/* gmon_io.c - Input and output from/to gmon.out files.
- Copyright 2000, 2001 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
+ 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 2 of the License, or
+ 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,
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., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
\f
+#include "gprof.h"
+#include "binary-io.h"
+#include "search_list.h"
+#include "source.h"
+#include "symtab.h"
#include "cg_arcs.h"
#include "basic_blocks.h"
-#include "bfd.h"
#include "corefile.h"
#include "call_graph.h"
#include "gmon_io.h"
#include "gmon_out.h"
#include "gmon.h" /* Fetch header for old format. */
-#include "gprof.h"
#include "hertz.h"
#include "hist.h"
#include "libiberty.h"
+enum gmon_ptr_size {
+ ptr_32bit,
+ ptr_64bit
+};
+
+enum gmon_ptr_signedness {
+ ptr_signed,
+ ptr_unsigned
+};
+
+static enum gmon_ptr_size gmon_get_ptr_size (void);
+static enum gmon_ptr_signedness gmon_get_ptr_signedness (void);
+
+#ifdef BFD_HOST_U_64_BIT
+static int gmon_io_read_64 (FILE *, BFD_HOST_U_64_BIT *);
+static int gmon_io_write_64 (FILE *, BFD_HOST_U_64_BIT);
+#endif
+static int gmon_read_raw_arc
+ (FILE *, bfd_vma *, bfd_vma *, unsigned long *);
+static int gmon_write_raw_arc
+ (FILE *, bfd_vma, bfd_vma, unsigned long);
+
int gmon_input = 0;
int gmon_file_version = 0; /* 0 == old (non-versioned) file format. */
-int
-DEFUN (gmon_io_read_vma, (ifp, valp), FILE * ifp AND bfd_vma *valp)
+static enum gmon_ptr_size
+gmon_get_ptr_size ()
{
- char buf[8];
- bfd_vma val;
+ int size;
- switch (GMON_PTR_SIZE)
+ /* Pick best size for pointers. Start with the ELF size, and if not
+ elf go with the architecture's address size. */
+ size = bfd_get_arch_size (core_bfd);
+ if (size == -1)
+ size = bfd_arch_bits_per_address (core_bfd);
+
+ switch (size)
{
- case 4:
- if (fread (buf, 1, 4, ifp) != 4)
- return 1;
- val = bfd_get_32 (core_bfd, buf);
- break;
+ case 32:
+ return ptr_32bit;
- case 8:
- if (fread (buf, 1, 8, ifp) != 8)
- return 1;
- val = bfd_get_64 (core_bfd, buf);
- break;
+ case 64:
+ return ptr_64bit;
default:
- fprintf (stderr, _("%s: GMON_PTR_SIZE has unexpected value of %u\n"),
- whoami, GMON_PTR_SIZE);
+ fprintf (stderr, _("%s: address size has unexpected value of %u\n"),
+ whoami, size);
done (1);
}
- *valp = val;
- return 0;
+}
+
+static enum gmon_ptr_signedness
+gmon_get_ptr_signedness ()
+{
+ int sext;
+
+ /* Figure out whether to sign extend. If BFD doesn't know, assume no. */
+ sext = bfd_get_sign_extend_vma (core_bfd);
+ if (sext == -1)
+ return ptr_unsigned;
+ return (sext ? ptr_signed : ptr_unsigned);
}
int
-DEFUN (gmon_io_read_32, (ifp, valp), FILE * ifp AND unsigned int *valp)
+gmon_io_read_32 (FILE *ifp, unsigned int *valp)
{
char buf[4];
return 0;
}
-int
