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      1 // Copyright 2016 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 // +build linux
      6 // +build mips mipsle
      7 
      8 package runtime
      9 
     10 import "unsafe"
     11 
     12 type sigctxt struct {
     13 	info *siginfo
     14 	ctxt unsafe.Pointer
     15 }
     16 
     17 func (c *sigctxt) regs() *sigcontext { return &(*ucontext)(c.ctxt).uc_mcontext }
     18 func (c *sigctxt) r0() uint32        { return uint32(c.regs().sc_regs[0]) }
     19 func (c *sigctxt) r1() uint32        { return uint32(c.regs().sc_regs[1]) }
     20 func (c *sigctxt) r2() uint32        { return uint32(c.regs().sc_regs[2]) }
     21 func (c *sigctxt) r3() uint32        { return uint32(c.regs().sc_regs[3]) }
     22 func (c *sigctxt) r4() uint32        { return uint32(c.regs().sc_regs[4]) }
     23 func (c *sigctxt) r5() uint32        { return uint32(c.regs().sc_regs[5]) }
     24 func (c *sigctxt) r6() uint32        { return uint32(c.regs().sc_regs[6]) }
     25 func (c *sigctxt) r7() uint32        { return uint32(c.regs().sc_regs[7]) }
     26 func (c *sigctxt) r8() uint32        { return uint32(c.regs().sc_regs[8]) }
     27 func (c *sigctxt) r9() uint32        { return uint32(c.regs().sc_regs[9]) }
     28 func (c *sigctxt) r10() uint32       { return uint32(c.regs().sc_regs[10]) }
     29 func (c *sigctxt) r11() uint32       { return uint32(c.regs().sc_regs[11]) }
     30 func (c *sigctxt) r12() uint32       { return uint32(c.regs().sc_regs[12]) }
     31 func (c *sigctxt) r13() uint32       { return uint32(c.regs().sc_regs[13]) }
     32 func (c *sigctxt) r14() uint32       { return uint32(c.regs().sc_regs[14]) }
     33 func (c *sigctxt) r15() uint32       { return uint32(c.regs().sc_regs[15]) }
     34 func (c *sigctxt) r16() uint32       { return uint32(c.regs().sc_regs[16]) }
     35 func (c *sigctxt) r17() uint32       { return uint32(c.regs().sc_regs[17]) }
     36 func (c *sigctxt) r18() uint32       { return uint32(c.regs().sc_regs[18]) }
     37 func (c *sigctxt) r19() uint32       { return uint32(c.regs().sc_regs[19]) }
     38 func (c *sigctxt) r20() uint32       { return uint32(c.regs().sc_regs[20]) }
     39 func (c *sigctxt) r21() uint32       { return uint32(c.regs().sc_regs[21]) }
     40 func (c *sigctxt) r22() uint32       { return uint32(c.regs().sc_regs[22]) }
     41 func (c *sigctxt) r23() uint32       { return uint32(c.regs().sc_regs[23]) }
     42 func (c *sigctxt) r24() uint32       { return uint32(c.regs().sc_regs[24]) }
     43 func (c *sigctxt) r25() uint32       { return uint32(c.regs().sc_regs[25]) }
     44 func (c *sigctxt) r26() uint32       { return uint32(c.regs().sc_regs[26]) }
     45 func (c *sigctxt) r27() uint32       { return uint32(c.regs().sc_regs[27]) }
     46 func (c *sigctxt) r28() uint32       { return uint32(c.regs().sc_regs[28]) }
     47 func (c *sigctxt) r29() uint32       { return uint32(c.regs().sc_regs[29]) }
     48 func (c *sigctxt) r30() uint32       { return uint32(c.regs().sc_regs[30]) }
     49 func (c *sigctxt) r31() uint32       { return uint32(c.regs().sc_regs[31]) }
     50 func (c *sigctxt) sp() uint32        { return uint32(c.regs().sc_regs[29]) }
     51 func (c *sigctxt) pc() uint32        { return uint32(c.regs().sc_pc) }
     52 func (c *sigctxt) link() uint32      { return uint32(c.regs().sc_regs[31]) }
     53 func (c *sigctxt) lo() uint32        { return uint32(c.regs().sc_mdlo) }
     54 func (c *sigctxt) hi() uint32        { return uint32(c.regs().sc_mdhi) }
     55 
     56 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
     57 func (c *sigctxt) sigaddr() uint32 { return c.info.si_addr }
     58 
     59 func (c *sigctxt) set_r30(x uint32)  { c.regs().sc_regs[30] = uint64(x) }
     60 func (c *sigctxt) set_pc(x uint32)   { c.regs().sc_pc = uint64(x) }
     61 func (c *sigctxt) set_sp(x uint32)   { c.regs().sc_regs[29] = uint64(x) }
     62 func (c *sigctxt) set_link(x uint32) { c.regs().sc_regs[31] = uint64(x) }
     63 
     64 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
     65 func (c *sigctxt) set_sigaddr(x uint32) { c.info.si_addr = x }
     66