diff options
Diffstat (limited to 'src/runtime/traceback.go')
| -rw-r--r-- | src/runtime/traceback.go | 58 |
1 files changed, 12 insertions, 46 deletions
diff --git a/src/runtime/traceback.go b/src/runtime/traceback.go index 814c323634..addfa6faac 100644 --- a/src/runtime/traceback.go +++ b/src/runtime/traceback.go @@ -6,6 +6,7 @@ package runtime import ( "internal/bytealg" + "internal/goarch" "runtime/internal/atomic" "runtime/internal/sys" "unsafe" @@ -21,41 +22,6 @@ import ( const usesLR = sys.MinFrameSize > 0 -// Traceback over the deferred function calls. -// Report them like calls that have been invoked but not started executing yet. -func tracebackdefers(gp *g, callback func(*stkframe, unsafe.Pointer) bool, v unsafe.Pointer) { - var frame stkframe - for d := gp._defer; d != nil; d = d.link { - fn := d.fn - if fn == nil { - // Defer of nil function. Args don't matter. - frame.pc = 0 - frame.fn = funcInfo{} - frame.argp = 0 - frame.arglen = 0 - frame.argmap = nil - } else { - frame.pc = fn.fn - f := findfunc(frame.pc) - if !f.valid() { - print("runtime: unknown pc in defer ", hex(frame.pc), "\n") - throw("unknown pc") - } - frame.fn = f - frame.argp = uintptr(deferArgs(d)) - var ok bool - frame.arglen, frame.argmap, ok = getArgInfoFast(f, true) - if !ok { - frame.arglen, frame.argmap = getArgInfo(&frame, f, true, fn) - } - } - frame.continpc = frame.pc - if !callback((*stkframe)(noescape(unsafe.Pointer(&frame))), v) { - return - } - } -} - // Generic traceback. Handles runtime stack prints (pcbuf == nil), // the runtime.Callers function (pcbuf != nil), as well as the garbage // collector (callback != nil). A little clunky to merge these, but avoids @@ -126,7 +92,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in frame.lr = 0 } else { frame.pc = uintptr(*(*uintptr)(unsafe.Pointer(frame.sp))) - frame.sp += sys.PtrSize + frame.sp += goarch.PtrSize } } @@ -207,7 +173,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in frame.fp = frame.sp + uintptr(funcspdelta(f, frame.pc, &cache)) if !usesLR { // On x86, call instruction pushes return PC before entering new function. - frame.fp += sys.PtrSize + frame.fp += goarch.PtrSize } } var flr funcInfo @@ -248,7 +214,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in } } else { if frame.lr == 0 { - lrPtr = frame.fp - sys.PtrSize + lrPtr = frame.fp - goarch.PtrSize frame.lr = uintptr(*(*uintptr)(unsafe.Pointer(lrPtr))) } } @@ -279,7 +245,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in frame.varp = frame.fp if !usesLR { // On x86, call instruction pushes return PC before entering new function. - frame.varp -= sys.PtrSize + frame.varp -= goarch.PtrSize } // For architectures with frame pointers, if there's @@ -300,7 +266,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in // And it happens to end up mimicking the x86 layout. // Other architectures may make different decisions. if frame.varp > frame.sp && framepointer_enabled { - frame.varp -= sys.PtrSize + frame.varp -= goarch.PtrSize } // Derive size of arguments. @@ -603,7 +569,7 @@ func printArgs(f funcInfo, argp unsafe.Pointer) { // mask out irrelavant bits if sz < 8 { shift := 64 - sz*8 - if sys.BigEndian { + if goarch.BigEndian { x = x >> shift } else { x = x << shift >> shift @@ -700,16 +666,16 @@ func getArgInfo(frame *stkframe, f funcInfo, needArgMap bool, ctxt *funcval) (ar // Figure out whether the return values are valid. // Reflect will update this value after it copies // in the return values. - retValid = *(*bool)(unsafe.Pointer(arg0 + 4*sys.PtrSize)) + retValid = *(*bool)(unsafe.Pointer(arg0 + 4*goarch.PtrSize)) } if mv.fn != f.entry { print("runtime: confused by ", funcname(f), "\n") throw("reflect mismatch") } bv := mv.stack - arglen = uintptr(bv.n * sys.PtrSize) + arglen = uintptr(bv.n * goarch.PtrSize) if !retValid { - arglen = uintptr(mv.argLen) &^ (sys.PtrSize - 1) + arglen = uintptr(mv.argLen) &^ (goarch.PtrSize - 1) } argmap = bv } @@ -1045,8 +1011,8 @@ func tracebackothers(me *g) { // for debugging purposes. If the address bad is included in the // hexdumped range, it will mark it as well. func tracebackHexdump(stk stack, frame *stkframe, bad uintptr) { - const expand = 32 * sys.PtrSize - const maxExpand = 256 * sys.PtrSize + const expand = 32 * goarch.PtrSize + const maxExpand = 256 * goarch.PtrSize // Start around frame.sp. lo, hi := frame.sp, frame.sp // Expand to include frame.fp. |