mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-20 17:25:37 +01:00
133 lines
2.6 KiB
C++
133 lines
2.6 KiB
C++
/****************************************************************************/
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/* PAB: Signal magic. Processor state dump is x86-64 specific */
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/****************************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <iostream>
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#include <Grid.h>
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#undef __X86_64
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#define MAC
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#ifdef MAC
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#include <execinfo.h>
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#endif
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namespace Grid {
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std::streambuf *Grid_saved_stream_buf;
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#if 0
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void Grid_quiesce_nodes(void)
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{
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#ifdef GRID_COMMS_MPI
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int me;
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MPI_Comm_rank(MPI_COMM_WORLD,&me);
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std::streambuf* Grid_saved_stream_buf = std::cout.rdbuf();
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if ( me ) {
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std::ofstream file("log.node");
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std::cout.rdbuf(file.rdbuf());
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}
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#endif
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}
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#endif
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void Grid_quiesce_nodes(void)
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{
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#ifdef GRID_COMMS_MPI
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int me;
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MPI_Comm_rank(MPI_COMM_WORLD,&me);
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if ( me ) {
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std::cout.setstate(std::ios::badbit);
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}
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#endif
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}
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void Grid_unquiesce_nodes(void)
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{
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#ifdef GRID_COMMS_MPI
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std::cout.clear();
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#endif
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}
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void Grid_init(int *argc,char ***argv)
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{
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#ifdef GRID_COMMS_MPI
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MPI_Init(argc,argv);
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#endif
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Grid_debug_handler_init();
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Grid_quiesce_nodes();
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}
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void Grid_finalize(void)
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{
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#ifdef GRID_COMMS_MPI
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MPI_Finalize();
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#endif
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}
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double usecond(void) {
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struct timeval tv;
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gettimeofday(&tv,NULL);
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return 1.0*tv.tv_usec + 1.0e6*tv.tv_sec;
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}
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#define _NBACKTRACE (256)
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void * Grid_backtrace_buffer[_NBACKTRACE];
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void Grid_sa_signal_handler(int sig,siginfo_t *si,void * ptr)
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{
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printf("Caught signal %d\n",si->si_signo);
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printf(" mem address %lx\n",(uint64_t)si->si_addr);
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printf(" code %d\n",si->si_code);
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#ifdef __X86_64
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ucontext_t * uc= (ucontext_t *)ptr;
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struct sigcontext *sc = (struct sigcontext *)&uc->uc_mcontext;
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printf(" instruction %llx\n",(uint64_t)sc->rip);
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#define REG(A) printf(" %s %lx\n",#A, sc-> A);
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REG(rdi);
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REG(rsi);
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REG(rbp);
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REG(rbx);
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REG(rdx);
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REG(rax);
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REG(rcx);
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REG(rsp);
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REG(rip);
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REG(r8);
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REG(r9);
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REG(r10);
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REG(r11);
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REG(r12);
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REG(r13);
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REG(r14);
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REG(r15);
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#endif
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#ifdef MAC
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int symbols = backtrace (Grid_backtrace_buffer,_NBACKTRACE);
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char **strings = backtrace_symbols(Grid_backtrace_buffer,symbols);
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for (int i = 0; i < symbols; i++){
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printf ("%s\n", strings[i]);
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}
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#endif
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exit(0);
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return;
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};
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void Grid_debug_handler_init(void)
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{
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struct sigaction sa,osa;
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sigemptyset (&sa.sa_mask);
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sa.sa_sigaction= Grid_sa_signal_handler;
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sa.sa_flags = SA_SIGINFO;
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sigaction(SIGSEGV,&sa,NULL);
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sigaction(SIGTRAP,&sa,NULL);
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}
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}
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