Refactor and expose core-dumping functionality

This commit exposes the functions that dump core outside utils.c.
can_dump_core gains a new parameter, "limit_kind", to allow either
the soft or hard limit to be checked, and its printing has separated
into the new function warn_cant_dump_core.  The new function
can_dump_core_warn does what can_dump_core previously did (print and
warn).

gdb/
2014-06-19  Gary Benson  <gbenson@redhat.com>

	* utils.h (resource_limit_kind): New enum.
	(can_dump_core): New declaration.
	(warn_cant_dump_core): Likewise.
	(dump_core): Likewise.
	* utils.c (dump_core): Made nonstatic.  Added new
	parameter "limit_kind".
	(can_dump_core): Made nonstatic. Moved printing code to...
	(warn_cant_dump_core): New function.
	(can_dump_core_warn): Likewise.
	(internal_vproblem): Replace calls to can_dump_core with
	calls to can_dump_core_warn.  Supply new argument to each.

1 files changed, 24 insertions, 0 deletions

diff --git a/gdb/utils.h b/gdb/utils.h
index 9a10281..a91f551 100644
--- a/gdb/utils.h
+++ b/gdb/utils.h
@@ -372,4 +372,28 @@ extern ULONGEST align_down (ULONGEST v, int n);
 
 extern LONGEST gdb_sign_extend (LONGEST value, int bit);
 
+/* Resource limits used by getrlimit and setrlimit.  */
+
+enum resource_limit_kind
+  {
+    LIMIT_CUR,
+    LIMIT_MAX
+  };
+
+/* Check whether GDB will be able to dump core using the dump_core
+   function.  Returns zero if GDB cannot or should not dump core.
+   If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
+   If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected.  */
+
+extern int can_dump_core (enum resource_limit_kind limit_kind);
+
+/* Print a warning that we cannot dump core.  */
+
+extern void warn_cant_dump_core (const char *reason);
+
+/* Dump core trying to increase the core soft limit to hard limit
+   first.  */
+
+extern void dump_core (void);
+
 #endif /* UTILS_H */