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-rw-r--r--Makefile6
-rw-r--r--config.mak.uname5
-rw-r--r--configure.ac23
-rw-r--r--git-compat-util.h3
-rw-r--r--thread-utils.c18
5 files changed, 54 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 44f1dd10ff..5f3987fe3b 100644
--- a/Makefile
+++ b/Makefile
@@ -357,6 +357,8 @@ all::
# and define it to "no" if you need to remove the parentheses () around the
# constant. The default is "auto", which means to use parentheses if your
# compiler is detected to support it.
+#
+# Define HAVE_BSD_SYSCTL if your platform has a BSD-compatible sysctl function.
GIT-VERSION-FILE: FORCE
@$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1431,6 +1433,10 @@ ifdef HAVE_CLOCK_MONOTONIC
BASIC_CFLAGS += -DHAVE_CLOCK_MONOTONIC
endif
+ifdef HAVE_BSD_SYSCTL
+ BASIC_CFLAGS += -DHAVE_BSD_SYSCTL
+endif
+
ifeq ($(TCLTK_PATH),)
NO_TCLTK = NoThanks
endif
diff --git a/config.mak.uname b/config.mak.uname
index b64b63c34c..f4e77cb9e5 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -107,6 +107,7 @@ ifeq ($(uname_S),Darwin)
COMPAT_OBJS += compat/precompose_utf8.o
BASIC_CFLAGS += -DPRECOMPOSE_UNICODE
BASIC_CFLAGS += -DPROTECT_HFS_DEFAULT=1
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),SunOS)
NEEDS_SOCKET = YesPlease
@@ -199,6 +200,7 @@ ifeq ($(uname_S),FreeBSD)
PYTHON_PATH = /usr/local/bin/python
HAVE_PATHS_H = YesPlease
GMTIME_UNRELIABLE_ERRORS = UnfortunatelyYes
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),OpenBSD)
NO_STRCASESTR = YesPlease
@@ -208,6 +210,7 @@ ifeq ($(uname_S),OpenBSD)
BASIC_CFLAGS += -I/usr/local/include
BASIC_LDFLAGS += -L/usr/local/lib
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),MirBSD)
NO_STRCASESTR = YesPlease
@@ -215,6 +218,7 @@ ifeq ($(uname_S),MirBSD)
USE_ST_TIMESPEC = YesPlease
NEEDS_LIBICONV = YesPlease
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),NetBSD)
ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
@@ -225,6 +229,7 @@ ifeq ($(uname_S),NetBSD)
USE_ST_TIMESPEC = YesPlease
NO_MKSTEMPS = YesPlease
HAVE_PATHS_H = YesPlease
+ HAVE_BSD_SYSCTL = YesPlease
endif
ifeq ($(uname_S),AIX)
DEFAULT_PAGER = more
diff --git a/configure.ac b/configure.ac
index 55e5a9b3e6..bbdde85c3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1046,6 +1046,29 @@ GIT_CONF_SUBST([NO_INITGROUPS])
#
# Define NO_ICONV if your libc does not properly support iconv.
+AC_DEFUN([BSD_SYSCTL_SRC], [
+AC_LANG_PROGRAM([[
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+]],[[
+int val, mib[2];
+size_t len;
+mib[0] = CTL_HW;
+mib[1] = 1;
+len = sizeof(val);
+return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;
+]])])
+
+#
+# Define HAVE_BSD_SYSCTL=YesPlease if a BSD-compatible sysctl function is available.
+AC_MSG_CHECKING([for BSD sysctl])
+AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],
+ [AC_MSG_RESULT([yes])
+ HAVE_BSD_SYSCTL=YesPlease],
+ [AC_MSG_RESULT([no])
+ HAVE_BSD_SYSCTL=])
+GIT_CONF_SUBST([HAVE_BSD_SYSCTL])
## Other checks.
# Define USE_PIC if you need the main git objects to be built with -fPIC
diff --git a/git-compat-util.h b/git-compat-util.h
index fbfd10dadc..bc8fc8cf85 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -127,6 +127,9 @@
#else
#include <poll.h>
#endif
+#ifdef HAVE_BSD_SYSCTL
+#include <sys/sysctl.h>
+#endif
#if defined(__MINGW32__)
/* pull in Windows compatibility stuff */
diff --git a/thread-utils.c b/thread-utils.c
index 97396a75ae..a2135e0743 100644
--- a/thread-utils.c
+++ b/thread-utils.c
@@ -35,7 +35,23 @@ int online_cpus(void)
if (!pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0))
return (int)psd.psd_proc_cnt;
-#endif
+#elif defined(HAVE_BSD_SYSCTL) && defined(HW_NCPU)
+ int mib[2];
+ size_t len;
+ int cpucount;
+
+ mib[0] = CTL_HW;
+# ifdef HW_AVAILCPU
+ mib[1] = HW_AVAILCPU;
+ len = sizeof(cpucount);
+ if (!sysctl(mib, 2, &cpucount, &len, NULL, 0))
+ return cpucount;
+# endif /* HW_AVAILCPU */
+ mib[1] = HW_NCPU;
+ len = sizeof(cpucount);
+ if (!sysctl(mib, 2, &cpucount, &len, NULL, 0))
+ return cpucount;
+#endif /* defined(HAVE_BSD_SYSCTL) && defined(HW_NCPU) */
#ifdef _SC_NPROCESSORS_ONLN
if ((ncpus = (long)sysconf(_SC_NPROCESSORS_ONLN)) > 0)