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runtime: support NumCPU() on more platforms Added support for Solaris, Irix, *BSD (including Darwin). 

runtime: support NumCPU() on more platforms
        Added support for Solaris, Irix, *BSD (including Darwin).
        Still missing support for RTEMS.
        Fixes issue 3698 in Go issue tracker.

From-SVN: r190197
This commit is contained in:
Ian Lance Taylor 2012-08-07 04:42:49 +00:00
parent 2dbfe2c6d5
commit 233115eaf5
10 changed files with 210 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
libgo/Makefile.am
View File

@ -390,6 +390,32 @@ else
runtime_lock_files = runtime/lock_sema.c runtime/thread-sema.c
endif
if LIBGO_IS_LINUX
runtime_getncpu_file = runtime/getncpu-linux.c
else
if LIBGO_IS_DARWIN
runtime_getncpu_file = runtime/getncpu-bsd.c
else
if LIBGO_IS_IRIX
runtime_getncpu_file = runtime/getncpu-irix.c
else
if LIBGO_IS_SOLARIS
runtime_getncpu_file = runtime/getncpu-solaris.c
else
if LIBGO_IS_FREEBSD
runtime_getncpu_file = runtime/getncpu-bsd.c
else
if LIBGO_IS_NETBSD
runtime_getncpu_file = runtime/getncpu-bsd.c
else
runtime_getncpu_file = runtime/getncpu-none.c
endif
endif
endif
endif
endif
endif
runtime_files = \
runtime/go-append.c \
runtime/go-assert.c \
@ -481,7 +507,8 @@ runtime_files = \
sema.c \
sigqueue.c \
string.c \
time.c
time.c \
$(runtime_getncpu_file)
goc2c.$(OBJEXT): runtime/goc2c.c
$(CC_FOR_BUILD) -c $(CFLAGS_FOR_BUILD) $<

