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authorMichael Stapelberg <michael@stapelberg.de>2013-03-23 11:28:53 +0100
committerMichael Stapelberg <michael@stapelberg.de>2013-03-23 11:28:53 +0100
commitb39e15dde5ec7b96c15da9faf4ab5892501c1aae (patch)
tree718cede1f6ca97d082c6c40b7dc3f4f6148253c0 /src/pkg/runtime/signal_freebsd_arm.c
parent04b08da9af0c450d645ab7389d1467308cfc2db8 (diff)
downloadgolang-upstream/1.1_hg20130323.tar.gz
Imported Upstream version 1.1~hg20130323upstream/1.1_hg20130323
Diffstat (limited to 'src/pkg/runtime/signal_freebsd_arm.c')
-rw-r--r--src/pkg/runtime/signal_freebsd_arm.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/src/pkg/runtime/signal_freebsd_arm.c b/src/pkg/runtime/signal_freebsd_arm.c
deleted file mode 100644
index 50c3221bb..000000000
--- a/src/pkg/runtime/signal_freebsd_arm.c
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright 2012 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"
-
-#define r0 __gregs[0]
-#define r1 __gregs[1]
-#define r2 __gregs[2]
-#define r3 __gregs[3]
-#define r4 __gregs[4]
-#define r5 __gregs[5]
-#define r6 __gregs[6]
-#define r7 __gregs[7]
-#define r8 __gregs[8]
-#define r9 __gregs[9]
-#define r10 __gregs[10]
-#define r11 __gregs[11]
-#define r12 __gregs[12]
-#define r13 __gregs[13]
-#define r14 __gregs[14]
-#define r15 __gregs[15]
-#define cpsr __gregs[16]
-
-void
-runtime·dumpregs(Mcontext *r)
-{
- runtime·printf("r0 %x\n", r->r0);
- runtime·printf("r1 %x\n", r->r1);
- runtime·printf("r2 %x\n", r->r2);
- runtime·printf("r3 %x\n", r->r3);
- runtime·printf("r4 %x\n", r->r4);
- runtime·printf("r5 %x\n", r->r5);
- runtime·printf("r6 %x\n", r->r6);
- runtime·printf("r7 %x\n", r->r7);
- runtime·printf("r8 %x\n", r->r8);
- runtime·printf("r9 %x\n", r->r9);
- runtime·printf("r10 %x\n", r->r10);
- runtime·printf("fp %x\n", r->r11);
- runtime·printf("ip %x\n", r->r12);
- runtime·printf("sp %x\n", r->r13);
- runtime·printf("lr %x\n", r->r14);
- runtime·printf("pc %x\n", r->r15);
- runtime·printf("cpsr %x\n", r->cpsr);
-}
-
-extern void runtime·sigtramp(void);
-
-typedef struct sigaction {
- union {
- void (*__sa_handler)(int32);
- void (*__sa_sigaction)(int32, Siginfo*, void *);
- } __sigaction_u; /* signal handler */
- int32 sa_flags; /* see signal options below */
- Sigset sa_mask; /* signal mask to apply */
-} Sigaction;
-
-void
-runtime·sighandler(int32 sig, Siginfo *info, void *context, G *gp)
-{
- Ucontext *uc;
- Mcontext *r;
- SigTab *t;
-
- uc = context;
- r = &uc->uc_mcontext;
-
- if(sig == SIGPROF) {
- runtime·sigprof((uint8*)r->r15, (uint8*)r->r13, (uint8*)r->r14, gp);
- return;
- }
-
- t = &runtime·sigtab[sig];
- if(info->si_code != SI_USER && (t->flags & SigPanic)) {
- if(gp == nil || gp == m->g0)
- goto Throw;
- // 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 = info->si_code;
- gp->sigcode1 = (uintptr)info->si_addr;
- gp->sigpc = r->r15;
-
- // Only push runtime·sigpanic if r->mc_rip != 0.
- // If r->mc_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(r->r15 != 0)
- r->r14 = r->r15;
- // In case we are panicking from external C code
- r->r10 = (uintptr)gp;
- r->r9 = (uintptr)m;
- r->r15 = (uintptr)runtime·sigpanic;
- return;
- }
-
- if(info->si_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", r->r15);
- 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*)r->r15, (void*)r->r13, (void*)r->r14, gp);
- runtime·tracebackothers(gp);
- runtime·printf("\n");
- runtime·dumpregs(r);
- }
-
-// breakpoint();
- runtime·exit(2);
-}
-
-void
-runtime·signalstack(byte *p, int32 n)
-{
- Sigaltstack st;
-
- st.ss_sp = (uint8*)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.__sigaction_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.__bits[0] = ~(uint32)0;
- sa.sa_mask.__bits[1] = ~(uint32)0;
- sa.sa_mask.__bits[2] = ~(uint32)0;
- sa.sa_mask.__bits[3] = ~(uint32)0;
- if (fn == runtime·sighandler)
- fn = (void*)runtime·sigtramp;
- sa.__sigaction_u.__sa_sigaction = (void*)fn;
- runtime·sigaction(i, &sa, nil);
-}
-
-void
-runtime·checkgoarm(void)
-{
- // TODO(minux)
-}
-
-#pragma textflag 7
-int64
-runtime·cputicks(void)
-{
- // Currently cputicks() is used in blocking profiler and to seed runtime·fastrand1().
- // runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
- // TODO: need more entropy to better seed fastrand1.
- return runtime·nanotime();
-}