Logan,
I've been building it for bare-metal ARM using clang (with patches that haven't
been upstreamed yet), but the process should be similar for an arm-linux-gnu
target, assuming you want to make a static library out of it:
Compile all the *.cpp files with:
clang++ -target $TRIPLE --sysroot=/path/to/your/targets/sysroot -funwind-tables
-std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2
-Wsign-conversion -Wshadow -Wconversion -Wunused-variable
-Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags
-Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2
-Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof
And similarly, all the *.c files with:
clang -target $TRIPLE --sysroot=/path/to/your/targets/sysroot -funwind-tables
-std=c11 -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow
-Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts
-Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare
-Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof
On bare-metal, I also build the unwinder's *.c,*.cpp, and *.S files, but on
linux you'll want to skip that step.
Finally, archive all the *.o files into a static libarary with ar, and ranlib.
At link time, you'll need to pull in -lgcc_s (which is for the unwinder).
I can share my modifications to the buildit & testit scripts if you think they
would be useful to you.
As for __USING_SJLJ_EXCEPTIONS__, I checked and it is indeed a compiler builtin
for both clang and gcc. __ARM_EABI_UNWINDER__ does not seem to be, and I don't
see anything nearby to where I found the SJLJ one that would indicate what we
want. I think the right thing to check for here is:
#if __arm__ && !defined(__USING_SJLJ_EXCEPTIONS__)
Cheers,
Jon
On 4/16/14, 5:11 AM, Logan Chien wrote:
Hi all,
Sorry for the typo.
I was trying to build and test libc++abi from [1] but failed. I have tried to
build the library by compiling all the *.cpp and *.c, but it seems not working.
May you provide some instructions to build it?
BTW, I agree with Jonathan. It seems that __ARM_EABI_UNWINDER__ is not
pre-defined.
I am not sure for __USING_SJLJ_EXCEPTIONS__ at the moment. I will check out
ASAP.
Logan
[1]:
https://github.com/awong-dev/ndk/tree/use-libc%2B%2Babi/sources/cxx-stl/llvm-libc%2B%2Babi/libcxxabi
[2] http://www.sourceware.org/ml/libc-alpha/2004-02/msg00138.html
On Wed, Apr 16, 2014 at 7:58 PM, Logan Chien <[email protected]
<mailto:[email protected]>> wrote:
Hi Jonathan and Nick,
I was trying to build libc++abi from repository but failed. May you provide
some instruction to cross compile libc++abi for ARM Linux? Thanks.
Logan
On Tue, Apr 15, 2014 at 5:23 AM, Jonathan Roelofs <[email protected]
<mailto:[email protected]>> wrote:
--
Jon Roelofs
[email protected]
CodeSourcery / Mentor Embedded
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