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Compiler - 32bit or 64bit?

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Operating Systems Solaris Compiler - 32bit or 64bit?
# 8  
Old 03-02-2010
You are welcome, Hari_Ganesh.

Thanks jlliagre for the update on cc options.
# 9  
Old 03-05-2010
Hi Gurus,

I thought the issue was resolved,but i am stumped again.

My Dev team is still behind me with the following issue:

Code:
 
Hi,
 
Could you please check with sun, if there is 64 bit CC available for both sun solaris x-86 and sparcv9. Both the servers that we checked has 64 bit libraries, but CC and other related bin is only of 32 bit. Please check and let us know as early as possible.
 
Even if we set compiler flags as -m64 or -xarch=sparcv9. As the CC or related binaries are of 32 bit, if we override them to link with a 64 bit libray, they fail to locate them. They internally get mapped with the path of 32 bit libraries and throw wrong ELF class error, while getting linked with our libraries.
 
X-86
cheux321 @ /ist/dndev
[446]dndev: file /opt/sunstudio12.1/bin/CC
/opt/sunstudio12.1/bin/CC:      ELF 32-bit LSB executable 80386 Version 1 [FPU], dynamically linked, stripped
 
Ultra-sparc
cheux402 @ /oasis/dndev
[175]dndev: file /opt/SUNWspro/bin/CC
/opt/SUNWspro/bin/CC:   ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, dynamically linked, stripped
 
We have 64 bit ld available in both the servers. Likewise, please check if there is any similar patch available with sun for CC and related binaries also.
 
cheux321 @ /ist/dndev
[448]dndev: file /usr/ccs/bin/amd64/ld
/usr/ccs/bin/amd64/ld:  ELF 64-bit LSB executable AMD64 Version 1, dynamically linked, stripped
 
cheux402 @ /oasis/dndev
 [178]dndev: file /usr/ccs/bin/sparcv9/ld
/usr/ccs/bin/sparcv9/ld:        ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, stripped



Their question is that there is no 64 bit CC binary in the said path while as there are 64 bit library files(as the above otput . This is what i understood from the meeting i had.
I was not sure about how to proceed apart from logging a case with Sun.

Any inputs is appreciated.

HG
# 10  
Old 03-05-2010
What case would it be ?

There is absolutely no relationship between the compiler itself being 32 or 64 bit and its ability to create 32 or 64 bit binaries.
# 11  
Old 03-07-2010
Hi Jlliagre,

Thanks jlliagre for clarifying that there is no diparity in "CC" binary for 32bit and 64 bit compilation.

Thanks Again..
# 12  
Old 03-09-2010
Hi jlliagre,

I am back again...(Sorry i don't have anybody else to resort to)...

My problem now is(ofcourse my dev team)....They have illustrated a scenario which is explaining their issue...Would really appreciate if you could find a solution.

HTML Code:
A simple scenario:
 
In C++ it is desirable to inline (feature of C++) as many codes as possible to reduce the run-time overhead of CPU intensive applications. iropt component is the global optimizer in Sun Studio compiler collection suite; and inlining will be taken care by iropt. 
 
Like CC, iropt is also a 32 bit binary in our compiler, so when initiated it throws an error like this:
 
[422]dndev: iropt -help
ld.so.1: iropt: fatal: /usr/lib/amd64/libdemangle.so.1: wrong ELF class: ELFCLASS64
Killed
cheux321 @ /ist/dndev
[427]dndev: file /opt/sunstudio12.1/prod/bin/iropt
/opt/sunstudio12.1/prod/bin/iropt:      ELF 32-bit LSB executable 80386 Version 1 [FPU], dynamically linked, stripped
cheux321 @ /ist/dndev
[431]dndev: file /usr/lib/amd64/libdemangle.so.1
/usr/lib/amd64/libdemangle.so.1:        ELF 64-bit LSB dynamic lib AMD64 Version 1 [SSE CMOV], dynamically linked, not stripped, no debugging information available
I think their problem is that they are not able to override the 32bit libraries even after using the prescribed options. The "CC" binary (compiled in 32bit) is referring to 32bit libraries even if they specify the 64bit libraries.

Thanks
HG
# 13  
Old 03-09-2010
Wow. Talk about taking something really, really simple and going out of their way to make it harder than it has to be.

These guys are supposed to be smart enough to write C/C++ code? But they can't get a simple compiler suite to work for them? Despite the fact that thousands upon thousands of people have that very compiler suite work just fine for them every day of the year? And they all can use that compiler suite to produce 32- and 64-bit binaries without any problems?

How'd they get iropt to barf like that? Mess around with LD_LIBRARY_PATH? If they're going to mess around with linker environment variables, sit them down and have them read and heed the man page for ld.so.1.
# 14  
Old 03-09-2010
Hi,

Thanks for responding.You just wrote what i had in mind. Alas!I can't direct the same to my Dev team. This issue will get resolved only if i find a solution for it.

Thanks
HG
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