What is the correct command to compile this code?
http://www.boost.org/doc/libs/1_45_0/doc/html/boost_asio/example/http/client/async_client.cpp
I had installed boost library in /usr/include/boost
E.g.
clang++ -std=c++03 -Wall -pedantic -g -O2 async_client.cpp -o async_client -lboost_system -lboost_thread -lpthread
Assuming your system's packaged version of Boost (or pre-configured include & lib paths). To make use of your custom built Boost library tree in ~/custom/boost:
clang++ -std=c++03 -Wall -pedantic -g -O2 \
-isystem ~/custom/boost/ ~/custom/boost/libs/asio/example/cpp03/http/client/ \
async_client.cpp -o async_client \
-L ~/custom/boost/stage/lib/ -Wl,-rpath,/home/sehe/custom/boost/stage/lib \
-lboost_system -lboost_thread -lpthread
Replace clang++ by g++ at will.
-std=c++03 -Wall -pedantic -g -O2 only for expositional purposes.
Related
I am trying to compile FormCalc 9.9 on a MacOS 10.10.5.
Compilation consists in running a bash script on terminal. I redirect both stdout and sterr to a log file, but this is all the output I get:
$ ./compile
Compiling for system type MacOSX-x86-64
cp -p ./bin/MacOSX-x86-64/* MacOSX-x86-64/
gcc -O3 -fomit-frame-pointer -ffast-math -Wall -Wextra -m64 -o MacOSX-x86-64/ToForm ./FormCalc/ToForm.c
./FormCalc/ToForm.c:72:9: warning: declaration does not declare anything [-Wmissing-declarations]
__attribute__ ((fallthrough));
^
>
1 warning generated.
strip MacOSX-x86-64/ToForm
gcc -O3 -fomit-frame-pointer -ffast-math -Wall -Wextra -m64 -o MacOSX-x86-64/ToFortran ./FormCalc/ToFortran.c
strip MacOSX-x86-64/ToFortran
gcc -O3 -fomit-frame-pointer -ffast-math -Wall -Wextra -m64 -o MacOSX-x86-64/ToC ./FormCalc/ToC.c
strip MacOSX-x86-64/ToC
gcc -O3 -fomit-frame-pointer -ffast-math -Wall -Wextra -m64 -o MacOSX-x86-64/reorder ./tools/reorder.c
strip MacOSX-x86-64/reorder
looking for gcc... /usr/bin/clang
looking for g++... /usr/bin/clang++
looking for fortran... /usr/local/bin/gfortran
extracting the Fortran libraries... ok
does gfortran append underscores... error linking Fortran and C
How can I get more information about the linking error?
I am having serious trouble compiling Qt with the OCI plugin.
The Qt version is 5.6.1, and the Oracle instant client version is 12.1.0.2.0. I have installed both the basic and SDK versions, as the Qt online manual asks.
I then try to run the following command:
./configure -I /usr/include/oracle/12.1/client64/ -L /usr/lib/oracle/12.1/client64/lib -prefix /online/daq/antonin/qt_build -plugin-sql-oci -qt-xcb -v
Which produces this output:
+ cd qtbase
+ /online/daq/antonin/qt_source/5.6/Src/qtbase/configure -top-level -I /usr/include/oracle/12.1/client64/ -L /usr/lib/oracle/12.1/client64/lib -prefix /online/daq/antonin/qt_build -plugin-sql-oci -qt-xcb -v
Which edition of Qt do you want to use ?
Type 'c' if you want to use the Commercial Edition.
Type 'o' if you want to use the Open Source Edition.
o
This is the Qt Open Source Edition.
You are licensed to use this software under the terms of
the Lesser GNU General Public License (LGPL) versions 2.1.
You are also licensed to use this software under the terms of
the GNU Lesser General Public License (LGPL) versions 3.
Type '3' to view the GNU Lesser General Public License version 3.
Type 'L' to view the Lesser GNU General Public License version 2.1.
