gdbserver: convert the global dll list into a process_info field

The 'all_dlls' list is global.  This would cause the complete dll list
to be reported for individual processes.  Move the list into the
process_info struct.

Currently the dll list is used only by the win32-low target, which
does not support the multi-process feature.  Therefore, it practically
does not matter whether the list is global or per-process.  However,
there may be targets that are outside the binutils-gdb repo (e.g. we,
at Intel, have such a target) that have multi-process and use the dll
list.  So, it makes sense to do the right thing.

gdbserver/ChangeLog:
2021-03-22  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	* inferiors.h (struct process_info) <all_dlls, dlls_changed>: New
	fields.
	* dll.h (loaded_dll)
	(unloaded_dll): Declare an overloaded version that takes a proc
	parameter.
	* dll.cc (loaded_dll)
	(unloaded_dll): Implement the overloaded versions.
	(clear_dlls): Clear all process' dll lists.
	(all_dlls, dlls_changed): Remove the global variables.
	* remote-utils.cc (prepare_resume_reply): Update to consider a dll
	list per proc.
	* server.cc (handle_qxfer_libraries): Ditto.
	(handle_v_attach): Ditto.
	(captured_main): Ditto.

1 files changed, 6 insertions, 3 deletions

diff --git a/gdbserver/dll.h b/gdbserver/dll.h
index 6707c52..2a29990 100644
--- a/gdbserver/dll.h
+++ b/gdbserver/dll.h
@@ -20,6 +20,8 @@
 
 #include <list>
 
+struct process_info;
+
 struct dll_info
 {
   dll_info (const std::string &name_, CORE_ADDR base_addr_)
@@ -30,11 +32,12 @@ struct dll_info
   CORE_ADDR base_addr;
 };
 
-extern std::list<dll_info> all_dlls;
-extern int dlls_changed;
-
 extern void clear_dlls (void);
 extern void loaded_dll (const char *name, CORE_ADDR base_addr);
+extern void loaded_dll (process_info *proc, const char *name,
+			CORE_ADDR base_addr);
 extern void unloaded_dll (const char *name, CORE_ADDR base_addr);
+extern void unloaded_dll (process_info *proc, const char *name,
+			  CORE_ADDR base_addr);
 
 #endif /* GDBSERVER_DLL_H */