How to get aCC & ld to use alternative crt0.o ?

[Michael Knox]

Does anyone know how to tell aCC to use libs from a location other than /opt/langtools?

When aCC calls ld it does ...
/usr/ccs/bin/ld -o a.out /opt/langtools/lib/pa20_64/crt0.o -u___exit -umain -L ...

Does anyone know how to tell aCC to tell ld that crt0.o is in a different location?
I can do this manually with ld, but can't get aCC to tell ld.

Cheers

[RAC_1]

aCC must be using SHLIB_PATH or/and LD_LIBRARY_PATH variables in addition to in-built library path.

chatr 'acc' will tell you what it uses. Make changes accordingly. May be you will have to set SHLIB_PATH variable.

[Michael Knox]

Thanks RAC,
However I have already tried SHLIB_PATH, LD_LIBRARY_PATH, LPATH and explictly requiring the lib (using -l)

and unless I misread the chatr output ...
shared library dynamic path search:
SHLIB_PATH disabled second
embedded path disabled first
aCC doesn't look at SHLIB_PATH anyway.

[RAC_1]

chatr ldd

Changes if required.

[Muthukumar_5]

what is there in SHLIB_PATH Variable?

echo $SHLIB_PATH before building? Try to export and build it.

hth.

[Arunvijai_4]

Try modifying your Makefile(if you have any) and add explicitly HLIB_PATH, LD_LIBRARY_PATH, LPATH and -L/.

-Arun

[Michael Knox]

chatr `which ldd` ...
/usr/ccs/bin/ldd:
shared executable
shared library dynamic path search:
SHLIB_PATH disabled second
embedded path disabled first
Neither ldd nor aCC appear to utilise SHLIB_PATH ...

However I have tried setting SHLIB_PATH, LD_LIBRARY_PATH and LPATH (and using -L for aCC) all to no avail.

Once I get it working it will go into the Makefiles, but until then ...

[Muthukumar_5]

I hope in the configuration phase itself you can add with -L/directory/ so that makefiles will get reflected this changes.

check with make -p to know LDFLAGS more.

hth.

[VEL_1]

Hi,

Try in new session by changing the LDFALGS library orders:

LDFALGS="-L/usr/lib -L/usr/local/lib"

Thanks.

[Michael Knox]

A sample ...
$ echo $SHLIB_PATH
/langtools/lib:/langtools/lib/pa20_64
$ echo $LD_LIBRARY_PATH
/langtools/lib:/langtools/lib/pa20_64

$ /aCC/bin/aCC -L/langtools/lib -L/langtools/lib/pa20_64 -v -Ae -mt -ext +DA2.0W +DA2.0W /staff/mknox/tmp/conftest.c

/aCC/lbin/ctcom.pa20 -architecture 2.0W -architecture 2.0W -piccode long -inst compiletime -diags 523 -ext on -lang c -exception off -inline_power 1 -longbranch 0 -unique_strings off -cachesize 256 -I/usr/include -D__HP_CXD_SPP=1 -D__hpux -D__unix -D__hppa -D__hp9000s800 -D__parisc -D__STDCPP__ -D_LP64 -D__LP64__ -D__HP_cc=33900 -D_REENTRANT -DRWSTD_MULTI_THREAD -DRW_MULTI_THREAD -D_THREAD_SAFE -D_HPUX_SOURCE -D_POSIX_C_SOURCE=199506L -D__hp9000s700 -D_PA_RISC2_0 -D__STDC_EXT__ -D_HPUX_SOURCE -D_INCLUDE_LONGLONG /staff/mknox/tmp/conftest.c
LPATH=/usr/lib/pa20_64:/opt/langtools/lib/pa20_64
/usr/ccs/bin/ld -o a.out /opt/langtools/lib/pa20_64/crt0.o -u___exit -umain -L /langtools/lib -L /langtools/lib/pa20_64 conftest.o -lpthread -lc >/var/tmp/AAAa11613 2>&1
/aCC/bin/c++filt &2
/usr/ccs/bin/ld: Can't open /opt/langtools/lib/pa20_64/crt0.o
/usr/ccs/bin/ld: No such file or directory
removing /var/tmp/AAAa11613
$

Setting LPATH appears to make no difference

[RAC_1]

This is output fro my system.
# chatr `which ldd`
/usr/ccs/bin/ldd:
32-bit ELF executable
shared library dynamic path search:
LD_LIBRARY_PATH enabled first
SHLIB_PATH enabled second
embedded path enabled third Not Defined


All paths enabled. Do you have latest ldd patch?? you can also try enabling it. man chatr for details.

[Ermin Borovac · Accepted solution]

Have a look at the following URL

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,2548,00.html

Try setting SDKROOT environment variable to where is root directory of your aCC installation.

[Michael Knox]

Thanks Ermin for the pointers, thats solved it.

[ranganath ramachandra]

hi,

i guess you are aware that SDKROOT will make aCC look into $SDKROOT for everything (e.g. the linker it will invoke, etc), not just crt0.o.

any specific reason why you want to do this?

regards
ranga