diff options
Diffstat (limited to 'src/pkg/runtime/signal_386.c')
-rw-r--r-- | src/pkg/runtime/signal_386.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/src/pkg/runtime/signal_386.c b/src/pkg/runtime/signal_386.c deleted file mode 100644 index 70fcc6a63..000000000 --- a/src/pkg/runtime/signal_386.c +++ /dev/null @@ -1,122 +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. - -// +build darwin dragonfly freebsd linux nacl netbsd openbsd - -#include "runtime.h" -#include "defs_GOOS_GOARCH.h" -#include "os_GOOS.h" -#include "signal_GOOS_GOARCH.h" -#include "signals_GOOS.h" - -void -runtime·dumpregs(Siginfo *info, void *ctxt) -{ - USED(info); - USED(ctxt); - - runtime·printf("eax %x\n", SIG_EAX(info, ctxt)); - runtime·printf("ebx %x\n", SIG_EBX(info, ctxt)); - runtime·printf("ecx %x\n", SIG_ECX(info, ctxt)); - runtime·printf("edx %x\n", SIG_EDX(info, ctxt)); - runtime·printf("edi %x\n", SIG_EDI(info, ctxt)); - runtime·printf("esi %x\n", SIG_ESI(info, ctxt)); - runtime·printf("ebp %x\n", SIG_EBP(info, ctxt)); - runtime·printf("esp %x\n", SIG_ESP(info, ctxt)); - runtime·printf("eip %x\n", SIG_EIP(info, ctxt)); - runtime·printf("eflags %x\n", SIG_EFLAGS(info, ctxt)); - runtime·printf("cs %x\n", SIG_CS(info, ctxt)); - runtime·printf("fs %x\n", SIG_FS(info, ctxt)); - runtime·printf("gs %x\n", SIG_GS(info, ctxt)); -} - -void -runtime·sighandler(int32 sig, Siginfo *info, void *ctxt, G *gp) -{ - uintptr *sp; - SigTab *t; - bool crash; - - if(sig == SIGPROF) { - runtime·sigprof((byte*)SIG_EIP(info, ctxt), (byte*)SIG_ESP(info, ctxt), nil, gp, m); - return; - } - - t = &runtime·sigtab[sig]; - if(SIG_CODE0(info, ctxt) != SI_USER && (t->flags & SigPanic)) { - // Make it look like a call to the signal func. - // Have to pass arguments out of band since - // augmenting the stack frame would break - // the unwinding code. - gp->sig = sig; - gp->sigcode0 = SIG_CODE0(info, ctxt); - gp->sigcode1 = SIG_CODE1(info, ctxt); - gp->sigpc = SIG_EIP(info, ctxt); - -#ifdef GOOS_darwin - // Work around Leopard bug that doesn't set FPE_INTDIV. - // Look at instruction to see if it is a divide. - // Not necessary in Snow Leopard (si_code will be != 0). - if(sig == SIGFPE && gp->sigcode0 == 0) { - byte *pc; - pc = (byte*)gp->sigpc; - if(pc[0] == 0x66) // 16-bit instruction prefix - pc++; - if(pc[0] == 0xF6 || pc[0] == 0xF7) - gp->sigcode0 = FPE_INTDIV; - } -#endif - - // Only push runtime·sigpanic if eip != 0. - // If eip == 0, probably panicked because of a - // call to a nil func. Not pushing that onto sp will - // make the trace look like a call to runtime·sigpanic instead. - // (Otherwise the trace will end at runtime·sigpanic and we - // won't get to see who faulted.) - if(SIG_EIP(info, ctxt) != 0) { - sp = (uintptr*)SIG_ESP(info, ctxt); - *--sp = SIG_EIP(info, ctxt); - SIG_ESP(info, ctxt) = (uintptr)sp; - } - SIG_EIP(info, ctxt) = (uintptr)runtime·sigpanic; - return; - } - - if(SIG_CODE0(info, ctxt) == SI_USER || (t->flags & SigNotify)) - if(runtime·sigsend(sig)) - return; - if(t->flags & SigKill) - runtime·exit(2); - if(!(t->flags & SigThrow)) - return; - - m->throwing = 1; - m->caughtsig = gp; - runtime·startpanic(); - - if(sig < 0 || sig >= NSIG) - runtime·printf("Signal %d\n", sig); - else - runtime·printf("%s\n", runtime·sigtab[sig].name); - - runtime·printf("PC=%x\n", SIG_EIP(info, ctxt)); - if(m->lockedg != nil && m->ncgo > 0 && gp == m->g0) { - runtime·printf("signal arrived during cgo execution\n"); - gp = m->lockedg; - } - runtime·printf("\n"); - - if(runtime·gotraceback(&crash)){ - runtime·goroutineheader(gp); - runtime·traceback(SIG_EIP(info, ctxt), SIG_ESP(info, ctxt), 0, gp); - runtime·tracebackothers(gp); - runtime·printf("\n"); - runtime·dumpregs(info, ctxt); - } - - if(crash) - runtime·crash(); - - runtime·exit(2); -} |