2008-06-21 16:36:23 -06:00
|
|
|
// Copyright 2009 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.
|
|
|
|
|
2011-12-16 13:46:25 -07:00
|
|
|
// +build amd64 386
|
|
|
|
|
2008-06-21 16:36:23 -06:00
|
|
|
#include "runtime.h"
|
2011-12-16 13:33:58 -07:00
|
|
|
#include "arch_GOARCH.h"
|
2010-03-23 18:01:17 -06:00
|
|
|
#include "malloc.h"
|
2008-06-21 16:36:23 -06:00
|
|
|
|
2010-05-21 15:40:21 -06:00
|
|
|
static uintptr isclosureentry(uintptr);
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
void runtime·deferproc(void);
|
|
|
|
void runtime·newproc(void);
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
void runtime·newstack(void);
|
|
|
|
void runtime·morestack(void);
|
2011-07-25 22:52:46 -06:00
|
|
|
void runtime·sigpanic(void);
|
2010-05-21 15:40:21 -06:00
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
// This code is also used for the 386 tracebacks.
|
|
|
|
// Use uintptr for an appropriate word-sized integer.
|
|
|
|
|
|
|
|
// Generic traceback. Handles runtime stack prints (pcbuf == nil)
|
|
|
|
// as well as the runtime.Callers function (pcbuf != nil).
|
|
|
|
// A little clunky to merge the two but avoids duplicating
|
|
|
|
// the code and all its subtlety.
|
2011-03-23 09:43:37 -06:00
|
|
|
int32
|
2012-12-18 09:30:29 -07:00
|
|
|
runtime·gentraceback(byte *pc0, byte *sp, byte *lr0, G *gp, int32 skip, uintptr *pcbuf, int32 max)
|
2008-06-21 16:36:23 -06:00
|
|
|
{
|
2010-03-23 18:01:17 -06:00
|
|
|
byte *p;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
int32 i, n, iter, sawnewstack;
|
|
|
|
uintptr pc, lr, tracepc;
|
|
|
|
byte *fp;
|
clean stack trace code.
format is unchanged but shows all frames
(old loop stopped one frame early).
wreck=; 6.out
cannot convert type *main.S·interface2 to interface main.I·interface2: missing method Foo
throw: interface conversion
SIGSEGV: segmentation violation
Faulting address: 0x0
pc: 0x256d
throw+0x46 /home/rsc/go/src/runtime/runtime.c:68
throw(0x863a, 0x0)
hashmap+0x188 /home/rsc/go/src/runtime/iface.c:167
hashmap(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
sys·ifaceT2I+0xa8 /home/rsc/go/src/runtime/iface.c:201
sys·ifaceT2I(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
main·main+0x4e /home/rsc/go/src/runtime/rt0_amd64_darwin.s:87
main·main()
mainstart+0xf /home/rsc/go/src/runtime/rt0_amd64.s:70
mainstart()
sys·goexit /home/rsc/go/src/runtime/proc.c:110
sys·goexit()
R=r
DELTA=44 (5 added, 15 deleted, 24 changed)
OCL=20358
CL=20368
2008-12-03 15:20:23 -07:00
|
|
|
Stktop *stk;
|
2008-11-23 18:08:55 -07:00
|
|
|
Func *f;
|
2011-07-25 22:52:46 -06:00
|
|
|
bool waspanic;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
|
2011-03-23 09:43:37 -06:00
|
|
|
USED(lr0);
|
2010-03-23 18:01:17 -06:00
|
|
|
pc = (uintptr)pc0;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
lr = 0;
|
|
|
|
fp = nil;
|
2011-07-25 22:52:46 -06:00
|
|
|
waspanic = false;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
|
|
|
|
// If the PC is goexit, the goroutine hasn't started yet.
|
2013-01-29 14:12:50 -07:00
|
|
|
if(pc0 == gp->sched.pc && sp == (byte*)gp->sched.sp && pc0 == (byte*)runtime·goexit && gp->entry != 0) {
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
fp = sp;
|
|
|
|
lr = pc;
|
2012-12-18 09:30:29 -07:00
|
|
|
pc = (uintptr)gp->entry;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
}
|
|
|
|
|
clean stack trace code.
format is unchanged but shows all frames
(old loop stopped one frame early).
