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[dev.cc] runtime: convert openbsd/386 port to Go 

LGTM=rsc
R=golang-codereviews, bradfitz, rsc
CC=golang-codereviews
https://golang.org/cl/173200044
This commit is contained in:
Joel Sing 2014-11-15 03:55:14 +11:00
parent 9d6825edee
commit 9ad6b7e322
5 changed files with 82 additions and 52 deletions
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64
src/runtime/defs_openbsd_386.go
View File

@ -85,38 +85,38 @@ const (
)
type tforkt struct {
tf_tcb *byte
tf_tcb unsafe.Pointer
tf_tid *int32
tf_stack *byte
tf_stack uintptr
}
type sigaltstackt struct {
ss_sp *byte
ss_size uint32
ss_sp uintptr
ss_size uintptr
ss_flags int32
}
type sigcontext struct {
sc_gs int32
sc_fs int32
sc_es int32
sc_ds int32
sc_edi int32
sc_esi int32
sc_ebp int32
sc_ebx int32
sc_edx int32
sc_ecx int32
sc_eax int32
sc_eip int32
sc_cs int32
sc_eflags int32
sc_esp int32
sc_ss int32
__sc_unused int32
sc_mask int32
sc_trapno int32
sc_err int32
sc_gs uint32
sc_fs uint32
sc_es uint32
sc_ds uint32
sc_edi uint32
sc_esi uint32
sc_ebp uint32
sc_ebx uint32
sc_edx uint32
sc_ecx uint32
sc_eax uint32
sc_eip uint32
sc_cs uint32
sc_eflags uint32
sc_esp uint32
sc_ss uint32
__sc_unused uint32
sc_mask uint32
sc_trapno uint32
sc_err uint32
sc_fpstate unsafe.Pointer
}
@ -128,8 +128,8 @@ type siginfo struct {
}
type stackt struct {
ss_sp *byte
ss_size uint32
ss_sp uintptr
ss_size uintptr
ss_flags int32
}
@ -138,11 +138,23 @@ type timespec struct {
tv_nsec int32
}
func (ts *timespec) set_sec(x int32) {
ts.tv_sec = int64(x)
}
func (ts *timespec) set_nsec(x int32) {
ts.tv_nsec = x
}
type timeval struct {
tv_sec int64
tv_usec int32
}
func (tv *timeval) set_usec(x int32) {
tv.tv_usec = x
}
type itimerval struct {
it_interval timeval
it_value timeval

4
src/runtime/defs_openbsd_amd64.go
View File

@ -92,7 +92,7 @@ type tforkt struct {
type sigaltstackt struct {
ss_sp uintptr
ss_size uint64
ss_size uintptr
ss_flags int32
pad_cgo_0 [4]byte
}
@ -139,7 +139,7 @@ type siginfo struct {
type stackt struct {
ss_sp uintptr
ss_size uint64
ss_size uintptr
ss_flags int32
pad_cgo_0 [4]byte
}

2
src/runtime/os1_openbsd.go
View File

@ -222,7 +222,7 @@ func signalstack(p *byte, n int32) {
var st stackt
st.ss_sp = uintptr(unsafe.Pointer(p))
st.ss_size = uint64(n)
st.ss_size = uintptr(n)
st.ss_flags = 0
if p == nil {
st.ss_flags = _SS_DISABLE

41
src/runtime/signal_openbsd_386.go Normal file
View File

@ -0,0 +1,41 @@
// 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 "unsafe"
type sigctxt struct {
info *siginfo
ctxt unsafe.Pointer
}
func (c *sigctxt) regs() *sigcontext {
return (*sigcontext)(c.ctxt)
}
func (c *sigctxt) eax() uint32 { return c.regs().sc_eax }
func (c *sigctxt) ebx() uint32 { return c.regs().sc_ebx }
func (c *sigctxt) ecx() uint32 { return c.regs().sc_ecx }
func (c *sigctxt) edx() uint32 { return c.regs().sc_edx }
func (c *sigctxt) edi() uint32 { return c.regs().sc_edi }
func (c *sigctxt) esi() uint32 { return c.regs().sc_esi }
func (c *sigctxt) ebp() uint32 { return c.regs().sc_ebp }
func (c *sigctxt) esp() uint32 { return c.regs().sc_esp }
func (c *sigctxt) eip() uint32 { return c.regs().sc_eip }
func (c *sigctxt) eflags() uint32 { return c.regs().sc_eflags }
func (c *sigctxt) cs() uint32 { return c.regs().sc_cs }
func (c *sigctxt) fs() uint32 { return c.regs().sc_fs }
func (c *sigctxt) gs() uint32 { return c.regs().sc_gs }
func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
func (c *sigctxt) sigaddr() uint32 {
return *(*uint32)(add(unsafe.Pointer(c.info), 12))
}
func (c *sigctxt) set_eip(x uint32) { c.regs().sc_eip = x }
func (c *sigctxt) set_esp(x uint32) { c.regs().sc_esp = x }
func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
func (c *sigctxt) set_sigaddr(x uint32) {
*(*uint32)(add(unsafe.Pointer(c.info), 12)) = x
}

23
src/runtime/signal_openbsd_386.h
View File

@ -1,23 +0,0 @@
// 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.
#define SIG_REGS(ctxt) (*(Sigcontext*)(ctxt))
#define SIG_EAX(info, ctxt) (SIG_REGS(ctxt).sc_eax)
#define SIG_EBX(info, ctxt) (SIG_REGS(ctxt).sc_ebx)
#define SIG_ECX(info, ctxt) (SIG_REGS(ctxt).sc_ecx)
#define SIG_EDX(info, ctxt) (SIG_REGS(ctxt).sc_edx)
#define SIG_EDI(info, ctxt) (SIG_REGS(ctxt).sc_edi)
#define SIG_ESI(info, ctxt) (SIG_REGS(ctxt).sc_esi)
#define SIG_EBP(info, ctxt) (SIG_REGS(ctxt).sc_ebp)
#define SIG_ESP(info, ctxt) (SIG_REGS(ctxt).sc_esp)
#define SIG_EIP(info, ctxt) (SIG_REGS(ctxt).sc_eip)
#define SIG_EFLAGS(info, ctxt) (SIG_REGS(ctxt).sc_eflags)
#define SIG_CS(info, ctxt) (SIG_REGS(ctxt).sc_cs)
#define SIG_FS(info, ctxt) (SIG_REGS(ctxt).sc_fs)
#define SIG_GS(info, ctxt) (SIG_REGS(ctxt).sc_gs)
#define SIG_CODE0(info, ctxt) ((info)->si_code)
#define SIG_CODE1(info, ctxt) (*(uintptr*)((byte*)info + 12))