diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 310f9c7eb6c..2231f358ab9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,19 @@
+2024-12-08  Lewis Hyatt  <lhyatt@gmail.com>
+
+	* gimple.h (struct gphi): Update word marking comments to reflect
+	the new size of location_t.
+	(struct gimple): Likewise. Add a comment about padding.
+	* common.opt: Mark -flarge-source-files as Ignored.
+	* common.opt.urls: Regenerate.
+	* doc/invoke.texi: Remove -flarge-source-files.
+	* toplev.cc (process_options): Remove support for
+	-flarge-source-files.
+
+2024-12-08  Dimitar Dimitrov  <dimitar@dinux.eu>
+
+	* config/pru/pru.cc (pru_print_operand): Implement c and n
+	inline assembly operand modifiers.
+
 2024-12-07  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* config/sparc/sparc.md (VIS4B instructions): Add comments.
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index f4039d392c2..775d8f2db22 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20241208
+20241209
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 92fbda8bf30..e316052da99 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,18 @@
+2024-12-08  Lewis Hyatt  <lhyatt@gmail.com>
+
+	* g++.dg/diagnostic/pr77949.C: Adapt the test for 64-bit location_t,
+	when the previously expected failure doesn't actually happen.
+	* g++.dg/modules/loc-prune-4.C: Adjust the expected output for the
+	64-bit location_t case.
+	* gcc.dg/plugin/expensive_selftests_plugin.cc: Don't try to test
+	the maximum supported column number in 64-bit location_t mode.
+	* gcc.dg/plugin/location_overflow_plugin.cc: Adjust the base_location
+	so it can effectively test 64-bit location_t.
+
+2024-12-08  Dimitar Dimitrov  <dimitar@dinux.eu>
+
+	* gcc.target/pru/asm-op-modifier.c: New test.
+
 2024-12-07  Gaius Mulley  <gaiusmod2@gmail.com>
 
 	PR modula2/117948
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 2345614fc69..a6aff265057 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,21 @@
+2024-12-08  Lewis Hyatt  <lhyatt@gmail.com>
+
+	* include/cpplib.h (struct cpp_token): Adjust comment about the
+	struct size.
+	* include/line-map.h (location_t): Change typedef from 32-bit to 64-bit
+	integer.
+	(LINE_MAP_MAX_COLUMN_NUMBER): Increase size to be appropriate for
+	64-bit location_t.
+	(LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): Likewise.
+	(LINE_MAP_MAX_LOCATION_WITH_COLS): Likewise.
+	(LINE_MAP_MAX_LOCATION): Likewise.
+	(MAX_LOCATION_T): Likewise.
+	(line_map_suggested_range_bits): Likewise.
+	(struct line_map): Adjust comment about the struct size.
+	(struct line_map_macro): Likewise.
+	(struct line_map_ordinary): Likewise. Rearrange fields to optimize
+	padding.
+
 2024-12-06  Jakub Jelinek  <jakub@redhat.com>
 
 	* files.cc (finish_embed): Use CPP_EMBED even for C++.