69
libgo/Makefile.in
View File

@ -213,13 +213,23 @@ am__libgo_la_SOURCES_DIST = runtime/go-append.c runtime/go-assert.c \
runtime/runtime.c runtime/signal_unix.c runtime/thread.c \
runtime/yield.c runtime/rtems-task-variable-add.c iface.c \
malloc.c map.c mprof.c reflect.c runtime1.c sema.c sigqueue.c \
string.c time.c
string.c time.c runtime/getncpu-none.c runtime/getncpu-bsd.c \
runtime/getncpu-solaris.c runtime/getncpu-irix.c \
runtime/getncpu-linux.c
@LIBGO_IS_LINUX_FALSE@am__objects_1 = lock_sema.lo thread-sema.lo
@LIBGO_IS_LINUX_TRUE@am__objects_1 = lock_futex.lo thread-linux.lo
@HAVE_SYS_MMAN_H_FALSE@am__objects_2 = mem_posix_memalign.lo
@HAVE_SYS_MMAN_H_TRUE@am__objects_2 = mem.lo
@LIBGO_IS_RTEMS_TRUE@am__objects_3 = rtems-task-variable-add.lo
am__objects_4 = go-append.lo go-assert.lo go-assert-interface.lo \
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_4 = getncpu-none.lo
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@am__objects_4 = getncpu-bsd.lo
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_4 = getncpu-bsd.lo
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@am__objects_4 = getncpu-solaris.lo
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_4 = getncpu-irix.lo
@LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_4 = \
@LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@ getncpu-bsd.lo
@LIBGO_IS_LINUX_TRUE@am__objects_4 = getncpu-linux.lo
am__objects_5 = go-append.lo go-assert.lo go-assert-interface.lo \
go-byte-array-to-string.lo go-breakpoint.lo go-caller.lo \
go-callers.lo go-can-convert-interface.lo go-cgo.lo \
go-check-interface.lo go-construct-map.lo \
@ -244,8 +254,9 @@ am__objects_4 = go-append.lo go-assert.lo go-assert-interface.lo \
$(am__objects_2) mfinal.lo mfixalloc.lo mgc0.lo mheap.lo \
msize.lo print.lo proc.lo runtime.lo signal_unix.lo thread.lo \
yield.lo $(am__objects_3) iface.lo malloc.lo map.lo mprof.lo \
reflect.lo runtime1.lo sema.lo sigqueue.lo string.lo time.lo
am_libgo_la_OBJECTS = $(am__objects_4)
reflect.lo runtime1.lo sema.lo sigqueue.lo string.lo time.lo \
$(am__objects_4)
am_libgo_la_OBJECTS = $(am__objects_5)
libgo_la_OBJECTS = $(am_libgo_la_OBJECTS)
libgo_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(libgo_la_LDFLAGS) \
@ -807,6 +818,13 @@ toolexeclibgounicode_DATA = \
@LIBGO_IS_RTEMS_TRUE@rtems_task_variable_add_file = runtime/rtems-task-variable-add.c
@LIBGO_IS_LINUX_FALSE@runtime_lock_files = runtime/lock_sema.c runtime/thread-sema.c
@LIBGO_IS_LINUX_TRUE@runtime_lock_files = runtime/lock_futex.c runtime/thread-linux.c
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-none.c
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-bsd.c
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@runtime_getncpu_file = runtime/getncpu-bsd.c
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@runtime_getncpu_file = runtime/getncpu-solaris.c
@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_TRUE@@LIBGO_IS_LINUX_FALSE@runtime_getncpu_file = runtime/getncpu-irix.c
@LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@runtime_getncpu_file = runtime/getncpu-bsd.c
@LIBGO_IS_LINUX_TRUE@runtime_getncpu_file = runtime/getncpu-linux.c
runtime_files = \
runtime/go-append.c \
runtime/go-assert.c \
@ -898,7 +916,8 @@ runtime_files = \
sema.c \
sigqueue.c \
string.c \
time.c
time.c \
$(runtime_getncpu_file)
go_bufio_files = \
go/bufio/bufio.go
@ -2367,6 +2386,11 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/chan.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpuprof.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-bsd.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-irix.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-linux.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-none.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getncpu-solaris.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-append.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-assert-interface.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-assert.Plo@am__quote@
@ -3092,6 +3116,41 @@ rtems-task-variable-add.lo: runtime/rtems-task-variable-add.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o rtems-task-variable-add.lo `test -f 'runtime/rtems-task-variable-add.c' || echo '$(srcdir)/'`runtime/rtems-task-variable-add.c
getncpu-none.lo: runtime/getncpu-none.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-none.lo -MD -MP -MF $(DEPDIR)/getncpu-none.Tpo -c -o getncpu-none.lo `test -f 'runtime/getncpu-none.c' || echo '$(srcdir)/'`runtime/getncpu-none.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/getncpu-none.Tpo $(DEPDIR)/getncpu-none.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='runtime/getncpu-none.c' object='getncpu-none.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-none.lo `test -f 'runtime/getncpu-none.c' || echo '$(srcdir)/'`runtime/getncpu-none.c
getncpu-bsd.lo: runtime/getncpu-bsd.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-bsd.lo -MD -MP -MF $(DEPDIR)/getncpu-bsd.Tpo -c -o getncpu-bsd.lo `test -f 'runtime/getncpu-bsd.c' || echo '$(srcdir)/'`runtime/getncpu-bsd.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/getncpu-bsd.Tpo $(DEPDIR)/getncpu-bsd.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='runtime/getncpu-bsd.c' object='getncpu-bsd.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-bsd.lo `test -f 'runtime/getncpu-bsd.c' || echo '$(srcdir)/'`runtime/getncpu-bsd.c
getncpu-solaris.lo: runtime/getncpu-solaris.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-solaris.lo -MD -MP -MF $(DEPDIR)/getncpu-solaris.Tpo -c -o getncpu-solaris.lo `test -f 'runtime/getncpu-solaris.c' || echo '$(srcdir)/'`runtime/getncpu-solaris.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/getncpu-solaris.Tpo $(DEPDIR)/getncpu-solaris.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='runtime/getncpu-solaris.c' object='getncpu-solaris.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-solaris.lo `test -f 'runtime/getncpu-solaris.c' || echo '$(srcdir)/'`runtime/getncpu-solaris.c
getncpu-irix.lo: runtime/getncpu-irix.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-irix.lo -MD -MP -MF $(DEPDIR)/getncpu-irix.Tpo -c -o getncpu-irix.lo `test -f 'runtime/getncpu-irix.c' || echo '$(srcdir)/'`runtime/getncpu-irix.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/getncpu-irix.Tpo $(DEPDIR)/getncpu-irix.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='runtime/getncpu-irix.c' object='getncpu-irix.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-irix.lo `test -f 'runtime/getncpu-irix.c' || echo '$(srcdir)/'`runtime/getncpu-irix.c
getncpu-linux.lo: runtime/getncpu-linux.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT getncpu-linux.lo -MD -MP -MF $(DEPDIR)/getncpu-linux.Tpo -c -o getncpu-linux.lo `test -f 'runtime/getncpu-linux.c' || echo '$(srcdir)/'`runtime/getncpu-linux.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/getncpu-linux.Tpo $(DEPDIR)/getncpu-linux.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='runtime/getncpu-linux.c' object='getncpu-linux.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getncpu-linux.lo `test -f 'runtime/getncpu-linux.c' || echo '$(srcdir)/'`runtime/getncpu-linux.c
mostlyclean-libtool:
-rm -f *.lo