Type 'yes' to accept this license offer.
Type 'no' to decline this license offer.
Do you accept the terms of either license? yes
Running configuration tests (phase 1)...
Precompiled-headers support enabled.
g++ -c -fvisibility=hidden fvisibility.c
Symbol visibility control enabled.
cc1plus: error: unrecognized command line option "-fuse-ld=gold"
g++ -o libtest.so -shared -Wl,-Bsymbolic-functions -fPIC bsymbolic_functions.c
Symbolic function binding enabled.
DEFAULT_INCDIRS="/usr/include/c++/4.4.7
/usr/include/c++/4.4.7/x86_64-redhat-linux
/usr/include/c++/4.4.7/backward
/usr/local/include
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/include
/usr/include
"
DEFAULT_LIBDIRS="/lib64
/usr/lib64
/online/daq/lib
/usr/lib
/lib
/usr/lib/gcc/x86_64-redhat-linux/4.4.7
"
Done running configuration tests.
Creating qmake...
gmake: Nothing to be done for `first'.
Running configuration tests (phase 2)...
Found pkg-config from $PATH: /usr/bin/pkg-config
Determining architecture... ()
g++ -c -pipe -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../mkspecs/linux-g++ -o arch.o arch.cpp
g++ -o arch arch.o -L/usr/lib/oracle/12.1/client64/lib
Found architecture in binary
CFG_ARCH="x86_64"
CFG_CPUFEATURES=" mmx sse sse2"
System architecture: 'x86_64'
Host architecture: 'x86_64'
C++11 auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o c++11.o c++11.cpp
g++ -Wl,-O1 -o c++11 c++11.o -L/usr/lib/oracle/12.1/client64/lib
C++11 enabled.
C++14 auto-detection... ()
g++ -c -pipe -O2 -std=gnu++1y -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o c++14.o c++14.cpp
cc1plus: error: unrecognized command line option "-std=gnu++1y"
gmake: *** [c++14.o] Error 1
C++14 disabled.
default C++ standard edition auto-detection... ()
g++ -pipe -O2 -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o c++default.ii -E c++default.cpp
default C++ standard edition enabled.
64-bit std::atomic auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o atomic64.o atomic64.cpp
atomic64.cpp:34:18: error: atomic: No such file or directory
atomic64.cpp:37: error: expected unqualified-id before '<' token
atomic64.cpp:37: error: expected ')' before '<' token
atomic64.cpp:37: error: expected initializer before '<' token
gmake: *** [atomic64.o] Error 1
64-bit std::atomic disabled.
64-bit std::atomic in -latomic auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o atomic64.o atomic64.cpp
atomic64.cpp:34:18: error: atomic: No such file or directory
atomic64.cpp:37: error: expected unqualified-id before '<' token
atomic64.cpp:37: error: expected ')' before '<' token
atomic64.cpp:37: error: expected initializer before '<' token
gmake: *** [atomic64.o] Error 1
64-bit std::atomic in -latomic disabled.
sse2 auto-detection... ()
g++ -c -pipe -msse2 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o sse2.o sse2.cpp
g++ -o sse2 sse2.o -L/usr/lib/oracle/12.1/client64/lib
sse2 enabled.
sse3 auto-detection... ()
g++ -c -pipe -msse3 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o sse3.o sse3.cpp
g++ -o sse3 sse3.o -L/usr/lib/oracle/12.1/client64/lib
sse3 enabled.
ssse3 auto-detection... ()
g++ -c -pipe -mssse3 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o ssse3.o ssse3.cpp
g++ -o ssse3 ssse3.o -L/usr/lib/oracle/12.1/client64/lib
ssse3 enabled.
sse4_1 auto-detection... ()
g++ -c -pipe -msse4.1 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o sse4_1.o sse4_1.cpp
g++ -o sse4_1 sse4_1.o -L/usr/lib/oracle/12.1/client64/lib
sse4_1 enabled.
