diff options
Diffstat (limited to 'src/pkg/runtime/signal_netbsd_amd64.c')
| -rw-r--r-- | src/pkg/runtime/signal_netbsd_amd64.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/pkg/runtime/signal_netbsd_amd64.c b/src/pkg/runtime/signal_netbsd_amd64.c deleted file mode 100644 index 46afb682b..000000000 --- a/src/pkg/runtime/signal_netbsd_amd64.c +++ /dev/null @@ -1,172 +0,0 @@ -// 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. - -#include "runtime.h" -#include "defs_GOOS_GOARCH.h" -#include "signals_GOOS.h" -#include "os_GOOS.h" - -extern void runtime·lwp_tramp(void); -extern void runtime·sigtramp(void); - -typedef struct sigaction { - union { - void (*_sa_handler)(int32); - void (*_sa_sigaction)(int32, Siginfo*, void *); - } _sa_u; /* signal handler */ - uint32 sa_mask[4]; /* signal mask to apply */ - int32 sa_flags; /* see signal options below */ -} Sigaction; - -void -runtime·dumpregs(McontextT *mc) -{ - runtime·printf("rax %X\n", mc->__gregs[REG_RAX]); - runtime·printf("rbx %X\n", mc->__gregs[REG_RBX]); - runtime·printf("rcx %X\n", mc->__gregs[REG_RCX]); - runtime·printf("rdx %X\n", mc->__gregs[REG_RDX]); - runtime·printf("rdi %X\n", mc->__gregs[REG_RDI]); - runtime·printf("rsi %X\n", mc->__gregs[REG_RSI]); - runtime·printf("rbp %X\n", mc->__gregs[REG_RBP]); - runtime·printf("rsp %X\n", mc->__gregs[REG_RSP]); - runtime·printf("r8 %X\n", mc->__gregs[REG_R8]); - runtime·printf("r9 %X\n", mc->__gregs[REG_R9]); - runtime·printf("r10 %X\n", mc->__gregs[REG_R10]); - runtime·printf("r11 %X\n", mc->__gregs[REG_R11]); - runtime·printf("r12 %X\n", mc->__gregs[REG_R12]); - runtime·printf("r13 %X\n", mc->__gregs[REG_R13]); - runtime·printf("r14 %X\n", mc->__gregs[REG_R14]); - runtime·printf("r15 %X\n", mc->__gregs[REG_R15]); - runtime·printf("rip %X\n", mc->__gregs[REG_RIP]); - runtime·printf("rflags %X\n", mc->__gregs[REG_RFLAGS]); - runtime·printf("cs %X\n", mc->__gregs[REG_CS]); - runtime·printf("fs %X\n", mc->__gregs[REG_FS]); - runtime·printf("gs %X\n", mc->__gregs[REG_GS]); -} - -void -runtime·sighandler(int32 sig, Siginfo *info, void *context, G *gp) -{ - UcontextT *uc = context; - McontextT *mc = &uc->uc_mcontext; - uintptr *sp; - SigTab *t; - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)mc->__gregs[REG_RIP], - (uint8*)mc->__gregs[REG_RSP], nil, gp); - return; - } - - t = &runtime·sigtab[sig]; - if(info->_code != SI_USER && (t->flags & SigPanic)) { - if(gp == nil || gp == m->g0) - goto Throw; - // Make it look like a call to the signal func. - // We need to pass arguments out of band since augmenting the - // stack frame would break the unwinding code. - gp->sig = sig; - gp->sigcode0 = info->_code; - gp->sigcode1 = *(uintptr*)&info->_reason[0]; /* _addr */ - gp->sigpc = mc->__gregs[REG_RIP]; - - // Only push runtime·sigpanic if __gregs[REG_RIP] != 0. - // If __gregs[REG_RIP] == 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(mc->__gregs[REG_RIP] != 0) { - sp = (uintptr*)mc->__gregs[REG_RSP]; - *--sp = mc->__gregs[REG_RIP]; - mc->__gregs[REG_RSP] = (uintptr)sp; - } - mc->__gregs[REG_RIP] = (uintptr)runtime·sigpanic; - return; - } - - if(info->_code == SI_USER || (t->flags & SigNotify)) - if(runtime·sigsend(sig)) - return; - if(t->flags & SigKill) - runtime·exit(2); - if(!(t->flags & SigThrow)) - return; - -Throw: - 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", mc->__gregs[REG_RIP]); - 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()){ - runtime·traceback((void*)mc->__gregs[REG_RIP], - (void*)mc->__gregs[REG_RSP], 0, gp); - runtime·tracebackothers(gp); - runtime·dumpregs(mc); - } - - runtime·exit(2); -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = p; - st.ss_size = n; - st.ss_flags = 0; - if(p == nil) - st.ss_flags = SS_DISABLE; - runtime·sigaltstack(&st, nil); -} - -void -runtime·setsig(int32 i, void (*fn)(int32, Siginfo*, void*, G*), bool restart) -{ - Sigaction sa; - - // If SIGHUP handler is SIG_IGN, assume running - // under nohup and do not set explicit handler. - if(i == SIGHUP) { - runtime·memclr((byte*)&sa, sizeof sa); - runtime·sigaction(i, nil, &sa); - if(sa._sa_u._sa_sigaction == SIG_IGN) - return; - } - - runtime·memclr((byte*)&sa, sizeof sa); - sa.sa_flags = SA_SIGINFO|SA_ONSTACK; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask[0] = ~0U; - sa.sa_mask[1] = ~0U; - sa.sa_mask[2] = ~0U; - sa.sa_mask[3] = ~0U; - if (fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa._sa_u._sa_sigaction = (void*)fn; - runtime·sigaction(i, &sa, nil); -} - -void -runtime·lwp_mcontext_init(McontextT *mc, void *stack, M *mp, G *gp, void (*fn)(void)) -{ - // Machine dependent mcontext initialisation for LWP. - mc->__gregs[REG_RIP] = (uint64)runtime·lwp_tramp; - mc->__gregs[REG_RSP] = (uint64)stack; - mc->__gregs[REG_R8] = (uint64)mp; - mc->__gregs[REG_R9] = (uint64)gp; - mc->__gregs[REG_R12] = (uint64)fn; -} |