aboutsummaryrefslogtreecommitdiff
path: root/gmon
diff options
context:
space:
mode:
Diffstat (limited to 'gmon')
-rw-r--r--gmon/Makefile8
-rw-r--r--gmon/Versions3
-rw-r--r--gmon/sys/profil.h63
-rw-r--r--gmon/tst-sprofil.c172
4 files changed, 243 insertions, 3 deletions
diff --git a/gmon/Makefile b/gmon/Makefile
index a07fe73..48f367f 100644
--- a/gmon/Makefile
+++ b/gmon/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -23,7 +23,9 @@ subdir := gmon
headers := sys/gmon.h sys/gmon_out.h
distribute := machine-gmon.h profil-counter.h
-routines := gmon mcount profil bb_init_func bb_exit_func prof-freq
+routines := gmon mcount profil sprofil bb_init_func bb_exit_func prof-freq
+
+tests := tst-sprofil
include ../Rules
@@ -37,7 +39,7 @@ CFLAGS-mcount.c := -fno-omit-frame-pointer
noprof := mcount
ifeq (,$(filter profil,$(unix-syscalls)))
-noprof += profil
+noprof += profil sprofil
endif
$(noprof:%=$(objpfx)%.op): %.op: %.o
diff --git a/gmon/Versions b/gmon/Versions
index c39f1d1..d0b6333 100644
--- a/gmon/Versions
+++ b/gmon/Versions
@@ -16,4 +16,7 @@ libc {
# m*
moncontrol;
}
+ GLIBC_2.2.3 {
+ sprofil;
+ }
}
diff --git a/gmon/sys/profil.h b/gmon/sys/profil.h
new file mode 100644
index 0000000..136bd53
--- /dev/null
+++ b/gmon/sys/profil.h
@@ -0,0 +1,63 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _PROFIL_H
+#define _PROFIL_H 1
+
+#include <features.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+
+/* This interface is intended to follow the sprofil() system calls as
+ described by the sprofil(2) man page of Irix v6.5, except that:
+
+ - there is no a priori limit on number of text sections
+ - pr_scale is declared as unsigned long (instead of "unsigned int")
+ - pr_size is declared as size_t (instead of "unsigned int")
+ - pr_off is declared as void * (instead of "__psunsigned_t")
+ - the overflow bin (pr_base==0, pr_scale==2) can appear anywhere
+ in the profp array
+ - PROF_FAST has no effect */
+
+struct prof
+ {
+ void *pr_base; /* buffer base */
+ size_t pr_size; /* buffer size */
+ size_t pr_off; /* pc offset */
+ unsigned long int pr_scale; /* pc scaling (fixed-point number) */
+ };
+
+enum
+ {
+ PROF_USHORT = 0, /* use 16-bit counters (default) */
+ PROF_UINT = 1 << 0, /* use 32-bit counters */
+ PROF_FAST = 1 << 1 /* profile faster than usual */
+ };
+
+
+__BEGIN_DECLS
+
+extern int sprofil (struct prof *__profp, int __profcnt,
+ struct timeval *__tvp, unsigned int __flags) __THROW;
+
+__END_DECLS
+
+#endif /* profil.h */
diff --git a/gmon/tst-sprofil.c b/gmon/tst-sprofil.c
new file mode 100644
index 0000000..26d4c7c
--- /dev/null
+++ b/gmon/tst-sprofil.c
@@ -0,0 +1,172 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/profil.h>
+
+#include <bits/wordsize.h>
+
+#define NELEMS(a) (sizeof (a)/sizeof ((a)[0]))
+
+size_t taddr[] =
+ {
+ 0x00001000, /* elf32/hppa */
+ 0x08048000, /* Linux elf32/x86 */
+ 0x80000000, /* Linux elf32/m68k */
+ 0x00400000, /* Linux elf32/mips */
+ 0x01800000, /* Linux elf32/ppc */
+ 0x00010000 /* Linux elf32/sparc */
+#if __WORDSIZE > 32
+ ,
+ 0x4000000000000000, /* Linux elf64/ia64 */