24
libgo/runtime/getncpu-bsd.c Normal file
View File

@ -0,0 +1,24 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <sys/types.h>
#include <sys/sysctl.h>
#include "runtime.h"
#include "defs.h"
int32
getproccount(void)
{
int mib[2], out;
size_t len;
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
len = sizeof(out);
if(sysctl(mib, 2, &out, &len, NULL, 0) >= 0)
return (int32)out;
else
return 0;
}

16
libgo/runtime/getncpu-irix.c Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <unistd.h>
#include "runtime.h"
#include "defs.h"
int32
getproccount(void)
{
int32 n;
n = (int32)sysconf(_SC_NPROC_ONLN);
return n > 1 ? n : 1;
}

47
libgo/runtime/getncpu-linux.c Normal file
View File

@ -0,0 +1,47 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include "runtime.h"
#include "defs.h"
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#endif
int32
getproccount(void)
{
int32 fd, rd, cnt, cpustrlen;
const char *cpustr;
const byte *pos;
byte *bufpos;
byte buf[256];
fd = open("/proc/stat", O_RDONLY|O_CLOEXEC, 0);
if(fd == -1)
return 1;
cnt = 0;
bufpos = buf;
cpustr = "\ncpu";
cpustrlen = strlen(cpustr);
for(;;) {
rd = read(fd, bufpos, sizeof(buf)-cpustrlen);
if(rd == -1)
break;
bufpos[rd] = 0;
for(pos=buf; (pos=(const byte*)strstr((const char*)pos, cpustr)) != nil; cnt++, pos++) {
}
if(rd < cpustrlen)
break;
memmove(buf, bufpos+rd-cpustrlen+1, cpustrlen-1);
bufpos = buf+cpustrlen-1;
}
close(fd);
return cnt ? cnt : 1;
}

12
libgo/runtime/getncpu-none.c Normal file
View File

@ -0,0 +1,12 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "runtime.h"
#include "defs.h"
int32
getproccount(void)
{
return 0;
}

16
libgo/runtime/getncpu-solaris.c Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <unistd.h>
#include "runtime.h"
#include "defs.h"
int32
getproccount(void)
{
int32 n;
n = (int32)sysconf(_SC_NPROCESSORS_ONLN);
return n > 1 ? n : 1;
}

2
libgo/runtime/runtime.h
View File

@ -518,3 +518,5 @@ void __go_register_gc_roots(struct root_list*);
extern uintptr runtime_stacks_sys;
extern _Bool __go_file_line (uintptr, String*, String*, int *);
int32 getproccount(void);

36
libgo/runtime/thread-linux.c
View File

@ -72,42 +72,6 @@ runtime_futexwakeup(uint32 *addr, uint32 cnt)
*(int32*)0x1006 = 0x1006;
}
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#endif
static int32
getproccount(void)
{
int32 fd, rd, cnt, cpustrlen;
const char *cpustr;
const byte *pos;
byte *bufpos;
byte buf[256];
fd = open("/proc/stat", O_RDONLY|O_CLOEXEC, 0);
if(fd == -1)
return 1;
cnt = 0;
bufpos = buf;
cpustr = "\ncpu";
cpustrlen = strlen(cpustr);
for(;;) {
rd = read(fd, bufpos, sizeof(buf)-cpustrlen);
if(rd == -1)
break;
bufpos[rd] = 0;
for(pos=buf; (pos=(const byte*)strstr((const char*)pos, cpustr)) != nil; cnt++, pos++) {
}
if(rd < cpustrlen)
break;
memmove(buf, bufpos+rd-cpustrlen+1, cpustrlen-1);
bufpos = buf+cpustrlen-1;
}
close(fd);
return cnt ? cnt : 1;
}
void
runtime_osinit(void)
{

1
libgo/runtime/thread-sema.c
View File

@ -138,6 +138,7 @@ runtime_semawakeup (M *mp)
void
runtime_osinit (void)
{
runtime_ncpu = getproccount();
}
void