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authorPeter Wemm <peter@FreeBSD.org>2008-07-12 05:00:28 +0000
committerPeter Wemm <peter@FreeBSD.org>2008-07-12 05:00:28 +0000
commita988131922df6e2093bf4391d6b1b021c07d6b3c (patch)
treeceac31a567976fd5866cb5791b059781f6e045de /lib/isc/mips/include/isc
parent3104e2690b183ef5948f77893efb9ddc3f9edce2 (diff)
downloadsrc-a988131922df6e2093bf4391d6b1b021c07d6b3c.tar.gz
src-a988131922df6e2093bf4391d6b1b021c07d6b3c.zip
Flatten bind9 vendor work area
Notes
Notes: svn path=/vendor/bind9/dist/; revision=180456
Diffstat (limited to 'lib/isc/mips/include/isc')
-rw-r--r--lib/isc/mips/include/isc/Makefile.in36
-rw-r--r--lib/isc/mips/include/isc/atomic.h98
2 files changed, 134 insertions, 0 deletions
diff --git a/lib/isc/mips/include/isc/Makefile.in b/lib/isc/mips/include/isc/Makefile.in
new file mode 100644
index 000000000000..6760ce61d743
--- /dev/null
+++ b/lib/isc/mips/include/isc/Makefile.in
@@ -0,0 +1,36 @@
+# Copyright (C) 2007 Internet Systems Consortium, Inc. ("ISC")
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: Makefile.in,v 1.2.2.1 2007/09/14 04:26:38 marka Exp $
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+top_srcdir = @top_srcdir@
+
+@BIND9_VERSION@
+
+HEADERS = atomic.h
+
+SUBDIRS =
+TARGETS =
+
+@BIND9_MAKE_RULES@
+
+installdirs:
+ $(SHELL) ${top_srcdir}/mkinstalldirs ${DESTDIR}${includedir}/isc
+
+install:: installdirs
+ for i in ${HEADERS}; do \
+ ${INSTALL_DATA} $(srcdir)/$$i ${DESTDIR}${includedir}/isc ; \
+ done
diff --git a/lib/isc/mips/include/isc/atomic.h b/lib/isc/mips/include/isc/atomic.h
new file mode 100644
index 000000000000..368a6ef1fffc
--- /dev/null
+++ b/lib/isc/mips/include/isc/atomic.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2005 Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: atomic.h,v 1.1.2.1 2005/07/09 07:14:00 jinmei Exp $ */
+
+#ifndef ISC_ATOMIC_H
+#define ISC_ATOMIC_H 1
+
+#include <isc/platform.h>
+#include <isc/types.h>
+
+#ifdef ISC_PLATFORM_USEGCCASM
+/*
+ * This routine atomically increments the value stored in 'p' by 'val', and
+ * returns the previous value.
+ */
+static inline isc_int32_t
+isc_atomic_xadd(isc_int32_t *p, int val) {
+ isc_int32_t orig;
+
+ /* add is a cheat, since MIPS has no mov instruction */
+ __asm__ volatile (
+ "1:"
+ "ll $3, %1\n"
+ "add %0, $0, $3\n"
+ "add $3, $3, %2\n"
+ "sc $3, %1\n"
+ "beq $3, 0, 1b"
+ : "=&r"(orig)
+ : "m"(*p), "r"(val)
+ : "memory", "$3"
+ );
+
+ return (orig);
+}
+
+/*
+ * This routine atomically stores the value 'val' in 'p'.
+ */
+static inline void
+isc_atomic_store(isc_int32_t *p, isc_int32_t val) {
+ __asm__ volatile (
+ "1:"
+ "ll $3, %0\n"
+ "add $3, $0, %1\n"
+ "sc $3, %0\n"
+ "beq $3, 0, 1b"
+ :
+ : "m"(*p), "r"(val)
+ : "memory", "$3"
+ );
+}
+
+/*
+ * This routine atomically replaces the value in 'p' with 'val', if the
+ * original value is equal to 'cmpval'. The original value is returned in any
+ * case.
+ */
+static inline isc_int32_t
+isc_atomic_cmpxchg(isc_int32_t *p, int cmpval, int val) {
+ isc_int32_t orig;
+
+ __asm__ volatile(
+ "1:"
+ "ll $3, %1\n"
+ "add %0, $0, $3\n"
+ "bne $3, %2, 2f\n"
+ "add $3, $0, %3\n"
+ "sc $3, %1\n"
+ "beq $3, 0, 1b\n"
+ "2:"
+ : "=&r"(orig)
+ : "m"(*p), "r"(cmpval), "r"(val)
+ : "memory", "$3"
+ );
+
+ return (orig);
+}
+
+#else /* !ISC_PLATFORM_USEGCCASM */
+
+#error "unsupported compiler. disable atomic ops by --disable-atomic"
+
+#endif
+#endif /* ISC_ATOMIC_H */