Patch attached.
From d3c62d48f87044d7607d81559c58ae06df5839af Mon Sep 17 00:00:00 2001
From: Ken Brown <kbr...@cornell.edu>
Date: Fri, 20 Dec 2024 12:17:34 -0500
Subject: [PATCH 2/5] Cygwin: mmap: remove is_mmapped_region()
The last use was removed in commit 29a126322783 ("Simplify stack
allocation code in child after fork").
Signed-off-by: Ken Brown <kbr...@cornell.edu>
---
winsup/cygwin/local_includes/winsup.h | 1 -
winsup/cygwin/mm/mmap.cc | 34 ---------------------------
2 files changed, 35 deletions(-)
diff --git a/winsup/cygwin/local_includes/winsup.h
b/winsup/cygwin/local_includes/winsup.h
index 38313962d96c..6841d4a59fb4 100644
--- a/winsup/cygwin/local_includes/winsup.h
+++ b/winsup/cygwin/local_includes/winsup.h
@@ -239,7 +239,6 @@ enum mmap_region_status
MMAP_NORESERVE_COMMITED
};
mmap_region_status mmap_is_attached_or_noreserve (void *addr, size_t len);
-bool is_mmapped_region (caddr_t start_addr, caddr_t end_address);
extern inline bool flush_file_buffers (HANDLE h)
{
diff --git a/winsup/cygwin/mm/mmap.cc b/winsup/cygwin/mm/mmap.cc
index acab85d19cf0..13e64c23256c 100644
--- a/winsup/cygwin/mm/mmap.cc
+++ b/winsup/cygwin/mm/mmap.cc
@@ -722,40 +722,6 @@ mmap_areas::del_list (mmap_list *ml)
cfree (ml);
}
-/* This function allows an external function to test if a given memory
- region is part of an mmapped memory region. */
-bool
-is_mmapped_region (caddr_t start_addr, caddr_t end_address)
-{
- size_t len = end_address - start_addr;
-
- LIST_READ_LOCK ();
- mmap_list *map_list = mmapped_areas.get_list_by_fd (-1, NULL);
-
- if (!map_list)
- {
- LIST_READ_UNLOCK ();
- return false;
- }
-
- mmap_record *rec;
- caddr_t u_addr;
- SIZE_T u_len;
- bool contains;
- bool ret = false;
-
- LIST_FOREACH (rec, &map_list->recs, mr_next)
- {
- if (rec->match (start_addr, len, u_addr, u_len, contains))
- {
- ret = true;
- break;
- }
- }
- LIST_READ_UNLOCK ();
- return ret;
-}
-
/* This function is called from exception_handler when a segmentation
violation has occurred. It should also be called from all Cygwin
functions that want to support passing noreserve (anonymous) mmap
--
2.45.1
