1 files changed, 48 insertions, 0 deletions
diff --git a/binutils-1.9/gmon.h b/binutils-1.9/gmon.h
new file mode 100644
index 0000000..02f12fb
--- /dev/null
+++ b/binutils-1.9/gmon.h
@@ -0,0 +1,48 @@
+/* Format of gmon.out file.  */
+
+/* This header appears at the beginning of the gmon.out file.
+   LOW and HIGH are low and high water marks for the program counter
+   during the creation of the gmon.out file.
+   LOW is also the offset where the histogram table starts in the
+   text (code) segment.
+   NBYTES is the number of bytes in this header plus the histogram itself,
+   which immediately follows the header in the file.
+
+   Therefore, the number of histogram entries is
+   (NBYTES - sizeof (struct gm_header)) / (sizeof (CHUNK)).
+
+   Each entry applies to a range of PC values.
+   The first entry applies to PC values starting at LOW.
+   The last entry applies to PC values ending at HIGH.
+   Therefore, the span of each entry's range is
+       (HIGH - LOW) / number-of-entries
+   Usually this value is 4.
+*/
+
+struct gm_header {
+	unsigned long low;
+	unsigned long high;
+	long nbytes;
+};
+
+/* Data type of an entry in the PC histogram.  */
+#define CHUNK	short
+
+/* After the histogram cone the function call count entries.
+   They fill all the rest of the file.
+   Each count entry records the number of calls to one function
+   from one pc value.
+
+   FROM describes the caller pc, as an offset into the text segment.
+   TO is the address of the called function.
+   NCALLS is the number of calls counted from FROM to TO.
+
+   Note that if a function A is called from several places in B,
+   there are separate call count entries for each call, with different FROM.
+   All of them together count the number of calls from B to A.  */
+
+struct gm_call {
+	unsigned long from;
+	unsigned long to;
+	unsigned long ncalls;
+};