[PATCH] Report LTO phase in lto1 process name v2

On larger parallel WHOPR builds I find it useful to see in top which
phase a given lto1 is in.

Set the process name to lto1-wpa, lto1-ltrans, lto1-lto depending
on the current mode.

This is currently only implemented for Linux and only
using the "comm" process name, which is reported in top.

v2: Moved function to libiberty, renamed setproctitle to match
BSD. In theory it should pick up BSD's libc function for this
on a BSD system, but I haven't tested this.

gcc/lto/

2010-10-06  Andi Kleen <ak@linux.intel.com>

	* lto.c (lto_process_name): Add.
	(lto_main): Call lto_process_name.

include/

2010-10-06  Andi Kleen <ak@linux.intel.com>

	* libiberty.h (setproctitle): Add prototype.

libiberty/

2010-10-06  Andi Kleen <ak@linux.intel.com>

	* Makefile.in (CFILES): Add setproctitle.
	(CONFIGURED_OFILES): Add setproctitle.
	(setproctitle): Add rule.
	* config.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Add checks for prctl PR_SET_NAME and setproctitle.
	* setproctitle.c: Add file.
	* functions.texi: Regenerate.

From-SVN: r165066
This commit is contained in:
Andi Kleen 2010-10-06 22:02:58 +00:00 committed by Andi Kleen
parent 826d817fae
commit 6e9bd0f898
11 changed files with 155 additions and 13 deletions

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@ -1,3 +1,8 @@
2010-10-06 Andi Kleen <ak@linux.intel.com>
* lto.c (lto_process_name): Add.
(lto_main): Call lto_process_name.
2010-10-06 Jan Hubicka <jh@suse.cz>
* lto.c (partition_cgraph_node_p, partition_varpool_node_p): Handle

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@ -2379,6 +2379,18 @@ lto_eh_personality (void)
return lto_eh_personality_decl;
}
/* Set the process name based on the LTO mode. */
static void
lto_process_name (void)
{
if (flag_lto)
setproctitle ("lto1-lto");
if (flag_wpa)
setproctitle ("lto1-wpa");
if (flag_ltrans)
setproctitle ("lto1-ltrans");
}
/* Main entry point for the GIMPLE front end. This front end has
three main personalities:
@ -2403,6 +2415,8 @@ lto_eh_personality (void)
void
lto_main (int debug_p ATTRIBUTE_UNUSED)
{
lto_process_name ();
lto_init_reader ();
/* Read all the symbols and call graph from all the files in the

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@ -1,3 +1,7 @@
2010-10-06 Andi Kleen <ak@linux.intel.com>
* libiberty.h (setproctitle): Add prototype.
2010-09-09 Jakub Jelinek <jakub@redhat.com>
* dwarf2.h (DW_OP_GNU_implicit_pointer): New.

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@ -634,6 +634,9 @@ extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,
extern int strverscmp (const char *, const char *);
#endif
/* Set the title of a process */
extern void setproctitle (const char *name, ...);
#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
/* Drastically simplified alloca configurator. If we're using GCC,

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@ -1,3 +1,14 @@
2010-10-06 Andi Kleen <ak@linux.intel.com>
* Makefile.in (CFILES): Add setproctitle.
(CONFIGURED_OFILES): Add setproctitle.
(setproctitle): Add rule.
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac: Add checks for prctl PR_SET_NAME and setproctitle.
* setproctitle.c: Add file.
* functions.texi: Regenerate.
2010-09-22 Tristan Gingold <gingold@adacore.com>
* cplus-dem.c (ada_demangle): Add comments.

