Perform the initial allocation of the I/O buffer, if it has not already
* been allocated.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_allocbuffer(FAR struct elf_loadinfo_s *loadinfo);
/****************************************************************************
* Name: elf_reallocbuffer
*
* Description:
* Increase the size of I/O buffer by the specified buffer increment.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_reallocbuffer(FAR struct elf_loadinfo_s *loadinfo, size_t increment);
/****************************************************************************
* Name: elf_findctors
*
@ -157,7 +200,7 @@ int elf_symvalue(FAR struct elf_loadinfo_s *loadinfo, FAR Elf32_Sym *sym,
****************************************************************************/
#ifdef CONFIG_ELF_CONSTRUCTORS
int elf_findctors(FAR struct elf_loadinfo_s *loadinfo);
int elf_loadctors(FAR struct elf_loadinfo_s *loadinfo);
#endif
/****************************************************************************

15
nuttx/binfmt/libelf/libelf_bind.c
View File

@ -46,7 +46,6 @@
#include <assert.h>
#include <debug.h>
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/elf.h>
#include <nuttx/binfmt/symtab.h>
@ -247,17 +246,16 @@ int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
return ret;
}
/* Allocate an I/O buffer. This buffer is used only by elf_symname() to
/* Allocate an I/O buffer. This buffer is used by elf_symname() to
* accumulate the variable length symbol name.
*/
loadinfo->iobuffer = (FAR uint8_t *)kmalloc(CONFIG_ELF_BUFFERSIZE);
if (!loadinfo->iobuffer)
ret = elf_allocbuffer(loadinfo);
if (ret < 0)
{
bdbg("Failed to allocate an I/O buffer\n");
bdbg("elf_allocbuffer failed: %d\n", ret);
return -ENOMEM;
}
loadinfo->buflen = CONFIG_ELF_BUFFERSIZE;
/* Process relocations in every allocated section */
@ -303,11 +301,6 @@ int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
arch_flushicache((FAR void*)loadinfo->alloc, loadinfo->allocsize);
#endif
/* Free the I/O buffer */
kfree(loadinfo->iobuffer);
loadinfo->iobuffer = NULL;
loadinfo->buflen = 0;
return ret;
}