wreck=; 6.out
cannot convert type *main.S·interface2 to interface main.I·interface2: missing method Foo
throw: interface conversion
SIGSEGV: segmentation violation
Faulting address: 0x0
pc: 0x256d
throw+0x46 /home/rsc/go/src/runtime/runtime.c:68
throw(0x863a, 0x0)
hashmap+0x188 /home/rsc/go/src/runtime/iface.c:167
hashmap(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
sys·ifaceT2I+0xa8 /home/rsc/go/src/runtime/iface.c:201
sys·ifaceT2I(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
main·main+0x4e /home/rsc/go/src/runtime/rt0_amd64_darwin.s:87
main·main()
mainstart+0xf /home/rsc/go/src/runtime/rt0_amd64.s:70
mainstart()
sys·goexit /home/rsc/go/src/runtime/proc.c:110
sys·goexit()
R=r
DELTA=44 (5 added, 15 deleted, 24 changed)
OCL=20358
CL=20368
2008-12-03 15:20:23 -07:00
|
|
|
// If the PC is zero, it's likely a nil function call.
|
|
|
|
// Start in the caller's frame.
|
|
|
|
if(pc == 0) {
|
2010-03-23 18:01:17 -06:00
|
|
|
pc = *(uintptr*)sp;
|
|
|
|
sp += sizeof(uintptr);
|
2008-11-03 16:22:15 -07:00
|
|
|
}
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
n = 0;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
sawnewstack = 0;
|
2012-12-18 09:30:29 -07:00
|
|
|
stk = (Stktop*)gp->stackbase;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
for(iter = 0; iter < 100 && n < max; iter++) { // iter avoids looping forever
|
|
|
|
// Typically:
|
|
|
|
// pc is the PC of the running function.
|
|
|
|
// sp is the stack pointer at that program counter.
|
|
|
|
// fp is the frame pointer (caller's stack pointer) at that program counter, or nil if unknown.
|
|
|
|
// stk is the stack containing sp.
|
|
|
|
// The caller's program counter is lr, unless lr is zero, in which case it is *(uintptr*)sp.
|
|
|
|
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
if(pc == (uintptr)runtime·lessstack) {
|
2010-03-23 18:01:17 -06:00
|
|
|
// Hit top of stack segment. Unwind to next segment.
|
2009-06-17 16:12:16 -06:00
|
|
|
pc = (uintptr)stk->gobuf.pc;
|
2012-05-30 11:07:52 -06:00
|
|
|
sp = (byte*)stk->gobuf.sp;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
lr = 0;
|
|
|
|
fp = nil;
|
2013-01-29 03:57:11 -07:00
|
|
|
if(pcbuf == nil && runtime·showframe(nil, gp == m->curg))
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
runtime·printf("----- stack segment boundary -----\n");
|
2009-06-17 16:12:16 -06:00
|
|
|
stk = (Stktop*)stk->stackbase;
|
2010-03-23 18:01:17 -06:00
|
|
|
continue;
|
2008-06-30 15:39:47 -06:00
|
|
|
}
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
if(pc <= 0x1000 || (f = runtime·findfunc(pc)) == nil) {
|
2010-03-23 18:01:17 -06:00
|
|
|
// Dangerous, but worthwhile: see if this is a closure:
|
|
|
|
// ADDQ $wwxxyyzz, SP; RET
|
|
|
|
// [48] 81 c4 zz yy xx ww c3
|
|
|
|
// The 0x48 byte is only on amd64.
|
|
|
|
p = (byte*)pc;
|
2010-09-08 22:28:56 -06:00
|
|
|
// We check p < p+8 to avoid wrapping and faulting if we lose track.
|
2013-02-15 12:27:03 -07:00
|
|
|
if(runtime·mheap->arena_start < p && p < p+8 && p+8 < runtime·mheap->arena_used && // pointer in allocated memory
|
2010-03-23 18:01:17 -06:00
|
|
|
(sizeof(uintptr) != 8 || *p++ == 0x48) && // skip 0x48 byte on amd64
|
|
|
|
p[0] == 0x81 && p[1] == 0xc4 && p[6] == 0xc3) {
|
|
|
|
sp += *(uint32*)(p+2);
|
|
|
|
pc = *(uintptr*)sp;
|
|
|
|
sp += sizeof(uintptr);
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
lr = 0;
|
|
|
|
fp = nil;
|
2009-02-06 14:46:56 -07:00
|
|
|
continue;
|
|
|
|
}
|
2010-05-21 15:40:21 -06:00
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
// Closure at top of stack, not yet started.
|
|
|
|
if(lr == (uintptr)runtime·goexit && (pc = isclosureentry(pc)) != 0) {
|
|
|
|
fp = sp;
|
2010-05-21 15:40:21 -06:00
|
|
|
continue;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
}
|
2010-05-21 15:40:21 -06:00
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
// Unknown pc: stop.
