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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2022 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#include "stacktrace.h"
#ifdef USE_UNIX_BACKTRACE_SUPPORT
#include "utils.h"
#include
#include
#include
#include
#include
void print_stacktrace(FILE* output, bool demangling, int maxdepth, bool lowMem)
{
// 32 vs. 64bit
#define ADDRESSDISPLAYLENGTH ((sizeof(long)==8)?12:8)
const int fd = fileno(output);
void *callstackArray[32]= {nullptr}; // the less resources the better...
const int currentdepth = backtrace(callstackArray, (int)getArrayLength(callstackArray));
const int offset=2; // some entries on top are within our own exception handling code or libc
if (maxdepth(firstBracketName+1))) {
char input_buffer[1024]= {0};
strncpy(input_buffer, firstBracketName+1, plus-firstBracketName-1);
size_t length = getArrayLength(demangle_buffer);
int status=0;
// We're violating the specification - passing stack address instead of malloc'ed heap.
// Benefit is that no further heap is required, while there is sufficient stack...
realnameString = abi::__cxa_demangle(input_buffer, demangle_buffer, &length, &status); // non-NULL on success
}
}
const int ordinal=i-offset;
fprintf(output, "#%-2d 0x",
ordinal);
if (padLen>0)
fprintf(output, "%0*d",
padLen, 0);
if (realnameString) {
fprintf(output, "%.*s in %s\n",
(int)(secondBracketAddress-firstBracketAddress-3), firstBracketAddress+3,
realnameString);
} else {
fprintf(output, "%.*s in %.*s\n",
(int)(secondBracketAddress-firstBracketAddress-3), firstBracketAddress+3,
(int)(firstBracketAddress-symbolString), symbolString);
}
}
free(symbolStringList);
} else {
fputs("Callstack could not be obtained\n", output);
}
}
#undef ADDRESSDISPLAYLENGTH
}
#endif // USE_UNIX_BACKTRACE_SUPPORT