toplev.c (DUMPFILE_FORMAT): Define default.

[gcc.git] / gcc / doc / hostconfig.texi

diff --git a/gcc/doc/hostconfig.texi b/gcc/doc/hostconfig.texi
index f7a1c423e8fa3c86fb7302e2a05d58b2c67d4587..0aed7e13090e1721a8075193b058b425f27f3466 100644 (file)
--- a/gcc/doc/hostconfig.texi
+++ b/gcc/doc/hostconfig.texi
@@ -232,6 +232,15 @@ different buffer, the old path should be freed and the new buffer should
 have been allocated with malloc.
 @end table
 
+@findex DUMPFILE_FORMAT
+@item DUMPFILE_FORMAT
+Define this macro to be a C string representing the format to use
+for constructing the index part of the dump file name on your host machine.
+If you do not define this macro, GCC will use @samp{.%02d.}.  The full
+filename will be the prefix of the assembler file name concatenated with
+the string resulting from applying this format concatenated with a string
+unique to each dump file kind, e.g. @samp{rtl}.
+
 @findex bzero
 @findex bcmp
 In addition, configuration files for system V define @code{bcopy},