Hi All,

I am trying to compile Postgres Source code for ARM cortex A8 architecture.
While compiling, I got an error message which read "selected processor does not 
support `swpb r4,r4,[r3]' "
One of the Postgres forums at the location 
"http://postgresql.1045698.n5.nabble.com/BUG-6331-Cross-compile-error-aborts-Works-if-disable-spinlock-is-used-td5068738.html";
Mentioned that by using -disable-spinlocks, we can overcome the error at the 
cost of performance. I did the same and it compiled successfully.
But the INSTALL guide in Postgres source code mentioned that I should inform 
the Postgres community in case I am forced to use -disable spinlocks to let the 
code compile.
Hence this email. So please suggest me what I should do now.  What sort of 
performance penalty will be there if I use this option? What actually is the 
significance of this parameter?
Please guide me.

This is the configure command I used
./configure CC=/opt/toolchain/bin/armv7l-timesys-linux-gnueabi-gcc 
--target=armv7l-timesys-linux-gnueabi 
--prefix=/home/jayashankar/WorkingDirectory/Postgres9.1_Cortex 
--host=x86_64-unknown-linux-gnu CFLAGS='-march=armv7-a -mtune=cortex-a8 
-mfpu=vfpv3 -mthumb' --disable-spinlocks

Thanks and Regards
Jayashankar



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