274
nuttx/binfmt/libelf/libelf_ctors.c
View File

@ -39,11 +39,15 @@
#include <nuttx/config.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/elf.h>
#include "libelf"
#include "libelf.h"
#ifdef CONFIG_ELF_CONSTRUCTORS
@ -55,8 +59,6 @@
* Private Types
****************************************************************************/
typedef FAR void (*ctor_t)(void);
/****************************************************************************
* Private Constant Data
****************************************************************************/
@ -66,9 +68,111 @@ typedef FAR void (*ctor_t)(void);
****************************************************************************/
/****************************************************************************
* Public Functions
* Name: elf_sectname
*
* Description:
* Get the symbol name in loadinfo->iobuffer[].
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
static inline int elf_sectname(FAR struct elf_loadinfo_s *loadinfo,
FAR const Elf32_Shdr *shdr)
{
FAR Elf32_Shdr *shstr;
FAR uint8_t *buffer;
off_t offset;
size_t readlen;
size_t bytesread;
int shstrndx;
int ret;
/* Get the section header table index of the entry associated with the
* section name string table. If the file has no section name string table,
* this member holds the value SH_UNDEF.
*/
shstrndx = loadinfo->ehdr.e_shstrndx;
if (shstrndx == SHN_UNDEF)
{
bdbg("No section header string table\n");
return -EINVAL;
}
/* Get the section name string table section header */
shstr = &loadinfo->shdr[shstrndx];
/* Get the file offset to the string that is the name of the section. This
* is the sum of:
*
* shstr->sh_offset: The file offset to the first byte of the section
* header string table data.
* shdr->sh_name: The offset to the name of the section in the section
* name table
*/
offset = shstr->sh_offset + shdr->sh_name;
/* Loop until we get the entire section name into memory */
buffer = loadinfo->iobuffer;
bytesread = 0;
for (;;)
{
/* Get the number of bytes to read */
readlen = loadinfo->buflen - bytesread;
if (offset + readlen > loadinfo->filelen)
{
readlen = loadinfo->filelen - offset;
if (readlen <= 0)
{
bdbg("At end of file\n");
return -EINVAL;
}
}
/* Read that number of bytes into the array */
buffer = &loadinfo->iobuffer[bytesread];
ret = elf_read(loadinfo, buffer, readlen, offset);
if (ret < 0)
{
bdbg("Failed to read section name\n");
return ret;
}
bytesread += readlen;
/* Did we read the NUL terminator? */
if (memchr(buffer, '\0', readlen) != NULL)
{
/* Yes, the buffer contains a NUL terminator. */
return OK;
}
/* No.. then we have to read more */
ret = elf_reallocbuffer(loadinfo, CONFIG_ELF_BUFFERINCR);
if (ret < 0)
{
bdbg("elf_reallocbuffer failed: %d\n", ret);
return ret;
}
}
/* We will not get here */
return OK;
}
/****************************************************************************
* Name: elf_findctors
*
@ -79,27 +183,157 @@ typedef FAR void (*ctor_t)(void);
* loadinfo - Load state information
*
* Returned Value:
* On success, the index to the CTOR section is returned; A negated errno
* value is returned on failure.
*
****************************************************************************/
static inline int elf_findctors(FAR struct elf_loadinfo_s *loadinfo)
{
FAR const Elf32_Shdr *shdr;
int ret;
int i;
/* Search through the shdr[] array in loadinfo for a section named .ctors */
for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
{
/* Get the name of this section */
shdr = &loadinfo->shdr[i];
ret = elf_sectname(loadinfo, shdr);
if (ret < 0)
{
bdbg("elf_sectname failed: %d\n", ret);
return ret;
}
/* Check if the name of this section if ".ctors" */
bvdbg("%d. Comparing \"%s\" and .ctors\"\n", i, loadinfo->iobuffer);
if (strcmp(".ctors", (FAR const char *)loadinfo->iobuffer) == 0)
{
/* We found it... return the index */
return i;
}
}
/* We failed to find the .ctors sections. This may not be an error; maybe
* there are no static constructors.
*/
return -ENOENT;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_loadctors
*
* Description:
* Load points to static constructors into an in-memory array.
*
* Input Parameters:
* loadinfo - Load state information
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_findctors(FAR struct elf_loadinfo_s *loadinfo)
int elf_loadctors(FAR struct elf_loadinfo_s *loadinfo)
{
/* Search through the shdr[] array in loadinfo for a section named .ctors */
#warning "Missing logic"
FAR Elf32_Shdr *shdr;
size_t ctorsize;
int ctoridx;
int ret;
int i;
/* Get the address of the beginning of the constructros from the sh_addr
* field of the section. Save that in the ctors field of the loadinfo
* structure.
DEBUGASSERT(loadinfo->ctors == NULL);
/* Allocate an I/O buffer. This buffer is used by elf_sectname() to
* accumulate the variable length symbol name.
*/
#warning "Missing logic"
/* Get the number of constructors from the sh_size field of the section.
* Save that number in the nctors field of the loadinfo structure.
*/
#warning "Missing logic"
return -ENOSYS;
ret = elf_allocbuffer(loadinfo);
if (ret < 0)
{
bdbg("elf_allocbuffer failed: %d\n", ret);
return -ENOMEM;
}
/* Find the index to the section named ".ctors" */
ctoridx = elf_findctors(loadinfo);
if (ctoridx < 0)
{
/* This may not be a failure. -ENOENT indicates that the file has no
* static constructor section.
*/
bvdbg("elf_findctors failed: %d\n", ctoridx);
return ret == -ENOENT ? OK : ret;
}
/* Now we can get a pointer to the .ctor section in the section header
* table.
*/
shdr = &loadinfo->shdr[ctoridx];
/* Allocate memory to hold a copy of the .ctor section */
ctorsize = shdr->sh_size;
loadinfo->nctors = ctorsize / sizeof(elf_ctor_t);
bvdbg("ctoridx=%d ctorsize=%d sizeof(elf_ctor_t)=%d nctors=%d\n",
ctoridx, ctorsize, sizeof(elf_ctor_t), loadinfo->nctors);
/* Check if there are any constructors. It is not an error if there
* are none.
*/
if (loadinfo->nctors > 0)
{
/* Check an assumption that we made above */
DEBUGASSERT(shdr->sh_entsize == sizeof(elf_ctor_t));
loadinfo->ctors = (elf_ctor_t)kmalloc(ctorsize);
if (!loadinfo->ctors)
{
bdbg("Failed to allocate memory for .ctors\n");
return -ENOMEM;
}
/* Read the section header table into memory */
ret = elf_read(loadinfo, (FAR uint8_t*)loadinfo->ctors, ctorsize,
shdr->sh_offset);
if (ret < 0)
{
bdbg("Failed to allocate .ctors: %d\n", ret);
}
/* Fix up all of the .ctor addresses */
for (i = 0; i < loadinfo->nctors; i++)
{
FAR uintptr_t *ptr = (uintptr_t *)((FAR void *)(&loadinfo->ctors)[i]);
bvdbg("ctor %d: %08lx + %08lx = %08lx\n", i,
*ptr, loadinfo->alloc, *ptr + loadinfo->alloc);
*ptr += loadinfo->alloc;
}
}
return OK;
}
/****************************************************************************
@ -119,16 +353,20 @@ int elf_findctors(FAR struct elf_loadinfo_s *loadinfo)
int elf_doctors(FAR struct elf_loadinfo_s *loadinfo)
{
ctor_t ctor = (ctor_t)loadinfo->ctors;
elf_ctor_t ctor = (elf_ctor_t)loadinfo->ctors;
int i;
/* Execute each constructor */
for (i = 0; i < loadinfo->nctors; i++)
{
bvdbg("Calling ctor %d at %p\n", i, (FAR void *)ctor);
ctor();
ctor++;
}
return OK;
}
#endif /* CONFIG_ELF_CONSTRUCTORS
#endif /* CONFIG_ELF_CONSTRUCTORS */