sse4_2 auto-detection... ()
g++ -c -pipe -msse4.2 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o sse4_2.o sse4_2.cpp
g++ -o sse4_2 sse4_2.o -L/usr/lib/oracle/12.1/client64/lib
sse4_2 enabled.
avx auto-detection... ()
g++ -c -pipe -mavx -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o avx.o avx.cpp
g++ -o avx avx.o -L/usr/lib/oracle/12.1/client64/lib
avx enabled.
avx2 auto-detection... ()
g++ -c -pipe -mavx2 -g -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o avx2.o avx2.cpp
cc1plus: error: unrecognized command line option "-mavx2"
gmake: *** [avx2.o] Error 1
avx2 disabled.
ipc_sysv auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o ipc.o ipc.cpp
g++ -Wl,-O1 -o ipc_sysv ipc.o -L/usr/lib/oracle/12.1/client64/lib
ipc_sysv enabled.
zlib auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o zlib.o zlib.cpp
g++ -Wl,-O1 -o zlib zlib.o -L/usr/lib/oracle/12.1/client64/lib -lz
zlib enabled.
mtdev auto-detection... ()
Project ERROR: mtdev development package not found
mtdev disabled.
libjpeg auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o libjpeg.o libjpeg.cpp
libjpeg.cpp: In function 'int main(int, char**)':
libjpeg.cpp:43: warning: 'cinfo' is used uninitialized in this function
g++ -Wl,-O1 -o libjpeg libjpeg.o -L/usr/lib/oracle/12.1/client64/lib -ljpeg
libjpeg enabled.
libpng auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o libpng.o libpng.cpp
g++ -Wl,-O1 -o libpng libpng.o -L/usr/lib/oracle/12.1/client64/lib -lpng
libpng enabled.
libdl auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o libdl.o libdl.cpp
g++ -Wl,-O1 -o libdl libdl.o -L/usr/lib/oracle/12.1/client64/lib -ldl
libdl enabled.
DB2 auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o db2.o db2.cpp
db2.cpp:34:20: error: sqlcli.h: No such file or directory
db2.cpp:35:21: error: sqlcli1.h: No such file or directory
gmake: *** [db2.o] Error 1
DB2 disabled.
InterBase auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o ibase.o ibase.cpp
ibase.cpp:34:19: error: ibase.h: No such file or directory
gmake: *** [ibase.o] Error 1
InterBase disabled.
MySQL (thread-safe) auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -isystem /usr/include/mysql -I../../../mkspecs/linux-g++ -o mysql.o ../mysql/mysql.cpp
g++ -Wl,-O1 -o mysql_r mysql.o -L/usr/lib/oracle/12.1/client64/lib -L/usr/lib64/mysql -lz -lcrypt -lnsl -lm -lpthread -lssl -lcrypto -lmysqlclient_r
MySQL (thread-safe) enabled.
OCI auto-detection... ()
g++ -c -pipe -O2 -std=gnu++0x -Wall -W -fPIC -I. -isystem /usr/include/oracle/12.1/client64 -I../../../mkspecs/linux-g++ -o oci.o oci.cpp
g++ -Wl,-O1 -o oci oci.o -L/usr/lib/oracle/12.1/client64/lib -lclntsh
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `lxXmlCvEsc0'
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `lxXmlGEntEscImpl'
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `slnxmul'
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `zt_init'
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `slnxadd'
/usr/lib/oracle/12.1/client64/lib/libclntsh.so: undefined reference to `slnxsub'
collect2: ld returned 1 exit status
gmake: *** [oci] Error 1
OCI disabled.
Oracle (OCI) support cannot be enabled due to functionality tests!
Turn on verbose messaging (-v) to /online/daq/antonin/qt_source/5.6/Src/qtbase/configure to see the final report.
If you believe this message is in error you may use the continue
switch (-continue) to /online/daq/antonin/qt_source/5.6/Src/qtbase/configure to continue.