|
2010-03-23 18:01:17 -06:00
|
|
|
break;
|
2008-11-25 18:17:54 -07:00
|
|
|
}
|
2008-06-30 15:39:47 -06:00
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
// Found an actual function.
|
|
|
|
if(fp == nil) {
|
|
|
|
fp = sp;
|
|
|
|
if(pc > f->entry && f->frame >= sizeof(uintptr))
|
|
|
|
fp += f->frame - sizeof(uintptr);
|
|
|
|
if(lr == 0)
|
|
|
|
lr = *(uintptr*)fp;
|
|
|
|
fp += sizeof(uintptr);
|
|
|
|
} else if(lr == 0)
|
|
|
|
lr = *(uintptr*)fp;
|
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
if(skip > 0)
|
|
|
|
skip--;
|
|
|
|
else if(pcbuf != nil)
|
|
|
|
pcbuf[n++] = pc;
|
|
|
|
else {
|
2013-01-29 03:57:11 -07:00
|
|
|
if(runtime·showframe(f, gp == m->curg)) {
|
2011-08-22 21:26:39 -06:00
|
|
|
// Print during crash.
|
|
|
|
// main(0x1, 0x2, 0x3)
|
|
|
|
// /home/rsc/go/src/runtime/x.go:23 +0xf
|
|
|
|
//
|
|
|
|
tracepc = pc; // back up to CALL instruction for funcline.
|
|
|
|
if(n > 0 && pc > f->entry && !waspanic)
|
|
|
|
tracepc--;
|
2013-02-15 12:48:47 -07:00
|
|
|
if(m->throwing && gp == m->curg)
|
|
|
|
runtime·printf("[fp=%p] ", fp);
|
2011-08-22 21:26:39 -06:00
|
|
|
runtime·printf("%S(", f->name);
|
|
|
|
for(i = 0; i < f->args; i++) {
|
|
|
|
if(i != 0)
|
|
|
|
runtime·prints(", ");
|
|
|
|
runtime·printhex(((uintptr*)fp)[i]);
|
|
|
|
if(i >= 4) {
|
|
|
|
runtime·prints(", ...");
|
|
|
|
break;
|
|
|
|
}
|
2010-03-23 18:01:17 -06:00
|
|
|
}
|
2011-08-22 21:26:39 -06:00
|
|
|
runtime·prints(")\n");
|
|
|
|
runtime·printf("\t%S:%d", f->src, runtime·funcline(f, tracepc));
|
|
|
|
if(pc > f->entry)
|
|
|
|
runtime·printf(" +%p", (uintptr)(pc - f->entry));
|
|
|
|
runtime·printf("\n");
|
2008-11-25 18:17:54 -07:00
|
|
|
}
|
2010-03-23 18:01:17 -06:00
|
|
|
n++;
|
2008-06-21 16:36:23 -06:00
|
|
|
}
|
2010-03-23 18:01:17 -06:00
|
|
|
|
2011-07-25 22:52:46 -06:00
|
|
|
waspanic = f->entry == (uintptr)runtime·sigpanic;
|
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
if(f->entry == (uintptr)runtime·deferproc || f->entry == (uintptr)runtime·newproc)
|
|
|
|
fp += 2*sizeof(uintptr);
|
|
|
|
|
|
|
|
if(f->entry == (uintptr)runtime·newstack)
|
|
|
|
sawnewstack = 1;
|
|
|
|
|
2012-12-18 09:30:29 -07:00
|
|
|
if(pcbuf == nil && f->entry == (uintptr)runtime·morestack && gp == m->g0 && sawnewstack) {
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
// The fact that we saw newstack means that morestack
|
|
|
|
// has managed to record its information in m, so we can
|
|
|
|
// use it to keep unwinding the stack.
|
2012-10-26 00:13:06 -06:00
|
|
|
runtime·printf("----- morestack called from goroutine %D -----\n", m->curg->goid);
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
pc = (uintptr)m->morepc;
|
2012-05-30 11:07:52 -06:00
|
|
|
sp = (byte*)m->morebuf.sp - sizeof(void*);
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
lr = (uintptr)m->morebuf.pc;
|
2012-05-30 11:07:52 -06:00
|
|
|
fp = (byte*)m->morebuf.sp;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
sawnewstack = 0;
|
2012-12-18 09:30:29 -07:00
|
|
|
gp = m->curg;
|
|
|
|
stk = (Stktop*)gp->stackbase;
|
2010-05-21 15:40:21 -06:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2012-12-18 09:30:29 -07:00
|
|
|
if(pcbuf == nil && f->entry == (uintptr)runtime·lessstack && gp == m->g0) {
|
2011-02-23 12:47:22 -07:00
|
|
|
// Lessstack is running on scheduler stack. Switch to original goroutine.
