[Bug gdb/12617] New: implement typed DWARF stack

[Bug gdb/12617] New: implement typed DWARF stack

[tromey at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12617

           Summary: implement typed DWARF stack
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: tromey@redhat.com


Typed DWARF stack patch for GCC:

http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01730.html

Cary's DWARF proposal:

http://www.dwarfstd.org/doc/040408.1.html

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[Bug gdb/12617] implement typed DWARF stack

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=12617

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2011-05-12 17:40:58 UTC ---
CVSROOT:    /cvs/src
Module name:    src
Changes by:    tromey@sourceware.org    2011-05-12 17:40:55

Modified files:
    gdb            : ChangeLog dwarf2-frame.c dwarf2expr.c 
                     dwarf2expr.h dwarf2loc.c dwarf2loc.h 
                     dwarf2read.c value.c value.h 
    gdb/testsuite  : ChangeLog 
Added files:
    gdb/testsuite/gdb.dwarf2: typeddwarf.S typeddwarf.c 
                              typeddwarf.exp 

Log message:
    gdb
    PR gdb/12617:
    * value.h (value_from_contents): Declare.
    * value.c (value_from_contents): New function.
    * dwarf2read.c (dwarf_stack_op_name): Add new values.
    (dwarf2_get_die_type): New function.
    * dwarf2loc.c (dwarf_expr_get_base_type): New function.
    (allocate_piece_closure): Acquire reference to values.
    (read_pieced_value): Update for value-based expressions.
    (write_pieced_value): Likewise.
    (free_pieced_value_closure): Call value_free as needed.
    (dwarf2_evaluate_loc_desc_full): Set get_base_type field.
    Update for value-based expressions.
    * dwarf2loc.h (dwarf2_get_die_type): Declare.
    * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type.
    <get_base_type>: New field.
    (struct dwarf_expr_piece) <v.value>: Change type.
    <v.regno>: New field.
    (struct dwarf_expr_context) <mark>: New field.
    (dwarf_expr_piece, dwarf_expr_fetch): Update.
    (dwarf_expr_pop, dwarf_expr_push): Remove.
    (dwarf_expr_push_address): Declare.
    * dwarf2expr.c (dwarf_arch_cookie): New global.
    (struct dwarf_gdbarch_types): New.
    (dwarf_gdbarch_types_init, dwarf_expr_address_type): New
    functions.
    (dwarf_expr_push): Change type of 'value' argument.  Update.  Now
    static.
    (dwarf_expr_push_address): New function.
    (dwarf_expr_pop): Now static.
    (dwarf_expr_fetch): Change return type.
    (dwarf_require_integral): New function.
    (dwarf_expr_fetch): Simplify.
    (add_piece): Update.
    (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New
    functions.
    (execute_stack_op) <sign_ext>: Remove.
    Use values for DWARF stack.
    <DW_OP_GNU_const_type, DW_OP_GNU_deref_type,
    DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>:
    New cases.
    (_initialize_dwarf2expr): New function.
    (add_piece): Update.
    (new_dwarf_expr_context): Set new field.
    (free_dwarf_expr_context): Call value_free_to_mark.
    * dwarf2-frame.c (no_base_type): New function.
    (execute_stack_op): Set get_base_type field.  Update.
    gdb/testsuite
    * gdb.dwarf2/typeddwarf.S: New file.
    * gdb.dwarf2/typeddwarf.c: New file.
    * gdb.dwarf2/typeddwarf.exp: New file.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.12997&r2=1.12998
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2-frame.c.diff?cvsroot=src&r1=1.121&r2=1.122
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2expr.c.diff?cvsroot=src&r1=1.57&r2=1.58
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2expr.h.diff?cvsroot=src&r1=1.32&r2=1.33
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2loc.c.diff?cvsroot=src&r1=1.115&r2=1.116
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2loc.h.diff?cvsroot=src&r1=1.22&r2=1.23
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/dwarf2read.c.diff?cvsroot=src&r1=1.532&r2=1.533
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/value.c.diff?cvsroot=src&r1=1.139&r2=1.140
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/value.h.diff?cvsroot=src&r1=1.179&r2=1.180
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.2705&r2=1.2706
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/typeddwarf.S.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/typeddwarf.c.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/typeddwarf.exp.diff?cvsroot=src&r1=NONE&r2=1.1

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[Bug gdb/12617] implement typed DWARF stack

[tromey at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12617

Tom Tromey <tromey at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |7.4

--- Comment #2 from Tom Tromey <tromey at redhat dot com> 2011-05-12 17:44:49 UTC ---
Committed.

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