1 files changed, 35 insertions, 0 deletions
diff --git a/vendor/modernc.org/memory/mmap_linux_32.go b/vendor/modernc.org/memory/mmap_linux_32.go
new file mode 100644
index 0000000..207ad41
--- /dev/null
+++ b/vendor/modernc.org/memory/mmap_linux_32.go
@@ -0,0 +1,35 @@
+// Copyright 2009 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-GO file.
+
+//go:build linux && (386 || arm || mips || mipsle)
+// +build linux
+// +build 386 arm mips mipsle
+
+package memory
+
+import (
+	"syscall"
+)
+
+// Function syscall.mmap and syscall.mmap2 are same for linux/386, linux/arm,
+// linux/mips and linux/mipsle
+
+// https://cs.opensource.google/go/go/+/refs/tags/go1.17.8:src/syscall/syscall_linux_386.go;l=99-105
+func mmapSyscall(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
+	page := uintptr(offset / 4096)
+	if offset != int64(page)*4096 {
+		return 0, syscall.EINVAL
+	}
+	return mmap2Syscall(addr, length, prot, flags, fd, page)
+}
+
+// https://cs.opensource.google/go/go/+/refs/tags/go1.17.8:src/syscall/zsyscall_linux_386.go;l=1361-1370
+func mmap2Syscall(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) {
+	r0, _, e1 := syscall.Syscall6(syscall.SYS_MMAP2, uintptr(addr), uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(pageOffset))
+	xaddr = uintptr(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}