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authorNick Clifton <nickc@redhat.com>1999-09-24 09:03:49 +0000
committerNick Clifton <nickc@redhat.com>1999-09-24 09:03:49 +0000
commit2d35e9f64f547cb4fe7f97c69b4aca6bfad8f5f3 (patch)
tree9398b1425e72b428c34ba9c5384af32d19a375d7 /gprof
parentd3426803c579b3e53b702d95b11eff681d653209 (diff)
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Make sure that sensible values are extracted from a raw header.
Diffstat (limited to 'gprof')
-rw-r--r--gprof/ChangeLog5
-rw-r--r--gprof/gmon_io.c9
2 files changed, 14 insertions, 0 deletions
diff --git a/gprof/ChangeLog b/gprof/ChangeLog
index 2f490fb..ae5e9f4 100644
--- a/gprof/ChangeLog
+++ b/gprof/ChangeLog
@@ -1,3 +1,8 @@
+1999-09-24 Nick Clifton <nickc@cygnus.com>
+
+ * gmon_io.c (gmon_out_read): Make sure that sensible values
+ are extracted from a raw header.
+
1999-08-06 Ian Lance Taylor <ian@zembu.com>
From Brad Lucier <lucier@math.purdue.edu>:
diff --git a/gprof/gmon_io.c b/gprof/gmon_io.c
index 067323c..7e0a1a0 100644
--- a/gprof/gmon_io.c
+++ b/gprof/gmon_io.c
@@ -251,6 +251,15 @@ DEFUN (gmon_out_read, (filename), const char *filename)
printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n",
samp_bytes, hist_num_bins));
+ /* Make sure that we have sensible values. */
+ if (samp_bytes < 0 || lowpc > highpc)
+ {
+ fprintf (stderr,
+ _("%s: file '%s' does not appear to be in gmon.out format\n"),
+ whoami, filename);
+ done (1);
+ }
+
if (hist_num_bins)
{
++nhist;