-DEFUN (gmon_io_read, (ifp, buf, n), FILE * ifp AND char *buf AND size_t n)
+#ifdef BFD_HOST_U_64_BIT
+static int
+gmon_io_read_64 (FILE *ifp, BFD_HOST_U_64_BIT *valp)
{
- if (fread (buf, 1, n, ifp) != n)
+ char buf[8];
+
+ if (fread (buf, 1, 8, ifp) != 8)
return 1;
+ *valp = bfd_get_64 (core_bfd, buf);
return 0;
}
+#endif
int
-DEFUN (gmon_io_write_vma, (ofp, val), FILE * ofp AND bfd_vma val)
+gmon_io_read_vma (FILE *ifp, bfd_vma *valp)
{
- char buf[8];
+ unsigned int val32;
+#ifdef BFD_HOST_U_64_BIT
+ BFD_HOST_U_64_BIT val64;
+#endif
- switch (GMON_PTR_SIZE)
+ switch (gmon_get_ptr_size ())
{
- case 4:
- bfd_put_32 (core_bfd, val, buf);
- if (fwrite (buf, 1, 4, ofp) != 4)
+ case ptr_32bit:
+ if (gmon_io_read_32 (ifp, &val32))
return 1;
+ if (gmon_get_ptr_signedness () == ptr_signed)
+ *valp = (int) val32;
+ else
+ *valp = val32;
break;
- case 8:
- bfd_put_64 (core_bfd, val, buf);
- if (fwrite (buf, 1, 8, ofp) != 8)
+#ifdef BFD_HOST_U_64_BIT
+ case ptr_64bit:
+ if (gmon_io_read_64 (ifp, &val64))
return 1;
+#ifdef BFD_HOST_64_BIT
+ if (gmon_get_ptr_signedness () == ptr_signed)
+ *valp = (BFD_HOST_64_BIT) val64;
+ else
+#endif
+ *valp = val64;
break;
-
- default:
- fprintf (stderr, _("%s: GMON_PTR_SIZE has unexpected value of %u\n"),
- whoami, GMON_PTR_SIZE);
- done (1);
+#endif
}
return 0;
}
int
-DEFUN (gmon_io_write_32, (ofp, val), FILE * ofp AND unsigned int val)
+gmon_io_read (FILE *ifp, char *buf, size_t n)
+{
+ if (fread (buf, 1, n, ifp) != n)
+ return 1;
+ return 0;
+}
+
+int
+gmon_io_write_32 (FILE *ofp, unsigned int val)
{
char buf[4];
- bfd_put_32 (core_bfd, val, buf);
+ bfd_put_32 (core_bfd, (bfd_vma) val, buf);
if (fwrite (buf, 1, 4, ofp) != 4)
return 1;
return 0;
}
+#ifdef BFD_HOST_U_64_BIT
+static int
+gmon_io_write_64 (FILE *ofp, BFD_HOST_U_64_BIT val)
+{
+ char buf[8];
+
+ bfd_put_64 (core_bfd, (bfd_vma) val, buf);
+ if (fwrite (buf, 1, 8, ofp) != 8)
+ return 1;
+ return 0;
+}
+#endif
+
int
-DEFUN (gmon_io_write_8, (ofp, val), FILE * ofp AND unsigned char val)
+gmon_io_write_vma (FILE *ofp, bfd_vma val)
+{
+
+ switch (gmon_get_ptr_size ())
+ {
+ case ptr_32bit:
+ if (gmon_io_write_32 (ofp, (unsigned int) val))
+ return 1;
+ break;
+
+#ifdef BFD_HOST_U_64_BIT
+ case ptr_64bit:
+ if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) val))
+ return 1;
+ break;
+#endif
+ }
+ return 0;
+}
+
+int
+gmon_io_write_8 (FILE *ofp, unsigned int val)
{
char buf[1];
}
int
-DEFUN (gmon_io_write, (ofp, buf, n), FILE * ofp AND char *buf AND size_t n)
+gmon_io_write (FILE *ofp, char *buf, size_t n)
{
if (fwrite (buf, 1, n, ofp) != n)
return 1;
return 0;
}
-/* get_vma and put_vma are for backwards compatibility only */
-static bfd_vma
-DEFUN (get_vma, (abfd, addr), bfd * abfd AND bfd_byte * addr)
+static int
+gmon_read_raw_arc (FILE *ifp, bfd_vma *fpc, bfd_vma *spc, unsigned long *cnt)
{
- switch (sizeof (char*))
