commit d817edc29c8249520601ac62054c78254bf18f97
author Alan Modra <amodra@gmail.com> Wed Aug 31 12:34:36 2016 +0930
committer Alan Modra <amodra@gmail.com> Wed Feb 22 09:40:19 2017 +1030
tree ccdeccd602d22b47954f3b3d20aa090711653ca0
parent 2ec4b4a8bc3b056b710710fc24ecdd19d6c9670a

[GOLD] Add debug output for powerpc section grouping

	* debug.h (DEBUG_TARGET): New.
	(DEBUG_ALL): Add DEBUG_TARGET.
	(gold_debug): Delete FORMAT param.
	* powerpc.cc (Stub_control::can_add_to_stub_group): Print debug ourput.

gold/ChangeLog

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 966aa2f..24dcf16 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,6 +1,12 @@
 2017-02-22  Alan Modra  <amodra@gmail.com>
 
 	Apply from master
+	2016-08-31  Alan Modra  <amodra@gmail.com>
+	* debug.h (DEBUG_TARGET): New.
+	(DEBUG_ALL): Add DEBUG_TARGET.
+	(gold_debug): Delete FORMAT param.
+	* powerpc.cc (Stub_control::can_add_to_stub_group): Print debug ourput.
+
 	2016-08-30  Alan Modra  <amodra@gmail.com>
 	PR 20523
 	* powerpc.cc (class Stub_control): Add has14_.  Comment owner_.

gold/debug.h

diff --git a/gold/debug.h b/gold/debug.h
index e95408f..6fd72c2 100644
--- a/gold/debug.h
+++ b/gold/debug.h
@@ -39,10 +39,11 @@
 const int DEBUG_RELAXATION = 0x8;
 const int DEBUG_INCREMENTAL = 0x10;
 const int DEBUG_LOCATION = 0x20;
+const int DEBUG_TARGET = 0x40;
 
 const int DEBUG_ALL = (DEBUG_TASK | DEBUG_SCRIPT | DEBUG_FILES
 		       | DEBUG_RELAXATION | DEBUG_INCREMENTAL
-		       | DEBUG_LOCATION);
+		       | DEBUG_LOCATION | DEBUG_TARGET);
 
 // Convert a debug string to the appropriate enum.
 inline int
@@ -57,6 +58,7 @@
     { "relaxation", DEBUG_RELAXATION },
     { "incremental", DEBUG_INCREMENTAL },
     { "location", DEBUG_LOCATION },
+    { "target", DEBUG_TARGET },
     { "all", DEBUG_ALL }
   };
 
@@ -70,11 +72,11 @@
 // Print a debug message if TYPE is enabled.  This is a macro so that
 // we only evaluate the arguments if necessary.
 
-#define gold_debug(TYPE, FORMAT, ...)				\
+#define gold_debug(TYPE, ...)					\
   do								\
     {								\
       if (is_debugging_enabled(TYPE))				\
-	parameters->errors()->debug(FORMAT, __VA_ARGS__);	\
+	parameters->errors()->debug(__VA_ARGS__);		\
     }								\
   while (0)
 

gold/powerpc.cc

diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index d0dd672..1d5cd97 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -2522,6 +2522,13 @@
 		 i->relobj()->name().c_str(),
 		 i->relobj()->section_name(i->shndx()).c_str());
 
+  gold_debug(DEBUG_TARGET, "maybe add%s %s:%s size=%#llx total=%#llx",
+	     has14 ? " 14bit" : "",
+	     i->relobj()->name().c_str(),
+	     i->relobj()->section_name(i->shndx()).c_str(),
+	     (long long) this_size,
+	     (long long) this->group_end_addr_ - start_addr);
+
   this->has14_ = this->has14_ || has14;
   group_size = this->has14_ ? this->stub14_group_size_ : this->stub_group_size_;
 
@@ -2579,6 +2586,8 @@
 	gold_unreachable();
     }
 
+  gold_debug(DEBUG_TARGET, "nope, didn't fit\n");
+
   // The section fails to fit in the current group.  Set up a few
   // things for the next group.  owner_ and output_section_ will be
   // set later after we've retrieved those values for the current