136
nuttx/binfmt/libelf/libelf_iobuffer.c Normal file
View File

@ -0,0 +1,136 @@
/****************************************************************************
* binfmt/libelf/elf_iobuffer.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 <debug.h>
#include <errno.h>
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/elf.h>
#include "libelf.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: elf_allocbuffer
*
* Description:
* Perform the initial allocation of the I/O buffer, if it has not already
* been allocated.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_allocbuffer(FAR struct elf_loadinfo_s *loadinfo)
{
/* Has a buffer been allocated> */
if (!loadinfo->iobuffer)
{
/* No.. allocate one now */
loadinfo->iobuffer = (FAR uint8_t *)kmalloc(CONFIG_ELF_BUFFERSIZE);
if (!loadinfo->iobuffer)
{
bdbg("Failed to allocate an I/O buffer\n");
return -ENOMEM;
}
loadinfo->buflen = CONFIG_ELF_BUFFERSIZE;
}
return OK;
}
/****************************************************************************
* Name: elf_reallocbuffer
*
* Description:
* Increase the size of I/O buffer by the specified buffer increment.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_reallocbuffer(FAR struct elf_loadinfo_s *loadinfo, size_t increment)
{
FAR void *buffer;
size_t newsize;
/* Get the new size of the allocation */
newsize = loadinfo->buflen + increment;
/* And perform the reallocation */
buffer = krealloc((FAR void *)loadinfo->iobuffer, newsize);
if (!buffer)
{
bdbg("Failed to reallocate the I/O buffer\n");
return -ENOMEM;
}
/* Save the new buffer info */
loadinfo->iobuffer = buffer;
loadinfo->buflen = newsize;
return OK;
}

29
nuttx/binfmt/libelf/libelf_load.c
View File

@ -126,14 +126,8 @@ static inline int elf_loadshdrs(FAR struct elf_loadinfo_s *loadinfo)
if (ret < 0)
{
bdbg("Failed to read section header table: %d\n", ret);
goto errout_with_alloc;
}
return OK;
errout_with_alloc:
kfree(loadinfo->shdr);
loadinfo->shdr = 0;
return ret;
}
@ -233,7 +227,7 @@ static inline int elf_loadfile(FAR struct elf_loadinfo_s *loadinfo)
if (ret < 0)
{
bdbg("Failed to read section %d: %d\n", i, ret);
goto errout_with_alloc;
return ret;
}
}
@ -248,11 +242,6 @@ static inline int elf_loadfile(FAR struct elf_loadinfo_s *loadinfo)
}
return OK;
errout_with_alloc:
kfree((FAR void*)loadinfo->alloc);
loadinfo->alloc = 0;
return ret;
}
/****************************************************************************
@ -285,7 +274,7 @@ int elf_load(FAR struct elf_loadinfo_s *loadinfo)
if (ret < 0)
{
bdbg("elf_loadshdrs failed: %d\n", ret);
return ret;
goto errout_with_buffers;
}
/* Determine total size to allocate */
@ -298,16 +287,17 @@ int elf_load(FAR struct elf_loadinfo_s *loadinfo)
if (ret < 0)
{
bdbg("elf_loadfile failed: %d\n", ret);
goto errout_with_shdrs;
goto errout_with_buffers;
}
/* Find static constructors. */
#ifdef CONFIG_ELF_CONSTRUCTORS
ret = elf_findctors(loadinfo);
ret = elf_loadctors(loadinfo);
if (ret < 0)
{
bdbg("elf_findctors failed: %d\n", ret);
goto errout_with_shdrs;
bdbg("elf_loadctors failed: %d\n", ret);
goto errout_with_buffers;
}
#endif
@ -315,9 +305,8 @@ int elf_load(FAR struct elf_loadinfo_s *loadinfo)
/* Error exits */
errout_with_shdrs:
kfree(loadinfo->shdr);
loadinfo->shdr = NULL;
errout_with_buffers:
elf_freebuffers(loadinfo);
return ret;
}

