Document the memory_tagged argument for memory region callbacks

There were no comments in some instances (gdb/defs.h, gdb/core.c and
gdb/linux-tdep.c), so address that by adding comments where those are missing.

1 files changed, 6 insertions, 2 deletions

diff --git a/gdb/defs.h b/gdb/defs.h
index 0d9a39a..f51ab9e 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -340,8 +340,12 @@ extern const char *pc_prefix (CORE_ADDR);
 /* * Process memory area starting at ADDR with length SIZE.  Area is
    readable iff READ is non-zero, writable if WRITE is non-zero,
    executable if EXEC is non-zero.  Area is possibly changed against
-   its original file based copy if MODIFIED is non-zero.  DATA is
-   passed without changes from a caller.  */
+   its original file based copy if MODIFIED is non-zero.
+
+   MEMORY_TAGGED is true if the memory region contains memory tags, false
+   otherwise.
+
+   DATA is passed without changes from a caller.  */
 
 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 					 int read, int write, int exec,