From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [RFA 11/23] Remove make_cleanup_free_so
Date: Wed, 03 May 2017 22:46:00 -0000 [thread overview]
Message-ID: <20170503224626.2818-12-tom@tromey.com> (raw)
In-Reply-To: <20170503224626.2818-1-tom@tromey.com>
make_cleanup_free_so is used in a single spot. This patch introduces
a unique pointer wrapper for struct so_list, and changes this spot to
use it.
2017-05-02 Tom Tromey <tom@tromey.com>
* utils.h (make_cleanup_free_so): Remove.
* utils.c (do_free_so, make_cleanup_free_so): Remove.
* solist.h (struct so_deleter): New.
(so_list_up): New typedef.
* solib-svr4.c (svr4_read_so_list): Use so_list_up.
---
gdb/ChangeLog | 8 ++++++++
gdb/solib-svr4.c | 24 ++++++------------------
gdb/solist.h | 12 ++++++++++++
gdb/utils.c | 18 ------------------
gdb/utils.h | 3 ---
5 files changed, 26 insertions(+), 39 deletions(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1c3b738..ddf87a3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
2017-05-02 Tom Tromey <tom@tromey.com>
+ * utils.h (make_cleanup_free_so): Remove.
+ * utils.c (do_free_so, make_cleanup_free_so): Remove.
+ * solist.h (struct so_deleter): New.
+ (so_list_up): New typedef.
+ * solib-svr4.c (svr4_read_so_list): Use so_list_up.
+
+2017-05-02 Tom Tromey <tom@tromey.com>
+
* utils.h (make_cleanup_restore_current_language): Remove.
* utils.c (do_restore_current_language)
(make_cleanup_restore_current_language): Remove.
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 080fd79..f99e2e2 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -1350,21 +1350,15 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm,
for (; lm != 0; prev_lm = lm, lm = next_lm)
{
- struct so_list *newobj;
- struct cleanup *old_chain;
int errcode;
char *buffer;
- newobj = XCNEW (struct so_list);
- old_chain = make_cleanup_free_so (newobj);
+ so_list_up newobj (XCNEW (struct so_list));
lm_info_svr4 *li = lm_info_read (lm);
newobj->lm_info = li;
if (li == NULL)
- {
- do_cleanups (old_chain);
- return 0;
- }
+ return 0;
next_lm = li->l_next;
@@ -1373,7 +1367,6 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm,
warning (_("Corrupted shared library list: %s != %s"),
paddress (target_gdbarch (), prev_lm),
paddress (target_gdbarch (), li->l_prev));
- do_cleanups (old_chain);
return 0;
}
@@ -1388,7 +1381,6 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm,
first_l_name = li->l_name;
info->main_lm_addr = li->lm_addr;
- do_cleanups (old_chain);
continue;
}
@@ -1404,7 +1396,6 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm,
if (first_l_name == 0 || li->l_name != first_l_name)
warning (_("Can't read pathname for load map: %s."),
safe_strerror (errcode));
- do_cleanups (old_chain);
continue;
}
@@ -1416,15 +1407,12 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm,
/* If this entry has no name, or its name matches the name
for the main executable, don't include it in the list. */
if (! newobj->so_name[0] || match_main (newobj->so_name))
- {
- do_cleanups (old_chain);
- continue;
- }
+ continue;
- discard_cleanups (old_chain);
newobj->next = 0;
- **link_ptr_ptr = newobj;
- *link_ptr_ptr = &newobj->next;
+ /* Don't free it now. */
+ **link_ptr_ptr = newobj.release ();
+ *link_ptr_ptr = &(**link_ptr_ptr)->next;
}
return 1;
diff --git a/gdb/solist.h b/gdb/solist.h
index 54c9902..5eb2d39 100644
--- a/gdb/solist.h
+++ b/gdb/solist.h
@@ -179,6 +179,18 @@ struct target_so_ops
/* Free the memory associated with a (so_list *). */
void free_so (struct so_list *so);
+/* A deleter that calls free_so. */
+struct so_deleter
+{
+ void operator() (struct so_list *so) const
+ {
+ free_so (so);
+ }
+};
+
+/* A unique pointer to a so_list. */
+typedef std::unique_ptr<so_list, so_deleter> so_list_up;
+
/* Return address of first so_list entry in master shared object list. */
struct so_list *master_so_list (void);
diff --git a/gdb/utils.c b/gdb/utils.c
index 1a66896..7d0b5f4 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -289,24 +289,6 @@ make_cleanup_value_free (struct value *value)
