gdb: spread a little 'const' through the target_section_table code

The code to access the target section table can be made more const, so
lets do that.  There should be no user visible changes after this
commit.

gdb/ChangeLog:

	* gdb/bfd-target.c (class target_bfd) <get_section_table>: Make
	return type const.
	* gdb/exec.c (struct exec_target) <get_section_table>: Likewise.
	(section_table_read_available_memory): Make local const.
	(exec_target::xfer_partial): Make local const.
	(print_section_info): Make parameter const.
	* gdb/exec.h (print_section_info): Likewise.
	* gdb/ppc64-tdep.c (ppc64_convert_from_func_ptr_addr): Make local
	const.
	* gdb/record-btrace.c (record_btrace_target::xfer_partial):
	Likewise.
	* gdb/remote.c (remote_target::remote_xfer_live_readonly_partial):
	Likewise.
	* gdb/s390-tdep.c (s390_load): Likewise.
	* gdb/solib-dsbt.c (scan_dyntag): Likewise.
	* gdb/solib-svr4.c (scan_dyntag): Likewise.
	* gdb/target-debug.h (target_debug_print_target_section_table_p):
	Rename to...
	(target_debug_print_const_target_section_table_p): ...this.
	* gdb/target-delegates.c: Regenerate.
	* gdb/target.c (target_get_section_table): Make return type const.
	(target_section_by_addr): Likewise.  Also make some locals const.
	(memory_xfer_partial_1): Make some locals const.
	* gdb/target.h (struct target_ops) <get_section_table>: Make
	return type const.
	(target_section_by_addr): Likewise.
	(target_get_section_table): Likewise.

1 files changed, 7 insertions, 7 deletions

diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index 437b19b..69fbc0f 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -77,7 +77,7 @@ struct dummy_target : public target_ops
   void rcmd (const char *arg0, struct ui_file *arg1) override;
   char *pid_to_exec_file (int arg0) override;
   void log_command (const char *arg0) override;
-  target_section_table *get_section_table () override;
+  const target_section_table *get_section_table () override;
   thread_control_capabilities get_thread_control_capabilities () override;
   bool attach_no_wait () override;
   bool can_async_p () override;
@@ -248,7 +248,7 @@ struct debug_target : public target_ops
   void rcmd (const char *arg0, struct ui_file *arg1) override;
   char *pid_to_exec_file (int arg0) override;
   void log_command (const char *arg0) override;
-  target_section_table *get_section_table () override;
+  const target_section_table *get_section_table () override;
   thread_control_capabilities get_thread_control_capabilities () override;
   bool attach_no_wait () override;
   bool can_async_p () override;
@@ -2021,27 +2021,27 @@ debug_target::log_command (const char *arg0)
   fputs_unfiltered (")\n", gdb_stdlog);
 }
 
-target_section_table *
+const target_section_table *
 target_ops::get_section_table ()
 {
   return this->beneath ()->get_section_table ();
 }
 
-target_section_table *
+const target_section_table *
 dummy_target::get_section_table ()
 {
   return NULL;
 }
 
-target_section_table *
+const target_section_table *
 debug_target::get_section_table ()
 {
-  target_section_table * result;
+  const target_section_table * result;
   fprintf_unfiltered (gdb_stdlog, "-> %s->get_section_table (...)\n", this->beneath ()->shortname ());
   result = this->beneath ()->get_section_table ();
   fprintf_unfiltered (gdb_stdlog, "<- %s->get_section_table (", this->beneath ()->shortname ());
   fputs_unfiltered (") = ", gdb_stdlog);
-  target_debug_print_target_section_table_p (result);
+  target_debug_print_const_target_section_table_p (result);
   fputs_unfiltered ("\n", gdb_stdlog);
   return result;
 }