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00039 #include <config.h>
00040
00041 #include "StackTrace.h"
00042 #include <dlfcn.h>
00043 #include <stdio.h>
00044 #include <stdlib.h>
00045 #include <string.h>
00046 #include <unistd.h>
00047
00048 namespace oasys {
00049
00050 void
00051 StackTrace::print_current_trace(bool in_sighandler)
00052 {
00053 void *stack[MAX_STACK_DEPTH];
00054 memset(stack, 0, sizeof(stack));
00055 size_t count = get_trace(stack, MAX_STACK_DEPTH, in_sighandler ? 3 : 0);
00056 if (count > 0) {
00057 print_trace(stack + 2, count - 2);
00058 } else {
00059 char buf[1024];
00060 strncpy(buf, "NO STACK TRACE AVAILABLE ON THIS ARCHITECTURE\n",
00061 sizeof(buf));
00062 write(2, buf, strlen(buf));
00063 }
00064 }
00065
00066 void
00067 StackTrace::print_trace(void *stack[], size_t count)
00068 {
00069 char buf[1024];
00070 void* addr;
00071
00072 strncpy(buf, "STACK TRACE: ", sizeof(buf));
00073 write(2, buf, strlen(buf));
00074
00075 for (size_t i = 0; i < count; ++i) {
00076 addr = stack[i];
00077
00078 #if HAVE_DLADDR
00079 Dl_info info;
00080 if (dladdr(addr, &info)) {
00081 int dll_offset = (int)((char*)addr - (char*)info.dli_fbase);
00082 sprintf(buf, "0x%08x:%s@0x%08x+0x%08x ",
00083 (u_int)addr, info.dli_fname,
00084 (u_int)info.dli_fbase, dll_offset);
00085 } else
00086 #endif
00087 {
00088 sprintf(buf, "%p ", addr);
00089 }
00090
00091 write(2, buf, strlen(buf));
00092 }
00093 write(2, "\n", 1);
00094 }
00095
00096 #if defined(__i386__)
00097 #include "StackTrace-x86.cc"
00098
00099 #elif defined(__POWERPC__) || defined(PPC)
00100 #include "StackTrace-ppc.cc"
00101
00102 #elif HAVE_EXECINFO_H
00103
00104
00105 #include <execinfo.h>
00106 size_t
00107 StackTrace::get_trace(void* stack[], size_t size, u_int sighandler_frame)
00108 {
00109 (void)sighandler_frame;
00110 return backtrace(stack, size);
00111 }
00112
00113 #else
00114
00115
00116 size_t
00117 StackTrace::get_trace(void* stack[], size_t size, u_int sighandler_frame)
00118 {
00119 (void)sighandler_frame;
00120 memset(stack, 0, size);
00121 return 0;
00122 }
00123
00124 #endif
00125
00126 }