+#ifdef BFD_HOST_U_64_BIT
+ BFD_HOST_U_64_BIT cnt64;
+#endif
+ unsigned int cnt32;
+
+ if (gmon_io_read_vma (ifp, fpc)
+ || gmon_io_read_vma (ifp, spc))
+ return 1;
+
+ switch (gmon_get_ptr_size ())
{
- case 4:
- return bfd_get_32 (abfd, addr);
- case 8:
- return bfd_get_64 (abfd, addr);
+ case ptr_32bit:
+ if (gmon_io_read_32 (ifp, &cnt32))
+ return 1;
+ *cnt = cnt32;
+ break;
+
+#ifdef BFD_HOST_U_64_BIT
+ case ptr_64bit:
+ if (gmon_io_read_64 (ifp, &cnt64))
+ return 1;
+ *cnt = cnt64;
+ break;
+#endif
+
default:
- fprintf (stderr, _("%s: bfd_vma has unexpected size of %ld bytes\n"),
- whoami, (long) sizeof (char*));
- done (1);
+ return 1;
}
+ return 0;
}
-static void
-DEFUN (put_vma, (abfd, val, addr), bfd * abfd AND bfd_vma val AND bfd_byte * addr)
+static int
+gmon_write_raw_arc (FILE *ofp, bfd_vma fpc, bfd_vma spc, unsigned long cnt)
{
- switch (sizeof (char*))
+
+ if (gmon_io_write_vma (ofp, fpc)
+ || gmon_io_write_vma (ofp, spc))
+ return 1;
+
+ switch (gmon_get_ptr_size ())
{
- case 4:
- bfd_put_32 (abfd, val, addr);
+ case ptr_32bit:
+ if (gmon_io_write_32 (ofp, (unsigned int) cnt))
+ return 1;
break;
- case 8:
- bfd_put_64 (abfd, val, addr);
+
+#ifdef BFD_HOST_U_64_BIT
+ case ptr_64bit:
+ if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) cnt))
+ return 1;
break;
- default:
- fprintf (stderr, _("%s: bfd_vma has unexpected size of %ld bytes\n"),
- whoami, (long) sizeof (char*));
- done (1);
+#endif
}
+ return 0;
}
void
-DEFUN (gmon_out_read, (filename), const char *filename)
+gmon_out_read (const char *filename)
{
FILE *ifp;
struct gmon_hdr ghdr;
if (strcmp (filename, "-") == 0)
{
ifp = stdin;
-#ifdef SET_BINARY
SET_BINARY (fileno (stdin));
-#endif
}
else
{
{
bfd_vma low_pc;
bfd_vma high_pc;
- int ncnt;
+ unsigned int ncnt;
};
- int i, samp_bytes, header_size;
+ unsigned int i;
+ int samp_bytes, header_size = 0;
unsigned long count;
bfd_vma from_pc, self_pc;
- struct raw_arc raw_arc;
- struct raw_phdr raw;
- static struct hdr h;
UNIT raw_bin_count;
struct hdr tmp;
+ unsigned int version;
+ unsigned int hist_num_bins;
/* Information from a gmon.out file is in two parts: an array of
sampling hits within pc ranges, and the arcs. */
done (1);
}
- if (fread (&raw, 1, sizeof (struct raw_phdr), ifp)
- != sizeof (struct raw_phdr))
+ /* The beginning of the old BSD header and the 4.4BSD header
+ are the same: lowpc, highpc, ncnt */
+ if (gmon_io_read_vma (ifp, &tmp.low_pc)
+ || gmon_io_read_vma (ifp, &tmp.high_pc)
+ || gmon_io_read_32 (ifp, &tmp.ncnt))
{
- fprintf (stderr, _("%s: file too short to be a gmon file\n"),
+ bad_gmon_file:
+ fprintf (stderr, _("%s: file too short to be a gmon file\n"),
filename);
done (1);
}
- tmp.low_pc = get_vma (core_bfd, (bfd_byte *) &raw.low_pc[0]);
- tmp.high_pc = get_vma (core_bfd, (bfd_byte *) &raw.high_pc[0]);
