Adding upstream version 1.18.10.upstream/1.18.10upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/runtime/signal_linux_386.go b/src/runtime/signal_linux_386.go
new file mode 100644
index 0000000..321518c
--- /dev/null
+++ b/src/runtime/signal_linux_386.go
@@ -0,0 +1,46 @@
+// Copyright 2013 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 file.
+
+package runtime
+
+import (
+	"internal/goarch"
+	"unsafe"
+)
+
+type sigctxt struct {
+	info *siginfo
+	ctxt unsafe.Pointer
+}
+
+//go:nosplit
+//go:nowritebarrierrec
+func (c *sigctxt) regs() *sigcontext { return &(*ucontext)(c.ctxt).uc_mcontext }
+
+func (c *sigctxt) eax() uint32 { return c.regs().eax }
+func (c *sigctxt) ebx() uint32 { return c.regs().ebx }
+func (c *sigctxt) ecx() uint32 { return c.regs().ecx }
+func (c *sigctxt) edx() uint32 { return c.regs().edx }
+func (c *sigctxt) edi() uint32 { return c.regs().edi }
+func (c *sigctxt) esi() uint32 { return c.regs().esi }
+func (c *sigctxt) ebp() uint32 { return c.regs().ebp }
+func (c *sigctxt) esp() uint32 { return c.regs().esp }
+
+//go:nosplit
+//go:nowritebarrierrec
+func (c *sigctxt) eip() uint32 { return c.regs().eip }
+
+func (c *sigctxt) eflags() uint32  { return c.regs().eflags }
+func (c *sigctxt) cs() uint32      { return uint32(c.regs().cs) }
+func (c *sigctxt) fs() uint32      { return uint32(c.regs().fs) }
+func (c *sigctxt) gs() uint32      { return uint32(c.regs().gs) }
+func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
+func (c *sigctxt) sigaddr() uint32 { return c.info.si_addr }
+
+func (c *sigctxt) set_eip(x uint32)     { c.regs().eip = x }
+func (c *sigctxt) set_esp(x uint32)     { c.regs().esp = x }
+func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
+func (c *sigctxt) set_sigaddr(x uint32) {
+	*(*uintptr)(add(unsafe.Pointer(c.info), 2*goarch.PtrSize)) = uintptr(x)
+}