1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package runtime 6 7 import ( 8 "runtime/internal/sys" 9 "unsafe" 10 ) 11 12 type sigctxt struct { 13 info *siginfo 14 ctxt unsafe.Pointer 15 } 16 17 //go:nosplit 18 //go:nowritebarrierrec 19 func (c *sigctxt) regs() *sigcontext { return &(*ucontext)(c.ctxt).uc_mcontext } 20 21 func (c *sigctxt) r0() uint32 { return c.regs().r0 } 22 func (c *sigctxt) r1() uint32 { return c.regs().r1 } 23 func (c *sigctxt) r2() uint32 { return c.regs().r2 } 24 func (c *sigctxt) r3() uint32 { return c.regs().r3 } 25 func (c *sigctxt) r4() uint32 { return c.regs().r4 } 26 func (c *sigctxt) r5() uint32 { return c.regs().r5 } 27 func (c *sigctxt) r6() uint32 { return c.regs().r6 } 28 func (c *sigctxt) r7() uint32 { return c.regs().r7 } 29 func (c *sigctxt) r8() uint32 { return c.regs().r8 } 30 func (c *sigctxt) r9() uint32 { return c.regs().r9 } 31 func (c *sigctxt) r10() uint32 { return c.regs().r10 } 32 func (c *sigctxt) fp() uint32 { return c.regs().fp } 33 func (c *sigctxt) ip() uint32 { return c.regs().ip } 34 func (c *sigctxt) sp() uint32 { return c.regs().sp } 35 func (c *sigctxt) lr() uint32 { return c.regs().lr } 36 37 //go:nosplit 38 //go:nowritebarrierrec 39 func (c *sigctxt) pc() uint32 { return c.regs().pc } 40 41 func (c *sigctxt) cpsr() uint32 { return c.regs().cpsr } 42 func (c *sigctxt) fault() uintptr { return uintptr(c.regs().fault_address) } 43 func (c *sigctxt) trap() uint32 { return c.regs().trap_no } 44 func (c *sigctxt) error() uint32 { return c.regs().error_code } 45 func (c *sigctxt) oldmask() uint32 { return c.regs().oldmask } 46 47 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) } 48 func (c *sigctxt) sigaddr() uint32 { return c.info.si_addr } 49 50 func (c *sigctxt) set_pc(x uint32) { c.regs().pc = x } 51 func (c *sigctxt) set_sp(x uint32) { c.regs().sp = x } 52 func (c *sigctxt) set_lr(x uint32) { c.regs().lr = x } 53 func (c *sigctxt) set_r10(x uint32) { c.regs().r10 = x } 54 55 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) } 56 func (c *sigctxt) set_sigaddr(x uint32) { 57 *(*uintptr)(add(unsafe.Pointer(c.info), 2*sys.PtrSize)) = uintptr(x) 58 } 59