As you can see, there are several undefined references for one of the the OCI .so files. I have tried checking online, but I have found barely any references to these symbols.
Any idea what could be causing this? A missing .so file? Wrong version of the library?
I'm working in Windows 7, 64 bit, running in a Virtual Box machine on a (recent-ish) Mac with Intel processor.
I have MinGW installed:
gcc -dumpmachine
>>> x86_64-w64-mingw32
I am trying to compile a Windows exe for this code (Landsat-8 routines for solar and satellite angle calculations):
gcc -I ias_lib -o l8_angle.exe -c l8_angle.c
which gives me no errors or warnings when run, and creates l8_angle.exe as expected. When opened, the exe gives:
The version of this file is not compatible with the version of Windows
you're running. Check your computer's system information to see
whether you need an x86 (32-bit) for x64 (64-bit) version of the
program, and then contact the software publisher.
Is it possible to compile this program on my setup?
If you're wondering I can run make on the Mac OS side to get a Linux executable, but I need a Windows executable for my production machine.
I was able to compile successully by echoing the gcc statements in both makefiles:
#echo $(value INCS)
which for some reasom prints the completely assembled gcc command. I then confirmed what the selected flags did and saw that they were all equally appropriate for a Windows build.
The build commands were then:
cd ias_lib
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_calculate_angles_rpc.c -o ias_angle_gen_calculate_angles_rpc.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_read_ang.c -o ias_angle_gen_read_ang.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_utilities.c -o ias_angle_gen_utilities.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_initialize.c -o ias_angle_gen_initialize.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_write_image.c -o ias_angle_gen_write_image.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_angle_gen_find_scas.c -o ias_angle_gen_find_scas.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_geo_convert_dms2deg.c -o ias_geo_convert_dms2deg.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_math_compute_unit_vector.c -o ias_math_compute_unit_vector.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_math_compute_vector_length.c -o ias_math_compute_vector_length.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_math_find_line_segment_intersection.c -o ias_math_find_line_segment_intersection.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_logging.c -o ias_logging.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_misc_create_output_image_trim_lut.c -o ias_misc_create_output_image_trim_lut.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_misc_convert_to_uppercase.c -o ias_misc_convert_to_uppercase.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_misc_write_envi_header.c -o ias_misc_write_envi_header.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_odl_free_tree.c -o ias_odl_free_tree.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_odl_get_field.c -o ias_odl_get_field.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_odl_read_tree.c -o ias_odl_read_tree.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_parm_provide_help.c -o ias_parm_provide_help.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_parm_read.c -o ias_parm_read.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_parm_map_odl_type.c -o ias_parm_map_odl_type.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_parm_check_ranges.c -o ias_parm_check_ranges.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c ias_satellite_attributes.c -o ias_satellite_attributes.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c landsat8.c -o landsat8.o
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -c lablib3.c -o lablib3.o
ar -r libl8ang.a ias_angle_gen_calculate_angles_rpc.o ias_angle_gen_read_ang.o ias_angle_gen_utilities.o ias_angle_gen_initialize.o ias_angle_gen_write_image.o ias_angle_gen_find_scas.o ias_geo_convert_dms2deg.o ias_math_compute_unit_vector.o ias_math_compute_vector_length.o ias_math_find_line_segment_intersection.o ias_logging.o ias_misc_create_output_image_trim_lut.o ias_misc_convert_to_uppercase.o ias_misc_write_envi_header.o ias_odl_free_tree.o ias_odl_get_field.o ias_odl_read_tree.o ias_parm_provide_help.o ias_parm_read.o ias_parm_map_odl_type.o ias_parm_check_ranges.o ias_satellite_attributes.o landsat8.o lablib3.o
cd ..
