From: Øyvind Harboe <oyvind.harboe@zylin.com>
Date: Wed, 1 Dec 2010 14:28:56 +0000 (+0100)
Subject: profile: use 100Hz as a default sampling frequency
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=778b789c8ed44faadfb572c9a0eebb4e4a76a3aa;p=fw%2Fopenocd

profile: use 100Hz as a default sampling frequency

it's a lie that is somewhere in the vicinity of the
truth. Certainly 64MHz confuses gprof and produces
zero output and no error messages.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
---

diff --git a/src/target/target.c b/src/target/target.c
index 93efa762f..5cff9d081 100644
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -3077,7 +3077,7 @@ static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filenam
 
 	int addressSpace = (max-min + 1);
 
-	static const uint32_t maxBuckets = 256 * 1024; /* maximum buckets. */
+	static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
 	uint32_t length = addressSpace;
 	if (length > maxBuckets)
 	{
@@ -3104,7 +3104,7 @@ static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filenam
 	writeLong(f, min); 			/* low_pc */
 	writeLong(f, max);			/* high_pc */
 	writeLong(f, length);		/* # of samples */
-	writeLong(f, 64000000); 	/* 64MHz */
+	writeLong(f, 100); 			/* KLUDGE! We lie, ca. 100Hz best case. */
 	writeString(f, "seconds");
 	for (i = 0; i < (15-strlen("seconds")); i++)
 		writeData(f, &zero, 1);