| From bc160ef993ad87ae54417504c30bfa3d7c245656 Mon Sep 17 00:00:00 2001 |
| From: "Steven Rostedt (Google)" <rostedt@goodmis.org> |
| Date: Wed, 21 Dec 2022 13:49:03 -0500 |
| Subject: [PATCH] libtracefs: Make sure 32 bit works on 64 bit file systems |
| |
| As stat() can overflow if a 32 bit user space reads a file on a file |
| system that has inodes greater than MAX_INT. Compile with |
| _FILE_OFFSET_BITS=64 that mitigates this problem on 32 bit user space. |
| |
| Reported-by: Mike Frysinger <vapier@google.com> |
| Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
| --- |
| Makefile | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/Makefile b/Makefile |
| index 27d425c..36c2076 100644 |
| --- a/Makefile |
| +++ b/Makefile |
| @@ -164,6 +164,9 @@ export INCLUDES |
| # Append required CFLAGS |
| override CFLAGS += -D_GNU_SOURCE $(LIBTRACEEVENT_INCLUDES) $(INCLUDES) |
| |
| +# Make sure 32 bit stat() works on large file systems |
| +override CFLAGS += -D_FILE_OFFSET_BITS=64 |
| + |
| all: all_cmd |
| |
| LIB_TARGET = libtracefs.a libtracefs.so.$(TRACEFS_VERSION) |
| -- |
| 2.39.0.314.g84b9a713c41-goog |
| |
