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00018 #include <config.h>
00019
00020 #include "StackTrace.h"
00021 #include <dlfcn.h>
00022 #include <stdio.h>
00023 #include <stdlib.h>
00024 #include <string.h>
00025 #include <unistd.h>
00026
00027 namespace oasys {
00028
00029 void
00030 StackTrace::print_current_trace(bool in_sighandler)
00031 {
00032 void *stack[MAX_STACK_DEPTH];
00033 memset(stack, 0, sizeof(stack));
00034 size_t count = get_trace(stack, MAX_STACK_DEPTH, in_sighandler ? 3 : 0);
00035 if (count > 0) {
00036 print_trace(stack + 2, count - 2);
00037 } else {
00038 char buf[1024];
00039 strncpy(buf, "NO STACK TRACE AVAILABLE ON THIS ARCHITECTURE\n",
00040 sizeof(buf));
00041 write(2, buf, strlen(buf));
00042 }
00043 }
00044
00045 void
00046 StackTrace::print_trace(void *stack[], size_t count)
00047 {
00048 char buf[1024];
00049 void* addr;
00050
00051 strncpy(buf, "STACK TRACE: ", sizeof(buf));
00052 write(2, buf, strlen(buf));
00053
00054 for (size_t i = 0; i < count; ++i) {
00055 addr = stack[i];
00056
00057 #if HAVE_DLADDR
00058 Dl_info info;
00059 if (dladdr(addr, &info)) {
00060 int dll_offset = (int)((char*)addr - (char*)info.dli_fbase);
00061 sprintf(buf, "0x%08x:%s@0x%08x+0x%08x ",
00062 (u_int)addr, info.dli_fname,
00063 (u_int)info.dli_fbase, dll_offset);
00064 } else
00065 #endif
00066 {
00067 sprintf(buf, "%p ", addr);
00068 }
00069
00070 write(2, buf, strlen(buf));
00071 }
00072 write(2, "\n", 1);
00073 }
00074
00075 #if defined(__i386__)
00076 #include "StackTrace-x86.cc"
00077
00078 #elif defined(__POWERPC__) || defined(PPC)
00079 #include "StackTrace-ppc.cc"
00080
00081 #elif HAVE_EXECINFO_H
00082
00083
00084 #include <execinfo.h>
00085 size_t
00086 StackTrace::get_trace(void* stack[], size_t size, u_int sighandler_frame)
00087 {
00088 (void)sighandler_frame;
00089 return backtrace(stack, size);
00090 }
00091
00092 #else
00093
00094
00095 size_t
00096 StackTrace::get_trace(void* stack[], size_t size, u_int sighandler_frame)
00097 {
00098 (void)sighandler_frame;
00099 memset(stack, 0, size);
00100 return 0;
00101 }
00102
00103 #endif
00104
00105 }