[AMD Official Use Only - Internal Distribution Only]

Hi all,

I request you all to please review this patch. Below are the details.

Problem Description:

Name of fortran main function for Flang compiler is MAIN_ while
for gfortran it is MAIN__ . In test cases MAIN__ is hardcoded for
the purpose of inserting breakpoint.
(please note the number of underscores after MAIN) 

Resolution:

New proc is added to detect main function name depending on the
compiler used. Which is used in testcases.

This commit adds support for Flang main function, there should be
no change for gfortran.

    gdb/testsuite/ChangeLog

            * gdb.dwarf2/dw2-common-block.exp: Skip test except for gfortran,
            as assembly file to be tested is generated by gfortran.
            * lib/fortran.exp (fortran_main): New Proc, handle flang MAIN_.
            * gdb.fortran/array-bounds-high.exp: Handle flang MAIN_
            * gdb.fortran/array-bounds.exp: Likewise.
            * gdb.fortran/array-slices.exp: Likewise.
            * gdb.fortran/block-data.exp: Likewise.
            * gdb.fortran/charset.exp: Likewise.
            * gdb.fortran/common-block.exp: Likewise.
            * gdb.fortran/complex.exp: Likewise.
            * gdb.fortran/derived-type-function.exp: Likewise.
            * gdb.fortran/derived-type.exp: Likewise.
            * gdb.fortran/info-modules.exp: Likewise.
            * gdb.fortran/info-types.exp: Likewise.
            * gdb.fortran/intrinsics.exp: Likewise.
            * gdb.fortran/library-module.exp: Likewise.
            * gdb.fortran/logical.exp: Likewise.
            * gdb.fortran/max-depth.exp: Likewise.
            * gdb.fortran/module.exp: Likewise.
            * gdb.fortran/multi-dim.exp: Likewise.
            * gdb.fortran/nested-funcs.exp: Likewise.
            * gdb.fortran/print-formatted.exp: Likewise.
            * gdb.fortran/print_type.exp: Likewise.
            * gdb.fortran/printing-types.exp: Likewise.
            * gdb.fortran/ptr-indentation.exp: Likewise.
            * gdb.fortran/ptype-on-functions.exp: Likewise.
            * gdb.fortran/subarray.exp: Likewise.
            * gdb.fortran/vla-alloc-assoc.exp: Likewise.
            * gdb.fortran/vla-datatypes.exp: Likewise.
            * gdb.fortran/vla-history.exp: Likewise.
            * gdb.fortran/vla-ptr-info.exp: Likewise.
            * gdb.fortran/vla-ptype-sub.exp: Likewise.
            * gdb.fortran/vla-ptype.exp: Likewise.
            * gdb.fortran/vla-sizeof.exp: Likewise.
            * gdb.fortran/vla-type.exp: Likewise.
            * gdb.fortran/vla-value-sub-arbitrary.exp: Likewise.
            * gdb.fortran/vla-value-sub-finish.exp: Likewise.
            * gdb.fortran/vla-value-sub.exp: Likewise.
            * gdb.fortran/vla-value.exp: Likewise.
            * gdb.fortran/whatis_type.exp: Likewise.
            * gdb.mi/mi-var-child-f.exp: Likewise.

Please let me know your comments.

Regards,
Alok