[Bug python/25261] New: [dwz-with-cc-m] FAIL: gdb.python/py-symbol.exp: print (len (gdb.lookup_static_symbols ('rr')))

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=25261

            Bug ID: 25261
           Summary: [dwz-with-cc-m] FAIL: gdb.python/py-symbol.exp: print
                    (len (gdb.lookup_static_symbols ('rr')))
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: python
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

With target board, we run into a FAIL because we expect a length of 2 here, but
get 5:
...
(gdb) python print (len (gdb.lookup_static_symbols ('rr')))^M
5^M
(gdb) FAIL: gdb.python/py-symbol.exp: print (len (gdb.lookup_static_symbols
('rr')))
...

In more detail, we get:
...
(gdb) python print (gdb.lookup_static_symbols ('rr')[0].value ())
99
(gdb) python print (gdb.lookup_static_symbols ('rr')[1].value ())
42
(gdb) python print (gdb.lookup_static_symbols ('rr')[2].value ())
42
(gdb) python print (gdb.lookup_static_symbols ('rr')[3].value ())
42
(gdb) python print (gdb.lookup_static_symbols ('rr')[4].value ())
42
...

The interesting bit is that the rr DWARF records are actually not moved into a
partial unit. Only the type is moved into the alt file:
...
 <1><100>: Abbrev Number: 11 (DW_TAG_variable)
    <101>   DW_AT_name        : rr
    <104>   DW_AT_decl_file   : 1
    <105>   DW_AT_decl_line   : 46
    <106>   DW_AT_type        : <alt 0xc5>
    <10a>   DW_AT_location    : 9 byte block: 3 2c 10 60 0 0 0 0 0     
(DW_OP_addr: 60102c)
 <1><20f>: Abbrev Number: 11 (DW_TAG_variable)
    <210>   DW_AT_name        : rr
    <213>   DW_AT_decl_file   : 1
    <214>   DW_AT_decl_line   : 18
    <215>   DW_AT_type        : <alt 0xc5>
    <219>   DW_AT_location    : 9 byte block: 3 30 10 60 0 0 0 0 0     
(DW_OP_addr: 601030)
...

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