I got this error when running sparse on mips kernel with gcc 4.3:
builtin:272:1: warning: Newline in string or character constant
The linus-mips kernel uses '$(CC) -dM -E' to generates arguments for
sparse. With gcc 4.3, it generates lot of '-D' options and causes
pre_buffer overflow.
This patch increase pre_buffer[] size and add extra checking for
overflow instead of silently truncating.
Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
---
diff --git a/lib.c b/lib.c
index 0abcc9a..b8b2d57 100644
--- a/lib.c
+++ b/lib.c
@@ -186,7 +186,7 @@ void die(const char *fmt, ...)
}
static unsigned int pre_buffer_size;
-static char pre_buffer[8192];
+static char pre_buffer[16384];
int Waddress_space = 1;
int Wbitwise = 0;
@@ -238,6 +238,8 @@ void add_pre_buffer(const char *fmt, ...)
fmt, args);
pre_buffer_size = size;
va_end(args);
+ if (pre_buffer_size >= sizeof(pre_buffer) - 1)
+ die("pre_buffer overflow");
}
static char **handle_switch_D(char *arg, char **next)