return make_cleanup (do_value_free, value);
}
-/* Helper for make_cleanup_free_so. */
-
-static void
-do_free_so (void *arg)
-{
- struct so_list *so = (struct so_list *) arg;
-
- free_so (so);
-}
-
-/* Make cleanup handler calling free_so for SO. */
-
-struct cleanup *
-make_cleanup_free_so (struct so_list *so)
-{
- return make_cleanup (do_free_so, so);
-}
-
/* Helper function for make_cleanup_clear_parser_state. */
static void
diff --git a/gdb/utils.h b/gdb/utils.h
index 1f01bdd..8f545c6 100644
--- a/gdb/utils.h
+++ b/gdb/utils.h
@@ -88,9 +88,6 @@ extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
extern struct cleanup *make_cleanup_value_free (struct value *);
-struct so_list;
-extern struct cleanup *make_cleanup_free_so (struct so_list *so);
-
/* A deleter for a hash table. */
struct htab_deleter
{
--
2.9.3
next prev parent reply other threads:[~2017-05-03 22:46 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-03 22:46 [RFA 00/23] More miscellaneous C++-ification Tom Tromey
2017-05-03 22:46 ` [RFA 01/23] Introduce and use ui_out_emit_table Tom Tromey
2017-06-02 17:04 ` Pedro Alves
2017-05-03 22:46 ` [RFA 03/23] Use gdb_file_up in find_and_open_script Tom Tromey
2017-06-02 17:24 ` Pedro Alves
2017-07-23 16:08 ` Tom Tromey
2017-05-03 22:46 ` [RFA 10/23] Remove make_cleanup_restore_current_language Tom Tromey
2017-06-02 18:18 ` Pedro Alves
2017-06-05 13:09 ` Tom Tromey
2017-05-03 22:46 ` [RFA 12/23] More uses of scoped_restore Tom Tromey
2017-06-02 18:31 ` Pedro Alves
2017-05-03 22:46 ` [RFA 20/23] Avoid some manual memory management in Python Tom Tromey
2017-06-05 13:55 ` Pedro Alves
2017-05-03 22:46 ` [RFA 23/23] Use gdb_argv_up " Tom Tromey
2017-06-05 16:29 ` Pedro Alves
2017-07-19 22:52 ` Tom Tromey
2017-07-19 22:51 ` Tom Tromey
2017-05-03 22:46 ` [RFA 02/23] Introduce and use gdb_file_up Tom Tromey
2017-06-02 17:08 ` Pedro Alves
2017-05-03 22:46 ` [RFA 09/23] Remove close cleanup Tom Tromey
2017-06-02 18:08 ` Pedro Alves
2017-07-19 22:52 ` Tom Tromey
2017-07-31 19:08 ` Simon Marchi
2017-08-01 21:52 ` Tom Tromey
2017-05-03 22:46 ` [RFA 08/23] Remove an unlink cleanup Tom Tromey
2017-06-02 17:37 ` Pedro Alves
2017-05-03 22:46 ` [RFA 21/23] Remove a cleanup in Python Tom Tromey
2017-06-05 13:56 ` Pedro Alves
2017-05-03 22:46 ` [RFA 14/23] Use unique_xmalloc_ptr in jit.c Tom Tromey
2017-06-02 18:42 ` Pedro Alves
2017-06-05 13:09 ` Tom Tromey
2017-05-03 22:46 ` Tom Tromey [this message]
2017-06-02 18:25 ` [RFA 11/23] Remove make_cleanup_free_so Pedro Alves
2017-05-03 22:46 ` [RFA 22/23] Make gdb_buildargv return a unique pointer Tom Tromey
2017-06-05 16:21 ` Pedro Alves
2017-07-23 17:26 ` Tom Tromey
2017-05-03 22:46 ` [RFA 18/23] Use a scoped_restore for command_nest_depth Tom Tromey
2017-06-05 13:38 ` Pedro Alves
2017-05-03 22:46 ` [RFA 06/23] Change open_terminal_stream to return a gdb_file_up Tom Tromey
2017-06-02 17:31 ` Pedro Alves
2017-05-03 22:46 ` [RFA 05/23] Use gdb_file_up in source.c Tom Tromey
2017-06-02 17:27 ` Pedro Alves
2017-05-03 22:46 ` [RFA 15/23] Use std::vector to avoid cleanups Tom Tromey
2017-06-02 19:22 ` Pedro Alves
2017-07-23 16:06 ` Tom Tromey
2017-05-03 22:46 ` [RFA 07/23] Remove make_cleanup_fclose Tom Tromey
2017-06-02 17:32 ` Pedro Alves
2017-05-03 22:46 ` [RFA 16/23] Remove in_user_command Tom Tromey
2017-06-05 13:27 ` Pedro Alves
2017-05-03 22:46 ` [RFA 19/23] Replace do_restore_instream_cleanup with scoped_restore Tom Tromey
2017-06-05 13:49 ` Pedro Alves
2017-05-03 22:46 ` [RFA 13/23] Replace tui_restore_gdbout " Tom Tromey
2017-06-02 18:34 ` Pedro Alves
2017-05-03 22:46 ` [RFA 17/23] Use a scoped_restore for user_call_depth Tom Tromey
2017-06-05 13:32 ` Pedro Alves
2017-06-05 16:56 ` Tom Tromey
2017-05-03 22:46 ` [RFA 04/23] Use gdb_file_up in fbsd-nat.c Tom Tromey
2017-05-03 23:52 ` John Baldwin
2017-05-29 17:31 ` [RFA 00/23] More miscellaneous C++-ification Tom Tromey
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