|
2012-10-26 00:13:06 -06:00
|
|
|
runtime·printf("----- lessstack called from goroutine %D -----\n", m->curg->goid);
|
2012-12-18 09:30:29 -07:00
|
|
|
gp = m->curg;
|
|
|
|
stk = (Stktop*)gp->stackbase;
|
2012-05-30 11:07:52 -06:00
|
|
|
sp = (byte*)stk->gobuf.sp;
|
2011-02-23 12:47:22 -07:00
|
|
|
pc = (uintptr)stk->gobuf.pc;
|
|
|
|
fp = nil;
|
|
|
|
lr = 0;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
// Unwind to next frame.
|
|
|
|
pc = lr;
|
|
|
|
lr = 0;
|
|
|
|
sp = fp;
|
|
|
|
fp = nil;
|
2008-06-21 16:36:23 -06:00
|
|
|
}
|
2011-03-02 11:42:02 -07:00
|
|
|
|
2011-08-22 21:26:39 -06:00
|
|
|
// Show what created goroutine, except main goroutine (goid 1).
|
2013-01-29 03:57:11 -07:00
|
|
|
if(pcbuf == nil && (pc = gp->gopc) != 0 && (f = runtime·findfunc(pc)) != nil
|
|
|
|
&& runtime·showframe(f, gp == m->curg) && gp->goid != 1) {
|
2011-08-22 21:26:39 -06:00
|
|
|
runtime·printf("created by %S\n", f->name);
|
2011-03-02 11:42:02 -07:00
|
|
|
tracepc = pc; // back up to CALL instruction for funcline.
|
|
|
|
if(n > 0 && pc > f->entry)
|
|
|
|
tracepc--;
|
2011-08-22 21:26:39 -06:00
|
|
|
runtime·printf("\t%S:%d", f->src, runtime·funcline(f, tracepc));
|
|
|
|
if(pc > f->entry)
|
|
|
|
runtime·printf(" +%p", (uintptr)(pc - f->entry));
|
|
|
|
runtime·printf("\n");
|
2011-03-02 11:42:02 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
return n;
|
2008-06-21 16:36:23 -06:00
|
|
|
}
|
2009-01-09 16:52:43 -07:00
|
|
|
|
|
|
|
void
|
2012-12-18 09:30:29 -07:00
|
|
|
runtime·traceback(byte *pc0, byte *sp, byte*, G *gp)
|
2009-01-09 16:52:43 -07:00
|
|
|
{
|
2013-02-01 09:34:41 -07:00
|
|
|
if(gp->status == Gsyscall) {
|
|
|
|
// Override signal registers if blocked in system call.
|
|
|
|
pc0 = gp->sched.pc;
|
|
|
|
sp = (byte*)gp->sched.sp;
|
|
|
|
}
|
2012-12-18 09:30:29 -07:00
|
|
|
runtime·gentraceback(pc0, sp, nil, gp, 0, nil, 100);
|
2010-03-23 18:01:17 -06:00
|
|
|
}
|
2009-01-09 16:52:43 -07:00
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
int32
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·callers(int32 skip, uintptr *pcbuf, int32 m)
|
2010-03-23 18:01:17 -06:00
|
|
|
{
|
|
|
|
byte *pc, *sp;
|
2009-01-09 16:52:43 -07:00
|
|
|
|
2010-03-23 18:01:17 -06:00
|
|
|
// our caller's pc, sp.
|
|
|
|
sp = (byte*)&skip;
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
pc = runtime·getcallerpc(&skip);
|
2009-01-09 16:52:43 -07:00
|
|
|
|
2011-03-23 09:43:37 -06:00
|
|
|
return runtime·gentraceback(pc, sp, nil, g, skip, pcbuf, m);
|
2009-01-09 16:52:43 -07:00
|
|
|
}
|
2010-05-21 15:40:21 -06:00
|
|
|
|
|
|
|
static uintptr
|
|
|
|
isclosureentry(uintptr pc)
|
|
|
|
{
|
|
|
|
byte *p;
|
|
|
|
int32 i, siz;
|
|
|
|
|
|
|
|
p = (byte*)pc;
|
2013-02-15 12:27:03 -07:00
|
|
|
if(p < runtime·mheap->arena_start || p+32 > runtime·mheap->arena_used)
|
2010-05-21 15:40:21 -06:00
|
|
|
return 0;
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
|
|
|
|
if(*p == 0xe8) {
|
|
|
|
// CALL fn
|
|
|
|
return pc+5+*(int32*)(p+1);
|
|
|
|
}
|
2010-05-21 15:40:21 -06:00
|
|
|
|
runtime: more detailed panic traces, line number work
Follow morestack, so that crashes during a stack split
give complete traces. Also mark stack segment boundaries
as an aid to debugging.
