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57 lines
1.0 KiB
57 lines
1.0 KiB
/* This is the code from `man backtrace_symbols`, reformatted, and without
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* requiring a command-line argument */
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#include <execinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define BT_BUF_SIZE 100
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void myfunc3(void)
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{
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int nptrs;
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void* buffer[BT_BUF_SIZE];
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char** strings;
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size_t j;
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nptrs = backtrace(buffer, BT_BUF_SIZE);
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printf("backtrace() returned %d addresses\n", nptrs);
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/* The call backtrace_symbols_fd(buffer, nptrs, STDOUT_FILENO)
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would produce similar output to the following: */
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strings = backtrace_symbols(buffer, nptrs);
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if (strings == NULL) {
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perror("backtrace_symbols");
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exit(EXIT_FAILURE);
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}
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for (j = 0; j < nptrs; j++) {
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printf("%s\n", strings[j]);
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}
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free(strings);
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}
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static void /* "static" means don't export the symbol... */
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myfunc2(void)
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{
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myfunc3();
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}
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void myfunc(int ncalls)
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{
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if (ncalls > 1) {
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myfunc(ncalls - 1);
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} else {
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myfunc2();
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}
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}
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int main(int argc, char* argv[])
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{
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myfunc(5);
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exit(EXIT_SUCCESS);
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}
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