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authorRuss Cox <rsc@golang.org>2009-03-30 00:01:07 -0700
committerRuss Cox <rsc@golang.org>2009-03-30 00:01:07 -0700
commitd4306d14f2d0c3c0b7a93ed0b498180b8e6d6a35 (patch)
treebf180d18aa981bdbf3219e42024b2a50cdf40ea2 /src/runtime/linux/signal.c
parentbed21b26fbc15d865eb8b5855c93a49a48fba73b (diff)
downloadgolang-d4306d14f2d0c3c0b7a93ed0b498180b8e6d6a35.tar.gz
more 386 runtime - can run tiny c programs.
R=r DELTA=1926 (1727 added, 168 deleted, 31 changed) OCL=26876 CL=26878
Diffstat (limited to 'src/runtime/linux/signal.c')
-rw-r--r--src/runtime/linux/signal.c111
1 files changed, 0 insertions, 111 deletions
diff --git a/src/runtime/linux/signal.c b/src/runtime/linux/signal.c
deleted file mode 100644
index 87bea263a..000000000
--- a/src/runtime/linux/signal.c
+++ /dev/null
@@ -1,111 +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.h"
-#include "signals.h"
-#include "os.h"
-
-void
-dumpregs(Sigcontext *r)
-{
- printf("rax %X\n", r->rax);
- printf("rbx %X\n", r->rbx);
- printf("rcx %X\n", r->rcx);
- printf("rdx %X\n", r->rdx);
- printf("rdi %X\n", r->rdi);
- printf("rsi %X\n", r->rsi);
- printf("rbp %X\n", r->rbp);
- printf("rsp %X\n", r->rsp);
- printf("r8 %X\n", r->r8 );
- printf("r9 %X\n", r->r9 );
- printf("r10 %X\n", r->r10);
- printf("r11 %X\n", r->r11);
- printf("r12 %X\n", r->r12);
- printf("r13 %X\n", r->r13);
- printf("r14 %X\n", r->r14);
- printf("r15 %X\n", r->r15);
- printf("rip %X\n", r->rip);
- printf("rflags %X\n", r->eflags);
- printf("cs %X\n", (uint64)r->cs);
- printf("fs %X\n", (uint64)r->fs);
- printf("gs %X\n", (uint64)r->gs);
-}
-
-/*
- * This assembler routine takes the args from registers, puts them on the stack,
- * and calls sighandler().
- */
-extern void sigtramp(void);
-extern void sigignore(void); // just returns
-extern void sigreturn(void); // calls sigreturn
-
-void
-sighandler(int32 sig, Siginfo* info, void* context)
-{
- Ucontext *uc;
- Mcontext *mc;
- Sigcontext *sc;
-
- if(panicking) // traceback already printed
- sys_Exit(2);
-
- uc = context;
- mc = &uc->uc_mcontext;
- sc = (Sigcontext*)mc; // same layout, more conveient names
-
- if(sig < 0 || sig >= NSIG)
- printf("Signal %d\n", sig);
- else
- printf("%s\n", sigtab[sig].name);
-
- printf("Faulting address: %p\n", *(void**)info->_sifields);
- printf("PC=%X\n", sc->rip);
- printf("\n");
-
- if(gotraceback()){
- traceback((void*)sc->rip, (void*)sc->rsp, (void*)sc->r15);
- tracebackothers((void*)sc->r15);
- dumpregs(sc);
- }
-
- sys·Breakpoint();
- sys_Exit(2);
-}
-
-void
-signalstack(byte *p, int32 n)
-{
- Sigaltstack st;
-
- st.ss_sp = p;
- st.ss_size = n;
- st.ss_flags = 0;
- sigaltstack(&st, nil);
-}
-
-void
-initsig(void)
-{
- static Sigaction sa;
-
- int32 i;
- sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER;
- sa.sa_mask = 0xFFFFFFFFFFFFFFFFULL;
- sa.sa_restorer = (void*)sigreturn;
- for(i = 0; i<NSIG; i++) {
- if(sigtab[i].flags) {
- if(sigtab[i].flags & SigCatch)
- sa.sa_handler = (void*)sigtramp;
- else
- sa.sa_handler = (void*)sigignore;
- if(sigtab[i].flags & SigRestart)
- sa.sa_flags |= SA_RESTART;
- else
- sa.sa_flags &= ~SA_RESTART;
- rt_sigaction(i, &sa, nil, 8);
- }
- }
-}
-