gdb/

	PR 11804
	* defs.h (find_memory_region_ftype): New comment.  New arg modified.
	* fbsd-nat.c (fbsd_find_memory_regions): Add the passed modified value.
	* gcore.c (gcore_create_callback): New function comment.  Add modified
	parameter.  Only write modified regions.  Set SEC_READONLY exactly
	according to MODIFIED.
	(objfile_find_memory_regions): Ignore separate debug info files.  Ass
	the passed modified value to FUNC.
	* gnu-nat.c (gnu_find_memory_regions): Add the passed modified value.
	* linux-tdep.c (linux_find_memory_regions): Try to reads smaps file
	first.  New variables modified and has_anonymous.  Parse the lines of
	smaps file.  Add the passed MODIFIED value to FUNC.
	* procfs.c (find_memory_regions_callback): Add the passed modified
	value.

gdb/testsuite/
	PR 11804
	* gdb.base/gcore-relro.exp: New file.
	* gdb.base/gcore-relro-main.c: New file.
	* gdb.base/gcore-relro-lib.c: New file.

1 files changed, 6 insertions, 1 deletions

diff --git a/gdb/defs.h b/gdb/defs.h
index 7be99a2..de34740 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -362,9 +362,14 @@ extern void init_source_path (void);
 
 /* From exec.c */
 
+/* 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.  */
+
 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 					 int read, int write, int exec,
-					 void *data);
+					 int modified, void *data);
 
 /* Take over the 'find_mapped_memory' vector from exec.c.  */
 extern void exec_set_find_memory_regions