17
nuttx/binfmt/libelf/libelf_symbols.c
View File

@ -101,7 +101,6 @@ static int elf_symname(FAR struct elf_loadinfo_s *loadinfo,
/* Loop until we get the entire symbol name into memory */
buffer = loadinfo->iobuffer;
bytesread = 0;
for (;;)
@ -125,7 +124,7 @@ static int elf_symname(FAR struct elf_loadinfo_s *loadinfo,
ret = elf_read(loadinfo, buffer, readlen, offset);
if (ret < 0)
{
bdbg("Failed to read symbol name\n");
bdbg("elf_read failed: %d\n", ret);
return ret;
}
@ -142,18 +141,12 @@ static int elf_symname(FAR struct elf_loadinfo_s *loadinfo,
/* No.. then we have to read more */
buffer = realloc((FAR void *)loadinfo->iobuffer,
loadinfo->buflen + CONFIG_ELF_BUFFERINCR);
if (!buffer)
ret = elf_reallocbuffer(loadinfo, CONFIG_ELF_BUFFERINCR);
if (ret < 0)
{
bdbg("Failed to reallocate the I/O buffer\n");
return -ENOMEM;
bdbg("elf_reallocbuffer failed: %d\n", ret);
return ret;
}
/* Save the new buffer info */
loadinfo->iobuffer = buffer;
loadinfo->buflen += CONFIG_ELF_BUFFERINCR;
}
/* We will not get here */

50
nuttx/binfmt/libelf/libelf_uninit.c
View File

@ -42,8 +42,12 @@
#include <unistd.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/elf.h>
#include "libelf.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
@ -75,6 +79,12 @@
int elf_uninit(struct elf_loadinfo_s *loadinfo)
{
/* Free all working buffers */
elf_freebuffers(loadinfo);
/* Close the ELF file */
if (loadinfo->filfd >= 0)
{
close(loadinfo->filfd);
@ -83,3 +93,43 @@ int elf_uninit(struct elf_loadinfo_s *loadinfo)
return OK;
}
/****************************************************************************
* Name: elf_freebuffers
*
* Description:
* Release all working buffers.
*
* Returned Value:
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int elf_freebuffers(struct elf_loadinfo_s *loadinfo)
{
/* Release all working allocations */
if (loadinfo->shdr)
{
kfree((FAR void *)loadinfo->shdr);
loadinfo->shdr = NULL;
}
#ifdef CONFIG_ELF_CONSTRUCTORS
if (loadinfo->ctors)
{
kfree((FAR void *)loadinfo->ctors);
loadinfo->ctors = NULL;
loadinfo->nctors = 0;
}
#endif
if (loadinfo->iobuffer)
{
kfree((FAR void *)loadinfo->iobuffer);
loadinfo->iobuffer = NULL;
loadinfo->buflen = 0;
}
return OK;
}

21
nuttx/binfmt/libelf/libelf_unload.c
View File

@ -45,6 +45,8 @@
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/elf.h>
#include "libelf.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
@ -76,7 +78,11 @@
int elf_unload(struct elf_loadinfo_s *loadinfo)
{
/* Release the all allocated memory */
/* Free all working buffers */
elf_freebuffers(loadinfo);
/* Release memory holding the relocated ELF image */
if (loadinfo->alloc)
{
@ -85,19 +91,6 @@ int elf_unload(struct elf_loadinfo_s *loadinfo)
loadinfo->allocsize = 0;
}
if (loadinfo->shdr)
{
kfree((FAR void *)loadinfo->shdr);
loadinfo->shdr = NULL;
}
if (loadinfo->iobuffer)
{
kfree((FAR void *)loadinfo->iobuffer);
loadinfo->iobuffer = NULL;
loadinfo->buflen = 0;
}
return OK;
}

