Minimalistic Oracle: How to check whether a library is compiled to 32-bit or 64-bit code on Linux

Tuesday, April 21, 2015

How to check whether a library is compiled to 32-bit or 64-bit code on Linux

On Linux, use objdump:

objdump -f /u01/oracle/product/oracle_client32/mylibdir/mylibfile.so
/u01/oracle/product/oracle_client32/mylibdir/mylibfile.so:     file format elf32-i386
architecture: i386, flags 0x00000150:
HAS_SYMS, DYNAMIC, D_PAGED
start address 0x00000560

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