- tmp.ncnt = bfd_get_32 (core_bfd, (bfd_byte *) &raw.ncnt[0]);
+ /* Check to see if this a 4.4BSD-style header. */
+ if (gmon_io_read_32 (ifp, &version))
+ goto bad_gmon_file;
- if (bfd_get_32 (core_bfd, (bfd_byte *) &raw.version[0])
- == GMONVERSION)
+ if (version == GMONVERSION)
{
- int profrate;
+ unsigned int profrate;
/* 4.4BSD format header. */
- profrate = bfd_get_32 (core_bfd, (bfd_byte *) &raw.profrate[0]);
+ if (gmon_io_read_32 (ifp, &profrate))
+ goto bad_gmon_file;
- if (!s_highpc)
+ if (!histograms)
hz = profrate;
- else if (hz != profrate)
+ else if (hz != (int) profrate)
{
fprintf (stderr,
_("%s: profiling rate incompatible with first gmon file\n"),
done (1);
}
- header_size = sizeof (struct raw_phdr);
+ switch (gmon_get_ptr_size ())
+ {
+ case ptr_32bit:
+ header_size = GMON_HDRSIZE_BSD44_32;
+ break;
+
+ case ptr_64bit:
+ header_size = GMON_HDRSIZE_BSD44_64;
+ break;
+ }
}
else
{
done (1);
}
- if (fseek (ifp, sizeof (struct old_raw_phdr), SEEK_SET) < 0)
+ switch (gmon_get_ptr_size ())
{
- perror (filename);
- done (1);
+ case ptr_32bit:
+ header_size = GMON_HDRSIZE_OLDBSD_32;
+ break;
+
+ case ptr_64bit:
+ header_size = GMON_HDRSIZE_OLDBSD_64;
+ break;
}
+ }
- header_size = sizeof (struct old_raw_phdr);
+ /* Position the file to after the header. */
+ if (fseek (ifp, header_size, SEEK_SET) < 0)
+ {
+ perror (filename);
+ done (1);
}
- if (s_highpc && (tmp.low_pc != h.low_pc
- || tmp.high_pc != h.high_pc || tmp.ncnt != h.ncnt))
+ samp_bytes = tmp.ncnt - header_size;
+ hist_num_bins = samp_bytes / sizeof (UNIT);
+ if (histograms && (tmp.low_pc != histograms->lowpc
+ || tmp.high_pc != histograms->highpc
+ || (hist_num_bins != histograms->num_bins)))
{
fprintf (stderr, _("%s: incompatible with first gmon file\n"),
filename);
done (1);
}
- h = tmp;
- s_lowpc = (bfd_vma) h.low_pc;
- s_highpc = (bfd_vma) h.high_pc;
- lowpc = (bfd_vma) h.low_pc / sizeof (UNIT);
- highpc = (bfd_vma) h.high_pc / sizeof (UNIT);
- samp_bytes = h.ncnt - header_size;
- hist_num_bins = samp_bytes / sizeof (UNIT);
+ if (!histograms)
+ {
+ num_histograms = 1;
+ histograms = (struct histogram *) xmalloc (sizeof (struct histogram));
+ histograms->lowpc = tmp.low_pc;
+ histograms->highpc = tmp.high_pc;
+ histograms->num_bins = hist_num_bins;
+ hist_scale = (double)((tmp.high_pc - tmp.low_pc) / sizeof (UNIT))
+ / hist_num_bins;
+ histograms->sample = (int *) xmalloc (hist_num_bins * sizeof (int));
+ memset (histograms->sample, 0,
+ hist_num_bins * sizeof (int));
+ }
DBG (SAMPLEDEBUG,
printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n",
- (unsigned long) h.low_pc, (unsigned long) h.high_pc,
- h.ncnt);
- printf ("[gmon_out_read] s_lowpc 0x%lx s_highpc 0x%lx\n",
- (unsigned long) s_lowpc, (unsigned long) s_highpc);
- printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx\n",
- (unsigned long) lowpc, (unsigned long) highpc);