Correct various line number bugs with yet another attempt
at interpreting the pc/ln table. This one has a chance at
being correct, because I based it on reading src/cmd/ld/lib.c
instead of on reading the documentation.
Fixes #1138.
Fixes #1430.
Fixes #1461.
throw: runtime: split stack overflow
runtime.throw+0x3e /home/rsc/g/go2/src/pkg/runtime/runtime.c:78
runtime.throw(0x81880af, 0xf75c8b18)
runtime.newstack+0xad /home/rsc/g/go2/src/pkg/runtime/proc.c:728
runtime.newstack()
runtime.morestack+0x4f /home/rsc/g/go2/src/pkg/runtime/386/asm.s:184
runtime.morestack()
----- morestack called from stack: -----
runtime.new+0x1a /home/rsc/g/go2/src/pkg/runtime/malloc.c:288
runtime.new(0x1, 0x0, 0x0)
gongo.makeBoard+0x33 /tmp/Gongo/gongo_robot_test.go:344
gongo.makeBoard(0x809d238, 0x1, 0xf76092c8, 0x1)
----- stack segment boundary -----
gongo.checkEasyScore+0xcc /tmp/Gongo/gongo_robot_test.go:287
gongo.checkEasyScore(0xf764b710, 0x0, 0x809d238, 0x1)
gongo.TestEasyScore+0x8c /tmp/Gongo/gongo_robot_test.go:255
gongo.TestEasyScore(0xf764b710, 0x818a990)
testing.tRunner+0x2f /home/rsc/g/go2/src/pkg/testing/testing.go:132
testing.tRunner(0xf764b710, 0xf763b5dc, 0x0)
runtime.goexit /home/rsc/g/go2/src/pkg/runtime/proc.c:149
runtime.goexit()
R=ken2, r
CC=golang-dev
https://golang.org/cl/4000053
2011-02-02 14:44:20 -07:00
|
|
|
if(sizeof(uintptr) == 8 && p[0] == 0x48 && p[1] == 0xb9 && p[10] == 0xff && p[11] == 0xd1) {
|
|
|
|
// MOVQ $fn, CX; CALL *CX
|
|
|
|
return *(uintptr*)(p+2);
|
|
|
|
}
|
|
|
|
|
2010-05-21 15:40:21 -06:00
|
|
|
// SUBQ $siz, SP
|
|
|
|
if((sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0x81 || *p++ != 0xec)
|
|
|
|
return 0;
|
|
|
|
siz = *(uint32*)p;
|
|
|
|
p += 4;
|
|
|
|
|
|
|
|
// MOVQ $q, SI
|
|
|
|
if((sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0xbe)
|
|
|
|
return 0;
|
|
|
|
p += sizeof(uintptr);
|
|
|
|
|
|
|
|
// MOVQ SP, DI
|
|
|
|
if((sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0x89 || *p++ != 0xe7)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
// CLD on 32-bit
|
|
|
|
if(sizeof(uintptr) == 4 && *p++ != 0xfc)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if(siz <= 4*sizeof(uintptr)) {
|
|
|
|
// MOVSQ...
|
|
|
|
for(i=0; i<siz; i+=sizeof(uintptr))
|
|
|
|
if((sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0xa5)
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
// MOVQ $(siz/8), CX [32-bit immediate siz/8]
|
|
|
|
if((sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0xc7 || *p++ != 0xc1)
|
|
|
|
return 0;
|
|
|
|
p += 4;
|
|
|
|
|
|
|
|
// REP MOVSQ
|
|
|
|
if(*p++ != 0xf3 || (sizeof(uintptr) == 8 && *p++ != 0x48) || *p++ != 0xa5)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
// CALL fn
|
|
|
|
if(*p == 0xe8) {
|
|
|
|
p++;
|
|
|
|
return (uintptr)p+4 + *(int32*)p;
|
|
|
|
}
|
|
|
|
|
|
|
|
// MOVQ $fn, CX; CALL *CX
|
|
|
|
if(sizeof(uintptr) != 8 || *p++ != 0x48 || *p++ != 0xb9)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
pc = *(uintptr*)p;
|
|
|
|
p += 8;
|
|
|
|
|
|
|
|
if(*p++ != 0xff || *p != 0xd1)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return pc;
|
|
|
|
}
|