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@ -144,7 +144,8 @@ CFILES = alloca.c argv.c asprintf.c atexit.c \
pex-unix.c pex-win32.c \
physmem.c putenv.c \
random.c regex.c rename.c rindex.c \
safe-ctype.c setenv.c sha1.c sigsetmask.c snprintf.c sort.c \
safe-ctype.c setenv.c setproctitle.c sha1.c sigsetmask.c \
snprintf.c sort.c \
spaces.c splay-tree.c stpcpy.c stpncpy.c strcasecmp.c \
strchr.c strdup.c strerror.c strncasecmp.c strncmp.c \
strrchr.c strsignal.c strstr.c strtod.c strtol.c strtoul.c \
@ -201,7 +202,9 @@ CONFIGURED_OFILES = ./asprintf.$(objext) ./atexit.$(objext) \
./pex-unix.$(objext) ./pex-win32.$(objext) \
./putenv.$(objext) \
./random.$(objext) ./rename.$(objext) ./rindex.$(objext) \
./setenv.$(objext) ./sigsetmask.$(objext) ./snprintf.$(objext) \
./setenv.$(objext) \
./setproctitle.$(objext) \
./sigsetmask.$(objext) ./snprintf.$(objext) \
./stpcpy.$(objext) ./stpncpy.$(objext) ./strcasecmp.$(objext) \
./strchr.$(objext) ./strdup.$(objext) ./strncasecmp.$(objext) \
./strncmp.$(objext) ./strndup.$(objext) ./strrchr.$(objext) \
@ -944,6 +947,12 @@ $(CONFIGURED_OFILES): stamp-picdir
else true; fi
$(COMPILE.c) $(srcdir)/setenv.c $(OUTPUT_OPTION)
./setproctitle.$(objext): $(srcdir)/setproctitle.c config.h $(INCDIR)/ansidecl.h
if [ x"$(PICFLAG)" != x ]; then \
$(COMPILE.c) $(PICFLAG) $(srcdir)/setproctitle.c -o pic/$@; \
else true; fi
$(COMPILE.c) $(srcdir)/setproctitle.c $(OUTPUT_OPTION)
./sha1.$(objext): $(srcdir)/sha1.c config.h $(INCDIR)/ansidecl.h $(INCDIR)/sha1.h
if [ x"$(PICFLAG)" != x ]; then \
$(COMPILE.c) $(PICFLAG) $(srcdir)/sha1.c -o pic/$@; \

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@ -44,8 +44,8 @@
don't. */
#undef HAVE_DECL_ASPRINTF
/* Define to 1 if you have the declaration of `basename', and to 0 if you
don't. */
/* Define to 1 if you have the declaration of `basename(char *)', and to 0 if
you don't. */
#undef HAVE_DECL_BASENAME
/* Define to 1 if you have the declaration of `calloc', and to 0 if you don't.
@ -154,9 +154,6 @@
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `mempcpy' function. */
#undef HAVE_MEMPCPY
/* Define to 1 if you have the `memset' function. */
#undef HAVE_MEMSET
@ -169,6 +166,9 @@
/* Define to 1 if you have the `on_exit' function. */
#undef HAVE_ON_EXIT
/* Define if you have prctl PR_SET_NAME */
#undef HAVE_PRCTL_SET_NAME
/* Define to 1 if you have the `psignal' function. */
#undef HAVE_PSIGNAL
@ -199,6 +199,9 @@
/* Define to 1 if you have the `setenv' function. */
#undef HAVE_SETENV
/* Define to 1 if you have the `setproctitle' function. */
#undef HAVE_SETPROCTITLE
/* Define to 1 if you have the `sigsetmask' function. */
#undef HAVE_SIGSETMASK
@ -358,9 +361,6 @@
/* Define to 1 if you have the `vprintf' function. */
#undef HAVE_VPRINTF
/* Define to 1 if you have the `vsnprintf' function. */
#undef HAVE_VSNPRINTF
/* Define to 1 if you have the `vsprintf' function. */
#undef HAVE_VSPRINTF

