Mark pieces of values as unavailable if the corresponding memory

	is unavailable.

	gdb/
	* valops.c: Include tracepoint.h.
	(value_fetch_lazy): Use read_value_memory.
	(read_value_memory): New.
	* value.h (read_value_memory): Declare.
	* dwarf2loc.c (read_pieced_value): Use read_value_memory.
	* exec.c (section_table_available_memory): New function.
	* exec.h (section_table_available_memory): Declare.

1 files changed, 12 insertions, 0 deletions

diff --git a/gdb/exec.h b/gdb/exec.h
index 8af2adf..a8df608 100644
--- a/gdb/exec.h
+++ b/gdb/exec.h
@@ -23,6 +23,7 @@
 
 #include "target.h"
 #include "progspace.h"
+#include "memrange.h"
 
 struct target_section;
 struct target_ops;
@@ -44,6 +45,17 @@ extern int build_section_table (struct bfd *, struct target_section **,
 
 extern int resize_section_table (struct target_section_table *, int);
 
+/* Appends all read-only memory ranges found in the target section
+   table defined by SECTIONS and SECTIONS_END, starting at (and
+   intersected with) MEMADDR for LEN bytes.  Returns the augmented
+   VEC.  */
+
+extern VEC(mem_range_s) *
+  section_table_available_memory (VEC(mem_range_s) *ranges,
+				  CORE_ADDR memaddr, LONGEST len,
+				  struct target_section *sections,
+				  struct target_section *sections_end);
+
 /* Read or write from mappable sections of BFD executable files.
 
    Request to transfer up to LEN 8-bit bytes of the target sections