Changes to get a clean build of apps/examples/cxxtest with the STM32 and uClibc++

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5310 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-11-04 20:29:04 +00:00
parent a0ad129ef4
commit a617056000
4 changed files with 31 additions and 4 deletions

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@ -93,7 +93,7 @@ LDLINKFLAGS = $(ARCHSCRIPT) # Link flags used with $(LD)
CCLINKFLAGS = $(ARCHSCRIPT) # Link flags used with $(CC)
LDFLAGS = $(ARCHSCRIPT) # For backward compatibility, same as CCLINKFLAGS
LIBSUPXX = ${shell $(CC) --print-file-name=libsupc++.a}
LIBSUPXX = ${shell $(CC) $(CXXFLAGS) --print-file-name=libsupc++.a}
EXTRA_LIBPATHS = -L "${shell dirname "$(LIBSUPXX)"}"
EXTRA_LIBS = -lsupc++

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@ -1008,7 +1008,34 @@ Where <subdir> is one of the following:
b. Execute 'make menuconfig' in nuttx/ in order to start the
reconfiguration process.
3. At present (2012/11/02), this example builds only with exceptions
3. Ideally, you should build with a toolchain based on GLIBC or
uClibc++. It you use a toolchain based on newlib, you may see
an error like the following:
.../lib/libsupc++.a(vterminate.o): In function `__gnu_cxx::__verbose_terminate_handler()':
vterminate.cc:(....): undefined reference to `_impure_ptr'
Here is a quick'n'dirty fix:
1. Get the directory where you can find libsupc++:
arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -print-file-name=libsupc++.a
2. Go to that directory and save a copy of vterminate.o (in case you
want to restore it later:
cd <the-directory-containing-libsupc++.a>
arm-none-eabi-ar.exe -x libsupc++.a vterminate.o
3. Then remove vterminate.o from the library. At build time, the
uClibc++ package will provide a usable replacement vterminate.o.
Now NuttX should link with no problem. If you want to restore the
vterminate.o that you removed from libsupc++, you can do that with:
arm-none-eabi-ar.exe rcs libsupc++.a vterminate.o
4. At present (2012/11/02), this example builds only with exceptions
disabled (CONFIG_UCLIBCXX_EXCEPTIONS=n).
elf:

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@ -114,7 +114,7 @@ ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gc
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
LDSCRIPT = ld.script
LIBSUPXX = ${shell $(CC) --print-file-name=libsupc++.a}
LIBSUPXX = ${shell $(CC) $(CXXFLAGS) --print-file-name=libsupc++.a}
EXTRA_LIBPATHS = -L "${shell dirname "$(LIBSUPXX)"}"
EXTRA_LIBS = -lsupc++

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@ -1,4 +1,4 @@
/****************************************************************************
/****************************************************************************
* configs/twr-k60n512/scripts/ld.script
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.