+ 0x0000000120000000, /* Linux elf64/alpha */
+ 0x4000000000001000, /* elf64/hppa */
+ 0x0000000100000000 /* Linux elf64/sparc */
+#endif
+ };
+
+unsigned int buf[NELEMS (taddr)][0x10000 / sizeof (int)];
+unsigned int bshort[5][0x100 / sizeof (int)];
+unsigned int blong[1][0x1000 / sizeof (int)];
+unsigned int vlong[1][0x2000 / sizeof (int)];
+
+long int
+fac (long int n)
+{
+ if (n == 0)
+ return 1;
+ return n * fac (n - 1);
+}
+
+int
+main (int argc, char **argv)
+{
+ unsigned int ovfl = 0, profcnt = 0;
+ struct timeval tv, start;
+ struct prof prof[32];
+ double t_tick, delta;
+ long int sum = 0;
+ int i, j;
+
+ for (i = 0; i < NELEMS (taddr); ++i)
+ {
+ prof[profcnt].pr_base = buf[i];
+ prof[profcnt].pr_size = sizeof (buf[i]);
+ prof[profcnt].pr_off = taddr[i];
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+ }
+
+ prof[profcnt].pr_base = blong[0];
+ prof[profcnt].pr_size = sizeof (blong[0]);
+ prof[profcnt].pr_off = 0x80001000;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = bshort[0];
+ prof[profcnt].pr_size = sizeof (bshort[0]);
+ prof[profcnt].pr_off = 0x80000080;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = bshort[1];
+ prof[profcnt].pr_size = sizeof (bshort[1]);
+ prof[profcnt].pr_off = 0x80000f80;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = bshort[2];
+ prof[profcnt].pr_size = sizeof (bshort[2]);
+ prof[profcnt].pr_off = 0x80001080;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = bshort[3];
+ prof[profcnt].pr_size = sizeof (bshort[3]);
+ prof[profcnt].pr_off = 0x80001f80;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = bshort[4];
+ prof[profcnt].pr_size = sizeof (bshort[4]);
+ prof[profcnt].pr_off = 0x80002080;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ prof[profcnt].pr_base = vlong[0];
+ prof[profcnt].pr_size = sizeof (vlong[0]);
+ prof[profcnt].pr_off = 0x80000080;
+ prof[profcnt].pr_scale = 0x10000;
+ ++profcnt;
+
+ /* Set up overflow counter (must be last on Irix). */
+ prof[profcnt].pr_base = &ovfl;
+ prof[profcnt].pr_size = sizeof (ovfl);
+ prof[profcnt].pr_off = 0;
+ prof[profcnt].pr_scale = 2;
+ ++profcnt;
+
+ /* Turn it on. */
+ if (sprofil (prof, profcnt, &tv, PROF_UINT) < 0)
+ {
+ if (errno == ENOSYS)
+ exit (0);
+ perror ("sprofil");
+ exit (1);
+ }
+
+ t_tick = tv.tv_sec + 1e-6 * tv.tv_usec;
+ printf ("profiling period = %g ms\n", 1e3 * t_tick);
+
+ gettimeofday (&start, NULL);
+ do
+ {
+ for (i = 0; i < 21; ++i)
+ sum += fac (i);
+
+ gettimeofday (&tv, NULL);
+ timersub (&tv, &start, &tv);
+ delta = tv.tv_sec + 1e-6 * tv.tv_usec;
+ }
+ while (delta < 1000 * t_tick);
+
+ printf ("sum = 0x%lx\n", sum);
+
+ /* Turn it off. */
+ if (sprofil (NULL, 0, NULL, 0) < 0)
+ {
+ if (errno == ENOSYS)
+ exit (0);
+ perror ("sprofil");
+ exit (1);
+ }
+
+ printf ("overflow = %u\n", ovfl);
+ for (i = 0; i < NELEMS (taddr); ++i)
+ for (j = 0; j < 0x10000 / sizeof (int); ++j)
+ if (buf[i][j] != 0)
+ printf ("%0*Zx\t%u\t(buffer %d)\n",
+ (int) (sizeof (size_t) * 2),
+ (taddr[i] + (char *) &buf[i][j] - (char *) &buf[i][0]),
+ buf[i][j], i);
+
+ return 0;
+}