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Re: [PATCH,fortran]: Emit COMMON identifiers in proper debug scope

Fixes fortran/PR35154, fortran/PR23057.

Modified from earlier submission based on comments received; sorry for any repetition.

It consists of three parts, two already approved, one new.  They are
grouped at FX Coudert's request; see

Component parts are:

1) to fortran/trans-common.c to emit .stabs debug information in the
proper scope for COMMON block variables by linking them to the function
scope rather than the global scope.  This is approved; see above link.

2) to dbxout.c and the testsuite to change how .stabs debug information
is emitted for COMMON block variables.  This was submitted and approved
in Aug. 2004 but never committed.  History is here:
Now modified based on comments received.

3) to dwarf2out.c and the testsuite to change the way DWARF-2 debug information
is emitted for COMMON block variables in an analogous way as .stabs, using
DW_TAG_common_block. This is new. Now modified based on comments received.

New testsuite component updated to GCC3 license.

Bootstraps gcc, g++, objc and gfortran on powerpc-apple-darwin8.8.0,
i386-apple-darwin8.10.1, sparc64-unknown-freebsd6.0. There are no testsuite
regressions against this patch for gfortran, gcc, objc or g++. Verified
gdb functionality on i386-apple-darwin8.10.1 (-gstabs),
powerpc-apple-darwin8.8.0 (-gstabs) and sparc64-unknown-freebsd6.0 (-gstabs and

OK to commit to trunk?

George Helffrich

Attachment: gfortran.patch
Description: Binary data

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