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* [Bug c++/17976] New: ptype (anonymous namespace) doesn't work
@ 2015-02-13 19:40 dje at google dot com
2015-02-22 6:01 ` [Bug c++/17976] " cvs-commit at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: dje at google dot com @ 2015-02-13 19:40 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17976
Bug ID: 17976
Summary: ptype (anonymous namespace) doesn't work
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: c++
Assignee: unassigned at sourceware dot org
Reporter: dje at google dot com
This is an extension of the research into PR 17821.
ptype (anonymous namespace) should work just like any "ptype namespace_foo".
(gdb) ptype '(anonymous namespace)'
No symbol "(anonymous namespace)" in current context.
Working on a fix ...
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* [Bug c++/17976] ptype (anonymous namespace) doesn't work
2015-02-13 19:40 [Bug c++/17976] New: ptype (anonymous namespace) doesn't work dje at google dot com
@ 2015-02-22 6:01 ` cvs-commit at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2015-02-22 6:01 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17976
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Doug Evans <devans@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=96553a0cffb30d2ac6068eb71bed38ea7432073b
commit 96553a0cffb30d2ac6068eb71bed38ea7432073b
Author: Doug Evans <dje@google.com>
Date: Sat Feb 21 21:58:31 2015 -0800
PR c++/17976, symtab/17821
This patch addresses two issues.
The basic problem is that "(anonymous namespace)" doesn't get entered
into the symbol table because when dwarf2read.c:new_symbol_full is called
the DIE has no name (dwarf2_name returns NULL).
PR 17976: ptype '(anonymous namespace)' should work like any namespace
PR 17821: perf issue looking up (anonymous namespace)
bash$ gdb monster-program
(gdb) mt set per on
(gdb) mt set symbol-cache-size 0
(gdb) break (anonymous namespace)::foo
Before:
Command execution time: 3.266289 (cpu), 6.169030 (wall)
Space used: 811429888 (+12910592 for this command)
After:
Command execution time: 1.264076 (cpu), 4.057408 (wall)
Space used: 798781440 (+0 for this command)
gdb/ChangeLog:
PR c++/17976, symtab/17821
* cp-namespace.c (cp_search_static_and_baseclasses): New parameter
is_in_anonymous. All callers updated.
(find_symbol_in_baseclass): Ditto.
(cp_lookup_nested_symbol_1): Ditto. Don't search all static blocks
for symbols in an anonymous namespace.
* dwarf2read.c (namespace_name): Don't call dwarf2_name, fetch
DW_AT_name directly.
(dwarf2_name): Convert missing namespace name to
CP_ANONYMOUS_NAMESPACE_STR.
gdeb/testsuite/ChangeLog:
* gdb.cp/anon-ns.exp: Add test for ptype '(anonymous namespace)'.
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2015-02-13 19:40 [Bug c++/17976] New: ptype (anonymous namespace) doesn't work dje at google dot com
2015-02-22 6:01 ` [Bug c++/17976] " cvs-commit at gcc dot gnu.org
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