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authorLibravatar tobi <31960611+tsmethurst@users.noreply.github.com>2022-04-24 12:26:22 +0200
committerLibravatar GitHub <noreply@github.com>2022-04-24 12:26:22 +0200
commit88979b35d462516e1765524d70a41c0d26eec911 (patch)
treefd37cb19317217e226ee7717824f24031f53b031 /vendor/modernc.org/memory/mmap_linux_s390x.go
parentRevert "[chore] Tidy up federating db locks a tiny bit (#472)" (#479) (diff)
downloadgotosocial-88979b35d462516e1765524d70a41c0d26eec911.tar.xz
[chore] Update bun and sqlite dependencies (#478)
* update bun + sqlite versions * step bun to v1.1.3
Diffstat (limited to 'vendor/modernc.org/memory/mmap_linux_s390x.go')
-rw-r--r--vendor/modernc.org/memory/mmap_linux_s390x.go23
1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/modernc.org/memory/mmap_linux_s390x.go b/vendor/modernc.org/memory/mmap_linux_s390x.go
new file mode 100644
index 000000000..bf7260e52
--- /dev/null
+++ b/vendor/modernc.org/memory/mmap_linux_s390x.go
@@ -0,0 +1,23 @@
+// 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.
+
+package memory
+
+import (
+ "syscall"
+ "unsafe"
+)
+
+// https://cs.opensource.google/go/go/+/refs/tags/go1.17.8:src/syscall/syscall_linux_s390x.go;l=105-115
+// Linux on s390x uses the old mmap interface, which requires arguments to be passed in a struct.
+// mmap2 also requires arguments to be passed in a struct; it is currently not exposed in <asm/unistd.h>.
+func mmapSyscall(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
+ mmap_args := [6]uintptr{addr, length, uintptr(prot), uintptr(flags), uintptr(fd), uintptr(offset)}
+ r0, _, e1 := syscall.Syscall(syscall.SYS_MMAP, uintptr(unsafe.Pointer(&mmap_args[0])), 0, 0)
+ xaddr = uintptr(r0)
+ if e1 != 0 {
+ err = e1
+ }
+ return
+}