// See the WaitGroup example.
func (wg *WaitGroup) Add(delta int) {
	if race.Enabled {
		if delta < 0 {
			// Synchronize decrements with Wait.
			race.ReleaseMerge(unsafe.Pointer(wg))
		}
		race.Disable()
		defer race.Enable()
	}
	state := wg.state.Add(uint64(delta) << 32)
	v := int32(state >> 32)
	w := uint32(state)
	if race.Enabled && delta > 0 && v == int32(delta) {

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package mips64

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package s390x

//     THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
//     PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design,
//     Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
//     EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
//     PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

	}

	if debug.harddecommit > 0 {
		p, err := mmap(v, n, _PROT_NONE, _MAP_ANON|_MAP_FIXED|_MAP_PRIVATE, -1, 0)
		if p != v || err != 0 {
			throw("runtime: cannot disable permissions in address space")
		}
	}
}

func sysUsedOS(v unsafe.Pointer, n uintptr) {
	if debug.harddecommit > 0 {
		p, err := mmap(v, n, _PROT_READ|_PROT_WRITE, _MAP_ANON|_MAP_FIXED|_MAP_PRIVATE, -1, 0)

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package s390x

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package x86

}

func (f *zeroPanicker) String() string {
	if !f.dontPanic {
		panic("panic!")
	}
	return f.v
}

const defaultOutput = `  -A	for bootstrapping, allow 'any' type
  -Alongflagname
    	disable bounds checking
  -C	a boolean defaulting to true (default true)
  -D path
    	set relative path for local imports
  -E string
    	issue 23543 (default "0")
  -F number
    	a non-zero number (default 2.7)

				MakeAddrRange(PageBase(BaseChunkIdx+62, 0), PageBase(BaseChunkIdx+63, 0)),
				MakeAddrRange(PageBase(BaseChunkIdx+64, 0), PageBase(BaseChunkIdx+65, 0)),
			},
		},
	}
	// Disable these tests on iOS since we have a small address space.
	// See #46860.
	if PageAlloc64Bit != 0 && goos.IsIos == 0 {
		tests["ExtremelyDiscontiguous"] = test{
			chunks: []ChunkIdx{
				BaseChunkIdx,

	st.ss_sp = (char*)base;
	st.ss_flags = 0;
	st.ss_size = CSIGSTKSZ;
	if (sigaltstack(&st, &ost) < 0) {
		perror("sigaltstack failed");
		abort();
	}

	// Call Go.
	SigStackCallback();

	// Disable signal stack and protect it so we can detect reuse.
	if (ost.ss_flags & SS_DISABLE) {
		// Darwin libsystem has a bug where it checks ss_size
		// even if SS_DISABLE is set. (The kernel gets it right.)
		ost.ss_size = CSIGSTKSZ;