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -I./ias_lib/ -I./ -c -o l8_angles.o l8_angles.c
gcc -g -Wall -O2 -march=nocona -mfpmath=sse -msse2 -I./ias_lib/ -I./ -c -o angles_api.o angles_api.c
gcc -g -Wall -O2 -I./ias_lib/ -I./ -o l8_angles.exe ias_lib/libl8ang.a l8_angles.o angles_api.o -L./ias_lib/ -ll8ang -lm
where the only change was in the final line, l8_angles.exe rather than l8_angles. If anyone has a more straightforward way, I would love to see it.
I am using the Boost library in Unix, GCC. I read the following topic: Boost static linking and added -static to my Makefile. However, this does not work.
Here is my Makefile:
all: nbbo
nbbo: nbbo.o reader.o
g++ -static -O3 -ffast-math -funroll-loops -ansi -pedantic-errors -L/usr/lib -lboost_filesystem -lboost_serialization -lboost_iostreams -lz -I /usr/include/boost -o nbbo nbbo.o reader.o
nbbo.o: nbbo.cpp
g++ -static -O3 -ffast-math -funroll-loops -ansi -pedantic-errors -I /usr/include/boost -c -o nbbo.o nbbo.cpp
reader.o: reader.cc reader.h
g++ -static -O3 -ffast-math -funroll-loops -ansi -pedantic-errors -I /usr/include/boost -c -o reader.o reader.cc
clean:
rm *.o
And here is the error message:
nbbo.o: In function `__tcf_10':
nbbo.cpp:(.text+0x3d9): undefined reference to `boost::serialization::extended_type_info::key_unregister() const'
nbbo.cpp:(.text+0x3e3): undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::type_unregister()'
nbbo.cpp:(.text+0x3fb): undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()'
etc
Which "UNIX" are you using? Using the -static flag should work fine on linux. But not on OSX. On OSX you have to remove the static flag and give the complete path to the library in order to link statically. I dont know how this would work on other "UNIXes"
eg.
g++ ..... /path/to/your/lib.a ... -o ..
I am trying to compile a project to run on an ARM board that I have. To use the debugger, I have to put debugging symbols in the resulting .elf file.
I configured everything and ran my makefile, which produced the following results:
arm-elf-gcc -x assembler-with-cpp -c -mcpu=arm7tdmi-s -g -gdwarf-2 -Wa,-amhls=src/crt.lst src/crt.S -o src/crt.o
arm-elf-gcc -c -mcpu=arm7tdmi-s -O0 -g -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=src/main.lst -MD -MP -MF .dep/main.o.d -I . -I./inc src/main.c -o src/main.o
arm-elf-gcc -c -mcpu=arm7tdmi-s -O0 -g -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=library/md5.lst -MD -MP -MF .dep/md5.o.d -I . -I./inc library/md5.c -o library/md5.o
arm-elf-gcc -c -mcpu=arm7tdmi-s -O0 -g -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=library/bignum.lst -MD -MP -MF .dep/bignum.o.d -I . -I./inc library/bignum.c -o library/bignum.o
arm-elf-gcc ./src/crt.o ./src/main.o ./library/md5.o ./library/bignum.o -mcpu=arm7tdmi-s -g -nostartfiles -T./prj/LPC2138_flash.ld -Wl,-Map=testFLASH.map,--cref,--no-warn-mismatch -nostdlib -L. -Wl,-static -ffunction-sections -Wl,--gc-sections -Wl,-s -fdata-sections -lc -lg -lnosys -o testFLASH.elf
I have put in the -g flags, but when I try to find debugging symbols, I get only :
C:\Users\stkerr\Code\EclipseWorkspace\LibraryWork>objdump -g testFLASH.elf
testFLASH.elf: file format elf32-little
This is further confirmed when I try to open the .elf file in my debugger, I get an error about the file not having debugging symbols.
Can anyone point to an error in my arm-elf-gcc calls or a flag that I am missing?
After poking around a little more in the documentation, the -Wl,-s is the problem.
It strips all symbols from the resulting executable, including the debugging information.