+ (unsigned long) tmp.low_pc, (unsigned long) tmp.high_pc,
+ tmp.ncnt);
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)
+ if (samp_bytes < 0 || histograms->lowpc > histograms->highpc)
{
fprintf (stderr,
_("%s: file '%s' does not appear to be in gmon.out format\n"),
if (hist_num_bins)
++nhist;
- if (!hist_sample)
- {
- hist_sample =
- (int *) xmalloc (hist_num_bins * sizeof (hist_sample[0]));
-
- memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0]));
- }
-
for (i = 0; i < hist_num_bins; ++i)
{
if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1)
done (1);
}
- hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count);
+ histograms->sample[i]
+ += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count);
}
/* The rest of the file consists of a bunch of
<from,self,count> tuples. */
- while (fread (&raw_arc, sizeof (raw_arc), 1, ifp) == 1)
+ while (gmon_read_raw_arc (ifp, &from_pc, &self_pc, &count) == 0)
{
++narcs;
- from_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.from_pc);
- self_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.self_pc);
- count = bfd_get_32 (core_bfd, (bfd_byte *) raw_arc.count);
DBG (SAMPLEDEBUG,
printf ("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %lu\n",
{
printf (_("File `%s' (version %d) contains:\n"),
filename, gmon_file_version);
- printf (_("\t%d histogram record%s\n"),
- nhist, nhist == 1 ? "" : "s");
- printf (_("\t%d call-graph record%s\n"),
- narcs, narcs == 1 ? "" : "s");
- printf (_("\t%d basic-block count record%s\n"),
- nbbs, nbbs == 1 ? "" : "s");
+ printf (nhist == 1 ?
+ _("\t%d histogram record\n") :
+ _("\t%d histogram records\n"), nhist);
+ printf (narcs == 1 ?
+ _("\t%d call-graph record\n") :
+ _("\t%d call-graph records\n"), narcs);
+ printf (nbbs == 1 ?
+ _("\t%d basic-block count record\n") :
+ _("\t%d basic-block count records\n"), nbbs);
first_output = FALSE;
}
}
void
-DEFUN (gmon_out_write, (filename), const char *filename)
+gmon_out_write (const char *filename)
{
FILE *ofp;
struct gmon_hdr ghdr;
/* Write gmon header. */
memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
- bfd_put_32 (core_bfd, GMON_VERSION, (bfd_byte *) ghdr.version);
+ bfd_put_32 (core_bfd, (bfd_vma) GMON_VERSION, (bfd_byte *) ghdr.version);
if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1)
{
}
else if (file_format == FF_BSD || file_format == FF_BSD44)
{
- struct raw_arc raw_arc;
UNIT raw_bin_count;
- struct raw_phdr h;
- int i;
+ unsigned int i, hdrsize;
+ unsigned padsize;
+ char pad[3*4];
Arc *arc;
Sym *sym;
- memset (&h, 0, sizeof h);
- put_vma (core_bfd, s_lowpc, (bfd_byte *) &h.low_pc);
- put_vma (core_bfd, s_highpc, (bfd_byte *) &h.high_pc);
- bfd_put_32 (core_bfd,
- hist_num_bins * sizeof (UNIT) + sizeof (struct raw_phdr),
- (bfd_byte *) &h.ncnt);
+ memset (pad, 0, sizeof (pad));
