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https://github.com/golang/go
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ec2c7e6659
Currently, Darwin's siginfo type uses *byte for the si_addr field. This results in unwanted write barriers in set_sigaddr. It's also pointless since it never points to anything real and the get/set methods return/take uintXX and cast it from/to the pointer. All other arches use a uint type for this field. Change Darwin to match. This simplifies the get/set methods and eliminates the unwanted write barriers. Change-Id: Ifdb5646d35e1f2f6808b87a3d59745ec9718add1 Reviewed-on: https://go-review.googlesource.com/8086 Reviewed-by: Austin Clements <austin@google.com>
43 lines
1.9 KiB
Go
43 lines
1.9 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import "unsafe"
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type sigctxt struct {
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info *siginfo
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ctxt unsafe.Pointer
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}
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func (c *sigctxt) regs() *regs64 { return &(*ucontext)(c.ctxt).uc_mcontext.ss }
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func (c *sigctxt) rax() uint64 { return c.regs().rax }
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func (c *sigctxt) rbx() uint64 { return c.regs().rbx }
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func (c *sigctxt) rcx() uint64 { return c.regs().rcx }
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func (c *sigctxt) rdx() uint64 { return c.regs().rdx }
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func (c *sigctxt) rdi() uint64 { return c.regs().rdi }
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func (c *sigctxt) rsi() uint64 { return c.regs().rsi }
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func (c *sigctxt) rbp() uint64 { return c.regs().rbp }
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func (c *sigctxt) rsp() uint64 { return c.regs().rsp }
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func (c *sigctxt) r8() uint64 { return c.regs().r8 }
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func (c *sigctxt) r9() uint64 { return c.regs().r9 }
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func (c *sigctxt) r10() uint64 { return c.regs().r10 }
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func (c *sigctxt) r11() uint64 { return c.regs().r11 }
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func (c *sigctxt) r12() uint64 { return c.regs().r12 }
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func (c *sigctxt) r13() uint64 { return c.regs().r13 }
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func (c *sigctxt) r14() uint64 { return c.regs().r14 }
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func (c *sigctxt) r15() uint64 { return c.regs().r15 }
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func (c *sigctxt) rip() uint64 { return c.regs().rip }
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func (c *sigctxt) rflags() uint64 { return c.regs().rflags }
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func (c *sigctxt) cs() uint64 { return c.regs().cs }
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func (c *sigctxt) fs() uint64 { return c.regs().fs }
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func (c *sigctxt) gs() uint64 { return c.regs().gs }
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func (c *sigctxt) sigcode() uint64 { return uint64(c.info.si_code) }
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func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr }
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func (c *sigctxt) set_rip(x uint64) { c.regs().rip = x }
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func (c *sigctxt) set_rsp(x uint64) { c.regs().rsp = x }
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func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) }
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func (c *sigctxt) set_sigaddr(x uint64) { c.info.si_addr = x }
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