[binutils-gdb] gprof: fix odd inst len hist scale calculation

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2effb0d11fd184e432dbce2cd6e45240471c1189

commit 2effb0d11fd184e432dbce2cd6e45240471c1189
Author: Richard Allen <rsaxvc@gmail.com>
Date:   Sun Feb 9 10:49:01 2025 -0600

    gprof: fix odd inst len hist scale calculation
    
    With even instruction sizes, this rounding never truncated.
    Xtensa CPUs mostly use 2-3 byte instructions, and this can lead
    to a histogram being captured with an odd length address range.
    
    This small truncation prevented gprof from parsing gmon.out files
    containing multiple histograms when at least one of them has an
    odd address range length and another has any other address range.
    
    Signed-off-by: Richard Allen <rsaxvc@gmail.com>

Diff:
---
 gprof/hist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gprof/hist.c b/gprof/hist.c
index 1193b7025e9..c82b5cd4db7 100644
--- a/gprof/hist.c
+++ b/gprof/hist.c
@@ -109,7 +109,7 @@ read_histogram_header (histogram *record,
       done (1);
     }
 
-  n_hist_scale = (double)((record->highpc - record->lowpc) / sizeof (UNIT))
+  n_hist_scale = (double)(record->highpc - record->lowpc) / sizeof (UNIT)
     / record->num_bins;
 
   if (first)