2
nuttx/configs/stm32f4discovery/elf/Make.defs
View File

@ -161,6 +161,8 @@ LDNXFLATFLAGS = -e main -s 2048
# ELF module definitions
CELFFLAGS = $(CFLAGS) -mlong-calls
CXXELFFLAGS = $(CXXFLAGS) -mlong-calls
LDELFFLAGS = -r -e main
ifeq ($(WINTOOL),y)
LDELFFLAGS += -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/gnu-elf.ld}"

270
nuttx/configs/stm32f4discovery/elf/defconfig
View File

@ -28,6 +28,7 @@ CONFIG_INTELHEX_BINARY=y
#
# CONFIG_ARCH_STDBOOL_H is not set
# CONFIG_ARCH_MATH_H is not set
# CONFIG_ARCH_FLOAT_H is not set
# CONFIG_ARCH_STDARG_H is not set
#
@ -387,7 +388,7 @@ CONFIG_ELF_ALIGN_LOG2=2
CONFIG_ELF_STACKSIZE=2048
CONFIG_ELF_BUFFERSIZE=128
CONFIG_ELF_BUFFERINCR=32
# CONFIG_ELF_CONSTRUCTORS is not set
CONFIG_ELF_CONSTRUCTORS=y
CONFIG_SYMTAB_ORDEREDBYNAME=y
#
@ -397,6 +398,7 @@ CONFIG_STDIO_BUFFER_SIZE=256
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
# CONFIG_LIBM is not set
# CONFIG_NOPRINTF_FIELDWIDTH is not set
# CONFIG_LIBC_FLOATINGPOINT is not set
# CONFIG_EOL_IS_CR is not set
@ -425,264 +427,57 @@ CONFIG_HAVE_CXX=y
#
# Examples
#
#
# ADC Example
#
#
# Buttons Example
#
# CONFIG_EXAMPLES_BUTTONS is not set
#
# CAN Example
#
# CONFIG_EXAMPLES_CAN is not set
#
# USB CDC/ACM Class Driver Example
#
# CONFIG_EXAMPLES_CDCACM is not set
#
# USB composite Class Driver Example
#
# CONFIG_EXAMPLES_COMPOSITE is not set
#
# DHCP Server Example
#
# CONFIG_EXAMPLES_DHCPD is not set
#
# ELF Loader Example
#
CONFIG_EXAMPLES_ELF=y
CONFIG_EXAMPLES_ELF_DEVMINOR=0
CONFIG_EXAMPLES_ELF_DEVPATH="/dev/ram0"
#
# FTP Client Example
#
# CONFIG_EXAMPLES_FTPC is not set
#
# FTP Server Example
#
# CONFIG_EXAMPLES_FTPD is not set
#
# "Hello, World!" Example
#
# CONFIG_EXAMPLES_HELLO is not set
#
# "Hello, World!" C++ Example
#
# CONFIG_EXAMPLES_HELLOXX is not set
#
# USB HID Keyboard Example
#
# CONFIG_EXAMPLES_JSON is not set
# CONFIG_EXAMPLES_HIDKBD is not set
#
# IGMP Example
#
# CONFIG_EXAMPLES_IGMP is not set
#
# LCD Read/Write Example
#
# CONFIG_EXAMPLES_LCDRW is not set
#
# Memory Management Example
#
# CONFIG_EXAMPLES_MM is not set
#
# File System Mount Example
#
# CONFIG_EXAMPLES_MOUNT is not set
#
# FreeModBus Example
#
# CONFIG_EXAMPLES_MODBUS is not set
#
# Network Test Example
#
# CONFIG_EXAMPLES_NETTEST is not set
#
# NuttShell (NSH) Example
#
# CONFIG_EXAMPLES_NSH is not set
#
# NULL Example
#
# CONFIG_EXAMPLES_NULL is not set
#
# NX Graphics Example
#
# CONFIG_EXAMPLES_NX is not set
#
# NxConsole Example
#
# CONFIG_EXAMPLES_NXCONSOLE is not set
#
# NXFFS File System Example
#
# CONFIG_EXAMPLES_NXFFS is not set
#
# NXFLAT Example
#
# CONFIG_EXAMPLES_NXFLAT is not set
#
# NX Graphics "Hello, World!" Example
#
# CONFIG_EXAMPLES_NXHELLO is not set
#
# NX Graphics image Example
#
# CONFIG_EXAMPLES_NXIMAGE is not set
#
# NX Graphics lines Example
#
# CONFIG_EXAMPLES_NXLINES is not set
#
# NX Graphics Text Example
#
# CONFIG_EXAMPLES_NXTEXT is not set
#
# OS Test Example
#
# CONFIG_EXAMPLES_OSTEST