- /* Write header. Use new style BSD format is explicitly
- specified, or if the profiling rate is non-standard;
- otherwise, use the old BSD format. */
+ hdrsize = 0;
+ /* Decide how large the header will be. Use the 4.4BSD format
+ header if explicitly specified, or if the profiling rate is
+ non-standard. Otherwise, use the old BSD format. */
if (file_format == FF_BSD44
- || hz != hertz ())
+ || hz != hertz())
{
- bfd_put_32 (core_bfd, GMONVERSION, (bfd_byte *) &h.version);
- bfd_put_32 (core_bfd, hz, (bfd_byte *) &h.profrate);
- if (fwrite (&h, sizeof (struct raw_phdr), 1, ofp) != 1)
+ padsize = 3*4;
+ switch (gmon_get_ptr_size ())
{
- perror (filename);
- done (1);
+ case ptr_32bit:
+ hdrsize = GMON_HDRSIZE_BSD44_32;
+ break;
+
+ case ptr_64bit:
+ hdrsize = GMON_HDRSIZE_BSD44_64;
+ break;
}
}
else
{
- if (fwrite (&h, sizeof (struct old_raw_phdr), 1, ofp) != 1)
+ padsize = 0;
+ switch (gmon_get_ptr_size ())
+ {
+ case ptr_32bit:
+ hdrsize = GMON_HDRSIZE_OLDBSD_32;
+ break;
+
+ case ptr_64bit:
+ hdrsize = GMON_HDRSIZE_OLDBSD_64;
+ /* FIXME: Checking host compiler defines here means that we can't
+ use a cross gprof alpha OSF. */
+#if defined(__alpha__) && defined (__osf__)
+ padsize = 4;
+#endif
+ break;
+ }
+ }
+
+ /* Write the parts of the headers that are common to both the
+ old BSD and 4.4BSD formats. */
+ if (gmon_io_write_vma (ofp, histograms->lowpc)
+ || gmon_io_write_vma (ofp, histograms->highpc)
+ || gmon_io_write_32 (ofp, histograms->num_bins
+ * sizeof (UNIT) + hdrsize))
+ {
+ perror (filename);
+ done (1);
+ }
+
+ /* Write out the 4.4BSD header bits, if that's what we're using. */
+ if (file_format == FF_BSD44
+ || hz != hertz())
+ {
+ if (gmon_io_write_32 (ofp, GMONVERSION)
+ || gmon_io_write_32 (ofp, (unsigned int) hz))
{
perror (filename);
done (1);
}
}
+ /* Now write out any necessary padding after the meaningful
+ header bits. */
+ if (padsize != 0
+ && fwrite (pad, 1, padsize, ofp) != padsize)
+ {
+ perror (filename);
+ done (1);
+ }
+
/* Dump the samples. */
- for (i = 0; i < hist_num_bins; ++i)
+ for (i = 0; i < histograms->num_bins; ++i)
{
- bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & raw_bin_count[0]);
+ bfd_put_16 (core_bfd, (bfd_vma) histograms->sample[i],
+ (bfd_byte *) &raw_bin_count[0]);
if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1)
{
perror (filename);
{
for (arc = sym->cg.children; arc; arc = arc->next_child)
{
- put_vma (core_bfd, arc->parent->addr,
- (bfd_byte *) raw_arc.from_pc);
- put_vma (core_bfd, arc->child->addr,
- (bfd_byte *) raw_arc.self_pc);
- bfd_put_32 (core_bfd, arc->count, (bfd_byte *) raw_arc.count);
- if (fwrite (&raw_arc, sizeof (raw_arc), 1, ofp) != 1)
+ if (gmon_write_raw_arc (ofp, arc->parent->addr,
+ arc->child->addr, arc->count))
{
perror (filename);
done (1);
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