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 93efa762f14d5327797a6ba64c0d9eefd93c56e4..5cff9d081ad27cecb6c0069780553ab8fbeb80b9 100644 (file)
--- 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);