is not set
#
# Pascal "Hello, World!"example
#
# CONFIG_EXAMPLES_PASHELLO is not set
#
# Pipe Example
#
# CONFIG_EXAMPLES_PIPE is not set
#
# Poll Example
#
# CONFIG_EXAMPLES_POLL is not set
#
# Pulse Width Modulation (PWM) Example
#
#
# Quadrature Encoder Example
#
# CONFIG_EXAMPLES_QENCODER is not set
#
# RGMP Example
#
# CONFIG_EXAMPLES_RGMP is not set
#
# ROMFS Example
#
# CONFIG_EXAMPLES_ROMFS is not set
#
# sendmail Example
#
# CONFIG_EXAMPLES_SENDMAIL is not set
#
# Serial Loopback Example
#
# CONFIG_EXAMPLES_SERLOOP is not set
#
# Telnet Daemon Example
#
# CONFIG_EXAMPLES_TELNETD is not set
#
# THTTPD Web Server Example
#
# CONFIG_EXAMPLES_THTTPD is not set
#
# TIFF Generation Example
#
# CONFIG_EXAMPLES_TIFF is not set
#
# Touchscreen Example
#
# CONFIG_EXAMPLES_TOUCHSCREEN is not set
#
# UDP Example
#
# CONFIG_EXAMPLES_UDP is not set
#
# UDP Discovery Daemon Example
#
#
# uIP Web Server Example
#
# CONFIG_EXAMPLES_UIP is not set
#
# USB Serial Test Example
#
# CONFIG_EXAMPLES_USBSERIAL is not set
#
# USB Mass Storage Class Example
#
# CONFIG_EXAMPLES_USBMSC is not set
#
# USB Serial Terminal Example
#
# CONFIG_EXAMPLES_USBTERM is not set
#
# Watchdog timer Example
#
# CONFIG_EXAMPLES_WATCHDOG is not set
#
# wget Example
#
#
# WLAN Example
#
# CONFIG_EXAMPLES_WLAN is not set
#
# XML RPC Example
#
#
# Interpreters
#
@ -700,74 +495,19 @@ CONFIG_EXAMPLES_ELF_DEVPATH="/dev/ram0"
#
# Networking Utilities
#
#
# DHCP client
#
# CONFIG_NETUTILS_DHCPC is not set
#
# DHCP server
#
# CONFIG_NETUTILS_DHCPD is not set
#
# FTP client
#
# CONFIG_NETUTILS_FTPC is not set
#
# FTP server
#
# CONFIG_NETUTILS_FTPD is not set
#
# Name resolution
#
# CONFIG_NETUTILS_JSON is not set
# CONFIG_NETUTILS_RESOLV is not set
#
# SMTP
#
# CONFIG_NETUTILS_SMTP is not set
#
# TFTP client
#
# CONFIG_NETUTILS_TELNETD is not set
#
# TFTP client
#
# CONFIG_NETUTILS_TFTPC is not set
#
# THTTPD web server
#
# CONFIG_NETUTILS_THTTPD is not set
#
# uIP support library
#
# CONFIG_NETUTILS_UIPLIB is not set
#
# uIP web client
#
# CONFIG_NETUTILS_WEBCLIENT is not set
#
# uIP web server
#
#
# UDP Discovery Utility
#
#
# XML-RPC library
#
#
# ModBus
#

5
nuttx/include/nuttx/binfmt/elf.h
View File

@ -59,6 +59,9 @@
/****************************************************************************
* Public Types
****************************************************************************/
/* The type of one C++ constructor */
typedef FAR void (*elf_ctor_t)(void);
/* This struct provides a desciption of the currently loaded instantiation
* of an ELF binary.
@ -71,7 +74,7 @@ struct elf_loadinfo_s
off_t filelen; /* Length of the entire ELF file */
int filfd; /* Descriptor for the file being loaded */
#ifdef CONFIG_ELF_CONSTRUCTORS
uintptr_t ctors; /* Location of static constructors in memory */
elf_ctor_t ctors; /* Pointer to a list of constructors */
uint16_t nctors; /* Number of constructors */
#endif
uint16_t symtabidx; /* Symbol table section index */