gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gprof / hist.h

diff --git a/gprof/hist.h b/gprof/hist.h
index df62ef770f418840bb5b9bd67545872b785a1d80..515869660685d323b66f56f8257b70b9f2245521 100644 (file)
--- a/gprof/hist.h
+++ b/gprof/hist.h
@@ -1,23 +1,58 @@
+/* hist.h
+
+   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+
+   This file is part of GNU Binutils.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+\f
 #ifndef hist_h
 #define hist_h
 
-#include "bfd.h"
-
-extern bfd_vma s_lowpc;                /* lowpc from the profile file */
-extern bfd_vma s_highpc;       /* highpc from the profile file */
-extern bfd_vma lowpc, highpc;  /* range profiled, in UNIT's */
-extern int hist_num_bins;      /* number of histogram bins */
-extern int *hist_sample;       /* code histogram */
-/*
- * Scale factor converting samples to pc values: each sample covers
- * HIST_SCALE bytes:
- */
+typedef struct histogram
+{
+  bfd_vma lowpc;
+  bfd_vma highpc;
+  unsigned int num_bins;
+  int *sample;           /* Histogram samples (shorts in the file!).  */
+} histogram;
+
+extern histogram * histograms;
+extern unsigned    num_histograms;
+
+/* Scale factor converting samples to pc values:
+   each sample covers HIST_SCALE bytes.  */
 extern double hist_scale;
 
+extern void hist_read_rec        (FILE *, const char *);
+extern void hist_write_hist      (FILE *, const char *);
+extern void hist_assign_samples  (void);
+extern void hist_print           (void);
+
+/* Checks if ADDRESS is within the range of addresses for which
+   we have histogram data.  Returns 1 if so and 0 otherwise.  */
+extern int hist_check_address (unsigned address);
+
+/* Given a range of addresses for a symbol, find a histogram record
+   that intersects with this range, and clips the range to that
+   histogram record, modifying *P_LOWPC and *P_HIGHPC.
 
-extern void hist_read_rec PARAMS ((FILE * ifp, const char *filename));
-extern void hist_write_hist PARAMS ((FILE * ofp, const char *filename));
-extern void hist_assign_samples PARAMS ((void));
-extern void hist_print PARAMS ((void));
+   If no intersection is found, *P_LOWPC and *P_HIGHPC will be set to
+   one unspecified value.  If more that one intersection is found,
+   an error is emitted.  */
+extern void hist_clip_symbol_address (bfd_vma *p_lowpc, bfd_vma *p_highpc);
 
 #endif /* hist_h */