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Introduce program_space::remove_objfile

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This introduces a new method, program_space::remove_objfile, and
changes the objfile destructor not to unlink an objfile from the
program space's list.

This is cleaner because, like the previous patch, it treats the
program space more like a container for objfiles.  Also, this makes it
possible to keep an objfile alive even though it has been unlinked
from the program space's list, which is important for processing in a
worker thread.

gdb/ChangeLog
2019-12-12  Tom Tromey  <tom@tromey.com>

	* progspace.h (struct program_space) <remove_objfile>: Declare.
	* progspace.c (program_space::remove_objfile): New method.
	* objfiles.c (unlink_objfile): Remove.
	(objfile::unlink): Call remove_objfile.
	(objfile): Don't call unlink_objfile.

Change-Id: I22f768827723dce21886fae9b3664532c8349e68
This commit is contained in:
Tom Tromey 2019-11-01 16:42:29 -06:00
parent 7cac64af7b
commit 234529260a
4 changed files with 36 additions and 28 deletions
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gdb/progspace.h
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@ -170,6 +170,8 @@ struct program_space
list. */
void add_objfile (struct objfile *objfile, struct objfile *before);
/* Remove OBJFILE from the list of objfiles. */
void remove_objfile (struct objfile *objfile);
/* Pointer to next in linked list. */
struct program_space *next = NULL;