31
libiberty/configure vendored
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@ -5276,6 +5276,7 @@ funcs="$funcs vprintf"
funcs="$funcs vsnprintf"
funcs="$funcs vsprintf"
funcs="$funcs waitpid"
funcs="$funcs setproctitle"
# Also in the old function.def file: alloca, vfork, getopt.
@ -5298,7 +5299,8 @@ if test "x" = "y"; then
on_exit \
psignal pstat_getdynamic pstat_getstatic putenv \
random realpath rename rindex \
sbrk setenv sigsetmask snprintf stpcpy stpncpy strcasecmp strchr strdup \
sbrk setenv setproctitle sigsetmask snprintf stpcpy stpncpy strcasecmp strchr \
strdup \
strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \
strtoul strverscmp sysconf sysctl sysmp \
table times tmpnam \
@ -5704,6 +5706,33 @@ fi
# check for prctl PR_SET_NAME
if test "$cross_compiling" = yes; then :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error "cannot run test program while cross compiling
See \`config.log' for more details." "$LINENO" 5; }
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <sys/prctl.h>
int main()
{
return (prctl(PR_SET_NAME, "foo") == 0) ? 0 : 1;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
$as_echo "#define HAVE_PRCTL_SET_NAME 1" >>confdefs.h
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
case "${host}" in
*-*-cygwin* | *-*-mingw*)
$as_echo "#define HAVE_SYS_ERRLIST 1" >>confdefs.h

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@ -351,6 +351,7 @@ funcs="$funcs vprintf"
funcs="$funcs vsnprintf"
funcs="$funcs vsprintf"
funcs="$funcs waitpid"
funcs="$funcs setproctitle"
# Also in the old function.def file: alloca, vfork, getopt.
@ -373,7 +374,8 @@ if test "x" = "y"; then
on_exit \
psignal pstat_getdynamic pstat_getstatic putenv \
random realpath rename rindex \
sbrk setenv sigsetmask snprintf stpcpy stpncpy strcasecmp strchr strdup \
sbrk setenv setproctitle sigsetmask snprintf stpcpy stpncpy strcasecmp strchr \
strdup \
strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \
strtoul strverscmp sysconf sysctl sysmp \
table times tmpnam \
@ -533,6 +535,16 @@ fi
AC_SUBST(CHECK)
AC_SUBST(target_header_dir)
# check for prctl PR_SET_NAME
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/prctl.h>
int main()
{
return (prctl(PR_SET_NAME, "foo") == 0) ? 0 : 1;
}
]])], AC_DEFINE(HAVE_PRCTL_SET_NAME, 1,
[Define if you have prctl PR_SET_NAME]))
case "${host}" in
*-*-cygwin* | *-*-mingw*)
AC_DEFINE(HAVE_SYS_ERRLIST)

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@ -667,7 +667,7 @@ relative prefix can be found, return @code{NULL}.
@end deftypefn
@c make-temp-file.c:168
@c make-temp-file.c:173
@deftypefn Replacement char* make_temp_file (const char *@var{suffix})
Return a temporary file name (as a string) or @code{NULL} if unable to
@ -1146,6 +1146,14 @@ environment. This implementation is not safe for multithreaded code.
@end deftypefn
@c setproctitle.c:30
@deftypefn Supplemental void setproctitle(const char *@var{fmt} ...)
Set the title of a process to @var{fmt}. va args not supported for now,
but defined for compatibility with BSD.
@end deftypefn
@c strsignal.c:348
@deftypefn Extension int signo_max (void)

47
libiberty/setproctitle.c Normal file
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@ -0,0 +1,47 @@
/* Set the title of a process.
Copyright (C) 2010 Free Software Foundation, Inc.
This file is part of the libiberty library.
Libiberty 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.
Libiberty 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 libiberty; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_PRCTL_SET_NAME
#include <sys/prctl.h>
#endif
#include "ansidecl.h"
/*
@deftypefn Supplemental void setproctitle(const char *@var{fmt} ...)
Set the title of a process to @var{fmt}. va args not supported for now,
but defined for compatibility with BSD.
@end deftypefn
*/
void
setproctitle (const char *name ATTRIBUTE_UNUSED, ...)
{
#ifdef HAVE_PRCTL_SET_NAME
/* On Linux this sets the top visible "comm", but not necessarily
the name visible in ps. */
prctl (PR_SET_NAME, name);
#endif
}