Summary of compiler commands under Linux and AIX

64-bit Linux compiler 32-bit program command: Gcc-m32 test.c-o test32

64-bit Linux compiler 64-bit program command: gcc-m64 test.c-o Test64

64-bit Linux compiles 32-bit. O Command: gcc-m32-c test.c

64-bit Linux compiles 64-bit. O Command: gcc-m64-c test.c

64-bit Linux compiled 32-bit Static library command: AR cr libt32.a SOTEST.O

64-bit Linux compiled 64-bit Static library command: AR cr libt64.a SOTEST.O

64-bit Linux compiled 32-bit Dynamic library command: gcc-m32-g-wall-shared-fpic sotest.c-o libt32.so

64-bit Linux compiled 64-bit Dynamic library command: gcc-m64-g-wall-shared-fpic sotest.c-o libt64.so

64-bit Linux compile 32-bit invoke Dynamic Library program command: Gcc-m32 test.c-l./-lt32-o t32 or gcc-m32 test.c libt32.so-o T32 the same effect

64-bit Linux compile 64-bit invoke Dynamic Library program command: gcc-m64 test.c-l./-lt64-o t64 or gcc-m64 test.c libt64.so-o T64 the same effect

To view the static library export function: Nm-s *.a

View. A library file number of bits: Objdump-a *.a

View. So library file bits: objdump-a *.so or file *.so

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64-bit AIX compiled under 32-bit program command: gcc-maix32 test.c-o test32

64-bit AIX compiled under 64-bit program command: gcc-maix64 test.c-o Test64

64-bit Linux compiles 32-bit. O Command: gcc-m32-c test.c

64-bit Linux compiles 64-bit. O Command: gcc-m64-c test.c

64-bit AIX compiles 32-bit static library commands ar cr libt32.a *.O

64-bit AIX compiles 64-bit static library commands ar-x64 CR libt64.a *.O

32-bit Dynamic Library command compiled under 64-bit AIX: gcc-maix32-g-wall-shared-fpic Sotest.c-o libt32.so

64-bit Dynamic Library command compiled under 64-bit AIX: gcc-maix64-g-wall-shared-fpic Sotest.c-o libt64.so

64-bit AIX compiles 32-bit calls to the Dynamic Library Program command: gcc-maix32 test.c libt32.so-o T32

64-bit AIX compiles 64-bit calls to the Dynamic Library Program command: gcc-maix64 test.c libt64.so-o T64

View 32-bit static library export functions: NM *.A

View 64-bit static library export functions: nm-x64 *.A

View. So library files: file *.so

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64-bit Linux compile 32 program error message:/usr/include/gnu/stubs.h:7:27:error:gnu/stubs-32.h:no such file or directory

# yum-y Install glibc-devel.i386

1, 64 for Linux compilation if the program is compiled without the m64 parameter is still 64 bits

2, the compilation Directory execution export ld_library_path=./: $LD _library_path, can not find the current directory so library problems

3, 64-bit program in the header file definition plus #pragma pack (4) to indicate that the structure is aligned in four bytes, or there may be an int type of struct int type and close to a type interval 8 bytes of the case

When explicitly called, do not add "-L Library name" in Makefile, direct dlopen and then get function address call.
Implicit linking requires the inclusion of a header file plus "-L library name", which can be called directly.
Static links need to include the header file Plus "-L library name", the library should be. A library.

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Summary of compiler commands under Linux and AIX